IBMN612404GT3B
IBMN612804GT3B
128Mb Double Data Rate Synchronous DRAM
Preliminary
Electrical Characteristics & AC Timing for DDR266/DDR200 - Absolute
Specifications
(0 °C ≤ TA ≤ 70 °C; VDDQ = 2.5V ± 0.2V; VDD = 2.5V ± 0.2V, See AC Characteristics) (Part 2 of 2)
DDR266A (7N)
DDR266B (75N)
DDR200 (8N)
Symbol
Parameter
Unit
Notes
Min
Max
Min
Max
Min
Max
2, 3, 4,
11, 13,
14
Address and control input setup time (fast
slew rate)
t
0.9
0.9
1.1
ns
ns
IS
2, 3, 4,
12, 13,
14, 17
Address and control input hold time (slow
slew rate)
t
1.0
1.0
1.1
1.1
IH
2, 3, 4,
12, 13,
14, 17
Address and control input setup time (slow
slew rate)
t
1.0
2.2
1.0
2.2
ns
ns
IS
2, 3, 4,
14
t
Input pulse width
IPW
t
Read preamble
0.9
0.40
45
1.1
0.60
0.9
0.40
45
1.1
0.60
0.9
0.40
50
1.1
0.60
t
1, 2, 3, 4
1, 2, 3, 4
RPRE
CK
t
Read postamble
t
RPST
CK
t
Active to Precharge command
120,000
120,000
120,000
ns 1, 2, 3, 4
ns 1, 2, 3, 4
RAS
Active to Active/Auto-refresh command
period
t
65
65
70
RC
Auto-refresh to Active/Auto-refresh com-
mand period
t
75
20
20
75
20
20
80
20
20
ns 1, 2, 3, 4
ns 1, 2, 3, 4
ns 1, 2, 3, 4
RFC
t
Active to Read or Write delay
RCD
Active to Read Command with Autopre-
charge
t
RAP
t
Precharge command period
Active bank A to Active bank B command
Write recovery time
20
15
15
20
15
15
20
15
15
ns 1, 2, 3, 4
ns 1, 2, 3, 4
ns 1, 2, 3, 4
RP
t
RRD
t
WR
DAL
WTR
(t /t
)
(t /t
)
(t /t
)
WR CK
WR CK
WR CK
Auto precharge write recovery + precharge
time
1, 2, 3,
4, 16
t
+
+
+
t
CK
(t /t
)
(t /t
)
(t /t
)
RP CK
RP CK
RP CK
t
Internal write to read command delay
Exit self-refresh to non-read command
Exit self-refresh to read command
1
1
1
t
1, 2, 3, 4
CK
t
t
75
75
80
ns 1, 2, 3, 4
XSNR
XSRD
200
200
200
t
1, 2, 3, 4
CK
1, 2, 3,
4, 8
t
Average Periodic Refresh Interval
QFC setup time on Read
15.6
1.1
0.6
4.0
2.0
15.6
1.1
0.6
4.0
2.0
15.6
1.1
0.6
4.0
2.0
µs
REFI
1, 2, 3,
4, 15
t
0.9
0.4
0.9
0.4
0.9
0.4
t
QCS
QCH
CK
1, 2, 3,
4, 15
t
QFC hold time on Read
t
CK
Delay from CK edge of write command to
QFC low on write
1, 2, 3,
4, 9, 15
t
ns
ns
QCSW
1, 2, 3,
4, 10, 15
t
QFC hold time on write
1.25
1.25
1.25
QCHW
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Use is further subject to the provisions at the end of this document.
06K0566.F39350B
1/01
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