4518 Datasheet, PDF (7/160 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4518 Group
PORT FUNCTION
Port
Pin
Port D
Port P0
D0–D5
D6/CNTR0
D7/CNTR1
P00–P03
Port P1 P10–P13
Port P2
Port P3
P20/SCK, P21/SOUT
P22/SIN
P30/INT0, P31/INT1
Port P6 P60/AIN0–P63/AIN3
Input
Output
I/O
(8)
Output structure
N-channel open-drain/
CMOS
I/O N-channel open-drain/
(4) CMOS
I/O N-channel open-drain/
(4) CMOS
I/O N-channel open-drain
(3)
I/O N-channel open-drain
(2)
I/O N-channel open-drain
(4)
I/O
Control
Control
unit instructions registers
Remark
1 SD, RD
FR1, FR2 Output structure selection
SZD
W6
function (programmable)
CLD
W4
4 OP0A
FR0
Built-in programmable pull-up
IAP0
PU0
functions, key-on wakeup
K0, K1 functions and output structure
selection functions
4 OP1A
FR0
Built-in programmable pull-up
IAP1
PU1
functions, key-on wakeup
K0
functions and output structure
selection functions
3 OP2A
J1
IAP2
2 OP3A
I1, I2
IAP3
K2
4 OP6A
Q2
IAP6
Q1
Rev.3.01 2005.06.15 page 7 of 157
REJ03B0008-0301