UPD16498W datasheet(4/95 Pages) NEC

Part #	UPD16498W

Description	1/128 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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Data Sheet S15730EJ2V0DS

4

µµµµPD16498

8. POWER SUPPLY SEQUENCE ................................................................................................................ 76

8.1 Power ON Sequence (When Using On-Chip Power Supply, Power Supply ON ¡

¡

¡ Display ON) ................ 76

8.2 Power OFF Sequence (When Using On-Chip Power Supply) ...................................................................... 77

8.3 Power ON Sequence (When Using External Driver Power Supply, Power ON

→

→ Display ON) ................. 77

8.4 Power Supply OFF Sequence (When Using External Driver Power Supply) .............................................. 78

8.5 VOUT, VLCD Voltage Sequence (Power ON

→

→ Power OFF) .............................................................................. 79

9. USE OF RAM TEST MODE ..................................................................................................................... 80

10. USE OF STANDBY/HALT MODE ......................................................................................................... 81

11. ELECTRICAL SPECIFICATIONS .......................................................................................................... 82

12. CPU INTERFACE (REFERENCE EXAMPLE) ...................................................................................... 91

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