Discontinued (9/98 - last order; 3/99 last ship)
IBM11T8645HP
8M x 64 144 PIN SO DIMM
Read Cycle
-50
-60
Symbol
Parameter
Access Time from RAS
Unit
Notes
Min
—
Max
50
Min
—
Max
60
tRAC
tCAC
tAA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1, 2, 3
1, 3
1, 3
3
Access Time from CAS
—
—
—
0
13
25
13
—
—
—
—
—
13
—
13
—
—
—
—
—
0
15
30
15
—
—
—
—
—
15
—
15
—
—
Access Time from Address
tOEA
tRCS
tRCH
tRRH
tRAL
tCLZ
tOEZ
tCDD
tOFF
tOES
tORD
Access Time From OE
Read Command Setup Time
Read Command Hold Time to CAS
Read Command Hold Time to RAS
Column Address to RAS Lead Time
CAS to Output in Low-Z
0
0
4
0
0
25
0
30
0
3
5
6
5
Output Buffer Turn-Off Delay From OE
CAS to DIN Delay Time
0
0
13
0
15
0
Output Buffer Turn-Off Delay
OE Setup Time Prior to CAS
OE Setup Time Prior to RAS (Hidden Refresh)
5
5
0
0
1. Operation within the tRCD(max.) limit ensures that tRAC(max.) can be met. tRCD(max.) is specified as a reference point only. If tRCD
is greater than the specified tRCD(max.) limit, then access time is controlled by tCAC
2. Operation within the tRAD(max.) limit ensures that tRAC(max.) can be met. tRAD(max.) is specified as a reference point only. If tRAD is
greater than the specified tRAD(max.) limit, then access time is controlled by tAA
.
.
3. Measured with the specified current load and 100pF at VOL = 0.8V and VOH = 2.0V.
4. Either tRCH or tRRH must be satisfied for a read cycle.
5. tOFF (max) and tOEZ (max) define the time at which the output achieves the open circuit condition and is not referenced to output
voltage levels.
6. Either tCDD or tOED must be satisfied
©IBM Corporation. rights reserved.
Use is further subject to the provisions at the end of this document.
75H3164
GA14-4479-02
Rev 11/97
Page 10 of 32
IBM [ IBM ]
