M41T94_06 datasheet(15/40 Pages) STMICROELECTRONICS

Part #	M41T94

Description	Serial Real Time Clock with 44Bytes NVRAM and Reset

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M41T94

Operation

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Table 3.

AC characteristics

Symbol

Parameter(1)

1.

Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5V (except where noted).

Min

Max

Unit

fSCL

Serial clock input frequency

DC

2

MHz

tCH

(2)

2.

tCH + tCL ≥ 1/fSCL

Clock high

200

ns

tCHCL

(3)

3.

Value guaranteed by design, not 100% tested in production.

Clock transition (fall time)

1

µs

tCHDX

Serial clock input high to input data transition

50

ns

tCHEH

Serial clock input high to Chip Enable high

200

ns

tCL

(2)

Clock low

200

ns

tCLCH

(3)

Clock transition (rise time)

1

µs

tCLQV

Serial clock input low to output valid

150

ns

tCLQX

Serial clock input low to output data transition

0

ns

tDHDL

(3)

Input data transition (fall time)

1

µs

tDLDH

(3)

Input data transition (rise time)

1

µs

tDVCH

Input data to serial clock input high

40

ns

tEHCH

Chip Enable high to serial clock input high

200

ns

tEHEL

Chip Enable high to Chip Enable low

200

ns

tEHQZ

(3)

Chip Enable high to output high-z

250

ns

tELCH

Chip Enable low to serial clock input high

200

ns

tQHQL

(3)

Output data transition (fall time)

100

ns

tQLQH

(3)

Output data transition (rise time)

100

ns

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M41T94 Datasheet(PDF) 15 Page - STMicroelectronics

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