6.42
IDT709389L
High-Speed 64K x 18 Synchronous Pipelined Dual-Port Static RAM Industrial and Commercial Temperature Ranges
7
NOTES:
1. Transition is measured 0mV from Low or High-impedance voltage with the Output Test Load (Figure 2). This parameter is guaranteed by device characteriza-
tion, but is not production tested.
2. The Pipelined output parameters (t
CYC2, tCD2) to either the Left or Right ports when FT/PIPE = VIH. Flow-Through parameters (tCYC1, tCD1) apply when FT/PIPE = VIL for
that port
.
3. All input signals are synchronous with respect to the clock except for the asynchronous Output Enable (OE), FT/PIPER and FT/PIPEL.
AC Electrical Characteristics Over the Operating Temperature Range
(Read and Write Cycle Timing)
(3)
(VCC = 5V ± 10%, TA = 0°C to +70°C)
709389L7
Com'l Only
709389L9
Com'l
& Ind
709389L12
Com'l Only
Symbol Parameter Min.Max.Min.Max.Min.Max.Unit
t
CYC1
Clock Cycle Time (Flow-Through)
(2 )
22
____
25
____
30
____
ns
t
CYC2
Clock Cycle Time (Pipelined)
(2)
12
____
15
____
20
____
ns
t
CH1
Clock High Time (Flow-Through)
(2 )
7.5
____
12
____
12
____
ns
t
CL 1
Clock Low Time (Flow-Through)
(2 )
7.5
____
12
____
12
____
ns
t
CH2
Clock High Time (Pipelined)
(2)
5
____
6
____
8
____
ns
t
CL 2
Clock Low Time (Pipelined)
(2 )
5
____
6
____
8
____
ns
t
R
Clock Rise Time
____
3
____
3
____
3ns
t
F
Clock Fall Time
____
3
____
3
____
3ns
t
SA
Address Setup Time 4
____
4
____
4
____
ns
t
HA
Address Hold Time 0
____
1
____
1
____
ns
t
SC
Chip Enable Setup Time 4
____
4
____
4
____
ns
t
HC
Chip Enable Hold Time 0
____
1
____
1
____
ns
t
SB
Byte Enable Setup Time 4
____
4
____
4
____
ns
t
HB
Byte Enable Hold Time 0
____
1
____
1
____
ns
t
SW
R/W Setup Time 4
____
4
____
4
____
ns
t
HW
R/W Hold Time 0
____
1
____
1
____
ns
t
SD
Input Data Setup Time 4
____
4
____
4
____
ns
t
HD
Input Data Hold Time 0
____
1
____
1
____
ns
t
SAD
ADS Setup Time
4
____
4
____
4
____
ns
t
HA D
ADS Hold Time
0
____
1
____
1
____
ns
t
SCN
CNTEN Setup Time
4
____
4
____
4
____
ns
t
HCN
CNTEN Hold Time
0
____
1
____
1
____
ns
t
SRST
CNTRST Setup Time
4
____
4
____
4
____
ns
t
HRST
CNTRST Hold Time
0
____
1
____
1
____
ns
t
OE
Output Enable to Data Valid
____
9
____
12
____
12 ns
t
OLZ
Output Enable to Output Low-Z
(1 )
2
____
2
____
2
____
ns
t
OHZ
Output Enable to Output High-Z
(1 )
17 17 17ns
t
CD1
Clock to Data Valid (Flow-Through)
(2 )
____
18
____
20
____
25 ns
t
CD2
Clock to Data Valid (Pipelined)
(2 )
____
7.5
____
9
____
12 ns
t
DC
Data Output Hold After Clock High 2
____
2
____
2
____
ns
t
CKHZ
Clock High to Output High-Z
(1 )
292929ns
t
CKLZ
Clock High to Output Low-Z
(1 )
2
____
2
____
2
____
ns
Port-to-Port Delay
t
CWDD
Write Port Clock High to Read Data Delay
____
28
____
35
____
40 ns
t
CCS
Clock-to-Clock Setup Time
____
10
____
15
____
15 ns
4844 tbl 1
