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參數資料
型號: W742C81A
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT MICROCONTROLLER
中文描述: 4-BIT, FLASH, MICROCONTROLLER, UUC100
封裝: DIE-100
文件頁數: 6/45頁
文件大小: 567K
代理商: W742C81A
Preliminary W742E81A/W742C81A
- 6 -
Pin Description, continued
SYMBOL
I/O
FUNCTION
V
PP
I
Voltage control pin for the flash EEPROM programming, erasing and verifying.
This pin has the built-in pull-low resistor.
MODE
I
This pin can be used as mode selection control; data read/write clock;
program/erase control or address counter control in the flash EEPROM erasing,
programming or verifying mode. This pin has the built-in pull-low resistor.
DATA
I/O Data I/O pin with the built-in pull-low resistor.
5. BLOCK DIAGRAM
LCD DRIVER
PC
STACK
(16 Levels)
RAM
(2048*4)
ALU
Timer 0
(8 Bit)
Timing Generator
PORT RA
PORT RB
PORT RC
Modulation
Frequency
Pulse
SEG0~SEG39
COM0~COM3
RA0-3
RB0-3
RC0-3
RD0-3
MFP
XIN1 XOUT1
XIN2
XOUT2
VDD
VSS
VDD1-2
DH1-2
Flash
EEROM
(16384*16)
(look_up table
Timer 1
(8 Bit)
ACC
RES
Divider 0
(14 Bit)
Watch Dog Timer
(4 Bit)
HCF
PEF
HEF
IEF
Central
Control
Unit
EVF
SEF
PSR0
SCR
PR
MR0
MR1
PORT RE
MUX
SEL
+1(+2)
PORT RD
PM0
Divider 1
(12/14 Bit)
RE0-3
PORT RF
RF0-3
DTMF
Generator
DTMF
PM1
DTMF
DTCR
VPP
DATA
MODE
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