SAK-C505L Infineon Technologies AG, SAK-C505L Datasheet - Page 54

• Manufacturer Part Number: SAK-C505L
• Description: 8-bit CMOS Microcontroller
• Manufacturer: Infineon Technologies AG

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 s). 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
Data Sheet
PMSEL0
PMSEL1
XTAL1
XTAL2
P2.0-7
PALE
Port 2
V
DD
C505L
52
V
SS
Port 0
MCL04038
P0.0-7
EA/
PROG
PRD
RESET
PSEN
PSEL
V
PP
C505L
06.99