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參數(shù)資料
| 型號(hào)： | S3C8465XX-AQ |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP64 |
| 封裝： | 0.750 INCH, SDIP-64 |
| 文件頁數(shù)： | 27/33頁 |
| 文件大?。?/td> | 228K |
| 代理商： | S3C8465XX-AQ |
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KS88P4632 OTP
S3C8465/C8469/P8469
21-4
Table 21-1. Descriptions of Pins Used to Read/Write the EPROM
Main Chip
During Programming
Pin Name
Pin No.
I/O
Function
P4.2
SDAT
14(7)
I/O
Serial data pin. Output port when reading and
input port when writing. Can be assigned as a
Input/push-pull output port.
P4.1
SCLK
15(8)
I
Serial clock pin. Input only pin.
EA
V
PP
20(13)
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 aplied, OTP is in reading mode.
(Option)
RESET
23(16)
I
Chip Initialization
V
DD/VSS
V
DD/VSS
16(9)/17(10)
–
Logic power supply pin. V
DD should be tied to
+5 V during programming.
NOTE: ( ) means 64 QFP package.
Table 21-2. Comparison of S3P8469 and S3C8465/C8469 Features
Characteristic
S3P8469
S3C8465/C8469
Program Memory
32K-byte EPROM
16/32K-byte mask ROM
Operating Voltage (V
DD)
2.7 V to 5.5 V
OTP Programming Mode
V
DD = 5 V, VPP (EA) = 12.5 V
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 (EA) pin of the S3P8469, 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 21-3 below.
Table 21-3. Operating Mode Selection Criteria
V
DD
VPP
(EA)
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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| S3C8627XX-QZ | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S3C8469 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:S3C8465/C8469 MICROCONTROLLER |
| S3C8475 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:S3C8478/C8475 MICROCONTROLLER |
| S3C8478 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:S3C8478/C8475 MICROCONTROLLER |
| S3C84A4 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:S3C84A4X MICROCONTROLLER |
| S3C84BB | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:8-BIT CMOS |
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