參數(shù)資料
型號(hào)： UPD753108
廠商： NEC Corp.
元件分類： 4位微控制器
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述： 4位單片機(jī)的小型通用紅外遙控器
文件頁(yè)數(shù)： 11/90頁(yè)
文件大?。?/td> 547K
代理商： UPD753108
11
μ
PD753104, 753106, 753108
3.2 Non-port Pins (1/2)
Pin Name
Input/Output
Alternate
Function
Function
After Reset
I/O Circuit
TYPE
Note 1
TI0
Input
P13
Inputs external event pulses to the timer/event
counter.
Input
(B)-C
TI1
P12/INT2/TI2
TI2
P12/INT2/TI1
PTO0
Output
P20
Timer/event counter output
Input
E-B
PTO1
P21
PTO2
P22/PCL
PCL
P22/PTO2
Clock output
BUZ
P23
Optional frequency output (for buzzer output or
system clock trimming)
SCK
Input/Output
P01
Serial clock input/output
Input
(F)-A
SO/SB0
P02
Serial data output
Serial data bus input/output
(F)-B
SI/SB1
P03
Serial data input
Serial data bus input/output
(M)-C
INT4
Input
P00
Edge detection vectored interrupt input (both
rising edge and falling edge detection)
Input
(B)
INT0
Input
P10
Input
(B)-C
INT1
P11
INT2
P12/TI1/TI2
KR0-KR3
Input
P60-P63
Falling edge detection testable input
Input
(F)-A
S0-S15
Output
–
Segment signal output
Note 2
G-A
S16-S19
Output
P93-P90
Segment signal output
Input
H
S20-S23
Output
P83-P80
Segment signal output
Input
H
COM0-COM3
Output
–
Common signal output
Note 2
G-B
V
LC0
-V
LC2
–
–
LCD drive power
On-chip split resistor is enabled (mask option).
–
–
BIAS
Output
–
Output for external split resistor disconnect
Note 3
–
LCDCL
Note 4
Output
P30
Clock output for externally expanded driver
Input
E-B
SYNC
Note 4
Output
P31
Clock output for externally expanded driver
synchronization
Input
E-B
Notes 1.
Characters in parentheses indicate the Schmitt trigger input.
Each display output selects the following V
LCX
as input source.
S0-S15: V
LC1
, COM0-COM2: V
LC2
, COM3: V
LC0
When a split resistor is contained ........Low level
When no split resistor is contained ......High-impedance
These pins are provided for future system expansion.
At present, these pins are used only as pins P30 and P31.
2.
3.
4.
Edge detection vectored
interrupt input (detection
edge can be selected).
INT0/P10 can select noise
elimination circuit.
Rising edge detection
testable input
Noise elimination circuit/
asynchronous selection
Asynchronous
Asynchronous
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