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參數(shù)資料
| 型號： | Q67127-C1031 |
| 廠商： | SIEMENS AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-Bit CMOS Microcontroller |
| 中文描述： | 8位CMOS微控制器 |
| 文件頁數(shù)： | 25/48頁 |
| 文件大?。?/td> | 319K |
| 代理商： | Q67127-C1031 |
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Semiconductor Group
25
1997-04-01
C501
OTP Operation
The C501-1E is programmed by usng a modified Quick-Pulse Programming
TM 1)
algorithm. It differs
from older methods in the value used for V
PP
(programming supply voltage) and in the width and
number of the ALE/PROG pulses. The C501-1E contains two signature bytes that can be read and
used by a programming system to identify the device. The signature bytes identify the manufacturer
of the device.
Table 11
shows the logic levels for reading the signature byte, and for programming the program
memory, the encryption table, and the security bits. The circuit configuration and waveforms for
quick-pulse programming are shown in
figures 10
to
12
.
Notes :
1. “0” = valid low for that pin, “1” = valid high for that pin.
2. V
PP
= 12.75 V
±
0.25V
3. V
CC
= 5 V
±
10% during programming and verification.
4. ALE/PROG receives 25 programming pulses while V
PP
is held at 12.75 V. Each programming pulse is low for
100
μ
s (
±
10
μ
s) and high for a minimum of 10
μ
s.
1)
Quick-Pulse Programming
TM
is a trademark phrase of Intel Corporation
Table 11
OTP Programming Modes
Mode
RESET
PSEN
ALE/
PROG
EA/V
PP
P2.7
P2.6
P3.7
P3.6
Read signature
1
0
1
1
0
0
0
0
Program code data
1
0
0
V
PP
1
1
0
1
1
Verify code data
1
0
1
0
0
1
1
Progam encryption table
1
0
0
V
PP
V
PP
V
PP
1
0
1
0
Program security bit 1
1
0
0
1
1
1
1
Program security bit 2
1
0
0
1
1
0
0
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| Q67127-C1081 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
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