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| 型号： | MAX16067ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 28/48页 |
| 文件大小： | 0K |
| 描述： | IC SYSTEM MANAGER 6CH 32-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 电源监控器，序列发生器 |
| 电源电压： | 2.8 V ~ 14 V |
| 电流 - 电源： | 2.8mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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6-Channel, Flash-Configurable System Manager
with Nonvolatile Fault Registers
the watchdog timer expires. RESET is not affected by
the watchdog timer when the Watchdog Reset Output
Enable bit (r76h[7]) is set to ‘0’. If a RESET is asserted
by the watchdog timeout, the WDRESET bit is set to ‘1’. A
connected processor can check this bit to see the reset
was due to a watchdog timeout.
See Table 23 for more information on configuring watch-
dog functionality.
Independent Watchdog Timer Operation
When r73h[4] is ‘1,’ the watchdog timer operates in
the independent mode. In the independent mode, the
watchdog timer operates as if it were a separate device.
The watchdog timer is activated immediately upon V CC
V TH
LAST MON_
WDI
exceeding UVLO and once the boot-up sequence is fin-
ished. When RESET is asserted by the sequencer state
machine, the watchdog timer and WDO are not affected.
There is a startup delay if r76h[6:4] is set to a value dif-
ferent than ‘000’. If r76h[6:4] is set to ‘000’, there is not a
startup delay. See Table 23 for delay times.
In independent mode, if the Watchdog Reset Output
Enable bit (r76h[7]) is set to ‘1,’ when the watchdog
timer expires, WDO asserts then RESET asserts. WDO
is then deasserts. WDO is low for approximately 1 F s. If
the Watchdog Reset Output Enable bit (r76h[7]) is set to
‘0,’ when the watchdog timer expires, WDO asserts but
RESET is not affected.
< t WDI
t WDI_STARTUP
< t WDI
tRP
RESET
Figure 6. Normal Watchdog Startup Sequence
V CC
WDI
< t WDI
< t WDI
< t WDI
> t WDI
< t WDI
< tWDI
< t WDI
0V
t WDI
V CC
WDO
0V
Figure 7. Watchdog Timer Operation
28
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| MAX16069FTC+T | 功能描述:监控电路 Quad/Hex/Octal Volt uP Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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