V53C8256HK45 Просмотр технического описания (PDF) - Mosel Vitelic Corporation

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V53C8256HK45

ULTRA-HIGH SPEED, 256K x 8 FAST PAGE MODE CMOS DYNAMIC RAM

Mosel Vitelic Corporation  

MOSEL VITELIC

V53C8256H

Waveforms of Fast Page Mode Read-Write Cycle

VIH

RAS

VIL

V

IH

CAS

VIL

V

ADDRESS IH

VIL

tRAS (1)

tRCD (6)

t CSH (4)

tPCM (50)

t RAD (24)

tCAS (5)

tRAH (9)

tASC (10)

tASR (8)

tASC (10)

tCAH (11)

ROW

ADD

COLUMN

ADDRESS

tCP(43)

tCAS (5)

COLUMN

ADDRESS

tASC (10)

tCAH (11)

tRP (3)

tRSH (W)(25)

tCRP (13)

tCAS (5)

tCAR (44)

t CAH (11)

COLUMN

ADDRESS

V

IH

WE VIL

V

IH

OE VIL

VI/OH

I/O

VI/OL

t RCS (7)

tRWD (39)

t CWD (38)

tCAA (20)

t OAC (17)

tAWD (41)

tCWD (38)

t CWL (26)

tAWD (41)

t WP(29)

tOAC (17)

t CWL (26)

t CWD (38)

tRWL(31)

tCWL (26)

tAWD (41)

tWP (29)

tOAC (17)

tWP (29)

tOED (35)

tCAC (18)

tRAC (19)

tCAP (45)

tCAA (20)

tOED (35)

tCAC (18)

tHZ (22)

tDH (33)

tDS (32)

tCAP (45)

tCAA (20)

tHZ (22)

tDH (33)

tDS (32)

tOED (35)

tCAC (18)

tHZ (22)

tDH (33)

tDS (32)

OUT

IN

OUT

IN

OUT

IN

tLZ (21)

tLZ (21)

tLZ (21)

8256H-12

Waveforms of RAS Only Refresh Cycle

RAS V IH

V IL

CAS V IH

V IL

ADDRESS V IH

V IL

t CRP (13)

t ASR (8)

t RAH (9)

ROWADDR

NOTE: WE, OE = Don’t care

t RC (2)

t RAS (1)

t RP (3)

8256H-13

V53C8256H Rev. 1.2 July 1997

Don’t Care

Undefined

11

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