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  NEC Electronic Components Datasheet  

UPD4564163G5 Datasheet

64M Bit SDRAM / 4 Bank

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UPD4564163G5 pdf
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD4564441, 4564841, 4564163
64M-bit Synchronous DRAM
4-bank, LVTTL
Description
The µPD4564441, 4564841, 4564163 are high-speed 67,108,864-bit synchronous dynamic random-access
memories, organized as 4,194,304 × 4 × 4, 2,097,152 × 8 × 4, 1,048,576 ×16 × 4 (word × bit × bank), respectively.
The synchronous DRAMs achieved high-speed data transfer using the pipeline architecture.
All inputs and outputs are synchronized with the positive edge of the clock.
The synchronous DRAMs are compatible with Low Voltage TTL (LVTTL).
These products are packaged in 54-pin TSOP (II).
Features
Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge
Pulsed interface
Possible to assert random column address in every cycle
Quad internal banks controlled by A12 and A13 (Bank Select)
Byte control (×16) by LDQM and UDQM
Programmable Wrap sequence (Sequential / Interleave)
Programmable burst length (1, 2, 4, 8 and full page)
Programmable /CAS latency (2 and 3)
Automatic precharge and controlled precharge
CBR (auto) refresh and self refresh
• ×4, ×8, ×16 organization
Single 3.3 V ± 0.3 V power supply
LVTTL compatible inputs and outputs
4,096 refresh cycles / 64 ms
Burst termination by Burst stop command and Precharge command
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. M12621EJCV0DS00 (12th edition)
Date Published January 2000 NS CP (K)
Printed in Japan
The mark shows major revised points.
©
1997


  NEC Electronic Components Datasheet  

UPD4564163G5 Datasheet

64M Bit SDRAM / 4 Bank

No Preview Available !

UPD4564163G5 pdf
5 Ordering Information
Part number
µPD4564441G5-A80-9JF
µPD4564441G5-A10-9JF
µPD4564441G5-A10B-9JF
µPD4564841G5-A80-9JF
µPD4564841G5-A10-9JF
µPD4564841G5-A10B-9JF
µPD4564163G5-A80-9JF
µPD4564163G5-A10-9JF
µPD4564163G5-A10B-9JF
µPD4564441, 4564841, 4564163
Organization
(word × bit × bank)
4M × 4 × 4
2M × 8 × 4
1M × 16 × 4
Clock frequency
MHz (MAX.)
125
100
100
125
100
100
125
100
100
Package
54-pin Plastic TSOP (II)
(10.16mm (400))
2 Data Sheet M12621EJCV0DS00


Part Number UPD4564163G5
Description 64M Bit SDRAM / 4 Bank
Maker NEC
Total Page 30 Pages
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