Casio QT-2100 Service Manual

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11. IC DATA
1. COM20019ILJP (IC14)
ADDRESS
DECORDING
CIRCUITRY
2K✕8
RAM
ADDITIONAL
REGISTERS
MICRO-
SEQUENCER
AND
WORKING
REGISTERS
OSCILLATOR
STATUS/
COMMAND
REGISTER
RESET
LOGIC
BUS
ARBITRATION
CIRCUITRY
RECONFIGURATION
TIMER
NODE ID
LOGIC
TX/RX
LOGIC
A0/nMUX
A1
A2/ALE
AD0-AD2,
D3-D7
nINTR
nRESET
nRD/nWR
nWR/DIR
nCS
nPULSE1
nPULSE2
nTXEN
RXIN
XTAL1
XTAL2
nWR/DIR
nPULSE1
nRD/nDS
VDD
A0/nMUX
A1
A2/ALE
AD0
AD1
AD2
VSS
D3 D4 D5
D6
nCS nINTR
nRESET
VSS
nTXEN
RXIN nPULSE2
XTAL2
XTAL1
VSS
VDD
N/C
D7
1
2
3
4
5
6
98710
11
19
18
17
16
15
14
13
12
2022 212324
25
26
27
28

Casio QT-2100 Specifications

General

Brand	Casio
Model	QT-2100
Category	Cash Register
Language	English