参数资料
型号: TMP86CH47IUG
厂商: Toshiba Corporation
英文描述: Zener Diode; Application: General; Pd (mW): 500; Vz (V): 17.5 to 18.3; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
中文描述: 8位微控制器
文件页数: 65/160页
文件大小: 1627K
代理商: TMP86CH47IUG
Page 57
TMP86CH47IUG
7. Watchdog Timer (WDT)
The watchdog timer is a fail-safe system to detect rapidly the CPU malfunctions such as endless loops due to spu-
rious noises or the deadlock conditions, and return the CPU to a system recovery routine.
The watchdog timer signal for detecting malfunctions can be programmed only once as “reset request” or “inter-
rupt request”. Upon the reset release, this signal is initialized to “reset request”.
When the watchdog timer is not used to detect malfunctions, it can be used as the timer to provide a periodic inter-
rupt.
Note: Care must be taken in system design since the watchdog timer functions are not be operated completely due to
effect of disturbing noise.
7.1
Watchdog Timer Configuration
Figure 7-1 Watchdog Timer Configuration
0034
H
Overflow
WDT output
Internal reset
Binary counters
WDTOUT
Writing
clear code
Writing
disable code
WDTEN
WDTT
2
0035
H
Watchdog timer control registers
WDTCR1
WDTCR2
INTWDT
interrupt
request
Interrupt request
Reset
request
Reset release
Clock
Clear
1
2
Controller
Q
S
R
S
R
Q
S
fc/2
23
or fs/2
15
fc/2
21
or fs/2
13
fc/2
19
or fs/2
11
fc/2
17
or fs/2
9
相关PDF资料
PDF描述
TMP86CH47SUG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 18.1 to 19.0; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86CH49FG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 18.8 to 19.7; Condition Iz at Vz (mA): 2; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86CH72FG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 19.5 to 20.4; Condition Iz at Vz (mA): 2; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86CK74AFG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 20.2 to 21.1; Condition Iz at Vz (mA): 2; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86CM23AUG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 20.9 to 21.9; Condition Iz at Vz (mA): 2; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
相关代理商/技术参数
参数描述
TMP86CH47SUG 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller
TMP86CH47U 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:CMOS 8 BIT MICROCONTROLLER
TMP86CH47UG 制造商:Toshiba America Electronic Components 功能描述:MCU 8BIT TLCS-870 CISC 16KB ROM 5V 44PQFP - Rail/Tube
TMP86CH49FG 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:8 Bit Microcontroller
TMP86CH72FG 制造商:Toshiba America Electronic Components 功能描述:TLCS870/C 16K ROM , VFT - Rail/Tube