参数资料
型号: MAX6322HPUK29C-T
厂商: Maxim Integrated Products
文件页数: 11/14页
文件大小: 0K
描述: IC MPU/RESET CIRC 2.93V SOT23-5
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 简单复位/加电复位
监视电压数目: 1
输出: 开路漏极,推挽式
复位: 高有效/低有效
复位超时: 最小为 140 ms
电压 - 阀值: 2.93V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 带卷 (TR)
MAX6316–MAX6322
5-Pin μP Supervisory Circuits with
Watchdog and Manual Reset
Figure 10 shows an example of a flow diagram where
the I/O driving the watchdog input is set high at the
beginning of the program, set low at the end of every
subroutine or loop, then set high again when the pro-
gram returns to the beginning. If the program should
hang in any subroutine, the problem would be quickly
corrected, since the I/O is continually set low and the
watchdog timer is allowed to time out, causing a reset
or interrupt to be issued. As described in the Watchdog
Input Current section, this scheme results in higher time
average WDI current than does leaving WDI low for the
START
SET WDI
HIGH
PROGRAM
CODE
POSSIBLE
majority of the timeout period and periodically pulsing it
low-high-low.
SUBROUTINE OR
PROGRAM LOOP
SET WDI LOW
RETURN
Figure 10. Watchdog Flow Diagram
INFINITE LOOP PATH
__________________Pin Configurations
TOP VIEW
Typical Operating Circuit
RESET 1
5 V CC
RESET 1
5 V CC
V IN
GND 2
MAX6316
MAX6320
GND 2
MAX6317
V CC
RESET
RESET
V CC
MAX6316
μ P
MR 3
4 WDI
MR 3
4 WDI
SOT23
SOT23
MANUAL
RESET
MR
GND
WDI
I/O
GND
RESET 1
GND 2
RESET 3
MAX6318
MAX6321
5 V CC
4 WDI
RESET 1
GND 2
RESET 3
MAX6319
MAX6322
5 V CC
4 MR
SOT23
Maxim Integrated
SOT23
11
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