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HD404318 Datasheet, PDF (7/68 Pages) Hitachi Semiconductor – 4-bit HMCS400-series microcomputer
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HD404318 Series
Pin Description in PROM Mode
The HD4074318 is a PROM version of a ZTAT™ microcomputer. In PROM mode, the MCU stops
operating, thus allowing the user to program the on-chip PROM.
Pin Number
DP-42S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
FP-44A
39
40
41
42
43
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
23
24
25
26
MCU Mode
Pin
I/O
RA 1/V disp
I
R00/SCK
I/O
R01/SI
I/O
R02/SO
I/O
R03/TOC
I/O
TEST
I
RESET
I
OSC1
I
OSC2
O
GND
AVSS
R30/AN0
I/O
R31/AN1
I/O
R32/AN2
I/O
R33/AN3
I/O
R40/AN4
I/O
R41/AN5
I/O
R42/AN6
I/O
R43/AN7
I/O
AVCC
VCC
D0/INT0
I/O
D1/INT1
I/O
D2/EVNB
I/O
D3/BUZZ
I/O
D4/STOPC
I/O
D5
I/O
D6
I/O
D7
I/O
D8
I/O
PROM Mode
Pin
I/O
VCC
VCC
VPP
RESET
I
VCC
GND
GND
O0
I/O
O1
I/O
O2
I/O
O3
I/O
O4
I/O
O5
I/O
O6
I/O
O7
I/O
VCC
VCC
M0
I
M1
I
A1
I
A2
I
A3
I
A4
I
A9
I
VCC
5
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