IC41C16257 Ver la hoja de datos (PDF) - Integrated Circuit Solution Inc
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IC41C16257 Datasheet PDF : 20 Pages
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IC41C16257/IC41C16257S
IC41LV16257/IC41LV16257S
AC CHARACTERISTICS(1,2,3,4,5,6)
(Recommended Operating Conditions unless otherwise noted.)
Symbol Parameter
tRC
Random READ or WRITE Cycle Time
tRAC
Access Time from RAS(6, 7)
tCAC
Access Time from CAS(6, 8, 15)
tAA
Access Time from Column-Address(6)
tRAS
RAS Pulse Width
tRP
RAS Precharge Time
tCAS
CAS Pulse Width(26)
tCP
CAS Precharge Time(9, 25)
tCSH
CAS Hold Time (21)
tRCD
RAS to CAS Delay Time(10, 20)
tASR
Row-Address Setup Time
tRAH
Row-Address Hold Time
tASC
Column-Address Setup Time(20)
tCAH
Column-Address Hold Time(20)
tAR
Column-Address Hold Time
(referenced to RAS)
tRAD
RAS to Column-Address Delay Time(11)
tRAL
Column-Address to RAS Lead Time
tRPC
RAS to CAS Precharge Time
tRSH
RAS Hold Time(27)
tCLZ
CAS to Output in Low-Z(15, 29)
tCRP
CAS to RAS Precharge Time(21)
tOD
Output Disable Time(19, 28, 29)
tOE
Output Enable Time(15, 16)
tOES
OE LOW to CAS HIGH Setup Time
tRCS
Read Command Setup Time(17, 20)
tRRH Read Command Hold Time
(referenced to RAS)(12)
tRCH Read Command Hold Time
(referenced to CAS)(12, 17, 21)
tWCH
Write Command Hold Time(17, 27)
tWCR Write Command Hold Time
(referenced to RAS)(17)
tWP
Write Command Pulse Width(17)
tRWL
Write Command to RAS Lead Time(17)
tCWL
Write Command to CAS Lead Time(17, 21)
tWCS
Write Command Setup Time(14, 17, 20)
tDHR
Data-in Hold Time (referenced to RAS)
-35
Min. Max.
60 —
— 35
— 10
— 18
35 10K
20 —
6 10K
5—
35 —
11 28
0—
6—
0—
6—
30 —
-50
Min. Max.
90 —
— 50
— 14
— 25
50 10K
30 —
8 10K
8—
50 —
19 36
0—
8—
0—
8—
40 —
12 20
18 —
0—
8—
3—
5—
3 15
— 10
5—
0—
0—
14 25
25 —
0—
14 —
3—
5—
3 15
— 15
5—
0—
0—
0—
0—
5—
30 —
8—
40 —
5—
8—
8—
0—
30 —
8—
14 —
14 —
0—
40 —
-60
Min. Max. Units
110 —
ns
— 60
ns
— 15
ns
— 30
ns
60 10K ns
40 —
ns
10 10K ns
10 —
ns
60 —
ns
20 45
ns
0—
ns
10 —
ns
0—
ns
10 —
ns
40 —
ns
15 30
ns
30 —
ns
0—
ns
15 —
ns
3—
ns
5—
ns
3 15
ns
— 15
ns
5—
ns
0—
ns
0—
ns
0—
ns
10 —
ns
50 —
ns
10 —
ns
15 —
ns
15 —
ns
0—
ns
45 —
ns
(Continued)
8
Integrated Circuit Solution Inc.
DR021-0A 08/11/2001
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