8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE
DATA SHEET
MOS INTEGRATED CIRCUIT
MC-458CA727
8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
5
Des...
Description
DATA SHEET
MOS INTEGRATED CIRCUIT
MC-458CA727
8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
5
Description
The MC-458CA727EFA and MC-458CA727PFA are 8,388,608 words by 72 bits synchronous dynamic RAM module on which 5 pieces of 128M SDRAM : µPD45128163 are assembled. This module provides high density and large quantities of memory in a small space without utilizing the surfacemounting technology on the printed circuit board. Decoupling capacitors are mounted on power supply line for noise reduction.
Features
8,388,608 words by 72 bits organization (ECC Type) Clock frequency and access time from CLK
Part number /CAS latency Clock frequency (MAX.) MC-458CA727EFA-A75 CL = 3 CL = 2 MC-458CA727PFA-A75 CL = 3 CL = 2 133 MHz 100 MHz 133 MHz 100 MHz Access time from CLK (MAX.) 5.4 ns 6.0 ns 5.4 ns 6.0 ns
5 5 5 Pulsed interface
Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge 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...
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