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參數(shù)資料
型號(hào): W741E260
廠商: WINBOND ELECTRONICS CORP
元件分類(lèi): 微控制器/微處理器
英文描述: 4-BIT FLASH MICROCONTROLLER
中文描述: 4-BIT, FLASH, 4.19 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁(yè)數(shù): 6/94頁(yè)
文件大小: 554K
代理商: W741E260
W741E260
- 6 -
Pin description, continued
SYMBOL
I/O
FUNCTION
V
DD
I
Positive power supply (+).
V
SS
I
Negative power supply (-).
V
PP
I
Voltage control pin for the flash EEPROM programming, erasing and
verifying. This pin has a built-in pull-low resistor.
MODE
I
Mode selection pin for the flash EEPROM programming, erasing and
verifying. This pin has a built-in pull-low resistor.
DATA
I/O
Data I/O pin for the flash EEPROM programming and verifying. This pin
has a built-in pull-low resistor.
BLOCK DIAGRAM
LCD DRIVER
PC
STACK
(8 Levels)
RAM
(128 x 4)
ALU
Timer 0
(8-bit)
Timing Generator
PORT RA
PORT RB
PORT RC
Modulation
Frequency
Pulse
SEG0 to SEG31
COM0 to COM3
RA0 to 3
RB0 to 3
RC0 to 3
RD0 to 3
MFP
XIN2
XOUT2
VDD
VSS
INT
VDD1 to 3
DH1 to 2
Flash
EEPROM
(2048 x 16)
(look_up table
2K x 4)
Timer 1
(8-bit)
ACC
RES
Divider 0
(14-bit)
Watchdog 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
(13/14-bit)
RE0 to 3
VPP
DATA
MODE
XIN1 XOUT1
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