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參數(shù)資料
| 型號： | S3C72F5XX-QX |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, QFP-100 |
| 文件頁數(shù)： | 33/41頁 |
| 文件大?。?/td> | 263K |
| 代理商： | S3C72F5XX-QX |
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S3C72F5/P72F5
S3P72F5 OTP
16–3
Table 16–1. Descriptions of Pins Used to Read/Write the EPROM
Main Chip
During Programming
Pin Name
Pin No.
I/O
Function
P0.2
SDAT
13
I/O
Serial data pin. Output port when reading and
input port when writing. Can be assigned as a
Input / push-pull output port.
P0.3
SCLK
14
I/O
Serial clock pin. Input only pin.
TEST
VPP(TEST)
19
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
22
I
Chip initialization
VDD / VSS
15/16
I
Logic power supply pin. VDD should be tied to
+5 V during programming.
Table 16–2. Comparison of S3P72F5 and S3C72F5 Features
Characteristic
S3P72F5
S3C72F5
Program Memory
16 Kbyte EPROM
16 Kbyte mask ROM
Operating Voltage (VDD)
1.8 V to 5.5 V
OTP Programming Mode
VDD = 5 V, VPP(TEST)=12.5V
Pin Configuration
100 QFP
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 S3P72F5, 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.
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