参数资料
型号: MAX6316LUK29AX-T
厂商: Maxim Integrated Products
文件页数: 6/14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: 推挽式,图腾柱
复位: 低有效
复位超时: 最小为 1 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
V CC
MAX6316–MAX6322
RESET
MR
(ALL EXCEPT
MAX6318/MAX6321)
V CC
52k ?
1.23V
RESET
GENERATOR
(ALL EXCEPT MAX6317)
RESET
(ALL EXCEPT
MAX6316/MAX6320P)
WDI
(ALL EXCEPT
WATCHDOG
TRANSITION
DETECTOR
WATCHDOG
TIMER
MAX6319/MAX6322)
52k ?
GND
Figure 1. Functional Diagram
_______________Detailed Description
A microprocessor’s (μP) reset input starts or restarts the
μP in a known state. The reset output of the MAX6316–
MAX6322 μP supervisory circuits interfaces with the
reset input of the μP, preventing code-execution errors
during power-up, power-down, and brownout condi-
tions (see the Typical Operating Circuit). The MAX6316/
MAX6317/MAX6318/MAX6320/MAX6321 are also capa-
the watchdog timeout period (t WD ). Reset remains assert-
ed for the specified reset active timeout period (t RP ) after
V CC rises above the reset threshold, after MR transitions
low to high, or after the watchdog timer asserts the reset
(MAX6316_/MAX6317H/MAX6318_H/MAX6320P/
MAX6321HP). After the reset active timeout period (t RP )
expires, the reset output deasserts, and the watchdog
timer restarts from zero (Figure 2).
ble of asserting a reset should the μP become stuck in
an infinite loop.
V CC
Reset Output
The MAX6316L/MAX6318LH/MAX6319LH feature an
GND
1V
V RST
V RST
1V
active-low reset output, while the MAX6317H/
MAX6318_H/MAX6319_H/MAX6321HP/MAX6322HP
RESET
t RP
t RD
feature an active-high reset output. RESET is guaran-
teed to be a logic low and RESET is guaranteed to be a
logic high for V CC down to 1V.
The MAX6316–MAX6322 assert reset when V CC is below
the reset threshold (V RST ), when MR is pulled low
RESET
GND
t RP
t RD
(MAX6316_/MAX6317H/MAX6319_H/MAX6320P/
MAX6322HP only), or if the WDI pin is not serviced within
6
Figure 2. Reset Timing Diagram
Maxim Integrated
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