M41T83SQA6E View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M41T83SQA6E

Serial RTC with battery switchover

STMicroelectronics 

M41T82 M41T83

DC and ac parameters

Figure 24. Power down/up mode ac waveforms

VCC

VSO

tPD

SDA

SCL

DON'T CARE

trec

AI00596

Table 23. Power down/up trip points dc characteristics

Sym

Parameter(1) (2) (1,2)

Min Typ Max Unit

S

2.85 2.93 3.0

V

VRST Reset threshold voltage

R

2.55 2.63 2.7

V

Z

2.25 2.32 2.38

V

Battery back-up switchover

VSO

Hysteresis

VRST

V

25

mV

Reset Pulse width (VCC Rising)

140

280 ms

trec VCC to Reset Delay, VCC = (VRST + 100mV), falling to

(VRST – 100mV; for VCC slew rate of 10mV/µs

2.5

µs

1. All voltages referenced to VSS.

2. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.38 to 5.5V (except where noted).

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