HT82K75R datasheet(40/66 Pages) HOLTEK

40 / 66 page

Pin Assignment

EEPROM Memory Pin Description

Pin Name

Type

Description

VDDP

External Positive power supply for EEPROM Memory

VSSP

External Negative power supply for EEPROM Memory, ground

SDA

I/O

Internal Serial data input/output signal

Internal connected with MCU I/O line.

SCL

Serial clock input signal

Internal connected with MCU I/O line.

Implies that the pin is

²Not Connected² and can therefore not be used.

Note:

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.

HT82M75R/HT82M75RE

HT82K75R/HT82K75RE

Rev. 1.30

November 24, 2010

4 8

4 7

4 6

4 5

4 4

4 3

4 2

4 1

4 0

3 9

3 8

3 7

3 6

3 5

3 4

3 3

3 2

3 1

3 0

2 9

2 8

2 7

2 6

2 5

1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

2 0

2 1

2 2

2 3

2 4

H T 8 2 K 7 5 R E

4 8 S S O P - A

N C

V S S

R E S

P A 0

P A 1

P A 2 / T M R

P A 3

P A 4

P A 5

P A 6

P A 7

P D 0

P D 1

P D 2

P D 3

P D 4

P D 5

P D 6

P D 7

P B 0 / S C S

P C 7 / S C K

P C 6 / S D O

P C 5 / S D I

P C 4

V D D

N C

B A T _ I N

V S S L X

L X

P B 7

P B 6

P B 5

P B 4

P B 3

P B 2

P B 1

P E 0

P E 1

P E 2

P E 3

P E 4

P E 5

P E 6

P E 7

V S S P

V D D P

P C 2 / I N T

P C 3

H T 8 2 M 7 5 R E

3 2 Q F N - A