70V3319S133BF IDT, 70V3319S133BF Datasheet - Page 11

• Manufacturer Part Number: 70V3319S133BF
• Description: SRAM 256Kx18 STD-PWR 3.3V SYNC DUAL-PORT RAM
• Manufacturer: IDT

Specifications of 70V3319S133BF

• Part # Aliases: IDT70V3319S133BF

AC Electrical Characteristics Over the Operating Temperature Range
(Read and Write Cycle Timing)
NOTES:
1. The Pipelined output parameters (t
2. All input signals are synchronous with respect to the clock except for the asynchronous Output Enable (OE) and FT/PIPE. FT/PIPE should be treated as a
3. These values are valid for either level of V
Port-to-Port Delay
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CYC1
CYC2
CH1
CL1
CH2
CL2
SA
HA
SC
HC
SB
HB
SW
HW
SD
HD
SAD
HAD
SCN
HCN
SRPT
HRPT
OE
OLZ
OHZ
CD1
CD2
DC
CKHZ
CKLZ
CO
IDT70V3319/99S
High-Speed 3.3V 256/128K x 18 Dual-Port Synchronous Static RAM
FT/PIPE = V
DC signal, i.e. steady state during operation.
Symbol
IL
Clock Cycle Time (Flow-Through)
Clock Cycle Time (Pipelined)
Clock High Time (Flow-Through)
Clock Low Time (Flow-Through)
Clock High Time (Pipelined)
Clock Low Time (Pipelined)
Chip Enable Setup Time
Chip Enable Hold Time
Byte Enable Setup Time
Byte Enable Hold Time
R/W Setup Time
R/W Hold Time
Input Data Setup Time
Input Data Hold Time
Output Enable to Data Valid
Output Enable to Output Low-Z
Output Enable to Output High-Z
Clock to Data Valid (Flow-Through)
Clock to Data Valid (Pipelined)
Data Output Hold After Clock High
Clock High to Output High-Z
Clock High to Output Low-Z
Clock-to-Clock Offset
Address Setup Time
Address Hold Time
ADS Setup Time
ADS Hold Time
CNTEN Setup Time
CNTEN Hold Time
REPEAT Setup Time
REPEAT Hold Time
for that port.
CYC2
, t
(1)
CD2
(2)
(1)
DDQ
(1)
) apply to either or both left and right ports when FT/PIPE
(1)
(1)
(1)
(3.3V/2.5V). See page 5 for details on selecting the desired operating voltage levels for each port.
(1)
Parameter
(2,3)
(V
6.42
11
DD
= 3.3V ± 150mV, T
Industrial and Commercial Temperature Ranges
X
= V
IH
. Flow-through parameters (t
70V3319/99S166
Min.
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
2.1
2.1
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
____
____
____
20
A
Com'l Only
6
6
6
5
1
1
1
1
1
= 0°C to +70°C)
Max.
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
4.0
____
3.6
3.6
____
____
____
12
3
70V3319/99S133
Min.
7.5
2.6
2.6
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
____
____
____
25
7
7
6
1
1
1
1
1
CYC1
Com'l
& Ind
, t
Max.
CD1
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
4.2
____
4.2
4.2
____
____
____
15
3
) apply when
5623 tbl 11
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns