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DS1707ESA Datasheet, PDF (8/10 Pages) Maxim Integrated Products – 3.3 and 5.0-Volt MicroMonitor
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AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
PBRST = VIL
tPB
Reset Active Time
tRST
VCC Detect to RST and RST
tRPD
VCC Slew Rate
tF
VCC Detect to RST and RST
tRPU
VCC Slew Rate
PBRST Stable Low to RST and RST
tR
tPDLY
VIN Detect to NMI
tIPD
DS1707/DS1708
(-40°C to +85°C; VCC=1.2V to 5.5V)
MIN TYP MAX UNITS NOTES
150
ns
130 205
285
ms
5
8
ms
7
20
ms
130 205
285
ms
6
0
ns
250
ns
5
8
ms
7
NOTES:
1. All voltages are referenced to ground.
2. PBRST is internally pulled up to VCC with an internal impedance of 40 kW typical.
3. VCC ≥ 2.4V
4. VCC < 2.4V
5. Measured with outputs open and all inputs at VCC or ground.
6. tR = 5 ms
7. Noise immunity - pulses < 2 ms at VCCTP minimum will not cause a reset.
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