ht82m75r Holtek Semiconductor Inc., ht82m75r Datasheet - Page 40

• Manufacturer Part Number: ht82m75r
• Description: I/o Type 8-bit Otp Mcu
• Manufacturer: Holtek Semiconductor Inc.

Pin Assignment
EEPROM Memory Pin Description
Note:
Rev. 1.10
VDDP
VSSP
SDA
SCL
NC
Pin Name
The pin descriptions for all external pins with the exception of the EEPROM VDDP and VSSP pins are
described in the preceding MCU section.
VDDP and VSSP should be externally connected to the MCU power supply named VDD and VSS respectively.
The SDA and SCL lines here are internal connected to the MCU I/O pins PC0 and PC1 respectively for these
devices.
Type
I/O
I
External Positive power supply for EEPROM Memory
External Negative power supply for EEPROM Memory, ground
Internal Serial data input/output signal
Internal connected with MCU I/O line.
Serial clock input signal
Internal connected with MCU I/O line.
Implies that the pin is Not Connected and can therefore not be used.
40
Description
HT82M75R/HT82M75RE
HT82K75R/HT82K75RE
June 11, 2010