전자부품 데이터시트 검색엔진 |
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Q67120-C1010 데이터시트(PDF) 25 Page - Infineon Technologies AG |
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Q67120-C1010 데이터시트(HTML) 25 Page - Infineon Technologies AG |
25 / 48 page 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 µs (± 10 µs) and high for a minimum of 10 µs. 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 1 0000 Program code data 1 0 0 VPP 1011 Verify code data 1 0 1 1 0011 Progam encryption table 1 0 0 VPP 1010 Program security bit 1 1 0 0 VPP 1111 Program security bit 2 1 0 0 VPP 1100 |
유사한 부품 번호 - Q67120-C1010 |
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유사한 설명 - Q67120-C1010 |
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