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參數資料
| 型號： | FM1233D |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | CABLE ASSEM 2MM 20PS SGL END 12,1 |
| 中文描述： | 3引腳レ?監電路 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 31K |
| 代理商： | FM1233D |
2002 Fairchild Semiconductor Corporation
FM1233D Rev. D
1
www.fairchildsemi.com
February 2003
F
FM1233D
3-Pin μC Supervisor Circuit
General Description
The FM1233D is a supervisor circuit that monitors a micropro-
cessor power supply or other system voltage and issues a reset
pulse when a fault condition exists. Several different threshold
voltages are offered to accommodate 5V systems with different
tolerances.
The device features a precision temperature-compensated volt-
age reference and comparator. When V
voltage, a RESET pulse is issued, holding the output in the
active state. When power rises above V
approximately 250 ms to allow the system clock and other cir-
cuits to stabilize. The reset output of FM1233D is of open-drain
active low type.
CC
falls to the threshold
TH
, the reset remains for
Features
I
Precision monitoring of 5V and lower voltage microprocessor
systems
V
TH
values of 4.62V, 4.38V and 4.12V
Automatic restart of microprocessor after power failure
140ms (min) power-on RESET delay (typ.: 256ms)
Internal 5k
pull-up resistor
Other reset choices available: 32 to 128ms
Operating Temperature -40°C to +105°C
SOT23-3 package
I
I
I
I
I
I
I
Typical Operating Circuit
Connection Diagram
SOT23-3 Package
1
FM1233D
Controller
2
3
VCC
GND
RESET
GND
VCC
RESET
1
FM1233D
2
3
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| FM1233E | CABLE ASSEM 2MM 40POS F-F 2,1 |
| FM130-L | CABLE ASSEM 2MM 40PS SGL END 12,1 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FM1233DDS3X | 功能描述:監控電路 4.38V Gen Circuit Precision Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關: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 |
| FM1233DES3X | 功能描述:監控電路 4.12V Gen Circuit Precision Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關: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 |
| FM1233DFS3X | 功能描述:監控電路 4.62V Gen Circuit Precision Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關: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 |
| FM1233E | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-Pin レC Supervisor Circuit |
| FM1233ECS3X | 功能描述:監控電路 2.88V Gen Circuit active Low Precision RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關: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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