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參數資料
| 型號： | W742S81A |
| 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, FLASH, 3.58 MHz, MICROCONTROLLER, PQFP100 |
| 文件頁數： | 4/47頁 |
| 文件大小： | 242K |
| 代理商： | W742S81A |
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W742S81A
- 4 -
4. PIN DESCRIPTION
SYMBOL
XIN2
I/O
I
FUNCTION
Input pin for sub-oscillator.
Connected to 32.768 KHz crystal only.
Output pin for sub-oscillator with internal oscillation capacitor. Connected to 32.768 KHz
crystal only.
Input pin for main-oscillator.
Connected to 3.58MHz or 400KHz crystal or RC to generate system clock.
Output pin for main-oscillator.
Connected to 3.58MHz or 400KHz crystal or RC to generate system clock.
Input/Output port.
Input/output mode specified by port mode 1 register (PM1).
Input/Output port.
Input/output mode specified by port mode 2 register (PM2).
4-bit port for input only.
Each pin has an independent interrupt capability.
Input/Output port.
Input/output mode specified by port mode 5 register (PM5).
O Output port only. With high sink current capacity for the LED application.
O Output port only.
O
This pin can output modulating or nonmodulating frequency, or Timer 1 specified frequency.
It can be selected by bit 0 of BUZCR (BUZCR.0).
O
This pin can output dual-tone multifrequency signal for dialling.
I
System reset pin with pull-high resistor.
O
LCD segment output pins.
O
LCD common signal output pins.
The LCD alternating frequency can be selected by code option.
I
Connection terminals for voltage doubler (halver) capacitor.
I
Positive (+) supply voltage terminal.
Refer to Functional Description.
I
Positive power supply (+).
I
Negative power supply (-).
I
Voltage control pin for the electrical erasable EPROM programming, erasing and verifying.
This pin has the built-in pull-low resistor.
I
This pin can be used as mode selection control; data read/write clock;
program/erase control or address counter control in the electrical erasable EPROM erasing,
programming or verifying mode. This pin has the built-in pull-low resistor.
I/O
Data I/O pin with the built-in pull-low resistor.
XOUT2
O
XIN1
I
XOUT1
O
RA0-RA3
I/O
RB0-RB3
I/O
RC0-RC3
I
RD0-RD3
I/O
RE0-RE3
RF0-RF3
MFP
Output pin only.
DTMF
RES
SEG0-SEG39
COM0-
COM3
DH1, DH2
VDD1
VDD2
VDD
VSS
VPP
MODE
DATA
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PDF描述 |
|---|---|
| W742S82A | 4-BIT TELEPHONE CONTROLLER |
| W74IE20X | 4-BIT FLASH MICROCONTROLLER |
| W741E202 | 4-BIT FLASH MICROCONTROLLER |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W742S82A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT TELEPHONE CONTROLLER |
| W7-48D12 | 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES |
| W7-48D15 | 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES |
| W7-48D5 | 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES |
| W7-48S12 | 制造商:INTRONICS 制造商全稱:INTRONICS 功能描述:DC/DC MODULES |
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