參數(shù)資料
型號: ST6242B
英文描述: 8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTROM. EPROM. LCD DRIVER. EEPROM. A/D CONVERTER AND 64 PINS
中文描述: 8位微控制器(MCU)的與檢察官辦公室。光盤。 FASTROM。存儲器。液晶顯示驅動程序。 EEPROM中。的A / D轉換器和64個
文件頁數(shù): 70/74頁
文件大?。?/td> 733K
代理商: ST6242B
70/74
ST6246B
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST6246B is mask programmed ROM version
of ST62T46B 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
Note: ZPD15 is used for overvoltage protection
t
0.5s min
TEST
15
14V typ
10
5
TEST
100mA
max
4mA typ
VR02001
150 μs typ
5V
V
DD
47mF
14V
VR02003
TEST
100nF
PROTECT
100nF
V
SS
ZPD15
15V
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