![](http://datasheet.mmic.net.cn/370000/UPD75008_datasheet_16740754/UPD75008_11.png)
μ
PD75004, 75006, 75008
11
TI0
PTO0
PCL
BUZ
SCK
SO/SB0
SI/SB1
INT4
INT0
INT1
INT2
KR0-KR3
KR4-KR7
P13
P20
P22
P23
P01
P02
P03
P00
P10
P11
P12
P60-P63
P70-P73
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
B -C
E-B
E-B
E-B
F -A
F -B
M -C
B
B -C
B -C
F -A
F -A
Pin Name Input/Output
Also Served
As
Functon
When Reset
Input/
Output
Circuit
TYPE*
1
3.2
NON PORT PINS
Timer/event counter external event pulse Input
Timer/event counter output
Clock output
Fixed frequency output (for buzzer or for trim-
ming the system clock)
Serial clock input/output
Serial data output
Serial bus input/output
Serial data input
Serial bus input/output
Edge detection vector interrupt input (both
rising and falling edge detection are effective)
Edge detection vector
interrupt input (detection
edge can be selected)
Edge detection testable
input (rising edge detection)
Clock synchronous
Asynchronous
Asynchronous
X1, X2
RESET
NC *
2
V
DD
V
SS
Input
—
Input
—
—
—
—
—
—
—
B
—
—
—
—
—
—
—
Input
—
—
*1: Circles indicate Schmitt trigger inputs.
2: When sharing the printed circut board with the
μ
PD75P008, the NC pin must be directly
connected to V
DD
.
Input
Input/
Output
Input/
Output
Input/
Output
Input/
Output
Input/
Output
Input/
Output
Input
Input
Input
Input/
Output
Input/
Output
XT1
XT2
—
Input
—
Input
—
Parallel falling edge detection testable input
Parallel falling edge detection testable input
To connect the crystal/ceramic oscillator to the
main system clock generator. When inputting the
external clock, input the external clock to pin X1,
and the reverse phase of the external clock to pin
X2.
To connect the crystal oscillator to the subsystem
clock generator.
When the external clock is used, pin XT1 inputs
the external clock. In this case, pin XT2 must be
left open.
System reset input
No connection
Positive power supply
GND