參數(shù)資料
型號: TMS6644148A
廠商: Texas Instruments, Inc.
英文描述: 4 194 304 BY 4-BIT/2 097 152 BY 8-BIT/1 048 576 BY 16-BIT BY 4-BANK SYNCHRONOUS DYNAMIC RANDOM-ACCESS MEMORIES
中文描述: 4 194 304 4位/ 2 097 152 8位/ 1 048 576由16位4,銀行同步動態(tài)隨機存取記憶體
文件頁數(shù): 28/56頁
文件大小: 958K
代理商: TMS6644148A
TMS664414, TMS664814, TMS664164
4 194 304 BY 4-BIT/2 097 152 BY 8-BIT/1 048 576 BY 16-BIT BY 4-BANK
SYNCHRONOUS DYNAMIC RANDOM-ACCESS MEMORIES
SMOS695A – APRIL 1998 – REVISED JULY 1998
28
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
PARAMETER MEASUREMENT INFORMATION
CAS Latency = 2
(see Note A)
CLK
DQ
Q
ACTV Command
READ-P Command
tAPR
Q
NOTE A: For this example, assume CAS latency = 2 and burst length = 2.
Figure 15. Read Automatic-Deactivate (Autoprecharge)
CLK
DQ
D
D
ACTV Command
WRT-P Command
tAPW
NOTE A: For this example, the burst length = 2.
Figure 16. Write Automatic-Deactivate (Autoprecharge)
CLK
DQ
Q
CKE
nCLE
nCLE
tIS
Q
(Assume Final Data Output of Burst)
tIS
Q
Q
tIH
tIH
Figure 17. CLK-Suspend Operation (Assume Burst Length = 4)
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