MC-4516DA727 Datasheet, PDF (1/16 Pages) NEC – 16M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE

DATA SHEET
MOS INTEGRATED CIRCUIT
MC-4516DA727
16M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE
REGISTERED TYPE
Description
The MC-4516DA727 is a 16,777,216 words by 72 bits synchronous dynamic RAM module on which 9 pieces of
128M SDRAM: µPD45128841 are assembled.
These modules provide high density and large quantities of memory in a small space without utilizing the surface-
mounting technology on the printed circuit board.
Decoupling capacitors are mounted on power supply line for noise reduction.
Features
• 16,777,216 words by 72 bits organization (ECC type)
• Clock frequency and access time from CLK.
Part number
/CAS latency
Clock frequency
(MAX.)
MC-4516DA727EFA-A75
CL = 3
133 MHz
5
5
MC-4516DA727PFA-A75
CL = 2
CL = 3
100 MHz
133 MHz
CL = 2
100 MHz
• 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 BA0 and BA1 (Bank Select)
• Programmable burst-length (1, 2, 4, 8 and Full Page)
• Programmable wrap sequence (Sequential / Interleave)
5 ^{• Programmable /CAS latency (2, 3)}
• Automatic precharge and controlled precharge
• CBR (Auto) refresh and self refresh
• All DQs have 10 Ω ±10 % of series resistor
• Single 3.3 V ±0.3 V power supply
• LVTTL compatible
• 4,096 refresh cycles/64 ms
• Burst termination by Burst Stop command and Precharge command
• 168-pin dual in-line memory module (Pin pitch = 1.27 mm)
• Registered type
• Serial PD
Access time from CLK
(MAX.)
5.4 ns
6.0 ns
5.4 ns
6.0 ns
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. M14082EJ4V0DS00 (4th edition) _{The mark 5 shows major revised points.}
©
Date Published February 2000 NS CP(K)
Printed in Japan
1999