W741E260 Datasheet, PDF (6/94 Pages) Winbond – 4-BIT FLASH MICROCONTROLLER

W741E260
Pin description, continued
SYMBOL
I/O
VDD
I
VSS
I
VPP
I
MODE
I
DATA
I/O
FUNCTION
Positive power supply (+).
Negative power supply (-).
Voltage control pin for the flash EEPROM programming, erasing and
verifying. This pin has a built-in pull-low resistor.
Mode selection pin for the flash EEPROM programming, erasing and
verifying. This pin has a built-in pull-low resistor.
Data I/O pin for the flash EEPROM programming and verifying. This pin
has a built-in pull-low resistor.
BLOCK DIAGRAM
SEG0 to SEG31 COM0 to COM3 _{VDD1 to 3 DH1 to 2}
VPP
DATA
MODE
RAM
(128 x 4)
LCD DRIVER
Flash
EEPROM
(2048 x 16)
(look_up table
2K x 4)
+1(+2)
PC
STACK
(8 Levels)
ACC
ALU
Central Control
Unit
IEF
HCF
PSR0
MR0
.
HEF
EVF
SCR
MR1
.
PEF
SEF
PR
PM0
.
PORT RA
PORT RB
PORT RC
PORT RD
PORT RE
SEL
MUX
Timer 0
(8-bit)
Timer 1
(8-bit)
Modulation
Frequency
Pulse
Divider 1
(13/14-bit)
Watchdog Timer
(4-bit)
Divider 0
(14-bit)
Timing Generator
RA0 to 3
RB0 to 3
RC0 to 3
RD0 to 3
RE0 to 3
MFP
VDD
VSS
INT
RES
XIN1 XOUT1 XIN2 XOUT2
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