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MC-458CB646EFB-A10 Datasheet(PDF) 8 Page - NEC

Part # MC-458CB646EFB-A10
Description  8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

MC-458CB646EFB-A10 Datasheet(HTML) 8 Page - NEC

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Data Sheet M13049EJ7V0DS00
8
MC-458CB646
Synchronous Characteristics
Parameter
Symbol
-A 80
-A 10
Unit
Note
MIN.
MAX.
MIN.
MAX.
Clock cycle time
/CAS latency = 3
tCK3
8
(125 MHz)
10
(100 MHz)
ns
/CAS latency = 2
tCK2
10
(100 MHz)
13
(77 MHz)
ns
Access time from CLK
/CAS latency = 3
tAC3
66
ns
1
/CAS latency = 2
tAC2
67
ns
1
CLK high level width
tCH
33
ns
CLK low level width
tCL
33
ns
Data-out hold time
tOH
33
ns
1
Data-out low-impedance time
tLZ
00
ns
Data-out high-impedance time
/CAS latency = 3
tHZ3
3636
ns
/CAS latency = 2
tHZ2
3637
ns
Data-in setup time
tDS
22
ns
Data-in hold time
tDH
11
ns
Address setup time
tAS
22
ns
Address hold time
tAH
11
ns
CKE setup time
tCKS
22
ns
CKE hold time
tCKH
11
ns
CKE setup time (Power down exit)
tCKSP
22
ns
Command (/CS0, /CS2, /RAS, /CAS, /WE,
tCMS
22
ns
DQMB0 - DQMB7) setup time
Command (/CS0, /CS2, /RAS, /CAS, /WE,
tCMH
11
ns
DQMB0 - DQMB7) hold time
Note 1. Output load
Output
Z = 50
50 pF
Remark These specifications are applied to the monolithic device.


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