參數(shù)資料
型號(hào)： UPD75104A
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCOMPUTER
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 9/66頁(yè)
文件大?。?/td> 460K
代理商： UPD75104A
μ
PD75104A, 75108A
9
3.2
PINS OTHER THAN PORTS
I/O
Pin Name
I/O
Shared with:
Function
At Reset
Circuit
Type*
1
PTH00-PTH03
Input
—
4-bit variable threshold voltage analog input port
—
N
TI0
External event pulse inputs for timer/event counter.
Input
—
Also serves as edge-detected vector interrupt input.
—
B
TI1
1-bit input also possible.
PTO0
P20
I/O
Outputs for timer/event counter
Input
E
PTO1
P21
SCK
I/O
P01
Serial clock I/O
Input
F
SO
I/O
P02
Serial data output
Input
E
SI
Input
P03
Serial data input
Input
B
Edge-detected vectored interrupt input (both rising and
INT4
Input
P00
Input
B
falling edges detected)
INT0
P10
Edge-detected vectored interrupt inputs (valid
Input
Input*
2
B -A
INT1
P11
edge selectable)
INT2
P12
Input
Edge-detected testable inputs (rising edge detected)
Input*
2
B -A
INT3
P13
PCL
I/O
P22
Clock output
Input
E
Crystal/ceramic system clock oscillator connections.
X1, X2
—
—
Input external clock to X1, and signal in reverse phase
—
—
with X1 to X2.
RESET
Input
—
System reset input (low level active type)
—
B
NC
—
—
No Connection
—
—
V
DD
—
—
Positive power supply
—
—
V
SS
—
—
GND
—
—
*1: Circles indicate Schmitt trigger input pins.
2: With pull-up resistor connected: high level
Without pull-up resistor connected: high impedance
相關(guān)PDF資料
PDF描述
UPD75104AGC 4-BIT SINGLE-CHIP MICROCOMPUTER
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UPD75104 4-BIT SINGLE-CHIP MICROCOMPUTER
UPD75104CW 4-BIT SINGLE-CHIP MICROCOMPUTER
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