參數(shù)資料
型號: IDT71V3557S75BG
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: 128K x 36, 256K x 18, 3.3V Synchronous ZBT SRAMs 3.3V I/O, Burst Counter, Flow-Through Outputs
中文描述: 128K X 36 ZBT SRAM, 7.5 ns, PBGA119
封裝: 14 X 22 MM, PLASTIC, BGA-119
文件頁數(shù): 16/28頁
文件大?。?/td> 996K
代理商: IDT71V3557S75BG
6.42
16
IDT71V3557, IDT71V3559, 128K x 36, 256K x 18, 3.3V Synchronous SRAMs with
ZBT Feature, 3.3V I/O, Burst Counter, and Flow-Through Outputs Commercial and Industrial Temperature Ranges
AC Electrical Characteristics
(V
DD
= 3.3V +/-5%, Commercial and Industrial Temperature Ranges)
NOTES:
1. Measured as HIGH above 0.6V
DDQ
and LOW below 0.4V
DDQ
.
2. Transition is measured ±200mV fromsteady-state.
3. These parameters are guaranteed with the AC load (Figure 1) by device characterization. They are not production tested.
4. To avoid bus contention, the output buffers are designed such that t
CHZ
(device turn-off) is about 1ns faster than
t
CLZ
(device turn-on) at a given temperature
and
voltage. The specs as shown do not imply bus contention because t
CLZ
is a Mn. parameter that is worse case at totally different test conditions
(0 deg. C, 3.465V) than t
CHZ
,
which is a Max. parameter (worse case at 70 deg. C, 3.135V).
5. Commercial temperature range only.
7.5ns
(5)
8ns
8.5ns
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
t
CYC
Clock Cycle Time
10
____
10.5
____
11
____
ns
t
CH
(1)
Clock High Pulse Width
2.5
____
2.7
____
3.0
____
ns
t
CL
(1)
Clock LowPulse Width
2.5
____
2.7
____
3.0
____
ns
Output Parameters
t
CD
Clock High to Valid Data
____
7.5
____
8
____
8.5
ns
t
CDC
Clock High to Data Change
2
____
2
____
2
____
ns
t
CLZ
(2,3,4)
Clock High to Output Active
3
____
3
____
3
____
ns
t
CHZ
(2,3,4)
Clock High to Data High-Z
____
5
____
5
____
5
ns
t
OE
Output Enable Access Time
____
5
____
5
____
5
ns
t
OLZ
(2,3)
Output Enable Lowto Data Active
0
____
0
____
0
____
ns
t
OHZ
(2,3)
Output Enable High to Data High-Z
____
5
____
5
____
5
ns
Set Up Times
t
SE
Clock Enable Setup Time
2.0
____
2.0
____
2.0
____
ns
t
SA
Address Setup Time
2.0
____
2.0
____
2.0
____
ns
t
SD
Data In Setup Time
2.0
____
2.0
____
2.0
____
ns
t
SW
Read/Write (R/
W
) Setup Time
2.0
____
2.0
____
2.0
____
ns
t
SADV
Advance/Load (ADV/
LD
) Setup Time
2.0
____
2.0
____
2.0
____
ns
t
SC
Chip Enable/Select Setup Time
2.0
____
2.0
____
2.0
____
ns
t
SB
Byte Write Enable (
BW
x) Setup Time
2.0
____
2.0
____
2.0
____
ns
Hold Times
t
HE
Clock Enable Hold Time
0.5
____
0.5
____
0.5
____
ns
t
HA
Address Hold Time
0.5
____
0.5
____
0.5
____
ns
t
HD
Data In Hold Time
0.5
____
0.5
____
0.5
____
ns
t
HW
Read/Write (R/
W
) Hold Time
0.5
____
0.5
____
0.5
____
ns
t
HADV
Advance/Load (ADV/
LD
) Hold Time
0.5
____
0.5
____
0.5
____
ns
t
HC
Chip Enable/Select Hold Time
0.5
____
0.5
____
0.5
____
ns
t
HB
Byte Write Enable (
BW
x) Hold Time
0.5
____
0.5
____
0.5
____
ns
5282 tbl 24
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