參數(shù)資料
型號(hào)： S3C9432XX-DH
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP16
封裝： 0.300 INCH, DIP-16
文件頁(yè)數(shù)： 25/31頁(yè)
文件大?。?/td> 190K
代理商： S3C9432XX-DH
S3C9432/C9434/P9434
S3P9434 OTP
16-5
Table 16-1. Descriptions of Pins Used to Read/Write the EPROM
Main Chip
During Programming
Pin Name
Pin No.
I/O
Function
P0.3
SDAT
18 (20-pin)
16 (18-pin)
I/O
Serial data pin (output when reading, Input
when writing) Input and push-pull output
port can be assigned
P0.2
SCLK
19 (20-pin)
17 (18-pin)
I
Serial clock pin (input only pin)
TEST
VPP (TEST)
4
I
Power supply pin for EPROM cell writing
(indicates that OTP enters into the writing mode).
When 12.5 V is applied, OTP is in writing mode
and when 5 V is applied, OTP is in reading
mode. (Option)
RESET
7
I
Chip Initialization
VDD/VSS
20 (20-pin), 18 (18-pin)
1 (20-pin), 1 (18-pin)
I
Logic power supply pin.
NOTE: ( ) means the SOP OTP pin number.
Table 16-2. Comparison of S3P9434 and S3C9432/C9434 Features
Characteristic
S3P9434
S3C9432/C9434
Program Memory
4 Kbyte EPROM
2K/4K byte mask ROM
Operating Voltage (VDD)
3.0 V to 5.5 V
OTP Programming Mode
VDD = 5 V, VPP (TEST) = 12.5 V
Pin Configuration
20 DIP/20 SOP/18 DIP
EPROM Programmability
User Program 1 time
Programmed at the factory
OPERATING MODE CHARACTERISTICS
When 12.5 V is supplied to the VPP (TEST) pin of the S3P9434, the EPROM programming mode is entered. The
operating mode (read, write, or read protection) is selected according to the input signals to the pins listed in
Table 16-3 below.
Table 16-3. Operating Mode Selection Criteria
VDD
VPP
(TEST)
REG/
MEM
ADDRESS
(A15-A0)
R/W
MODE
5 V
0
0000H
1
EPROM read
12.5 V
0
0000H
0
EPROM program
12.5 V
0
0000H
1
EPROM verify
12.5 V
1
0E3FH
0
EPROM read protection
NOTE: "0" means Low level; "1" means High level.
相關(guān)PDF資料
PDF描述
S3C9432XX-DI 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP18
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