参数资料
型号: ST72E331J4D0
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP42
封装: 0.600 INCH, WINDOWED, CERAMIC, SDIP-42
文件页数: 14/107页
文件大小: 691K
代理商: ST72E331J4D0
14/107
ST72E331 ST72T331
1.5 OPTION BYTE
The user has the option to select software watch-
dog or hardware watchdog (see description in the
Watchdog chapter). When programming EPROM
or OTP devices, this option is selected in a menu
by the user of the EPROM programmer before
burning the EPROM/OTP. The Option Byte is lo-
cated in a non-user map. No address has to be
specified. The Option Byte is at FFh after UV eras-
ure and must be properly programmed to set de-
sired options.
OPTBYTE
Bit 7:4 = Not used
Bit 3 = Reserved, must be cleared.
Bit 2 = Reserved, must be set on ST72T331N de-
vices and must be cleared on ST72T331J devices.
Bit 1 = Not used
Bit 0 = WDG
Watchdog disable
0: The Watchdog is enabled after reset (Hardware
Watchdog).
1: The Watchdog is not enabled after reset (Soft-
ware Watchdog).
70
-
b3
b2
-
WDG
14
相关PDF资料
PDF描述
ST72T331N2T1S 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72T331J4B6 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42
ST72T331J2T6 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP44
ST72E331N4D0 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP56
ST72T331N2B6S 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP56
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