LH5P864N-80 Просмотр технического описания (PDF) - Sharp Electronics

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LH5P864N-80

CMOS 512K (64K × 8) Pseudo-Static RAM

Sharp Electronics 

LH5P864

CMOS 512K (64K × 8) Pseudo-Static RAM

CE1

VIH

(OR CE2) VIL

CE2

VIH

(OR CE1) VIL

A0 - A7

VIH

VIL

OE/RFSH

VIH

VIL

R/W

VIH

VIL

I/O0 - I/O7

VOH

VOL

NOTE: A8 - A14 Don't Care

tRC

tP

tCE

tP

tAS

tAH

ADDRESS INPUT

tOES

tRCS

tOEH

tRCH

HIGH-Z

Figure 7. CE Only Refresh Cycle

5P864-7

CE1

VIH

VIL

CE2

VIH

VIL

OE/RFSH

VIH

VIL

I/O0 - I/O7

VOH

VOL

NOTE: A0 - A14, R/W Don't Care

tRFD

tFC

tFAP

tFP

tFAP

tFCE

HIGH-Z

Figure 8. Auto Refresh Cycle

5P864-8

8

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