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HD404344R Datasheet, PDF (81/102 Pages) Renesas Technology Corp – 4-bit microcomputer has an A/D converter
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HD404344R Series/HD404394 Series
Pin Description in PROM Mode
The HD4074344 and the HD4074394 are PROM versions of a ZTAT™ microcomputer. In PROM mode,
the MCU stops operating, thus allowing the user to program the on-chip PROM.
Pin Number
MCU Mode
PROM Mode
DP-28S/FP-28DA FP-30D Pin
I/O
Pin
I/O
Remarks
1
1
R10
I/O
A5
I
2
2
R11
I/O
A6
I
3
3
R12
I/O
A7
I
4
4
R13
I/O
A8
I
5
5
R20
I/O
A9
I
6
6
R21
I/O
A10
I
7
7
R22
I/O
A11
I
8
8
R23
I/O
A12
I
9
9
OSC1
I
OE
I
10
10
OSC2
O
11
11
GND
GND
12
NC
12
13
R30/AN0 or Vref
I/O or Vref
2
13
14
R31/AN1
I/O
M0
I
14
15
R32/AN2
I/O
XON
I
15
16
R33/AN3
I/O
O0
I/O
17
NC
16
18
VCC
VCC
17
19
TEST
I
VPP
I
18
20
RESET
I
RESET
I
19
21
R00/SCK
I/O
O1
I/O
20
22
R01/SI
I/O
O2
I/O
21
23
R02/SO
I/O
O3
I/O
22
24
R03/TOC
I/O
O4
I/O
23
25
D0/INT0/EVNB
I/O
A0
I
24
26
D1
I/O
A1
I
25
27
D2
I/O
A2
I
26
28
D3
I/O
A3
I
27
29
D4/STOPC
I/O
CE
I
28
30
D5
I/O
A4
I
Notes: 1. I/O: Input/output pin, I: Input pin, O: Output pin
2. R30/AN0 is for the HD404344R series and Vref for the HD404394 series in MCU mode.
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