V53C16256SH Ver la hoja de datos (PDF) - Mosel Vitelic, Corp

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V53C16256SH

256K X 16 FAST PAGE MODE CMOS DYNAMIC RAM WITH SELF REFRESH

Mosel Vitelic, Corp 

MOSEL VITELIC

Waveforms of CAS-before-RAS Refresh Counter Test Cycle

RAS VIH

V IL

UCAS, LCAS VIH

V IL

t CHR (49)

t CSR (47)

tRAS (1)

t CP(43)

tRSH (W)(25)

tCAS (5)

ADDRESS VIH

V IL

READ CYCLE

WE VIH

V IL

OE VIH

V IL

I/O VIH

V IL

WRITE CYCLE

WE VIH

V IL

t RCS (7)

tWCS (27)

tROH (16)

t OAC (17)

t LZ (21)

t RWL (31)

tCWL (26)

t WCH (28)

DOUT

OE VIH

V IL

I/O VIH

V IL

tDS (32)

tDH (33)

D IN

V53C16256SH

t RP (3)

t RRH (15)

t RCH (14)

t HZ (22)

t HZ (22)

16256L-13

Waveforms of CAS-before-RAS Refresh Cycle

V IH

RAS

V IL

V IH

UCAS, LCAS

V IL

I/O V OH

V OL

t RP (3)

t RPC (48)

t CP (43)

t HZ (22)

t RC (2)

t RAS (1)

t CSR (47)

t CHR (49)

NOTE: WE, OE, A 0 –A 8 = Don’t care

t RP (3)

16256L-14

V53C16256SH Rev. 0.1 December 1998

13

Don’t Care

Undefined

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