upd7566a Renesas Electronics Corporation., upd7566a Datasheet - Page 6

• Manufacturer Part Number: upd7566a
• Description: 4-bit Single-chip Microcomputer
• Manufacturer: Renesas Electronics Corporation.

6
1.
1.1
1.2
P00
P01
P10-P13
P80-P82
P90, P91
P100 -
P103
P110-
P113
Cin0-Cin3
RESET
Name
Name
INT0
Vref
PIN FUNCTIONS
CL1
CL2
V
Pin
Pin
V
PORT FUNCTIONS
OTHER FUNCTIONS
DD
SS
Output
Output
Output
Output
Output
Output
Input/
Input/
Input/
Input
Input
Input
Input
Input
Input
P10-P13 pins are used as digital input pins (P10 to P13)
Shared
Shared
Cin0 -
with:
with:
INT0
Cin3
Vref
P00
P01
-
-
-
-
2-bit input port (PORT 0). P00 is also used to
input count clocks (event pulses).
4-bit input port (PORT 1)
3-bit output port (PORT 8). High-current
(15 mA), and medium-voltage (9V) output
2-bit output port (PORT 9). High-current
(15 mA), and medium-voltage (9V) output
4-bit I/O port (PORT 10). Medium-current
(10 mA), and medium-voltage (9V) I/O
4-bit I/O port (PORT 11). Medium-current
(10 mA), and medium-voltage (9V) I/O
Edge-detecting testable input pin (rising edge)
Comparator reference voltage input pin
(Whether this pin is used as P01 or as Vref is
specified by a mask option.)
4-bit comparator input pins (Whether these
or as comparator input pins (Cin0 to Cin3) is
specified by the mask option for each bit.
A ceramic oscillator is connected across
these pins.
System reset input pin (high-level active).
A pull-down resistor can be interconnected
to this pin by a mask option.
Power pin
GND pin
Function
Function
PD7566A, 7566A(A)
impedance
impedance
At Reset
At Reset
or high-
output
Input
Input
Input
Input
Input
High
High
level
Circuit
Circuit
Type
Type
I/O
I/O
U
O
S
U
R
S
T
P
T