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TC1270ANLCVCTTR Datasheet(PDF) 5 Page - Microchip Technology

No. de pieza TC1270ANLCVCTTR
Descripción Electrónicos  Voltage Supervisor with Manual Reset Input
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC1270ANLCVCTTR Datasheet(HTML) 5 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS22035B-page 5
TC1270A/70AN/71A
1.1.2
TIMING DIAGRAMS AND SPECIFICATIONS
FIGURE 1-2:
MR PIN AND RESET PIN WAVEFORM
FIGURE 1-3:
DEVICE VOLTAGE AND RESET PIN (ACTIVE LOW) WAVEFORM
TABLE 1-1:
RESET AND DEVICE RESET TIMER REQUIREMENTS
Electrical Characteristics: Unless otherwise noted, VDD = 5V for L/M versions, VDD = 3.3V for T/S versions,
VDD = 3V for R version, TA = -40°C to +125°C. Typical values are at TA = +25°C.
Parameter
Sym
Min
Typ(1)
Max
Units
Test Conditions
V
DD to Reset Delay
tRD
—50
µs
VDD = VTRIP(MAX) to
VTRIP(MIN) –125 mV
Reset Active
Timeout
Period
TC127XAxBVyy (3)
tRST
1.09
2.19
4.38
ms
VDD = VTRIP(MAX)
TC127XAxCVyy (3)
17.5
35
70
ms
VDD = VTRIP(MAX)
TC127XAxVyy (3)
140
280
560
ms
VDD = VTRIP(MAX)
MR Minimum Pulse Width
tMR
10
µs
MR Noise Immunity
tMRNI
—0.1
µs
MR to Reset Propagation Delay
tMD
—0.2
µs
Note 1:
Unless otherwise stated, data in the Typical (“Typ”) column is at 5V, +25
°C.
2:
RST output for TC1270A, RST output for TC1271A.
3:
TC127XA refers to either the TC1270A, TC1270AN or TC1271A device. “x” indicated the selected Voltage
Trip Point, while “yy” indicates the package code.
MR
RST
tRST
tMR
RST
tMD
tMRNI
VTRIP(MAX)
VTRIP(MIN)
1V
VDD
VTRIP
tRST
RST(1)
RST
tRST
tRD
VDD < 1V is outside the device operating specification. The RST (or RST) output state is unknown while VDD < 1V.
Note 1:
The TC1270AN requires an external pull-up resistor.


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