4509 Datasheet, PDF (5/142 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

4509 Group
MULTIFUNCTION
Pin
Multifunction
P00
SIN
P01
SOUT
P02
SCK
P11
CNTR1
P12
CNTR0
P13
INT
Pin
SIN
SOUT
SCK
CNTR1
CNTR0
INT
Multifunction
P00
P01
P02
P11
P12
P13
Pin
P20
P21
P30
P31
D2
D3
Multifunction
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
Pin
AIN0
AIN1
AIN2
AIN3
AIN4
AIN5
Multifunction
P20
P21
P30
P31
D2
D3
Notes 1: Pins except above have just single function.
2: The input/output of P00 can be used even when SIN is used. Be careful when using inputs of both SIN and P00 since the input threshold value of SIN pin
is different from that of port P00.
3: The input of P01 can be used even when SOUT is used.
4: The input of P02 can be used even when SCK is used. Be careful when using inputs of both SCK and P02 since the input threshold value of SCK pin is
different from that of port P02.
5: The input of P11 can be used even when CNTR1 (output) is selected.
The input/output of P11 can be used even when CNTR1 (input) is selected. Be careful when using inputs of both CNTR1 and P11 since the input thresh-
old value of CNTR1 pin is different from that of port P11.
6: The input of P12 can be used even when CNTR0 (output) is selected.
The input/output of P12 can be used even when CNTR0 (input) is selected. Be careful when using inputs of both CNTR0 and P12 since the input thresh-
old value of CNTR0 pin is different from that of port P12.
7: The input/output of P13 can be used even when INT is used. Be careful when using inputs of both INT and P13 since the input threshold value of INT
pin is different from that of port P13.
8: The input/output of P20, P21, P30, P31, D2, D3 can be used even when AIN0–AIN5 are used.
PORT FUNCTION
Port
Pin
Port D D0, D1, D4, D5
D2/AIN4
D3/AIN5
Port P0 P00/SIN, P01/SOUT,
P02/SCK, P03
Port P1 P10, P11/CNTR1,
P12/CNT0,
P13/INT
Port P2 P20/AIN0
P21/AIN1
Port P3 P30/AIN2
P31/AIN3
Input
Output
I/O
(6)
I/O
(4)
I/O
(4)
I/O
(2)
I/O
(2)
Output structure
N-channel open-drain/
CMOS
N-channel open-drain/
CMOS
N-channel open-drain/
CMOS
N-channel open-drain/
CMOS
N-channel open-drain/
CMOS
I/O Control
Control
unit instructions registers
Remark
1 SD, RD
FR3, C1 Programmable output structure selection
SZD, CLD
function
FR3, PU2
K2
Q1
Programmable pull-up function
Programmable key-on wakeup function
Programmable output structure selection
function
4 OP0A
IAP0
FR0, PU0
K0
J1
Programmable pull-up function
Programmable key-on wakeup function
Programmable output structure selection
function
4 OP1A
IAP1
FR1, PU1
K1, L1, I1
W1, W2
W5, W6
Programmable pull-up function
Programmable key-on wakeup function
Programmable output structure selection
function
2 OP2A
IAP2
FR2, PU2
Q1
K2
Programmable pull-up function
Programmable key-on wakeup function
Programmable output structure selection
function
2 OP3A
C1
IAP3
Q1
Programmable output structure selection
functions
Rev.1.02 2006.12.22 page 5 of 140
REJ03B0147-0102