DS1392 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

MFG CO.

DS1392

Low-Voltage SPI/3-Wire RTCs with Trickle Charger

Maxim Integrated 

DS1390–DS1394

Low-Voltage SPI/3-Wire RTCs

with Trickle Charger

Power-Up/Power-Down Characteristics

(TA = -40°C to +85°C) (Figures 5, 6)

PARAMETER

VCC Detect to Recognize Inputs

(VCC Rising)

VCC Fall Time; VPF(MAX) to

VPF(MIN)

VCC Rise Time; VPF(MIN) to

VPF(MAX)

SYMBOL

tRST (Note 17)

tF

tR

CONDITIONS

MIN TYP MAX UNITS

160 200

ms

300

µs

0

µs

VCC

VPF(MAX)

VPF(MIN)

VPF

tF

RST

INPUTS

RECOGNIZED

OUTPUTS

VALID

Figure 5. Power-Up/Down Timing

RST

PBDB

Figure 6. Pushbutton Reset Timing

VPF

tR

tRPU

tRST

DON'T CARE

HIGH IMPEDANCE

RECOGNIZED

VALID

tRST

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