M41T62 datasheet(34/40 Pages) STMICROELECTRONICS

Nome de Peças	M41T62

Descrição Electrónicos	Serial Access Real-Time Clock with Alarms

PDF	40 Pages

Scroll/Zoom	100%

Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

Página de início	http://www.st.com

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DC and AC parameters

M41T62/63/64/65

34/40

Table 17.

AC characteristics

Sym

Parameter(1)

Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 1.3 to 4.4V (except where noted).

Min

Typ

Max

Units

fSCL

SCL clock frequency

400

kHz

tLOW

Clock low period

1.3

µs

tHIGH

Clock high period

600

SDA and SCL rise time

300

SDA and SCL fall time

300

tHD:STA

START condition hold time

(after this period the first clock pulse is generated)

600

tSU:STA

START condition setup time

(only relevant for a repeated start condition)

600

tSU:DAT

(2)

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

edge of SCL.

Data setup time

100

tHD:DAT

Data hold time

µs

tSU:STO

STOP condition setup time

600

tBUF

Time the bus must be free before a new

transmission can start

1.3

µs

trec

Watchdog output pulse width

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