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UPD44324184 fiches techniques PDF

NEC - (UPD44324xx4) 36M-BIT DDRII SRAM 4-WORD BURST OPERAT

Numéro de référence UPD44324184
Description (UPD44324xx4) 36M-BIT DDRII SRAM 4-WORD BURST OPERAT
Fabricant NEC 
Logo NEC 





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UPD44324184 fiche technique
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PRELIMINARY DATA SHEET
MOS INTEGRATED CIRCUIT
µPD44324084, 44324094, 44324184, 44324364
36M-BIT DDRII SRAM
4-WORD BURST OPERATION
Description
The µPD44324084 is a 4,194,304-word by 8-bit, the µPD44324094 is a 4,194,304-word by 9-bit, the µPD44324184 is a
2,097,152-word by 18-bit and the µPD44324364 is a 1,048,576-word by 36-bit synchronous double data rate static RAM
fabricated with advanced CMOS technology using full CMOS six-transistor memory cell.
The µPD44324084, µPD44324094, µPD44324184 and µPD44324364 integrate unique synchronous peripheral circuitry
and a burst counter. All input registers controlled by an input clock pair (K and /K) are latched on the positive edge of K
and /K.
These products are suitable for application which require synchronous operation, high speed, low voltage, high density
and wide bit configuration.
These products are packaged in 165-pin PLASTIC FBGA.
Features
1.8 ± 0.1 V power supply and HSTL I/O
DLL circuitry for wide output data valid window and future frequency scaling
Pipelined double data rate operation
Common data input/output bus
Four-tick burst for reduced address frequency
Two input clocks (K and /K) for precise DDR timing at clock rising edges only
Two output clocks (C and /C) for precise flight time
and clock skew matching-clock and data delivered together to receiving device
Internally self-timed write control
Clock-stop capability with µs restart
User programmable impedance output
Fast clock cycle time : 3.3 ns (300 MHz), 4.0 ns (250 MHz), 5.0 ns (200 MHz)
Simple control logic for easy depth expansion
JTAG boundary scan
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 products and/or types are available in every country. Please check with an NEC Electronics
sales representative for availability and additional information.
Document No. M16781EJ1V0DS00 (1st edition)
Date Published October 2004 NS CP(K)
Printed in Japan
The mark shows major revised points.
2003

PagesPages 32
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