M41ST85WMX6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M41ST85WMX6

3.0/3.3V I²C combination serial RTC, NVRAM supervisor and microprocessor supervisor

STMicroelectronics 

M41ST85W

Figure 20. Power down/up mode AC waveforms

VCC

VPFD (max)

VPFD (min)

VSO

tF

tPD

PFO

tFB

tRB

tDR

DC and AC parameters

tR

trec

INPUTS

RECOGNIZED

RST

OUTPUTS

ECON

VALID

(PER CONTROL INPUT)

DON'T CARE

HIGH-Z

RECOGNIZED

VALID

(PER CONTROL INPUT)

AI03661

Table 13. Power down/up AC characteristics

Symbol

Parameter(1)

Min

Typ

Max

tF(2)

tFB(3)

tPD

tPFD

tR

tRB

trec(4)

VPFD(max) to VPFD(min) VCC Fall Time

VPFD(min) to VSS VCC Fall Time

EX at VIH before Power Down

PFI to PFO Propagation Delay

VPFD(min) to VPFD(max) VCC Rise Time

VSS to VPFD(min) VCC Rise Time

Power up Deselect Time

300

10

0

15

25

10

1

40

200

1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 3.6V (except where otherwise noted).

2. VPFD(max) to VPFD(min) fall time of less than tF may result in deselection/write protection not occurring until

200µs after VCC passes VPFD(min).

3. VPFD(min) to VSS fall time of less than tFB may cause corruption of RAM data.

4. Programmable (see Table 6 on page 28)

Unit

µs

µs

µs

µs

µs

µs

ms

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