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參數(shù)資料
| 型號： | S3P72G9XX-QX |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, 4.19 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, QFP-100 |
| 文件頁數(shù)： | 17/26頁 |
| 文件大?。?/td> | 181K |
| 代理商： | S3P72G9XX-QX |
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S3C72G9/P72G9
S3P72G9 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
P0.1
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.
P0.0
SCLK
14
I/O
Serial clock pin. Input only pin.
TEST
V
PP (TEST1)
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
V
DD/VSS
V
DD/VSS
15/16
I
Logic power supply pin. VDD should be tied to +5 V
during programming.
Table 16-2. Comparison of S3P72G9 and S3C72G9 Features
Characteristic
S3P72G9
S3C72G9
Program Memory
32 Kbyte EPROM
32 Kbyte mask ROM
Operating Voltage (V
DD)
2.2 V to 3.4 V
OTP Programming Mode
V
DD = 5 V, VPP (TEST1) = 12.5 V
–
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 V
PP(TEST1) pin of the S3P72G9, 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
V
DD
V
PP
(TEST1)
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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