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TMS417400-60DR Datasheet(PDF) 14 Page - Texas Instruments

Part # TMS417400-60DR
Description  4194304-WORD BY 4-BIT HIGH-SPEED DRAMS
PDF  30 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS417400-60DR Datasheet(HTML) 14 Page - Texas Instruments

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TMS416400, TMS416400P, TMS417400, TMS417400P
TMS426400, TMS426400P, TMS427400, TMS427400P
4194304-WORD BY 4-BIT HIGH-SPEED DRAMS
SMKS881B – MAY 1995 – REVISED AUGUST 1995
14
POST OFFICE BOX 1443
• HOUSTON, TEXAS 77251–1443
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (continued)
’4xx400 - 60
’4xx400P - 60
’4xx400 - 70
’4xx400P - 70
’4xx400 - 80
’4xx400P - 80
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
tAWD
Delay time, column address to W low (read-write operation only)
55
63
70
ns
tCHR
Delay time, RAS low to CAS high (CBR refresh only)
10
10
10
ns
tCRP
Delay time, CAS high to RAS low
5
5
5
ns
tCSH
Delay time, RAS low to CAS high
60
70
80
ns
tCSR
Delay time, CAS low to RAS low (CBR refresh only)
5
5
5
ns
tCWD
Delay time, CAS low to W low (read-write operation only)
40
46
50
ns
tOED
Delay time, OE to data
15
18
20
ns
tRAD
Delay time, RAS low to column address (see Note 12)
15
30
15
35
15
40
ns
tRAL
Delay time, column address to RAS high
30
35
40
ns
tCAL
Delay time, column address to CAS high
30
35
40
ns
tRCD
Delay time, RAS low to CAS low (see Note 12)
20
45
20
52
20
60
ns
tRPC
Delay time, RAS high to CAS low
0
0
0
ns
tRSH
Delay time, CAS low to RAS high
15
18
20
ns
tRWD
Delay time, RAS low to W low (read-write operation only)
85
98
110
ns
tCPW
Delay time, W low after CAS precharge (read-write operation only)
60
68
75
ns
tRASS
Pulse duration, self-refresh entry from RAS low
100
100
100
µs
tRPS
Pulse duration, RAS precharge after self refresh
110
130
150
ns
tTAA
Access time from address (test mode)
35
40
45
ns
tTCPA
Access time from column precharge (test mode)
40
45
50
ns
tTRAC
Access time from RAS (test mode)
65
75
85
ns
’4x6400
64
64
64
tREF
Refresh time interval
’4x6400P
128
128
128
ms
tREF
Refresh time interval
’4x7400
32
32
32
ms
’4x7400P
128
128
128
tT
Transition time
3
30
3
30
3
30
ns
NOTE 12: The maximum value is specified only to assure access time.



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