The MC-4532CC727EF and MC-4532CC727PF are 33,554,432 words by 72 bits synchronous dynamic RAM
module on which 18 pieces of 128M SDRAM: µPD45128841 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
• 33,554,432 words by 72 bits organization (ECC type)
• Clock frequency and access time from CLK.
Part number/CAS latencyClock frequency
(MAX.)
MC-4532CC727EF-A75CL = 3133 MHz5.4 ns
★
★
MC-4532CC727PF-A75CL = 3133 MHz5.4 ns
★
• 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)
The value of all resistors is 10 Ω except CKE1 and WP.
2.
D0 - D17:
µ
PD45128841 (4M words × 8 bits × 4 banks)
Data Sheet M14277EJ2V0DS00
/RAS: D0 - D17
/CAS: D0 - D17
CKE: D0 - D8
CLK3
CKE1
CLK: D3, D4, D7, D8
3.3 pF
CLK: D12, D13, D16, D17
3.3 pF
10 kΩ
CKE: D9-D17
MC-4532CC727
Electrical Specifications
• All voltages are referenced to VSS (GND).
µ
• After power up, wait more than 100
device operation is achieved.
Absolute Maximum Ratings
ParameterSymbolConditionRatingUnit
Voltage on power supply pin relative to GNDV
Voltage on input pin relative to GNDV
Short circuit output c urrentI
Power dissipationP
Operating ambient tem peratureT
Storage temperatureT
Caution Exposing the device to stress above those listed in Absolute Maximum Ratings could cause
permanent damage. The device is not meant to be operated under conditions outside the limits
described in the operational section of this specification. Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.
s and then, execute power on sequence and CBR (Auto) refresh before proper
CC
T
O
D
A
stg
–0.5 to +4.6V
–0.5 to +4.6V
50mA
18W
0 to 70
–55 to +125
C
°
C
°
Recommended Operating Conditions
ParameterSymbolConditionMIN.TYP.MAX.Unit
Supply voltageV
High level input voltageV
Low level input voltageV
Operating ambient tem peratureT