ST62P45BQ1 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST62P45BQ1

8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER

STMicroelectronics 

ST6245B

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST6245B is mask programmed ROM version

of ST62T45B OTP devices.

It offers the same functionality as OTP devices,

selecting as ROM options the options defined in

the programmable option byte of the OTP version.

Figure 1. Programming wave form

1.2 ROM READOUT PROTECTION

If the ROM READOUT PROTECTION option is

selected, a protection fuse can be blown to pre-

vent any access to the program memory content.

In case the user wants to blow this fuse, high volt-

age must be applied on the TEST pin.

Figure 2. Programming Circuit

TES T

15

14V typ

10

5

0.5s min

100 s max

t

TE S T

15 0 s typ

100mA

max

4mA typ

t

VR02001

5V 47m F

100nF

VS S

VDD

TE S T

100nF

P ROTE CT

14V

ZP D15

15V

VR02003

Note: ZPD15 is used for overvoltage protection

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