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CXD1095Q (1/3) IL08D
C-MOS I/O PORT EXPANDER
--TOP VIEW--
51 50 49 48 47 46 45 44 43 GND 42 41 40 39 38 37 36 35 34 33
52 53 54 55 56 57 GND 58 VDD 59 60 61 62 63
32 31 30 29 28 27 VDD 26 GND 25 24 23 22 21
10 GND
64
1 2 3 4 5 6 7 8 9
20
11 12 13 14 15 16 17 18 19
PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
I/O -- -- I/O I/O I/O I/O I/O I/O I/O -- I/O I/O I/O I/O I/O I/O
SIGNAL NC NC PB1 PB2 PB3 PB4 PB5 PB6 PB7 GND PC0 PC1 PC2 PC3 PC4 PC5
PIN No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
I/O I/O I/O -- I/O I/O I/O I/O I/O -- -- I/O I/O I/O I/O I/O I/O
SIGNAL PC6 PC7 NC PD0 PD1 PD2 PD3 PD4 GND VDD PD5 PD6 PD7 D0 D1 D2
PIN No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
I/O -- -- I/O I/O I/O I/O I/O I I -- I I I I I I
SIGNAL NC NC D3 D4 D5 D6 D7
CLR RST
GND
WR RD CS
A0 A1 A2
PIN No. 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
I/O I/O I/O -- I/O I/O I/O I/O I/O -- -- I/O I/O I/O I/O I/O I/O
SIGNAL PX0 PX1 NC PX2 PX3 PA0 PA1 PA2 GND VDD PA3 PA4 PA5 PA6 PA7 PB0
CXD1095Q (2/3) CS RD WR A2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 X HI-Z ; ; ; ; 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 X 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 X 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 X A1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 X A0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 X DATA BUS CTL REG. 1 DATA BUS CTL REG. 2 DATA BUS ; HI-Z DATA BUS PORT A DATA BUS PORT B DATA BUS PORT C DATA BUS PORT D DATA BUS PORT X MODE PORT A DATA BUS PORT B DATA BUS PORT C DATA BUS PORT D DATA BUS PORT X DATA BUS
LOW LEVEL HIGH LEVEL DON'T CARE HIGH IMPEDANCE
D0 - D7 CS RD WR A0 - A2 RST CLR PA0 - PA7 PB0 - PB7 PC0 - PC7 PD0 - PD7 PX0 - PX3
; ; ; ; ; ; ; ; ; ; ; ;
DATA BUS INPUTS/OUTPUTS CHIP SELECT INPUT READ STROBE INPUT WRITE STROBE INPUT ADDRESS INPUT RESET INPUT CLEAR INPUT PORT A INPUTS/OUTPUTS PORT B INPUTS/OUTPUTS PORT C INPUTS/OUTPUTS PORT D INPUTS/OUTPUTS PORT X INPUTS/OUTPUTS
CXD1095Q (3/3)
30 - 32, D0 - D7 35 - 39 8 (DATA BUS) 8 8
LATCH
54-56, 8 59-63 PA0 - PA7 (PORT A) 8
8
LATCH
3 - 9, 8 64 PB0 - PB7 (PORT B) 8
8
LATCH
8 11 - 18 PC0 - PC7 (PORT C) 8 8
LATCH
20 - 24, 8 27 - 29 PD0 - PD7 (PORT D) 4
4
LATCH
40
49, 50, 4 52, 53 PX0 - PX3 (PORT X)
CLR
DATA SELECT
A2 A1 A0 WR RD CS RST
48 47 46 43 44 45 41
CONTROL

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