M41T81M6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M41T81M6

Serial access real-time clock with alarm

STMicroelectronics 

DC and AC parameters

M41T81

Table 13. AC characteristics

Sym

Parameter(1)

Min

Typ

Max Units

fSCL

tLOW

tHIGH

tR

tF

tHD:STA

SCL clock frequency

Clock low period

Clock high period

SDA and SCL rise time

SDA and SCL fall time

START condition hold time

(after this period the first clock pulse is

generated)

0

-

400 kHz

1.3

-

µs

600

-

ns

-

300

ns

-

300

ns

600

-

ns

START condition setup time

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

600

-

ns

tSU:DAT Data setup time

tHD:DAT(2) Data hold time

100

-

ns

0

-

µs

tSU:STO STOP condition setup time

600

-

ns

Time the bus must be free before a new

tBUF

transmission can start

1.3

-

µs

1. Valid for ambient operating temperature: TA = –40 to 85 °C; VCC = 2.0 to 5.5 V (except where noted).

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

edge of SCL.

24/29

Doc ID 7529 Rev 10

Share Link: