Casio SF-6300 User Manual download pdf (Page 11)

— 9 —

OE–

A11

A13

WE–

VCC

A14

A12

A10

CE–

IO8

IO7

IO6

IO5

IO4

GND

IO3

IO2

IO1

CXK58257ATM

(LSI 2)

Pin No. Name I/O Description

64,65 OSC I/O I/O Clock terminal

67,69~71 V1 ~ 4 Voltage for LCD drive

OFF: 0 V ON–V1: 0.64 Minimum ~ 1.29 Maximum V

V2: 1.29 Minimum ~ 2.56 Maximum V

V3: 3.99 Minimum ~ 2.71 Maximum V

V4: 4.64 Minimum ~ 3.99 Maximum V

68 NC - Not used

72 INTO In Low battery detection INTO < 5.2 V => No power on

73 STNT - GND 0 V

74 VLCD In Power supply terminal (+5.3 V)

S0 ~ 95 Out Segment signal for display

C5 ~ 32 Out Common signal for display

168,200 NC - Not used

RAM: LSI2 and LSI3 (CXK58257)

Pin No. Name I/O Description

1~10,21,23~26 A0 ~ 14 In Address bus

11~13,15~19 IO1 ~ IO8 I/O Data bus

14 GND In GND 0 V

20 CE In Chip select signal from LSI1

22 OE In 0 V

27 WE In Write enable signal from LSI1

28 VCC In Power supply terminal (+ 5.3 V)

172 ~199

75 ~ 171

1 ... 10 11 12 ... 26

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Casio SF-6300 User Manual Page 11

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