LC7234-8460 Single-chip Microcontroller with Driver Prelimin

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

LC7234-8460 Single-chip Microcontroller with Driver Prelimin

Datasheet Thumbnail

Top Searches for this datasheet

Ordering number:ENN*4350
LC7234-8460
Single-chip Microcontroller with Driver
Preliminary Overview
LC7234-8460 single-chip microcontroller that incorporates phase-locked loop (PLL) liquid crystal display driver. LC7234-8460 operates over American, European, Chinese, Middle Eastern, Canadian Australian bands, incorporates preset-channel memory, automatic manual tuning, high-speed station search, clock timer functions. LC7234-8460 operates from supply available 64-pin QIPs.
Package Dimensions
unit:mm 3159-QIP64E
[LC7234-8460]
17.2 14.0 0.35 0.15
17.2
14.0
Features
Operates over SW1, bands. Three selectable preset memory configurations. Automatic tuning manual preset memory scan. High-speed station search. band: step. band: step. Clock function. SLEEP timer functions. Logic-level momentary switch band select inputs. display with wide viewing angle high contrast over wide operating temperature range. On-chip amplifier external lowpass filter. External network reset required. Forced mono mode. High signal-to-noise ratio. Single supply. 64-pin QIPs.
3.0max
15.6
SANYO QIP64E
Assignment
view
SANYO products described contained herein have specifications that handle applications that require extremely high levels reliability, such life-support systems, aircraft's control systems, other applications whose failure reasonably expected result serious physical and/or material damage. Consult with your SANYO representative nearest before using SANYO products described contained herein such applications. SANYO assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges,or other parameters) listed products specifications SANYO products described contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O1501TN (KT)/32693JN No.4350-1/23
LC7234-8460
Function
Number Name TEST2 STEREO BAND1 BAND0 MO/ST FM/AM AMUTE TIMER COM2, COM1 HOLD TEST IFIN TIMER CONT FMOSC AMOSC AOUT TEST1 XOUT 4.5MHz crystal oscillator input connection. Test input. Normally connected GND. Active-LOW station detect input. During autotuning, this input active when station detected. Connect when use. Active-LOW stereo detect input. When during mode, STEREO display Connect when use. Band select inputs. Active when SELBND band select tables. Active-HIGH mono/stereo indicator output. Mono when stereo when HIGH. level after reset. Leave open when use. Active-HIGH FM/AM band select output. when when HIGH. HIGH level after reset. Leave open when use. Active-LOW medium/short wave band select output. when HIGH SW(LW) when LOW. level after reset. Leave open when use. Active-HIGH short wave band select output. when when HIGH. level after reset. Leave open when use. Active-HIGH audio mute control output. Cuts audio output when changing receiver frequency. HIGH level after reset. Leave open when use. Active-HIGH AM/FM select output. when when HIGH. level after reset. Leave open when use. Active-HIGH timer control output. HIGH during timer sleep mode operation. level after reset. Leave open when use. Active-HIGH diode matrix scan outputs.The matrix scanned when LOW-to-HIGH transition occurs HOLD. Device initialized data changed. level after reset. Leave open when use. Active-HIGH matrix scan outputs.The matrix scanned only when corresponding pressed. Goes HIGH after each scan. HIGH level after reset. Leave open when use. Active-HIGH scan inputs. Connect when use. Segment driver outputs. Leave open when use. Common driver outputs. Leave open when use. Active-LOW hold mode control input. When HIGH-to-LOW transition occurs clock operating, hold mode selected (IDD 0.7mA typ.). When HIGH-to-LOW transition occurs clock operating, backup mode selected (IDD max.). Active-HIGH test input. Test description further information. AM/FM signal input. Connect when use. Active-LOW timer control input. Timer operating when operating when HIGH. Connect when use. supply local oscillator input. Connect when use. local oscillator input. Connect when use. Ground Phase comparator output. Lowpass filter amplifier input connection. Connect when use. Lowpass filter amplifier output connection. Connect when use. Test input. Normally connected GND. 4.5MHz crystal oscillator output connection. Description
Specifications
Absolute Maximum Ratings 25°C,
Parameter Supply voltage Input voltage Symbol VIN1 VIN2 Output voltage VOUT1 VOUT2 IOUT1 IOUT2 IOUT3 IOUT4 Topr Tstg HOLD, TEST, STEREO, TIMER CONT, BAND0, BAND1 other inputs MO/ST, FM/AM, AOUT other outputs MO/ST, FM/AM M/S(L), AMUTE, TIMER OUT, AOUT Ta=- +85°C Conditions Ratings
+6.5 VDD+0.3 VDD+0.3
Unit
Output current
Allowable power dissipation Operating temperature Storage temperature
+125
No.4350-2/23
LC7234-8460
Reommended Operating Conditions +85°C, 5.5V
Parameter Symbol VDD1 VDD2 VDD3 Input high-level voltage VIH1 VIH2 VIH3 Input low-level voltage VIL1 VIL2 VIL3 fIN1 fIN2 fIN3 fIN4 fIN5 VIN1 VIN2 VIN3,4 VIN5 Conditions CPU, operating operating Data retention STEREO, BAND0, BAND1, TIMER CONT TEST HOLD STEREO, BAND0, BAND1, TIMER CONT HOLD TEST FMOSC, VIN2, VDD1 AMOSC (LW, MW), VIN3, VDD1 AMOSC (SW), VIN4, VDD1 IFIN, VIN5, VDD1 FMOSC AMOSC IFIN Ratings 0.7VDD 0.6VDD 0.8VDD
0.3VDD 0.4VDD 0.2VDD
Unit
Supply voltage
Input frequency
0.50 0.10 0.10 0.10
Input amplitude
Vrms
Electrical Characteristics Under recommended operating conditions
Parameter Power-down detection voltage Symbol VDET IIH1 Input high-level curret IIH2 IIH3 IIH4 IIH5 IIL1 Input low-level curret IIL2 IIL3 IIL4 Input floating voltage Pull-down resistance IOFFH1 IOFFH2 Output leakage current IOFFH3 IOFFH4 IOFFL1 IOFFL2 VOH1 VOH2 Output high-level voltage VOH3 VOH4 VOH5 VOH6 VOL1 VOL2 VOL3 VOL4 VOL5 VOL6 VOL7 VOL8 HOLD, STEREO, TIMER CONT, TEST, BAND0, BAND1: VI=5.5V XIN: VI=VDD=5.0V FMIN, AMIN, IFIN: VI=VDD=5.0V VI=VDD=5.0V AIN: VI=VDD VI=VSS, HOLD, STEREO, TIMER CONT, TEST, BAND0, BAND1 VI=VSS, VI=VSS, OSC, OSC, IFIN AIN: VI=VSS VDD=5.0V VO=VDD TIMER OUT, AMUTE, M/S(L): VO=VDD FM/AM, MO/ST: VO=13V AOUT: VO=13V VO=VSS TIMER OUT, AMUTE, M/S(L): VO=VSS IO=1mA TIMER OUT, AMUTE, M/S(L): IO=1mA IO=500µA XOUT: IO=200µA S23: IO=- 0.1mA COM1, COM2: IO=25µA IO=50µA TIMER OUT, AMUTE, M/S(L): IO=1mA IO=50µA XOUT: IO=200µA S23: IO=0.1mA AOUT: IO=5mA, AIN=1.3V COM1, COM2: IO=25µA FM/AM, MO/ST: IO=5mA 0.75 (150)
VDD- VDD- VDD- VDD- VDD-
VDD- 0.75
Conditions
Ratings 0.01
Unit
0.05VDD
0.01
VDD- VDD-
VDD-
VDD-
0.75 (400)
Output low-level voltage
Continued next page. No.4350-3/23
LC7234-8460
Continued from preceding page.
Parameter MID-level output voltage Symbol IDD1 IDD2 Supply current IDD3 IDD4 Conditions COM1, COM2, VDD=5V, IO=20µA VDD1, fIN2=130MHz VDD2, operating, Hold mode measurement circuit VDD=5.5V, Oscillator operating, Ta=25°C, Backup mode measurement circuit VDD=2.2V, Oscillator stopped, Ta=25°C, Backup mode measurement circuit Ratings Unit
Measurement Circuits
Hold mode IDD2
Note pins STEREO, BAND0 BAND1 Pins TIMER OUT, AMUTE, M/S(L), FM/AM, MO/ST open Backup mode IDD3
Note Pins STEREO, BAND0, BAND1, TIMER OUT, AMUTE, M/S(L), FM/AM, MO/ST, S23, COM1, COM2 open
No.4350-4/23
LC7234-8460 Functional Description
Band Coverage
Region Band China United States United States Europe Middle East Common Common Canada, Australia World Frequency range [FM, (MHz) (kHz)] 87.0 108.0 1602 1611 2.28 6.23 21.85 87.5 107.9 1602 1710 87.5 108.0 1602 1710 87.5 108.0 1602 1611 87.5 108.0 1602 1611 2.28 6.23 21.85 87.5 108.0 1602 1602 5.95 15.6 87.5 108.0 1602 1611 12.5 87.5 108.0 1602 1611 87.5 108.0 1602 1611 12.5
Frequency step (kHz) Comparison frequency (kHz)
Center frequency (MHz) (kHz)] 10.7 450/468 450/468 10.7 450/468 10.7 450/468 10.7 450/468 450/468 450/468 10.7 450/468 450/468 10.7 450/468 450/468 10.7 450/468 450/468 10.7 450/468 450/468 10.7 450/468 450/468 450/468
100/50 100/50 100/50 100/50 100/50 100/50 100/50
WORLD
Band Selection When SELBND BAND0 BAND1 select frequency band shown following table. When
BAND1 BAND0 U.S.A., Canada, Australia (FM) (FM) Europe (FM)
SELBND BAND, keys select frequency band.
Middle East, China Common (FM) Common (FM) World
frequency band selection determines logic levels FM/AM, M/S(L), shown following table.
BAND SW1(LW) name FM/AM HIGH M/S(L) HIGH HIGH HIGH HIGH HIGH
Preset Memory Channels
Preset memory values PSCH2 PSCH1 Number frequency bands Illegal SW1/LW
No.4350-5/23
LC7234-8460
band search ranges
BAND Frequency range (MHz) 2.28 2.495 4.75 5.06 5.95 6.23 11.65 12.5 13.6 13.8 15.1 15.6 17.55 17.9 21.45 21.85 5.95 6.23 11.65 12.5 13.6 13.8 15.1 15.6 4.75 5.06 5.95 6.23 11.65 12.5 WORLD SELBAND SELTMR SELMW SELFM SELIF IFCNT COLON 12/24H
Key/diode Matrix Diode matrix functions
Diode matrix name CLOCK ON/OFF Function Without clock functions With clock functions 12-hour clock 24-hour clock Flashing. frequency range select frequency range select Without timer With timer Logic-level input band select Momentary switch band select Band select using Selects WORLD band
Function positions
Output Input CH1/TIMER BAND CLOCK SELIF SELBND CH2/TIMER DOWN MO/ST 12/24H SELFM PSCH1 SLEEP (SW1) COLON SELMW PSCH2 IFCNT SELTMR WORLD DISPLAY (SW2) (SWA), (SWB)
Notes indicates that diode matrix element either following configuations.
indicates that diode matrix element momentary switch configuation.
No.4350-6/23
LC7234-8460
Display Driver China Middel East configuation panel used China Middle East only shown following figure,
pin-to-segment relationship, following table.
Segment output
Common driver output COM1 COM2 STEREO COLON
Segment output
Common driver output COM1 COM2 TIMER SLEEP
other regions configuration panel used regions other than China Middle East shown
following figure, pin-to-segment relationship, following table.
No.4350-7/23
LC7234-8460
Segment output Common driver output COM1 COM2 STEREO COLON Segment output Common driver output COM1 COM2 TIMER SLEEP
Hold Mode When clock enabled HOLD makes HIGH-toLOW transition, FMOSC, AMOSC, IFIN TEST inputs disabled only clock operates. this mode, supply current reduced (typ). Backup Mode When clock disabled HOLD makes HIGHto-LOW transition, FMOSC, AMOSC, IFIN TEST inputs disabled 4.5MHz crystal oscillator halted. this mode, supply current reduced (max). AMUTE becomes high impedance backup mode, pull-down resistor should connected between AMUTE ground. Functions Frequency display PSCH2 PSCH1 Write mode When pressed, flashing preset number appears system enters write mode seconds. preset memory keys pressed within seconds, presently selected frequency status written corresponding channel. pressed while displayed, write mode extended. When same preset memory pressed twice, AMUTE goes HIGH. other pressed HOLD makes HIGHto-LOW transition, write mode canceled. Read mode When preset memory keys pressed, corresponding frequency status displayed. PSCH2 PSCH1 HIGH Write mode When pressed, flashing preset number appears system enters write mode seconds. preset memory keys pressed within seconds, presently selected frequency status written corresponding channel.
pressed while displayed, write mode extended. When same preset memory pressed twice, AMUTE goes HIGH. other pressed HOLD makes HIGHto-LOW transition, write mode canceled. Read mode When preset memory keys pressed, corresponding frequency status displayed. PSCH2 HIGH PSCH1 Write mode When pressed, flashing `P1' appears frequency display area system enters write mode seconds. preset memory keys pressed within seconds, frequency status written corresponding channel channels When band selected, pressing while `P1' flashing changes display flashing `P2'. preset memory keys then pressed within seconds, frequency status written corresponding channel channels pressed while `P2' flashing, write mode canceled. When band selected, pressing while `P1' flashing cancels write mode. Read mode When band selected preset memory keys pressed once, frequency status read from corresponding channel channels preset memory keys pressed twice, frequency status read from corresponding channel channels When band selected preset memory keys pressed, corresponding frequency read out.
No.4350-8/23
LC7234-8460
DOWN When HOLD HIGH, each time DOWN pressed, frequency will down step, respectively. hold down these keys more than autosearch mode will start, next broadcasting station corresponding direction will searched for. search speed ms/step band ms/step band. Autosearch pauses when either pressed, regardless whether station been detected, then resumes. Autosearch searches from edge band other, pauses then resumes searching. BAND When HOLD HIGH, BAND used select frequency band. Each time BAND pressed, frequency band will change shown figures band select keys shown figure separating colon start flashing system enters mode. this mode, alter minute DOWN after hour. segments continue flashing between DOWN operations. Each time pressed, minute setting increases held down more than minute setting increases rate min/s. When adjusting minute setting, second setting reset second setting cannot adjusted independently from minute setting. DOWN Each time DOWN pressed, hour setting increases DOWN held down more than hour setting increases rate hr/s. second setting changed when adjusting hour setting. Canceling mode pressed pressed twice, mode canceled automatically. other pressed, mode canceled operation executed. Timer display When CH1/TIMER pressed, time selected, `TIMER' `ON' displayed, hour minute digits separating colon start flashing (500 OFF), system enters mode. this mode, alter minute DOWN alter hour. When CH2/TIMER pressed, time selected, `TIMER' `OFF' displayed, hour minute digits separating colon start flashing (500 OFF), system enters mode. this mode, alter minute DOWN alter hour.
Figure Band selection (WORLD
Figure Band selection (WORLD
Figure Band select keys When pressed, channel number changes next highest channel number than currently selected. channel number currently selected, then channel number selected. this case, AMUTE will signal received. During mode, channel number flashes (500 OFF). mode canceled DOWN, CH8, BAND pressed, HOLD makes HIGHto-LOW transition. MO/ST MO/ST used when receiving band. When MO/ST pressed, MO/ST port output will toggle between mono stereo. Clock display When clock timer setting displayed, function same when frequency displayed. When pressed, hour minute digits
Figure Timer setting timer setting mode canceled pressing same twice pressing mode cancel input key. pressed, timer setting mode canceled automatically after five seconds. Each time pressed, minute setting increases held down more than minute setting increases rate min/s.
No.4350-9/23
LC7234-8460
DOWN Each time DOWN pressed, hour setting increases DOWN held down more than hour setting increases rate hr/s. Other keys DISPLAY When HOLD HIGH clock enabled (DIMRX CLOCK =1), DISPLAY change what displayed. Each time DISPLAY pressed, display toggles DOWN When press either key, hour minute digits separating colon stop flashing remain
between frequency display clock displays shown following figure.
SLEEP SLEEP used sleep time. SLEEP pressed while `SLEEP' displayed, `SLEEP' `90' appear display. Each time SLEEP pressed while sleep time displayed, sleep time decreases minutes. Five seconds after setting sleep time, previous display restored. sleep time `SLEEP' display disappears sleep mode setting canceled. sleep time already been set, SLEEP pressed check remaining sleep time even while frequency clock displayed. After previous display restored. Tracking Point Frequency
Region Band China United States United States Europe Middle East
When sleep mode, TIMER HIGH. TEST When TEST pressed HOLD makes LOW-toHIGH transition, segments turn TEST pressed again, clock display turns assuming there clock, starts counting rate min/s. there clock, pressing TEST second time cancels test.
Channel 87.0 2.28 87.5 87.5 87.5 87.5 2.28 90.1 2.495 90.1 90.1 90.0 90.0 2.495 98.1 15.1 98.1 1000 98.1 1000 98.0 98.0 15.1 106.1 1404 1404 21.45 106.1 1404 1400 106.1 1404 1400 106.0 1404 1404 106.0 1404 1404 21.45 87.0 2.28 87.5 87.5 87.5 87.5 2.28 Last channel 87.0 2.28 87.5 87.5 87.5 87.5 2.28
Continued next page.
No.4350-10/23
LC7234-8460
Continued from preceding page.
Region Band Common Common Canada, Australia World Channel 87.5 5.95 87.5 87.5 87.5 90.0 90.0 5.00 90.0 90.0 5.00 98.0 98.0 98.0 98.0 106.0 1404 1404 13.8 106.0 1404 1404 11.65 106.0 1404 1404 106.0 1404 1404 11.65 87.5 5.95 87.5 87.5 87.5 Last channel 87.5 5.95 87.5 87.5 87.5
Power-up Status momentary switches connected band select inputs, lower edge band selected power-up. rocker switches connected, band determined input states BAND1 BAND0.
power-up, MO/ST status mono, display indicates tuning frequency, clock 12:00 timer 10:00.
Timing Diagrams
Automatic Up/down Scanning
Table count tolerance
10.7 450/468 ±1.5 450/468 ±0.6
Notes When using count, checked twice intervals. both checks successful, recognized. When using count, checked three times intervals. three checks successful, recognized. Scanning with DOWN
No.4350-11/23
LC7234-8460
Timer Functions Timer example
Notes Timer time 10:00. Timer time 12:00. Timer example
Note Timer times both 10:00. Simultaneous sleep timer operation following figures, timer time 10:00 timer time 12:00.
No.4350-12/23
LC7234-8460
Audio Mute timing periods shown following diagram represent following times. debounce reject time Audio mute lead time output delay BAND initiated muting
data display processing time Audio mute trailing time
DOWN initiated muting
Note band edge encountered during period length period changes
No.4350-13/23
LC7234-8460
initiated muting
Auto up/down function initiated muting
Hold Mode
Backup Mode
Note pull-down resistor should connected AMUTE.
No.4350-14/23
LC7234-8460 Typical Applications
Without Clock (Clock Momentary Switch Band Select
No.4350-15/23
LC7234-8460
With Clock (Clock Momentary Switch Band Select
No.4350-16/23
LC7234-8460
With Clock (Clock Logic-level Input Band Select
No.4350-17/23
LC7234-8460
Without Clock (Clock Momentary Switch Band Select
No.4350-18/23
LC7234-8460
With Clock (Clock Momentary Switch Band Select
No.4350-19/23
LC7234-8460
With Clock (Clock Logic-level Input Band Select
No.4350-20/23
LC7234-8460
2-band AM/FM Electronic Tuning Radio
No.4350-21/23
LC7234-8460
Peripheral Components Interface
No.4350-22/23
LC7234-8460
Specifications SANYO products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer's products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer's products equipment. SANYO Electric Co., Ltd. strives supply high-quality high-reliability products. However, semiconductor products fail with some probability. possible that these probabilistic failures could give rise accidents events that could endanger human lives, that could give rise smoke fire, that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO products(including technical data,services) described contained herein controlled under applicable local export control laws regulations, such products must expor without obtaining expor license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written permission SANYO Electric Co., Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO product that intend use. Information (including circuit diagrams circuit parameters) herein example only guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties.
This catalog provides information October, 2001. Specifications information herein subject change without notice.
No.4350-23/23

LC7234-8460 Single-chip Microcontroller with Driver Prelimin

Top Searches for this datasheet

Other recent searches