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| DS1632 Datasheet, PDF (5/6 Pages) Dallas Semiconductor – PC Power-Fail and Reset Controller | |||
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AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
PBRST = VIL
tPB
tRPD
Reset Pulse Width
tRST
95
Reset Pulse Width
tRST
190
Reset Active on Power-Up
tRPU
95
Reset Active on Power-Up
tRPU
190
Reset Active on Power-Down
tRPD
9
Reset Active on Power-Down
tRPD
18
VCC Slew Rate Power-Down
tF
300
VCC Slew Rate Power-Down
tFB
10
VCC Slew Rate Power-Up
tR
10
TIMING DIAGRAM: PUSHBUTTON RESET
DS1632
(0°C to 70°C; VCC=5V ± 10%)
TYP MAX UNITS NOTES
ms
105
ms RD=GND
210
ms RD=VCC
105
ms RD=GND
210
ms RD=VCC
11
ms RD=GND
22
ms RD=VCC
µs
µs
µs
TIMING DIAGRAM: POWER-DOWN
5 of 6
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