UPD8748 microcomputers equivalent, single chip 8-bit microcomputers.
of the J,LPD8048 except the 1024 x 8-bit internal ROM. The external program memory can be implemented using standard 8080A/8085A memory products.
FUNCTIONAL DESCRIPTION
.
The flexibility of the instruction set allows for the direct set and reset of individual data bits within the accumulat.
BLOCK DIAGRAM
334
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PIN IDENTIFICATION
PIN
NO.
SYMBOL
1
TO
2
XTALI
3
XTAL2
4
RESET
5
SS
6
INT
7
EA
8
RD
9
PSEN
10
WR
11
ALE
12 - 19 DO - D7 BUS
20
21- 24, 35-38
VSS
P20 - P27: PORT .
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