DS1254 View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

Manufacturer

DS1254

2M x 8 NV SRAM with Phantom Clock

Dallas Semiconductor -> Maxim Integrated 

Figure 10. Battery Warning Detection (Note 3)

VCC

VBAT

BATTERY TEST

ACTIVE

BW

tBPU

tBTPW

2.6V

tBTC

tBW

DS1254

BATTERY WARNING TIMING

(VCC = 5.0V ±10%, TA = 0°C to +70°C)

PARAMETER

Battery Test Cycle

Battery Test Pulse Width

Battery Test to BW Active

VCC Valid to BW Valid

SYMBOL

tBTC

tBTPW

tBW

tBPU

MIN

TYP

24

MAX

1

1

1

UNITS

hour

seconds

seconds

seconds

NOTES

3

AC TEST CONDITIONS

Output Load:

100pF + 1 TTL Gate

Input Pulse Levels: 0V to 3.0V

Timing Measurement Reference Levels:

Input: 1.5V

Output: 1.5V

Input Pulse Rise and Fall Times: 5ns

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