M48Z128CS datasheet(6/17 Pages) STMICROELECTRONICS

Numer części	M48Z128CS

Szczegółowy opis	1 Mbit 128Kb x8 ZEROPOWER SRAM

PDF	17 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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6 / 17 page

M48Z128, M48Z128Y

6/17

Table 8. Power Down/Up AC Characteristics

(TA = 0 to 70 °C)

Note: 1. VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring until 200µs after VCC pass-

es VPFD (min).

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

Symbol

Parameter

Min

Max

Unit

(1)

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

300

µs

tFB

(2)

VPFD (min) to VSO VCC Fall Time

µs

tWP

Write Protect Time from VCC =VPFD

150

µs

VSO to VPFD (max) VCC Rise Time

µs

tER

E Recovery Time

120

Figure 6. Power Down/Up Mode AC Waveforms

AI01031

VCC

(PER CONTROL INPUT)

OUTPUTS

DON’T CARE

HIGH-Z

tFB

tWP

tDR

VALID

(PER CONTROL INPUT)

RECOGNIZED

VPFD (max)

VPFD (min)

VSO

tER

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