GPLB38C

© Generalplus Technology Inc.

Proprietary & Confidential

2

Jun. 26, 2017

Version: 1.5

Table of Contents

PAGE

1024 DOTS LCD CONTROLLER ................................................................................................................................................................. 4

WITH 512KB ROM ....................................................................................................................................................................................... 4

1. GENERAL DESCRIPTION...................................................................................................................................................................... 4

2. FEATURES ............................................................................................................................................................................................. 4

3. BLOCK DIAGRAM.................................................................................................................................................................................. 4

4. APPLICATION FIELD ............................................................................................................................................................................. 4

5. SIGNAL DESCRIPTIONS ....................................................................................................................................................................... 5

5.1. PAD ASSIGNMENT ............................................................................................................................................................................. 6

6. FUNCTIONAL DESCRIPTIONS .............................................................................................................................................................. 7

6.1. MEMORIES........................................................................................................................................................................................ 7

6.2. MAP OF MEMORY AND I/OS ................................................................................................................................................................ 7

6.3. OPERATION MODES ........................................................................................................................................................................... 7

6.4. OPERATING MODE ............................................................................................................................................................................. 7

6.5. STANDBY MODE ................................................................................................................................................................................ 7

6.6. HALT MODE ...................................................................................................................................................................................... 7

6.7. SPEECH AND MELODY........................................................................................................................................................................ 8

6.8. LCD CONTROLLER/DRIVER ................................................................................................................................................................ 8

6.9. LCD VOLTAGE GENERATION............................................................................................................................................................... 8

6.10.AUDIO OUTPUT ................................................................................................................................................................................. 8

6.11. LOW VOLTAGE DETECTION ................................................................................................................................................................. 8

6.12.KEY SCAN FUNCTION......................................................................................................................................................................... 8

6.13.WATCHDOG TIMER (WDT) ................................................................................................................................................................. 8

6.14.MASK OPTIONS ................................................................................................................................................................................. 8

6.14.1.

32768Hz oscillator ............................................................................................................................................................ 8

6.14.2.

Watchdog timer................................................................................................................................................................. 8

6.14.3.

Internal oscillator frequency .............................................................................................................................................. 8

7. ELECTRICAL SPECIFICATIONS............................................................................................................................................................ 9

7.1. ABSOLUTE MAXIMUM RATINGS ........................................................................................................................................................... 9

7.2. DC CHARACTERISTICS (VDD=3.0V, FOR 2-BATTERY APPLICATION, INTERNAL REGULATOR DISABLE, TA =25℃)......................................... 9

7.3. DC CHARACTERISTICS (VDD=4.5V, FOR 3-BATTERY APPLICATION, INTERNAL REGULATOR ENABLE, TA =25℃).......................................... 9

7.4. THE RELATIONSHIPS BETWEEN THE F

OSC

4M AND THE VDD ................................................................................................................... 10

7.5. THE RELATIONSHIPS BETWEEN THE F

OSC

8M AND THE VDD ................................................................................................................... 10

7.6. THE RELATIONSHIPS BETWEEN THE F

OSC

32K AND THE VDD ................................................................................................................... 10

7.7. THE RELATIONSHIPS BETWEEN THE FCPU AND THE IOP ........................................................................................................................ 10

8. APPLICATION CIRCUITS ..................................................................................................................................................................... 11

8.1. 1024 DOTS LCD DRIVER, 64 SEGMENTS × 16 COMMONS, 2-BATTERY APPLICATION, INTERNAL REGULATOR DISABLED, XTAL 32K SELECTED

- (1) 11

8.2. 1024 DOTS LCD DRIVER, 64 SEGMENTS × 16 COMMONS, 3-BATTERY APPLICATION, INTERNAL REGULATOR ENABLED, ROSC32K SELECTED

(2)

12

9. PACKAGE INFORMATION ................................................................................................................................................................... 13

9.1. ORDERING INFORMATION ................................................................................................................................................................. 13