参数资料
型号: TC1270AMVRCTR
厂商: Microchip Technology
文件页数: 6/48页
文件大小: 0K
描述: IC RESET MONITOR 4.38V SOT143-4
标准包装: 3,000
类型: 简单复位/加电复位
监视电压数目: 1
输出: 推挽式,图腾柱
复位: 低有效
复位超时: 最小为 140 ms
电压 - 阀值: 4.38V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: TO-253-4,TO-253AA
供应商设备封装: SOT-143
包装: 带卷 (TR)
TC1270A/70AN/71A
TIMING DIAGRAMS AND SPECIFICATIONS
MR Pin and Reset Pin Waveform
MR
RST
t MRNI
t MR
t MD
t RST
RST
Device Voltage and Reset Pin (Active Low) Waveform
V TRIP
V TRIP(MIN)
V TRIP(MAX)
V DD
1V
t RST
t RD
t RST
RST (1)
RST
V DD < 1V is outside the device operating specification. The RST (or RST) output state is unknown while V DD < 1V.
Note 1:
The TC1270AN requires an external pull-up resistor.
Reset and Device Reset Timer Requirements
Electrical Characteristics: Unless otherwise noted, V DD = 5V for L/M versions, V DD = 3.3V for T/S versions,
V DD = 3V for R version, T A = -40°C to +125°C. Typical values are at T A = +25°C.
Parameter
V DD to Reset Delay
Sym
t RD
Min
Typ ( 1 )
50
Max
Units
μs
Test Conditions
V DD = V TRIP(MAX) to
V TRIP(MIN) –125 mV
TC127XAxVyy
Reset Active
Time Out
Period
TC127XAx B Vyy ( 3 )
TC127XAx A Vyy ( 3 )
( 3 )
t RST
1.09
17.5
140
2.19
35
280
4.38
70
560
ms
ms
ms
V DD = V TRIP(MAX)
V DD = V TRIP(MAX)
V DD = V TRIP(MAX)
MR Minimum Pulse Width
MR Noise Immunity
MR to Reset Propagation Delay
t MR
t MRNI
t MD
10
0.1
0.2
μs
μs
μs
Note 1:
2:
3:
Unless otherwise stated, data in the Typical (“Typ”) column is at 5V, +25 ? C.
RST output for TC1270A, RST output for TC1271A.
TC127XA refers to the TC1270A, TC1270AN or TC1271A device.
“x” indicates the selected voltage trip point, while “yy” indicates the package code.
DS22035D-page 6
? 2007-2011 Microchip Technology Inc.
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