參數(shù)資料
型號(hào): W921E400
廠商: WINBOND ELECTRONICS CORP
英文描述: 4-Bit Microcontroller(4位微控制器)
中文描述: 4位微控制器(4位微控制器)
文件頁(yè)數(shù): 6/53頁(yè)
文件大?。?/td> 394K
代理商: W921E400
W921E400A/W921C400
- 6 -
4. PIN DESCRIPTION
SYMBOL
I/O
FUNCTION
OSCI
I
Main oscillator input pin with internal capacitor
OSCO
P2.0 to P2.1
O
Main oscillator output pin
I/O
1
I/O port 2 with large sink current
P3.0/ANI0 to
P3.3/ANI3
I/O
I/O port 3 or analog input (ANI0 to ANI3) pins
P4.2
I/O
&
I/O pin P4.2 or the input pin of interrupt port
P4.3/INT0
I/O
&
I/O pin P4.3 or INT0 input pin
P5.1/TM2
I/O
I/O pin P5.1 or the controlled pin of timer2
P6.0/WDATA
I/O
&
I/O pin P6.0 or the data output pin of serial interface
P6.1/WCLK
I/O
&
I/O pin P6.1 or the clock I/O pin of WDATA
P6.2/RDATA
I/O
&
I/O pin P6.2 or the data input pin of serial interface
P6.3/RCLK
I/O
&
I/O pin P6.3 or the clock I/O pin of RDATA
PA.0 to PA.3
I/O
&
I/O port A with wake up stop mode function
PB.0 to PB.3
I/O
&
I/O port B with wake up stop mode function
DTMF
O
Dual tone multi-frequency output pin
BTG
O
Beep tone generator output pin
RESET
V
DD
I
Reset input pin with low active
I
Positive power supply input pin
V
SS
I
Negative power supply input pin
Notes:
1
open drain option by software
&
open drain and pull high resistor option by software
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