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ST6209LB1/XXX

LOW VOLTAGE 8-BIT ROM MCUs WITH A/D CONVERTER AND 20 PINS

STMicroelectronics 

ST6208L/09L ST6210L/20L

1 GENERAL DESCRIPTION

1.1 INTRODUCTION

The ST6208L/09L/10L/20L are low voltage mask

programmed ROM version of ST62T08C/T09C/

T10C/T20C 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,

with the exception of the LVD Reset that is not

available.

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

1 4V typ

10

5

0 .5s m in

100 s max

TES T

100mA

max

150 s typ

4mA typ

t

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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