M41T56MH6TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M41T56MH6TR

512 bit (64 bit x8) Serial Access TIMEKEEPER® SRAM

STMicroelectronics 

Figure 17. Power Down/Up Mode AC Waveforms

VCC

VPFD

VSO

tPD

tFB

SDA

SCL

M41T56

tRB

tREC

IBAT

DATA RETENTION TIME

AI00595

Table 9. Power Down/Up Mode AC Characteristics

Symbol

Parameter(1)

Min

Max

tPD

SCL and SDA at VIH before Power Down

0

tFB

VPFD (min) to VSS VCC Fall Time

300

tRB

VSS to VPFD (min) VCC Rise Time

100

tREC

SCL and SDA at VIH after Power Up

10

Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 4.5 to 5.5V (except where noted).

Table 10. Power Down/Up Trip Points DC Characteristics

Symbol

Parameter(1,2)

Min

Typ

Max

VPFD Power-fail Deselect Voltage

1.2 VBAT

1.25 VBAT

1.285 VBAT

VSO

Battery Back-up Switchover Voltage

VBAT

Note: 1. All voltages referenced to VSS.

2. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 4.5 to 5.5V (except where noted).

Unit

ns

µs

µs

µs

Unit

V

V

17/24

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