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TPS3305-18D Datasheet(PDF) 8 Page - Texas Instruments

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No. de Pieza. TPS3305-18D
Descripción  DUAL PROCESSOR SUPERVISORS
Descarga  13 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS3305-18D Datasheet(HTML) 8 Page - Texas Instruments

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TPS3305-18, TPS3305-25, TPS3305-33
DUAL PROCESSOR SUPERVISORS
SLVS198 – DECEMBER 1998
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements at VDD = 2.7 V to 6 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SENSEn
VSENSEnL = VIT– –0.2 V,
VSENSEnH = VIT+ +0.2 V
6
µs
tw
Pulse width
MR
VIH =07 × VDD
VIL =0 3 × VDD
100
ns
WDI
VIH = 0.7 × VDD,
VIL = 0.3 × VDD
100
ns
switching characteristics at VDD = 2.7 V to 6 V, RL = 1 MΩ, CL = 50 pF, TA = 25°C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tt(out)
Watchdog time out
VI(SENSEn) ≥ VIT+ + 0.2 V,
MR
≥ 0.7 × VDD, See timing diagram
1.1
1.6
2.3
s
td
Delay time
VI(SENSEn) ≥ VIT+ + 0.2 V,
MR
≥ 0.7 × VDD, See timing diagram
140
200
280
ms
tPHL
Propagation (delay) time,
high-to-low level output
MR to RESET,
MR to RESET
VI(SENSEn) ≥ VIT+ +0.2 V,
200
500
ns
tPLH
Propagation (delay) time,
low-to-high level output
MR to RESET,
MR to RESET
I(SENSEn)
IT+
VIH = 0.7 × VDD,VIL = 0.3 × VDD
200
500
ns
tPHL
Propagation (delay) time,
high-to-low level output
SENSEn to RESET,
SENSEn to RESET
VIH = VIT+ +0.2 V, VIL = VIT– –0.2 V,
1
5
µs
tPLH
Propagation (delay) time,
low-to-high level output
SENSEn to RESET,
SENSEn to RESET
IH
IT+
IL
IT
MR
≥ 0.7 × VDD
1
5
µs


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