HM538254BTT-7 datasheet(2/56 Pages) ELPIDA

Part #	HM538254BTT-7

Description	2 M VRAM (256-kword x 8-bit) Hyper Page Mode (HM538254B)

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Manufacturer	ELPIDA [Elpida Memory]

Direct Link	http://www.elpida.com/en

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HM538253B/HM538254B Series

Data Sheet E0163H10

2

• Fast page mode capability (HM538253B)

 Cycle time:

45 ns/50 ns/55 ns

 Power RAM:

605 mW/578 mW/550 mW

• Hyper page mode capability (HM538254B)

 Cycle time:

35 ns/40 ns/45 ns

 Power RAM:

715 mW/660 mW/605 mW

• Mask write mode capability

• Bidirectional data transfer cycle between RAM and SAM capability

• Split transfer cycle capability

• Block write mode capability

• Flash write mode capability

• 3 variations of refresh (8 ms/512 cycles)

 RAS-only refresh

 CAS-before-RAS refresh

 Hidden refresh

• TTL compatible

Ordering Information

Type No.

Access Time

Package

HM538253BJ-7

HM538253BJ-8

HM538253BJ-10

70 ns

80 ns

100 ns

400-mil, 40-pin plastic SOJ (CP-40D)

HM538254BJ-7

HM538254BJ-8

HM538254BJ-10

70 ns

80 ns

100 ns

HM538253BTT-7

HM538253BTT-8

HM538253BTT-10

70 ns

80 ns

100 ns

44-pin thin small outline package (TTP-44/40DA)

HM538254BTT-7

HM538254BTT-8

HM538254BTT-10

70 ns

80 ns

100 ns

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HM538254BTT-7 Datasheet(PDF) 2 Page - Elpida Memory

HM538254BTT-7 Datasheet(HTML) 2 Page - Elpida Memory

Similar Part No. - HM538254BTT-7

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