参数资料
型号: SAB-C501G-LM
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 12 MHz, MICROCONTROLLER, PQFP44
封装: PLASTIC, MQFP-44
文件页数: 18/48页
文件大小: 319K
代理商: SAB-C501G-LM
Semiconductor Group
25
1997-04-01
C501
OTP Operation
The C501-1E is programmed by usng a modified Quick-Pulse ProgrammingTM 1) algorithm. It differs
from older methods in the value used for VPP (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. VPP = 12.75 V ± 0.25V
3. VCC = 5 V ± 10% during programming and verification.
4. ALE/PROG receives 25 programming pulses while VPP is held at 12.75 V. Each programming pulse is low for
100
s (± 10 s) and high for a minimum of 10 s.
1) Quick-Pulse ProgrammingTM is a trademark phrase of Intel Corporation
Table 11
OTP Programming Modes
Mode
RESET
PSEN
ALE/
PROG
EA/VPP
P2.7
P2.6
P3.7
P3.6
Read signature
1
0
1
0000
Program code data
1
0
VPP
1011
Verify code data
1
0
1
0011
Progam encryption table
1
0
VPP
1010
Program security bit 1
1
0
VPP
1111
Program security bit 2
1
0
VPP
1100
相关PDF资料
PDF描述
SAB-C501G-1E24N 8-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PQCC44
SAF-C501G-1EN 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQCC44
SAF-C501G-1EP 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PDIP40
SAF-C501G-1R24P 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP40
SAF-C501G-1E24P 8-BIT, OTPROM, 24 MHz, MICROCONTROLLER, PDIP40
相关代理商/技术参数
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