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參數(shù)資料
| 型號： | STM6821SWY6F |
| 廠商： | 意法半導體 |
| 英文描述： | 5-Pin Supervisor with Watchdog Timer and Push-button Reset |
| 中文描述： | 5引腳監(jiān)控，帶有看門狗定時器和按鈕復位 |
| 文件頁數(shù)： | 17/21頁 |
| 文件大小： | 315K |
| 代理商： | STM6821SWY6F |
17/21
STM6321/6322/6821/6822/6823/6824/6825
Note: 1. Valid for Ambient Operating Temperature: T
A
= –40 to 85°C; V
CC
= 4.5V to 5.5V for “L/M” versions; V
CC
= 2.7V to 3.6V for “T/S/R”
versions; and VCC = 2.1V to 2.75V for “Z” version (except where noted).
2. V
CC
(min) = 1.0V for T
A
= 0°C to +85°C.
3. WDI input is designed to be driven by a three-state output device. To float WDI, the “high-impedance mode” of the output device
must have a maximum leakage current of 10μA and a maximum output capacitance of 200pF. The output device must also be able
to source and sink at least 200μA when active.
4. WDI is internally serviced within the watchdog period if WDI is left unconnected.
5. The leakage current measured on the RST pin is tested with the reset asserted (output high impedance).
6. Contact local sales office for availability.
Reset Thresholds
V
RST(5)
Reset Threshold
STM6xxxL
25°C
4.561
4.630
4.699
V
–40 to 85°C
4.514
4.746
V
STM6xxxM
25°C
4.314
4.390
4.446
V
–40 to 85°C
4.270
4.490
V
STM6xxxT
25°C
3.040
3.080
3.110
V
–40 to 85°C
3.000
3.150
V
STM6xxxS
25°C
2.890
2.930
2.960
V
–40 to 85°C
2.857
3.000
V
STM6xxxR
25°C
2.590
2.630
2.660
V
–40 to 85°C
2.564
2.696
V
STM6xxxZ
(6)
25°C
2.280
2.320
2.350
V
–40 to 85°C
2.250
2.380
V
Reset Threshold
Hysteresis
L/M versions
10
mV
T/S/R/Z versions
5
mV
V
CC
to RST Delay
(V
RST
– V
CC
= 100mV,
V
CC
falling at 1mV/μs)
20
μs
t
rec
Reset Pulse Width
140
200
280
ms
Reset Threshold
Temperature Coefficient
40
ppm/
°C
Push-button Reset Input
t
MLMH
t
MR
MR Pulse Width
1
μs
t
MLRL
t
MRD
MR to RST Output Delay
500
ns
MR Glitch Immunity
100
ns
MR Pull-up Resistor
35
52
75
k
Watchdog Timer
t
WD
Watchdog Timeout
Period
1.12
1.60
2.24
s
WDI Pulse Width
50
ns
Sym
Alter-
native
Description
Test Condition
(1)
Min
Typ
Max
Unit
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| STM6821TWY6F | 功能描述:監(jiān)控電路 Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| STM6821TWY6F-CUT TAPE | 制造商:ST 功能描述:STM6821 Series 3.08 V 140 ms Supervisor with Watchdog Timer & Push-Button Reset |
| STM6822LWY6F | 功能描述:監(jiān)控電路 SUPERVISOR WATCHDOG RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| STM6822MWY6F | 功能描述:監(jiān)控電路 Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| STM6822RWY6F | 功能描述:監(jiān)控電路 Supervisor reset RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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