DS2438Z View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

Manufacturer

DS2438Z

Smart Battery Monitor

Dallas Semiconductor -> Maxim Integrated 

DS2438

AC ELECTRICAL CHARACTERISTICS: NV MEMORY

(-40°C to +85°C; 2.4V ≤ VDD ≤ 10.0V)

PARAMETER

SYMBOL CONDITION MIN TYP MAX UNITS NOTES

NV Write Cycle Time

tWR

2

10

ms

EEPROM Writes (copy

scratchpad command)

NEEWR

-20ºC to +55ºC 50k

writes

EEPROM data retention

tEEDR

-20ºC to +55ºC 10

years

AC ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE

(-40°C to +85°C; 2.4V ≤ VDD ≤ 10.0V)

PARAMETER

SYMBOL CONDITION MIN TYP MAX UNITS NOTES

Time Slot

tSLOT

60

120

µs

Recovery Time

tREC

1

µs

Write 0 Low Time

tLOW0

60

120

µs

Write 1 Low Time

tLOW1

1

15

µs

Read Data Valid

tRDV

15

µs

Reset Time High

tRSTH

480

µs

Reset Time Low

tRSTL

480

980

µs

Presence Detect High

tPDH

15

60

µs

Presence Detect Low

tPDL

60

240

µs

DQ Capacitance

CDQ

25

pF

NOTES:

1. All voltages are referenced to GND.

2. Input load is to GND.

3. Current measurement accuracy is ±2 LSb or 1%, whichever is greater.

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