IDT7281 Integrated Device Technology, IDT7281 Datasheet - Page 2

• Manufacturer Part Number: IDT7281
• Description: Cmos Dual Asynchronous Fifo
• Manufacturer: Integrated Device Technology

DC ELECTRICAL CHARACTERISTICS
(Commercial: V
NOTES:
1. Industrial temperature range product for the 15ns speed grade is available as a standard
2. Measurements with 0.4 ≤ V
3. R ≥ V
4. Tested with outputs open (I
5. Tested at f = 20 MHz.
6. Typical I
7. All Inputs = V
CAPACITANCE
NOTE:
1. Characterized values, not currently tested.
IDT7280/7281/7282/7283/7284/7285 5V ASYNCHRONOUS FIFO
DUAL 256 x 9, 512 x 9, 1,024 x 9, 2,048 x 9, 4,096 x 9 and 8,192 x 9
PIN CONFIGURATION
I
I
V
V
I
I
LI
LO
CC1
CC2
Symbol
C
C
Symbol
OH
OL
(2)
IN
device.
frequency = RCLK frequency (in MHz, using TTL levels), data switching at f
C
OUT
(3)
(4,5)
(4,7)
L
= capacitive load (in pF).
XOA/HFA
XOB/HFB
IH
, 0.4 ≤ V
CC1
GND
GND
EFA
EFB
FFA
QA
QA
QA
QA
QA
QA
QA
QA
QA
FFB
QB
QB
QB
QB
QB
QB
QB
QB
QB
= 2*[15 + 2*f
RA
RB
CC
CC
Input Leakage Current (Any Input)
Output Leakage Current
Output Logic “1” Voltage
Output Logic “0” Voltage
Active Power Supply Current (both FIFOs)
Standby Current (R=W=RS=FL/RT=V
0
1
2
3
8
4
5
6
7
0
1
2
3
8
4
5
6
7
Output Capacitance
Input Capacitance
OUT
- 0.2V or GND + 0.2V.
= 5V ± 10%, T
Parameter
≤ V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
TSSOP (SO56-2, order code: PA)
S
CC
+ 0.02*C
OUT
.
IN
(T
= 0).
≤ V
Parameter
A
A
TOP VIEW
L
= +25
CC
*f
= 0°C to +70°C; Industrial: V
S
.
] (in mA) with V
o
C, f = 1.0 MHz)
I
I
V
OH
OL
Condition
V
OUT
IN
= –2mA
= 8mA
= 0V
= 0V
CC
IH
)
= 5V, T
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
A
3208 drw 02
= 25
Max.
XIA
DA
DA
DA
DA
DA
WA
V
DA
DA
DA
DA
FLA/RTA
RSA
XIB
DB
DB
DB
DB
DB
WB
V
DB
DB
DB
DB
FLB/RTB
RSB
CC
CC
8
8
0
1
2
3
8
4
5
6
7
0
1
2
3
8
4
5
6
7
o
CC
C, f
= 5V ± 10%, T
S
= WCLK
Unit
Commercial & Industrial
S
Min.
–10
pF
pF
2.4
–1
—
—
—
/2,
t
A
2
IDT7280L
IDT7281L
IDT7282L
= 12, 15 ns
NOTES:
1. For RT/RS/XI input, V
2. 1.5V undershoots are allowed for 10ns once per cycle.
ABSOLUTE MAXIMUM RATINGS
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
RECOMMENDED DC OPERATING
CONDITIONS
AC TEST CONDITIONS
Symbol
Symbol
A
V
V
GND
V
V
T
T
Input Pulse Levels
Input Rise/Fall Times
Input Timing Reference Levels
Output Reference Levels
Output Load
T
I
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
A
A
TERM
CC
OUT
IH
IL
= –40°C to +85°C)
STG
(2)
(1)
125
Max.
0.4
10
—
15
Supply Voltage
Supply Voltage
Input High Voltage
Input Low Voltage
Operating Temperature
Commercial
Operating Temperature
Industrial
1
Terminal Voltage with
Respect to GND
Storage Temperature
DC Output Current
(6)
(1)
* Includes scope and jig capacitances.
Parameter
Rating
IH
OUTPUT
or equivalent circuit
= 2.6V (commercial).
Figure 1. Output Load
PIN
TO
680Ω
COMMERCIAL TEMPERATURE RANGE
Min.
Commercial & Industrial
–10
2.4
–1
—
—
—
t
A
IDT7285lL
IDT7283L
IDT7284L
= 12, 15 ns
Com'l & Ind'l
–0.5 to +7.0
–55 to +125
Min.
–50 to +50
–40
4.5
2.0
—
5V
0
0
1.1K
30pF*
150
Max.
0.4
3208 drw 03
—
10
—
15
GND to 3.0V
See Figure 1
Typ.
5.0
—
—
—
—
0
(1)
1.5V
1.5V
5ns
JULY 17, 2006
Max.
5.5
0.8
—
70
85
0
Unit
mA
°C
Unit
V
µA
µA
mA
mA
V
V
Unit
°C
°C
V
V
V
V