Casio SF-5300B Service Manual & Parts List

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2
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21
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14
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8
OE–
A11
A9
A8
A13
WE–
VCC
A14
A12
A7
A6
A5
A4
A3
A10
CE–
IO8
IO7
IO6
IO5
IO4
GND
IO3
IO2
IO1
A0
A1
A2
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
6-2. 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

Casio SF-5300B Specifications

General

Brand	Casio
Model	SF-5300B
Category	Organizer
Language	English