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ST6253C bảng dữ liệu(PDF) 80 Page - STMicroelectronics

tên linh kiện ST6253C
Giải thích chi tiết về linh kiện  8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER, EEPROM AND SPI
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ST6253C bảng dữ liệu(HTML) 80 Page - STMicroelectronics

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ST6253C/60B/63B
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST6253C, ST6260B and ST6263B are mask
programmed
ROM
versions
of
ST62T53C,
ST6260B and ST62T63C 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,
except the LVD & OSG options that are not availa-
ble on the ST6260B/63B ROM device.
Figure 54. 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 55. Programming Circuit
Note: ZPD15 is used for overvoltage protection
0.5s min
TEST
15
14V typ
10
5
TEST
100mA
4mA typ
VR02001
max
150 µs typ
t
VR02003
TEST
5V
100nF
47mF
PROTECT
100nF
VDD
VSS
ZPD15
15V
14V
1



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