Discontinued (12/98 - last order; 9/99 last ship)
IBM0316409C IBM0316809C IBM0316169C
IBM03164B9C
16Mb Synchronous DRAM-Die Revision D
Burst Read Command
The Burst Read command is initiated by having CS and CAS low while holding RAS and WE high at the rising
edge of the clock. The address inputs determine the starting column address for the burst, the Mode Register
sets type of burst (sequential or interleave) and the burst length (1, 2, 4, 8, full page). The delay from the start
of the command to when the data from the first cell appears on the outputs is equal to the value of the CAS
latency that is set in the Mode Register.
Burst Read Operation (Burst Length = 4, CAS Latency = 1, 2, 3)
T0
T1
T2
T3
T4
T5
T6
T7
T8
CLK
READ A
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
COMMAND
CAS latency = 1
DOUT A
DOUT A
DOUT A
DOUT A
DOUT A
DOUT A
DOUT A
0
1
2
3
t
CK1, DQs
CAS latency = 2
DOUT A
3
0
1
2
t
CK2, DQs
CAS latency = 3
DOUT A
DOUT A
DOUT A
DOUT A
3
0
1
2
t
CK3, DQs
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
08J3348.E35853
5/98
Page 15 of 120
IBM [ IBM ]
