ST62T09LT6/SWD View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST62T09LT6/SWD

8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET

STMicroelectronics 

ST6208C/ST6209C/ST6210C/ST6220C

TRANSFER OF CUSTOMER CODE (Cont’d)

12.6.2 ROM VERSION

The ST6208C, 09C, 10C and 20C are mask pro-

grammed ROM version of ST62T08C, T09C,

T10C and 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.

ROM Readout Protection. If the ROM READOUT

PROTECTION option is selected, a protection

fuse can be blown to prevent 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 6. Programming wave form

Figure 5. Programming Circuit

TEST

0.5s min

5V 4.7µF

100nF

VDD

VSS

TEST

100nF

PROTE CT

14V

ZPD15

15V

VR02003

15

14V typ

10

5

TEST

400mA

max

4mA typ

150 µs typ

t

VR02001

Note: ZPD15 is used for overvoltage protection

98/105

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