µPD17P228

8

Data Sheet U14542EJ1V0DS00

2.2 PROM Programming Mode

Pin No.

Symbol

Function

Output Format

At Reset

11

CLK

Inputs clock for PROM programming.

–

–

12

GND

Ground.

–

–

20



23

24



27

28

Input/output 8-bit data for PROM programming

29

Power supply for PROM programming.

Apply +12.5 V to this pin as the program voltage when writing/

verifying program memory.

Input pins used to select operation mode when PROM is

programmed.

Power supply. Apply +6 V to this pin when writing/verifying

program memory.

––

––

CMOS

push-pull

Input

–

Input

Remark

The other pins are not used in the PROM programming mode. How to handle the other opins are

described in the section PIN CONFIGURATION (2) PROM programming mode.