M41T81M6(2006) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M41T81M6
(Rev.:2006)

Serial access Real-Time Clock with alarm

STMicroelectronics 

M41T81

DC and AC parameters

Table 13. AC characteristics

Sym

Parameter(1)

Min

Typ

fSCL SCL clock frequency

0

tLOW Clock low period

1.3

tHIGH Clock high period

600

tR

SDA and SCL rise time

tF

SDA and SCL fall time

START condition hold time

tHD:STA (after this period the first clock pulse is

600

generated)

START condition setup time

tSU:STA (only relevant for a repeated start condition)

600

tSU:DAT Data setup time

100

tHD:DAT(2) Data hold time

0

tSU:STO STOP condition setup time

600

Time the bus must be free before a new

tBUF

transmission can start

1.3

1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.0 to 5.5V (except where noted).

2. Transmitter must internally provide a hold time to bridge the undefined region (300ns max) of the falling edge of SCL.

Max

400

300

300

Units

kHz

µs

ns

ns

ns

ns

ns

ns

µs

ns

µs

25/30

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