IDT70V27 Integrated Device Technology, IDT70V27 Datasheet - Page 10

• Manufacturer Part Number: IDT70V27
• Description: 32k X 16 3.3v Dual-port Ram
• Manufacturer: Integrated Device Technology

AC Electrical Characteristics Over the
Operating Temperature and Supply Voltage
NOTES:
1. Transition is measured 0mV from Low or High-impedance voltage with Output Test Load (Figure 2).
2. This parameter is guaranteed by device characterization, but is not production tested.
3. To access RAM CE= V
4. The specification for t
5. 'X' in part numbers indicates power rating (S or L).
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
t
WC
EW
AW
AS
WP
WR
DW
HZ
DH
WZ
OW
SWRD
SPS
WRITE CYCLE
t
t
t
t
t
t
t
t
t
t
t
t
t
WC
EW
AW
AS
WP
WR
DW
HZ
DH
WZ
OW
SWRD
SPS
Symbol
Symbol
IDT 70V27S/L
High-Speed 3.3V 32K x 16 Dual-Port Static RAM
Truth Table.
and temperature, the actual t
Chip Enable to End-of-Write
Data Valid to End-of-Write
Output High-Z Time
Data Hold Time
Output Active from End-of-Write
Write Cycle Time
Address Valid to End-of-Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Write Enable to Output in High-Z
SEM Flag Write to Read Time
SEM Flag Contention Window
Chip Enable to End-of-Write
Data Valid to End-of-Write
Output High-Z Time
Data Hold Time
Output Active from End-of-Write
Write Cycle Time
Address Valid to End-of-Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Write Enable to Output in High-Z
SEM Flag Write to Read Time
SEM Flag Contention Window
DH
IL
(4)
must be met by the device supplying write data to the RAM under all operating conditions. Although t
(4)
and SEM = V
(1,2)
(1,2)
(3)
DH
(3)
will always be smaller than the actual t
(3)
(3)
IH
(1,2,4)
(1,2,4)
(1,2)
. To access semaphore, CE = V
(1,2)
Parameter
Parameter
IH
OW
and SEM = V
.
10
IL
. Either condition must be valid for the entire t
(5)
Commercial and Industrial Temperature Range
Min.
____
____
Com'l Only
15
12
12
12
10
0
0
0
0
5
5
70V27X15
Max.
____
____
____
____
____
____
____
____
____
____
____
10
10
Min.
Min.
Com'l & Ind
____
____
20
15
15
15
15
Com'l & Ind
____
____
35
30
30
25
20
0
0
0
0
5
5
0
0
0
0
5
5
70V27X20
70V27X35
DH
and t
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
10
10
____
____
____
____
____
____
____
____
____
____
____
20
20
OW
EW
values will vary over voltage
time. Refer to Chip Enable
Min.
Min.
____
____
25
20
20
20
____
____
Com'l Only
15
Com'l Only
55
45
45
40
30
0
0
0
0
5
5
70V27X25
0
0
0
0
5
5
70V27X55
Max.
Max.
____
____
____
____
____
____
____
____
____
____
____
15
15
____
____
____
____
____
____
____
____
____
____
____
25
25
3603 tbl 13a
3603 tbl 13b
Unit
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