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Generalplus

GPLB34A3 Datasheet Preview

GPLB34A3 Datasheet

LCD Controller

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GPLB34A3
2368 Dots LCD Controller with
1MB Rom
AUG. 18, 2010
Version 1.6
GENERALPLUS TECHNOLOGY INC. reserves the right to change this documentation without prior notice. Information provided by GENERALPLUS
TECHNOLOGY INC. is believed to be accurate and reliable. However, GENERALPLUS TECHNOLOGY INC. makes no warranty for any errors which may
appear in this document. Contact GENERALPLUS TECHNOLOGY INC. to obtain the latest version of device specifications before placing your order. No
responsibility is assumed by GENERALPLUS TECHNOLOGY INC. for any infringement of patent or other rights of third parties which may result from its use.
In addition, GENERALPLUS products are not authorized for use as critical components in life support devices/systems or aviation devices/systems, where a
malfunction or failure of the product may reasonably be expected to result in significant injury to the user, without the express written approval of Generalplus.




Generalplus

GPLB34A3 Datasheet Preview

GPLB34A3 Datasheet

LCD Controller

No Preview Available !

GPLB34A3
Table of Contents
PAGE
1. GENERAL DESCRIPTION .......................................................................................................................................................................... 4
2. BLOCK DIAGRAM ...................................................................................................................................................................................... 4
3. FEATURES.................................................................................................................................................................................................. 4
4. APPICATION FIELD.................................................................................................................................................................................... 5
5. SIGNAL DESCRIPTIONS............................................................................................................................................................................ 5
5.1. PAD ASSIGNMENT ................................................................................................................................................................................. 6
6. FUNCTIONAL DESCRIPTIONS.................................................................................................................................................................. 7
6.1. MEMORY ............................................................................................................................................................................................... 7
6.2. MAP OF MEMORY AND I/OS .................................................................................................................................................................... 7
6.3. OPERATING STATES ............................................................................................................................................................................... 7
6.3.1. Operating Mode ........................................................................................................................................................................ 7
6.3.2. Standby Mode ........................................................................................................................................................................... 7
6.3.3. Halt Mode.................................................................................................................................................................................. 7
6.4. SPEECH AND MELODY............................................................................................................................................................................ 8
6.5. LCD CONTROLLER/DRIVER.................................................................................................................................................................... 8
6.6. LCD VOLTAGE GENERATION................................................................................................................................................................... 8
6.7. PWM OUTPUT....................................................................................................................................................................................... 8
6.8. SERIAL SRAM INTERFACE ..................................................................................................................................................................... 8
6.8.1. Read/Write Timing .................................................................................................................................................................... 8
6.8.2. Continuous Read/Write Timing ................................................................................................................................................. 8
6.9. BUS MEMORY INTERFACE....................................................................................................................................................................... 9
6.10.VOLTAGE REGULATOR............................................................................................................................................................................ 9
6.11. ASYNCHRONOUS SERIAL INTERFACE ...................................................................................................................................................... 9
6.12.LOW VOLTAGE DETECTION ..................................................................................................................................................................... 9
6.13.WATCHDOG TIMER (WDT) ..................................................................................................................................................................... 9
6.14.MASK OPTIONS.................................................................................................................................................................................... 10
6.14.1. 32768 Oscillator.................................................................................................................................................................. 10
6.14.2. Watchdog Timer ................................................................................................................................................................. 10
6.14.3. Voltage Regulator for External Memory Devices................................................................................................................ 10
6.14.4. Regulator Output Voltage Selection ................................................................................................................................... 10
7. ELECTRICAL SPECIFICATIONS ............................................................................................................................................................. 11
7.1. ABSOLUTE MAXIMUM RATINGS ..............................................................................................................................................................11
7.2. DC CHARACTERISTICS..........................................................................................................................................................................11
7.3. POWER AND GROUND PADS BONDING ...................................................................................................................................................11
7.4. THE RELATIONSHIP BETWEEN THE ROSC AND THE FOSC........................................................................................................................... 12
7.4.1. VDD = 3.0V, TA = 25............................................................................................................................................................ 12
7.4.2. VDD = 4.5V, TA = 25............................................................................................................................................................ 12
7.5. THE RELATIONSHIP BETWEEN THE F32K AND THE R32K........................................................................................................................ 12
7.6. THE RELATIONSHIP BETWEEN THE FCPU AND THE IOP .............................................................................................................................. 12
8. APPLICATION CIRCUITS ......................................................................................................................................................................... 13
8.1. 2368 DOTS LCD DRIVER, 74 SEGMENTS × 32 COMMONS WITH EXTERNAL SERIAL SRAM, REGULATOR DISABLED - (1) .......................... 13
8.2. 2368 DOTS LCD DRIVER, 74 SEGMENTS × 32 COMMONS WITH BUS EXTENDER, REGULATOR DISABLED - (2) ......................................... 14
© Generalplus Technology Inc.
Proprietary & Confidential
2
AUG. 18, 2010
Version: 1.6


Part Number GPLB34A3
Description LCD Controller
Maker Generalplus
Total Page 18 Pages
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