Operating voltage: 2.4V~5.5V Multiple display Integrated 256kHz oscill

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Operating voltage: 2.4V~5.5V Multiple display Integrated 256kHz oscill

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HT1632C Driver
Operating voltage: 2.4V~5.5V Multiple display Integrated 256kHz oscillator Serial interface DATA Data mode command mode instruction Cascading function extended applications Selectable NMOS open drain output driver
Integrated display select
display RAM, select display
16-level brightness control
PMOS open drain output driver commons
52-pin package
Applications
Industrial control indicator Digital clock, thermometer, counter, voltmeter Instrumentation readouts Other consumer application Displays
General Description
HT1632C memory mapping display controller/driver, which select number commons. These commons commons. device supports 16-gradation LEDs each line using control with software instructions. serial interface conveniently provided command mode data mode. Only three four lines required interface between host controller HT1632C. display extended cascading HT1632C wider applications.
Block Diagram
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HT1632C
Assignment
Description
Name ROW0~ROW23 ROW24/COM15~ ROW31/COM8 COM0~COM7 SYNC Description Line drivers. These pins drive LEDs. Drive outputs common outputs. Each double bonded. Common outputs. Each double bonded. Master Mode Master Mode command programmed, synchronous signal output pin. Slave Mode command programmed, synchronous signal input from pin. Master Mode command programmed, system clock source from on-chip oscillator system clock output pin. Slave Mode Master Mode command programmed, system clock source input from external clock pin. Serial data input output with pull-high resistor WRITE clock input with pull-high resistor Data DATA lines latched into HT1632C rising edge signal. READ clock input with pull-high resistor. HT1632C data clocked falling edge signal. clocked data will appear DATA line. host controller next rising edge latch clocked data. Chip select input with pull-high resistor When line high, data command read from written HT1632C disabled, serial interface circuit also reset. low, data command transmission between host controller HT1632C enabled. Positive power supply driver circuit. Each LED_VDD double bonded. Negative power supply driver circuit, ground. Each LED_VSS double bonded. Negative power supply logic circuit, ground. Positive power supply logic circuit.
DATA
LED_VDD LED_VSS
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HT1632C
Absolute Maximum Ratings
Supply Voltage .VSS-0.3V VSS+6.0V Input Voltage.VSS-0.3V VDD+0.3V Storage Temperature .-50°C 125°C Operating Temperature.-40°C 85°C
Note: These stress ratings only. Stresses exceeding range specified under Maximum cause substantial damage device. Functional operation this device other conditions beyond those listed specification implied prolonged exposure extreme conditions affect device reliability.
D.C. Characteristics
Symbol ISTB IOL1 IOH1 IOL2 IOH2 IOL3 IOH3 Parameter Operating Voltage Operating Current Standby Current Input Voltage Input High Voltage OSC, SYNC, DATA OSC, SYNC, DATA Sink Current Source Current Sink Current Source Current Pull-high Resistor
VDD=2.4V~5.5V, Ta=25°C (Unless otherwise specified) Test Conditions Conditions load, on-chip oscillator load, power down mode DATA, DATA, VOL=0.5V VOH=4.5V VOL=0.5V VOH=4.5V VOL=0.5V VOH=4.5V DATA, Min. 0.7VDD Typ. Max. 0.3VDD Unit
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HT1632C
A.C. Characteristics
Symbol fSYS fLED fCLK1 fCLK2 Parameter System Clock Duty Cycle Frame Frequency Serial Data Clock pin) Serial Data Clock pin) Serial Interface Reset Pulse Width Input Pulse Width Rise/Fall Time Serial Data Clock Width (Figure Setup Time DATA Clock Width (Figure Hold Time DATA Clock Width (Figure Setup Time Clock Width (Figure Hold Time Clock Width (Figure Read mode tsu1 VDD=2.4V~5.5V, Ta=25°C (Unless otherwise specified) Test Conditions Conditions On-chip oscillator duty 1/16 duty Duty cycle Duty cycle Write mode Min. Typ. fSYS/2624 fSYS/2624 Max. Unit
tCLK
Figure
Figure
Figure
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HT1632C
Functional Description
Display Memory static display memory (RAM) organized into bits bits used store display data. selected, size bits. selected, size bits. contents directly mapped contents driver. data COM7 ROW0 ROW1 ROW2 ROW3 ROW4 ROW5 ROW6 ROW7 ROW8 ROW9 ROW10 ROW11 ROW12 ROW13 ROW14 ROW15 ROW16 ROW17 ROW18 ROW19 ROW20 ROW21 ROW22 ROW23 ROW24 ROW25 ROW26 ROW27 ROW28 ROW29 ROW30 ROW31 COM6 COM5 COM4 Addr. Data corresponding will lighted. Data accessed READ, WRITE, READ-MODIFY-WRITE commands. contents read written from specific address. following mapping from pattern:
COM3
COM2
COM1
COM0 Addr. Data
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HT1632C
COM15 COM14 COM13 COM12 ROW0 ROW1 ROW2 ROW3 ROW4 ROW5 ROW6 ROW7 ROW8 ROW9 ROW10 ROW11 ROW12 ROW13 ROW14 ROW15 ROW16 ROW17 ROW18 ROW19 ROW20 ROW21 ROW22 ROW23 Addr. Data COM3 COM2 COM1 COM0 Addr. Data
Display
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HT1632C
System Oscillator HT1632C system clock used generate time base clock frequency, LED-driving clock. clock sourced from on-chip oscillator (256kHz), external clock using setting. configuration system oscillator shown. After command executed, system clock will stop duty cycle generator will turn off. This command however, available only on-chip oscillator. Once system clock stops, display will become blank, time base will also lose function. command used turn duty cycle generator off. After duty cycle generator switches issuing command, using command reduces power consumption, serving system power down command. external clock source chosen system clock, using command neither turn oscillator execute power down mode. crystal oscillator option applied connect external frequency source pin. this case, system fails enter power down mode, similar case external clock source operation. initial system power HT1632C state.
illa
namely indicates command mode successive commands have been issued, command mode except first command will omitted. command turns display disabling duty cycle generator. command, other hand, turns display enabling duty cycle generator. Name Command Code Function
10000000010X Turn outputs 10000000011X Turn outputs
ab=00: N-MOS open drain output common option ab=01: N-MOS open drain output common option Commons 1000010abXXX ab=10: P-MOS open Option drain output common option ab=11: P-MOS open drain output common option Blinker HT1632C display blinking capabilities. blink function generates blinking. blink rates 0.25s 0.25s blinking period This blinking function effectively performed setting BLINK BLINK command. Command Format
System Oscillator Configuration setting configure HT1632C. There mode commands configure HT1632C resources transfer display data. configuration mode HT1632C knows command mode,with command mode command mode consists system configuration command, system frequency selection command, configuration command, operating command. data mode, other hand, includes READ, WRITE, READ-MODIFY-WRITE operations.
Driver HT1632C pattern driver. configured pattern common N-MOS open drain output P-MOS open drain output driver using configuration. This feature makes HT1632C suitable multiple applications. LED-driving clock derived from system clock. driving clock frequency always 256kHz, on-chip oscillator frequency, external frequency. corresponding commands summarized table. bold form
Example Waveform Blinker
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following data mode command mode Operation Read Write Read-Modify-Write Command Mode Data Data Data Command Interfacing Only four lines required interface HT1632C. line used initialise serial interface circuit terminate communication between host controller HT1632C. data command issued between host controller HT1632C first disabled then initialised. Before issuing mode command mode switching, high level pulse required initialise serial interface HT1632C. DATA line serial data input/output line. Data read written commands written have passed through DATA line. line READ clock input. Data clocked falling edge signal, clocked data will then appear DATA line. recommended that host controller reads correct data during interval between rising edge next falling edge signal. line WRITE clock input. data, address, command DATA line clocked into HT1632 rising edge signal.
mode command should issued before data command transferred. successive commands have been issued, command mode namely omitted. While system operating non-successive command non-successive address data mode, should previous operation mode will reset also. Once returns operation mode should issued first.
Timing Diagrams
READ Mode Command Code
READ Mode Successive Address Reading
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HT1632C
WRITE Mode Command Code
WRITE Mode Successive Address Writing
READ-MODIFY-WRITE Mode Command Code
READ-MODIFY-WRITE Mode Successive Address Accessing
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HT1632C
Command Mode Command Code
Mode Data Command Mode
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HT1632C
Application Circuits
Power Application (Direct Drive)
example
Note: Values resistors selected depending power consumption LEDs.
example
Note: Values resistors selected depending power consumption LEDs.
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HT1632C
Middle Power Application (COM with Transistor Buffer)
example
Note: Values resistors selected depending power consumption LEDs.
example
Note: Values resistors selected depending power consumption LEDs.
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HT1632C
High Power Application (ROW with Transistor Buffer)
example
Note: Values resistors selected depending power consumption LEDs.
example
Note: Values resistors selected depending power consumption LEDs.
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HT1632C
Cascade Function
example (direct drive)
Note:
also cascade mode software. User must Master master mode Slaves slave mode with command. must connected individually independent read write. Values resistors selected depending power consumption LEDs.
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HT1632C
example (COM with transistor buffer)
Note:
also cascade mode software. User must Master master mode Slaves slave mode with command. must connected individually independent read write. Values resistors selected depending power consumption LEDs.
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HT1632C
example (direct drive)
Note:
also cascade mode software. User must Master master mode Slaves slave mode with command. must connected individually independent read write. Values resistors selected depending power consumption LEDs.
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HT1632C
example (COM with transistor buffer)
Note:
also cascade mode software. User must Master master mode Slaves slave mode with command. must connected individually independent read write. Values resistors selected depending power consumption LEDs.
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HT1632C
Cascade Control Flow
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HT1632C
Command Summary
Name READ WRITE READ-MODIFYWRITE BLINK BLINK SLAVE Mode Command Code Function Read data from Write data Read Write data Turn both system oscillator duty cycle generator Turn system oscillator Turn duty cycle generator Turn duty cycle generator Turn blinking function Turn blinking function slave mode clock source from external clock, system clock input from synchronous signal input from master mode clock source from on-chip oscillator, system clock outYes synchronous signal output master mode clock source from external clock, system clock input from synchronous signal output ab=00: N-MOS open drain output option ab=01: N-MOS open drain output option ab=10: P-MOS open drain output option ab=11: P-MOS open drain output option 1/16 duty 2/16 duty 3/16 duty 4/16 duty 5/16 duty 6/16 duty 7/16 duty 8/16 duty 9/16 duty 10/16 duty 11/16 duty 12/16 duty 13/16 duty 14/16 duty 15/16 duty 16/16 duty Def. A6A5A4A3A2A1A0D0D1D2D3 A6A5A4A3A2A1A0D0D1D2D3 A6A5A4A3A2A1A0D0D1D2D3 0000-0000-X 0000-0001-X 0000-0010-X 0000-0011-X 0000-1000-X 0000-1001-X 0001-0XXX-X
Master Mode
0001-10XX-X
Master Mode
0001-11XX-X
Option
0010-abXX-X
101X-0000-X 101X-0001-X 101X-0010-X 101X-0011-X 101X-0100-X 101X-0101-X 101X-0110-X 101X-0111-X Duty 101X-1000-X 101X-1001-X 101X-1010-X 101X-1011-X 101X-1100-X 101X-1101-X 101X-1110-X 101X-1111-X
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HT1632C
Note: care A6~A0: addresses D3~D0: data D/C: Data/command mode Def.: Power reset default bold forms, namely mode commands. Among these, indicates command mode successive commands have been issued, command mode except first command will omitted. source tone frequency time base clock frequency derived from on-chip oscillator external clock. Calculation frequency based system frequency sources stated above. recommended that host controller should initialize HT1632C after power reset, power reset fail, which turn leads malfunction HT1632C
Rev. 1.00
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HT1632C
Package Information
52-pin Outline Dimensions
Symbol
Dimensions Min. 17.3 13.9 17.3 13.9 0.73 Nom. Max. 17.5 14.1 17.5 14.1 1.03
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HT1632C
Holtek Semiconductor Inc. (Headquarters) No.3, Creation Science Park, Hsinchu, Taiwan Tel: 886-3-563-1999 Fax: 886-3-563-1189 http://www.holtek.com.tw Holtek Semiconductor Inc. (Taipei Sales Office) 4F-2, 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan Tel: 886-2-2655-7070 Fax: 886-2-2655-7373 Fax: 886-2-2655-7383 (International sales hotline) Holtek Semiconductor Inc. (Shanghai Sales Office) Room, Floor, No.1 Building, No.2016 Yi-Shan Road, Minhang District, Shanghai, China 201103 Tel: 86-21-5422-4590 Fax: 86-21-5422-4705 http://www.holtek.com.cn Holtek Semiconductor Inc. (Shenzhen Sales Office) Unit Productivity Building, Gaoxin 2nd, Middle Zone High-Tech Industrial Park, ShenZhen, China 518057 Tel: 86-755-8616-9908, 86-755-8616-9308 Fax: 86-755-8616-9722 Holtek Semiconductor Inc. (Beijing Sales Office) Suite 1721, Jinyu Tower, A129 West Xuan Street, Xicheng District, Beijing, China 100031 Tel: 86-10-6641-0030, 86-10-6641-7751, 86-10-6641-7752 Fax: 86-10-6641-0125 Holtek Semiconductor Inc. (Chengdu Sales Office) 709, Building Champagne Plaza, No.97 Dongda Street, Chengdu, Sichuan, China 610016 Tel: 86-28-6653-6590 Fax: 86-28-6653-6591 Holtek Semiconductor (USA), Inc. (North America Sales Office) 46729 Fremont Blvd., Fremont, 94538 Tel: 1-510-252-9880 Fax: 1-510-252-9885 http://www.holtek.com
Copyright 2008 HOLTEK SEMICONDUCTOR INC. information appearing this Data Sheet believed accurate time publication. However, Holtek assumes responsibility arising from specifications described. applications mentioned herein used solely purpose illustration Holtek makes warranty representation that such applications will suitable without further modification, recommends products application that present risk human life malfunction otherwise. products authorized critical components life support devices systems. Holtek reserves right alter products without prior notification. most up-to-date information, please visit site http://www.holtek.com.tw.
Rev. 1.00
November 2008

Operating voltage: 2.4V~5.5V Multiple display Integrated 256kHz oscill

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