4524 Datasheet, PDF (7/161 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4524 Group
PORT FUNCTION
Port
Pin
Port D
D0–D3, D4/SIN,
D5/SOUT, D6/SCK,
D7/CNTR0
D8/INT0, D9/INT1
Port P0 P00–P03
Port P1 P10–P13
Port P2 P20/AIN0–P23/AIN3
Port P3 P30/AIN4–P33/AIN7
Port P4 P40–P43
Port C C/CNTR1
Input
Output
I/O
(8)
Output structure
N-channel open-drain/
CMOS
Output
(2)
I/O
(4)
N-channel open-drain
N-channel open-drain/
CMOS
I/O N-channel open-drain/
(4) CMOS
I/O
(4)
I/O
(4)
I/O
(4)
Output
(1)
N-channel open-drain
N-channel open-drain
N-channel open-drain/
CMOS
CMOS
I/O
Control
Control
unit instructions registers
Remark
1 SD, RD
FR1, FR2 Output structure selection
SZD
J1
function (programmable)
CLD
W6
I1, I2
Key-on wakeup function
K2
(programmable)
4 OP0A
FR0
Built-in programmable pull-up
IAP0
PU0
functions and key-on wakeup
K0
functions (programmable)
4 OP1A
FR0
Built-in programmable pull-up
IAP1
PU1
functions and key-on wakeup
K1
functions (programmable)
4 OP2A
Q2
IAP2
4 OP3A
Q3
IAP3
4 OP4A
FR3
Output structure selection
IAP4
function (programmable)
1 RCP
W4
SCP
Rev.2.00 Jul 27, 2004 page 7 of 159
REJ03B0091-0200Z