DocID007529 Rev 11

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M41T81

DC and AC parameters

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Figure 16. Bus timing requirements sequence

Table 11. Power down/up AC characteristics

Symbol

Parameter(1)(2)

1. VCC fall time should not exceed 5 mV/μs.

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

Min

Typ

Max

Unit

tPD

SCL and SDA at VIH before power-down

0

-

-

nS

trec

SCL and SDA at VIH after power-up

10

-

-

μS

Table 12. Power down/up trip points DC characteristics

Sym

Parameter(1)(2)

1. All voltages referenced to VSS.

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

Min

Typ

Max

Unit

VSO Battery backup switchover voltage

VBAT – 0.80 VBAT – 0.50 VBAT – 0.30

V

AI00589

SDA

P

tSU:STO

tSU:STA

tHD:STA

SR

SCL

tSU:DAT

tF

tHD:DAT

tR

tHIGH

tLOW

tHD:STA

tBUF

S

P