ST62T28CM6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST62T28CM6

8-BIT MCUs WITH A/D CONVERTER, AUTO-RELOAD TIMER, UART, OSG, SAFE RESET AND 28-PIN PACKAGE

STMicroelectronics 

ST6228C

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST6228C is mask programmed ROM version

of ST62T28C OTP devices.

They offer the same functionality as OTP devices,

selecting as ROM options the options defined in

the programmable option byte of the OTP version.

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 1. Programming wave form

Figure 2. Programming Circuit

TEST

15

14V typ

10

5

TEST

100mA

max

4mA typ

0.5s min

150 µs typ

t

VR02001

5V 47mF

100nF

VSS

VDD

TEST

100nF

PROTECT

14V

ZPD15

15V

VR02003

Note: ZPD15 is used for overvoltage protection

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