M48T251VPM View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

M48T251VPM

5.0 or 3.3V, 4096K TIMEKEEPER® SRAM with PHANTOM

STMicroelectronics 

M48T251Y, M48T251V

Figure 13. Power Down/Up Mode AC Waveforms

VCC

tF

tR

VPFD (max)

VPFD (min)

VSO

tFB

tPD

tREC

CE

tDR

AI04236

Table 12. Power Down/Up Trip Points DC Characteristics

Symbol

Parameter(1)

Min

Max

Unit

tREC

VPFD (max) to CE low

1.5

2.5

ms

tF

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

300

µs

tFB

VPFD (min) to VSO VCC Fall Time

10

µs

tR

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

0

µs

tPD

CE High to Power-Fail

0

µs

tDR(2)

Expected Data Retention Time

10

Years

Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5V or 3.0 to 3.6V (except where noted).

2. At 25°C, VCC = 0V; the expected tDR is defined as cumulative time in the absence of VCC with the clock oscillator running.

20/24

Share Link: