MDT10C23 Datasheet, PDF (13/19 Pages) List of Unclassifed Manufacturers – Fully CMOS static design, 8-bit data bus,On chip ROM size : 2 K words

12. Port A Equivalent Circuit
PA0-PA3
MDT10C23
I/O
Control
D
Q
I/O
Control
Latch
C
Q
K
B
Write
D
Data O/P
Latch
G
QB
Data
Bus
Rea
d
Compartor Control
QB
D
Data I/P
Latch
G
0
S
1
TTL input level
+
-
comparator level
Port I/O
Pin
Input Resistor
VREF
PA4
I/O
Control
D
Q
I/O
Control
Latch
C
Q
K
B
Write
D
Data O/P
Latch
Q
G
B
Data
Bus
Rea
d
QB
D
Data I/P
Latch
G
Input Resistor
TTL Input Level
Vref
CMR_4
CMR_5
3
2
1
S0 S1 ⁰
Port I/O
Pin
comparator
enable
3/4
VDD
1/2
VDD
1/4
VDD
This specification are subject to be changed without notice. Any latest information
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P. 13
2004/7 Ver. 1.1