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參數(shù)資料
型號: W742C813
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4-BIT, MROM, 3.58 MHz, MICROCONTROLLER, PQFP100
封裝: 14 X 20 MM, 2.75 MM HEIGHT, QFP-100
文件頁數(shù): 6/56頁
文件大小: 455K
代理商: W742C813
W742E/C813
- 6 -
4. PIN DESCRIPTION
SYMBOL
I/O
FUNCTION
XIN2
I
Input pin for sub-oscillator.
Connected to 32.768 KHz crystal only.
XOUT2
O
Output pin for sub-oscillator with internal oscillation capacitor.
Connected to 32.768 KHz crystal only.
XIN1
I
Input pin for main-oscillator.
Connected to 3.58 MHz crystal or resistor to generate system clock.
XOUT1
O
Output pin for main-oscillator.
Connected to 3.58 MHz crystal or resistor to generate system clock.
RA0
RA3
Data_IO
I/O
Input/Output port.
Input/output mode specified by port mode 1 register (PM1).
RA.3: serial data Input/Output for electrical erasable EPROM type
RB0
RB3
I/O
Input/Output port.
Input/output mode specified by port mode 2 register (PM2).
RC0
RC3
I
Input port only.
Each pin has an independent interrupt capability.
RD0
RD3
I
Input port only.
This port can release hold mode but can not occur interrupt service
routine.
RE0
RE3
RF0
RF3
P00
P03
O Output port only. CMOS type with high sink current capacity for the
LED application.
I/O
Input/Output port.
Input/output mode specified by port mode 6 register (PM6).
P0.0 and P0.1 can be a serial I/O interface selected by SIR register.
P0.0 indicates serial clock, P0.1indicates serial data.
P10
P13
Mode
I Input port only.
P1.2 & P1.3 indicates hardware interrupt (INT0 & INT1)
P1.3: Mode select for electrical erasable EPROM type
MFP
O
Output pin only,default in low state.
This pin can output modulating or nonmodulating frequency, or Timer
1 clock output specified by mode register 1 (MR1).
DTMF
O
This pin can output dual-tone multifrequency signal for dialling.
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