IC41C44054 Datasheet, PDF (7/18 Pages) Integrated Circuit Solution Inc – 4Mx4 bit Dynamic RAM with Fast Page Mode

IC41C4405x and IC41LV4405x Series
AC CHARACTERISTICS^{(1,2,3,4,5,6)}
(Recommended Operating Conditions unless otherwise noted.)
Symbol
tRC
tRAC
tCAC
tAA
tRAS
tRP
tCAS
tCP
tCSH
tRCD
tASR
tRAH
tASC
tCAH
tAR
tRAD
tRAL
tRPC
tRSH
tRHCP
tCLZ
tCRP
tOD
tOE
tOED
tOEHC
tOEP
tOES
tRCS
tRRH
tRCH
tWCH
tWCR
tWP
tWPZ
tRWL
tCWL
tWCS
tDHR
Parameter
Random READ or WRITE Cycle Time
Access Time from RAS^{(6, 7)}
Access Time from CAS^{(6, 8, 15)}
Access Time from Column-Address⁽⁶⁾
RAS Pulse Width
RAS Precharge Time
CAS Pulse Width⁽²³⁾
CAS Precharge Time⁽⁹⁾
CAS Hold Time ⁽²¹⁾
RAS to CAS Delay Time^{(10, 20)}
Row-Address Setup Time
Row-Address Hold Time
Column-Address Setup Time⁽²⁰⁾
Column-Address Hold Time⁽²⁰⁾
Column-Address Hold Time
(referenced to RAS)
RAS to Column-Address Delay Time⁽¹¹⁾
Column-Address to RAS Lead Time
RAS to CAS Precharge Time
RAS Hold Time
RAS Hold Time from CAS Precharge
CAS to Output in Low-Z^{(15, 24)}
CAS to RAS Precharge Time⁽²¹⁾
Output Disable Time^{(19, 24)}
Output Enable Time^{(15, 16)}
Output Enable Data Delay (Write)
OE HIGH Hold Time from CAS HIGH
OE HIGH Pulse Width
OE LOW to CAS HIGH Setup Time
Read Command Setup Time^{(17, 20)}
Read Command Hold Time
(referenced to RAS)⁽¹²⁾
Read Command Hold Time
(referenced to CAS)^{(12, 17, 21)}
Write Command Hold Time⁽¹⁷⁾
Write Command Hold Time
(referenced to RAS)⁽¹⁷⁾
Write Command Pulse Width⁽¹⁷⁾
WE Pulse Widths to Disable Outputs
Write Command to RAS Lead Time⁽¹⁷⁾
Write Command to CAS Lead Time^{(17, 21)}
Write Command Setup Time^{(14, 17, 20)}
Data-in Hold Time (referenced to RAS)
-50
Min. Max.
84
−
−
50
−
13
−
25
50 10K
30
−
8 10K
9
−
38
−
12 37
0
−
8
−
0
−
8
−
30
−
10 25
25
−
5
−
8
−
30
−
0
−
5
−
3
15
−
12
12
−
5
−
10
−
5
−
0
−
0
−
0
−
8
−
40
−
8
−
7
−
13
−
8
−
0
−
39
−
Integrated Circuit Solution Inc.
DR013-0B 10/17/2002
-60
Min. Max.
104 −
−
60
−
15
−
30
60 10K
40
−
10 10K
9
−
40
−
14 45
0
−
10
−
0
−
10
−
40
−
12 30
30
−
5
−
10
−
35
−
0
−
5
−
3
15
−
15
15
−
5
−
10
−
5
−
0
−
0
−
0
−
10
−
50
−
10
−
7
−
15
−
10
−
0
−
39
−
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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