參數(shù)資料
型號(hào): IDT7034S15PF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: HIGH-SPEED 4K x 18 DUAL-PORT STATIC RAM
中文描述: 4K X 18 DUAL-PORT SRAM, 15 ns, PQFP100
封裝: 14 X 14 MM, 1.40 MM HEIGHT, TQFP-100
文件頁數(shù): 8/19頁
文件大?。?/td> 200K
代理商: IDT7034S15PF
IDT7034S/L
High-Speed 4K x 18 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
Timing of Power-up Power-down
8
AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage
(5,6)
NOTES:
1.
2.
3.
Transition is measured ±500mV from Low or High-impedance voltage with the Output Test Load (Figure 2).
This parameter is guaranteed by device characterization, but is not production tested.
To access RAM,
CE
= V
IL
,
UB
or
LB
= V
IL
,
SEM
= V
IH
. To access semaphore,
CE
= V
IH
or
UB
&
LB
= V
IH
,
and
SEM
= V
IL
. Either condition must be valid for the entire
t
EW
time.
The specification for t
DH
must be met by the device supplying write data to the RAM under all operating conditions. Although t
DH
and t
OW
values will vary over voltage and
temperature, the actual t
DH
will always be smaller than the actual t
OW
.
'X' in part numbers indicates power rating (S or L).
Industrial temperature: for specific speeds, packages and powers contact your sales office.
4.
5.
6.
CE
4089 drw 06
t
PU
I
CC
I
SB
t
PD
50%
50%
,
Symbol
Parameter
7034X15
Com'l Only
7034X20
Com'l Only
Unit
Min.
Max.
Min.
Max.
WRITE CYCLE
t
WC
Write Cycle Time
15
____
20
____
ns
t
EW
Chip Enable to End-of-Write
(3)
12
____
15
____
ns
t
AW
Address Valid to End-of-Write
12
____
15
____
ns
t
AS
Address Set-up Time
(3)
0
____
0
____
ns
t
WP
Write Pulse Width
12
____
15
____
ns
t
WR
Write Recovery Time
0
____
0
____
ns
t
DW
Data Valid to End-of-Write
10
____
15
____
ns
t
HZ
Output High-Z Time
(1,2)
____
10
____
12
ns
t
DH
Data Hold Time
(4)
0
____
0
____
ns
t
WZ
Write Enable to Output in High-Z
(1,2)
____
10
____
12
ns
t
OW
Output Active from End-of-Write
(1,2,4)
0
____
0
____
ns
t
SWRD
SEM
Flag Write to Read Time
5
____
5
____
ns
t
SPS
SEM
Flag Contention Window
5
____
5
____
ns
4089 tbl 13
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