Operating voltage: 2.4V~5.5V Multiple display bits/8 commons Integrate

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Operating voltage: 2.4V~5.5V Multiple display bits/8 commons Integrate

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HT1632 Driver
Operating voltage: 2.4V~5.5V Multiple display bits/8 commons Integrated 256kHz oscillator Serial interface DATA Data mode command mode instruction Cascading function extended applications Selectable NMOS open drain output driver
bits/16 commons
Integrated display select bits
commons display RAM, select outbits commons 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
HT1632 memory mapping display controller/driver, which select number bits commons. These bits commons bits 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 HT1632. display extended cascading HT1632 wider applications.
Block Diagram
Rev. 1.20
June 2008
HT1632
Assignment
Description
Name OUTBIT0~OUTBIT23 OUTBIT24/COM15~ OUTBIT31/COM8 COM0~COM7 SYNC Description Line drivers. These pins drive LEDs. Drive output Common output Common outputs Cascade synchronization input output system clock sourced from external clock source, external clock source should connected this pad. on-chip oscillator selected, this connected high level. cascade mode selected, this driver clock signal. Serial data input output with pull-high resistor WRITE clock input with pull-high resistor Data DATA lines latched into HT1632 rising edge signal. READ clock input with pull-high resistor. HT1632 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 HT1632 disabled, serial interface circuit also reset. low, data command transmission between host controller HT1632 enabled. Negative power supply driver circuit, ground. Negative power supply logic circuit, ground. Positive power supply logic driver circuit.
DATA
LED_VSS
Rev. 1.20
June 2008
HT1632
Absolute Maximum Ratings
Supply Voltage .VSS-0.3V VSS+5.5V 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 IOL4 Parameter Operating Voltage Operating Current Standby Current Input Voltage Input High Voltage DATA DATA OSC, SYNC OSC, SYNC Common Sink Current Common Source Current Driver 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 VOL=0.5V DATA, Min. 0.7VDD Typ. -1.8 -3.6 Max. 0.3VDD -0.9 -1.8 Unit
Rev. 1.20
June 2008
HT1632
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
Rev. 1.20
June 2008
HT1632
Functional Description
Display Memory static display memory (RAM) organised into bits bits used store display data. outbits commons selected, size bits. outbits commons selected, size bits. contents directly mapped contents driver. Com7 Out0 Out1 Out2 Out3 Out4 Out5 Out6 Out7 Out8 Out9 Out10 Out11 Out12 Out13 Out14 Out15 Out16 Out17 Out18 Out19 Out20 Out21 Out22 Out23 Out24 Out25 Out26 Out27 Out28 Out29 Out30 Out31 Com6 Com5 Com4 Addr. Data 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
Outbits Common Display Rev. 1.20 June 2008
HT1632
Com15 Com14 Com13 Com12 Out0 Out1 Out2 Out3 Out4 Out5 Out6 Out7 Out8 Out9 Out10 Out11 Out12 Out13 Out14 Out15 Out16 Out17 Out18 Out19 Out20 Out21 Out22 Out23 Addr. Data Com3 Com2 Com1 Com0 Addr. Data
Outbits Common Display
Rev. 1.20
June 2008
HT1632
System Oscillator HT1632 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 HT1632 state.
illa
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
itin
System Oscillator Configuration
NMOS Open Drain Driving Mode Configuration
Driver HT1632 pattern driver. configured pattern common N-MOS open drain output P-MOS open drain output driver using configuration. This feature makes HT1632 suitable multiple applications. LED-driving clock derived from system clock. driving clock frequency always 256kHz, on-chip oscillator freq corresponding commands summarized table. bold form 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.
Color Green
Current-limiting Resistor 120W VDD=5V 100W VDD=5V
Recommended Current-limiting Resistor NMOS Open Drain Driving Mode
itin
PMOS Open Drain Driving Mode Configuration
Rev. 1.20
June 2008
HT1632
Blinker HT1632 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 setting configure HT1632. There mode commands configure HT1632 resources transfer display data. configuration mode HT1632 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. following data mode command mode Operation READ WRITE READ-MODIFY-WRITE COMMAND Mode Data Data Data Command 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. Interfacing Only four lines required interface HT1632. line used initialise serial interface circuit terminate communication between host controller HT1632. data command issued between host controller HT1632 first disabled then initialised. Before issuing mode command mode switching, high level pulse required initialise serial interface HT1632. 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.
Example Waveform Blinker
Rev. 1.20
June 2008
HT1632
Timing Diagrams
READ Mode Command Code
READ Mode Successive Address Reading
WRITE Mode Command Code
WRITE Mode Successive Address Writing
Rev. 1.20
June 2008
HT1632
READ-MODIFY-WRITE Mode Command Code
READ-MODIFY-WRITE Mode Successive Address Accessing
Command Mode Command Code
Mode Data Command Mode
Rev. 1.20
June 2008
HT1632
Application Circuits
Single Connect Example Outbits Commons (NMOS)
Note: Common outbit NMOS open drain output structures only supply sink current.
Rev. 1.20
June 2008
HT1632
Single Connect Example Outbits Commons (NMOS)
Note: Common outbit NMOS open drain output structures only supply sink current.
Rev. 1.20
June 2008
HT1632
Single Connect Example Outbits Commons (PMOS)
Note:
Outbit NMOS open drain output structures only supply sink current, common PMOS open drain output structures only supply source current. P-MOS open drain structure used commons, brightness LEDs enough uniformity LEDs good. user cares about brightness uniformity LEDs, N-MOS open drain structure suggested being used commons.
Rev. 1.20
June 2008
HT1632
Single Connect Example Outbits Commons (PMOS)
Note:
Outbit NMOS open drain output structures only supply sink current, common PMOS open drain output structures only supply source current. P-MOS open drain structure used commons, brightness LEDs enough uniformity LEDs good. user cares about brightness uniformity LEDs, N-MOS open drain structure suggested being used commons.
Rev. 1.20
June 2008
HT1632
Cascade Connect Example Outbits Commons
Note:
also cascade mode software. User must Slaves external clock mode with command. must connected individually independent read-write.
Rev. 1.20
June 2008
HT1632
Cascade Connect Example Outbits Commons
Note:
also cascade mode software. User must Slaves external clock mode with command. must connected individually independent read-write.
Rev. 1.20
June 2008
HT1632
Cascade Control Flow
Rev. 1.20
June 2008
HT1632
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 master mode clock source on-chip oscillator, system clock output System clock source, on-chip oscillator System clock source, external clock source ab=00: N-MOS open drain output common option ab=01: N-MOS open drain output common option ab=10: P-MOS open drain output common option ab=11: P-MOS open drain output common 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 0001-00XX-X
MASTER MODE
0001-01XX-X 0001-10XX-X 0001-11XX-X
COMMONS 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 Duty 101X-0111-X 101X-1000-X 101X-1001-X 101X-1010-X 101X-1011-X 101X-1100-X 101X-1101-X 101X-1110-X 101X-1111-X
Rev. 1.20
June 2008
HT1632
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
Rev. 1.20
June 2008
HT1632
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) Floor, Building No.889, Shan Rd., Shanghai, China 200233 Tel: 86-21-6485-5560 Fax: 86-21-6485-0313 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. 1.20
June 2008

Operating voltage: 2.4V~5.5V Multiple display bits/8 commons Integrate

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