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SAFC505 Datasheet(PDF) 54 Page - Infineon Technologies AG |
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SAFC505 Datasheet(HTML) 54 Page - Infineon Technologies AG |
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54 / 85 page  C505L Data Sheet 52 06.99 OTP Memory Operation The C505L contains a 32 Kbyte one-time programmable (OTP) program memory. With the C505L fast programming cycles are achieved (1 byte in 100 µs). Also several levels of OTP memory protection can be selected. For programming of the device, the C505L must be put into the programming mode. This typically is done not in-system but in a special programming hardware. In the programming mode the C505L operates as a slave device similar as an EPROM stand-alone memory device and must be controlled with address/data information, control lines, and an external 11.5 V programming voltage. Figure 26 shows the pins of the C505L which are required for controlling of the OTP programming mode. Figure 26 Programming Mode Configuration MCL04038 C505L P0.0-7 XTAL1 XTAL2 V DD V SS EA/ V PP PROG PRD RESET PSEN PSEL PMSEL1 PMSEL0 PALE P2.0-7 Port 2 Port 0 |
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