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| 型號(hào)： | S3P8075XX-QT |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 14 X 20 MM, QFP-64 |
| 文件頁(yè)數(shù)： | 19/30頁(yè) |
| 文件大?。?/td> | 217K |
| 代理商： | S3P8075XX-QT |
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S3P8075 OTP
S3C8075/P8075
16-4
Table 16-1. Descriptions of Pins Used to Read/Write the EPROM
Main Chip
During Programming
Pin Name
Pin No.
I/O
Function
P4.1
SDAT
14 (7)
I/O
Serial Data Pin (Output when reading, Input
when writing) Input and Push-pull Output Port
can be assigned.
P4.0
SCLK
15 (8)
I
Serial Clock Pin (Input Only Pin)
EA
V
PP
20 (13)
I
EPROM Cell Writing Power Supply Pin
(Indicates OTP Mode Entering) When writing
12.5V is applied and when reading 5 V is applied
(Option).
RESET
23 (9)
I
Chip Initialization
V
DD1/VSS1
V
DD/VSS
16/17
(9/10)
I
Logic Power Supply Pin. VDD should be tied to
5V during programming.
NOTE: Parentheses indicate 64-QFP pin number.
Table 16-2. Comparison of S3P8075 and S3C8075 Features
Characteristic
S3P8075
S3C8075
Program Memory
16 Kbyte EPROM
16 Kbytes mask ROM
Operating Voltage (V
DD)
2.7 V to 5.5 V
2.7 V to 5.5V
OTP Programming Mode
V
DD = 5 V, VPP (TEST) = 12.5V
Pin Configuration
64 SDIP, 64 QFP
EPROM Programmability
User Program 1 time
Programmed at the factory
OPERATING MODE CHARACTERISTICS
When 12.5 V is supplied to the V
PP (TEST) pin of S3P8075, 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 15-3 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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