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參數(shù)資料
| 型號： | AS1918Z-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Supervisory Man Reset Watchdog; Package Type: SOT23-5; Reset Type: Active-Low Open Drain; Supervised Voltages (IN1): 2,32 |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO5 |
| 封裝： | SOT23-5 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 370K |
| 代理商： | AS1918Z-T |
1 - 14
Datasheet
1 General Description
The AS1916 - AS1918 mcroprocessor supervisory circuits were
designed to generate a reset when the monitored supply voltage falls
below a factory-trimmed threshold. The reset remains asserted for a
mnimumtimeout period after the supply voltage stabilizes.
Guaranteed to be in the correct state for V
CC
higher than +1.0V,
these devices are ideal for portable and battery-powered systems
with strict monitoring requirements.
The devices feature factory-trimmed thresholds to monitor a supply
voltage between 1.8 and 3.6V.
The devices are available with the reset output types listed in
Table
1
.
The AS1916 - AS1918 include a manual-reset input for systems that
never fully power down the mcroprocessor.
Additionally, these devices feature a watchdog timer to help ensure
that the processor is operating within proper code boundaries.
The AS1916 - AS1918 are available in a 5-pin SOT23 package.
Figure 1. Typical Application Diagram
2 Key Features
V
CC
Supervisory Range: +1.8 to +3.6V
Guaranteed Reset Valid Down to V
CC
= +1.0V
Reset Timeout Delay: 215ms
Manual Reset Input
Three Reset Output Types
- Active-Low Push/Pull (AS1916)
- Active-High Push/Pull (AS1917)
- Active-Low Open-Drain (AS1918)
Watchdog Timeout Period: 1.5s
Immune to Fast Negative V
CC
Transients
External Components Not Required
Operating Temperature Range: -40 to +125°C
5-pin SOT23 Package
3 Applications
The devices are ideal for portable and battery-powered systems,
embedded controllers, intelligent instruments, automotive systems,
and critical CPU monitoring applications.
Table 1. Standard Products
Model
Reset Output Type
AS1916
Active-Low Push/Pull
AS1917
Active-High Push/Pull
AS1918
Active-Low Open-Drain
AS1916/
AS1918
External
Reset
CPU
I/O Supply
V
CC
GND
RESETN
I/O
4
WDI
5
VCC
3
MRN
GND 2
1
RESETN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1916R-T | Supervisory Man Reset Watchdog; Package Type: SOT23-5; Reset Type: Push/Pull Active-Low; Supervised Voltages (IN1): 2,63 |
| AS1916S-T | Supervisory Man Reset Watchdog; Package Type: SOT23-5; Reset Type: Push/Pull Active-Low; Supervised Voltages (IN1): 2,93 |
| AS1916Z-T | Supervisory Man Reset Watchdog; Package Type: SOT23-5; Reset Type: Push/Pull Active-Low; Supervised Voltages (IN1): 2,32 |
| AS1917R-T | Supervisory Man Reset Watchdog; Package Type: SOT23-5; Reset Type: Active-High Push/Pull; Supervised Voltages (IN1): 2,32 |
| AS1917S-T | Supervisory Man Reset Watchdog; Package Type: SOT23-5; Reset Type: Active-High Push/Pull; Supervised Voltages (IN1): 2,93 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS191R0FLF | 制造商:TT Electronics / IRC 功能描述:AS191R0FLF |
| AS191R0HLF | 制造商:TT Electronics / IRC 功能描述:AS191R0HLF |
| AS191R0JLF | 制造商:TT Electronics / IRC 功能描述:AS191R0JLF |
| AS1920 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Triple-Voltage, Micro-Power Microprocessor Supervisory Circuits |
| AS1920_07 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Triple-Voltage, Micro-Power Microprocessor Supervisory Circuits |
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