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参数资料
| 型号： | STWD100NWWY3F |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | PROGRAMMABLE TIMER, PDSO5 |
| 封装： | LEAD FREE, SOT-23, 5 PIN |
| 文件页数： | 9/25页 |
| 文件大小： | 222K |
| 代理商： | STWD100NWWY3F |
STWD100
DC and AC parameters
Table 4.
DC and AC characteristics
Sym
Description
Test condition(1)
Min
Typ
Max
Unit
VCC
Operating voltage
2.7
5
5.5
V
ICC
VCC supply current
13
26
A
ILO
Open drain output leakage current
from output to the GND or VCC
–1
+1
A
Input leakage current (WDI)
–1
+1
A
VIH
Input high voltage (WDI, EN)0.7 VCC
V
VIL
Input low voltage (WDI, EN)0.3 VCC
V
VOL
Output low voltage (WDO)
VCC ≥ 2.7 V, ISINK = 1.2 mA
0.3
V
VCC ≥ 4.5 V, ISINK = 3.2 mA
0.4
V
VOH
Output high voltage (WDO) (push-pull
only)
VCC ≥ 2.7 V, ISOURCE = 500 A
0.8 VCC
V
VCC ≥ 4.5 V, ISOURCE = 800 A
0.8 VCC
V
Enable pin ( EN)
EN input pulse width
1
s
EN glitch rejection
100
ns
EN-to-WDO delay(2)
200
ns
EN pull-down resistance
32
63
100
k
Ω
Watchdog Timer
VSTART Timer startup voltage
1.9
2.2
2.7
V
tWD
Watchdog timeout period
STWD100xP
2.3
3.4
4.6
ms
STWD100xW
4.3
6.3
8.6
ms
STWD100xX
71
102
142
ms
STWD100xY
1.12
1.6
2.24
s
tPW
Watchdog active time
140
210
280
ms
WDI-to-WDO delay(3)
150
ns
WDI pulse width
1
s
WDI glitch rejection
100
ns
1.
Valid for ambient operating temperature: TA = –40 to 125 °C; VCC = 2.7 V to 5.5 V except where noted.
2.
WDO will assert for minimum of 10 s even if EN transitions high.
3.
WDO will assert for minimum of 10 s regardless of transition on WDI (valid for STWD100xP only).
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相关代理商/技术参数 |
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| STWD100NXW83E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
| STWD100NXW83F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
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| STWD100NYW83E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Watchdog timer circuit |
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