S3C8235 Datasheet, PDF (329/340 Pages) Samsung semiconductor – 8-BIT CMOS MICROCONTROLLERS USERS MANUAL



 
!"# $%%&'(%)(*+,-)./
/0,$
1
P0.3
1
SDAT
P0.4
V


SCLK
TEST
RESET
V_/V_
RESET
V_/V_
1%
14
15
20
23
16/17
%
*.

%
I/O Serial data pin. Output port when reading and
input port when writing. Can be assigned as a
Input/push-pull output port.
I/O Serial clock pin. Input only pin.
I Power supply pin for FlashROM cell writing
(indicates that FLASH MCU enters into the writing
mode). When 12.5 V is applied, FLASH MCU is
in writing mode and when 5 V is applied, FLASH
MCU is in reading mode. (Option)
I Chip Initialization
– Logic power supply pin. V_should be tied to
+5 V during programming.
!"# 0%$%%&
 ( 0 

0,
Program Memory
Operating Voltage (V_)
FLASH MCU Programming
Mode
Programmability

 
16K-byte Flash ROM
2.0 V to 5.5 V
V_ = 5 V, V


(TEST) = 12.5 V
User Program multi time
 0 
16K-byte mask ROM
2.0 V to 5.5 V
Programmed at the factory