IDT72261 IDT [Integrated Device Technology], IDT72261 Datasheet - Page 6

• Manufacturer Part Number: IDT72261
• Description: CMOS SUPERSYNC FIFOO 16,384 x 9, 32,768 x 9
• Manufacturer: IDT [Integrated Device Technology]

IDT72261/72271 SyncFIFO
16,384 x 9, 32,768 x 9
AC ELECTRICAL CHARACTERISTICS
(Commercial: V
NOTES:
1. All AC timings apply to both Standard IDT Mode and First Word Fall
2. For the RCLK line: t
3. Pulse widths less than minimum values are not allowed.
4. Values guaranteed by design, not currently tested.
AC TEST CONDITIONS
Symbol
Input Pulse Levels
Input Rise/Fall Times
Input Timing Reference Levels
Output Reference Levels
Output Load
t
t
Through Mode.
the programmable flag registers; otherwise, use the table value. For the
WCLK line, use the t
t
SKEW1
SKEW2
t
t
t
t
t
t
FWFT
t
t
t
CLKH
t
t
t
t
t
t
t
t
CLKL
t
t
ENS
ENH
t
RSS
RSR
t
OHZ
WFF
CLK
LDS
LDH
RSF
RTS
OLZ
REF
PAF
PAE
t
f
t
DS
DH
RS
OE
HF
S
A
Parameter
Clock Cycle Frequency
Data Access Time
Clock Cycle Time
Clock High Time
Clock Low Time
Data Set-up Time
Data Hold Time
Enable Set-up Time
Enable Hold Time
Load Set-up Time
Load Hold Time
Reset Pulse Width
Reset Set-up Time
Reset Recovery Time
Reset to Flag and Output Time
Mode Select Time
Retransmit Set-Up Time
Output Enable to Output in Low Z
Output Enable to Output Valid
Output Enable to Output in High Z
Write Clock to
Read Clock to
Write Clock to
Read Clock to
Clock to
Skew time between RCLK and WCLK
for
Skew time between RCLK and
WCLK for
FF
CC
and
CLKL
= 5V
CLKL
HF
PAE
IR
(min.) = 7 ns only when reading the offsets from
(min.) value given in the table.
FF
EF
PAF
PAE
and
10%, T
or
or
(3)
PAF
IR
OR
A
= 0 C to +70 C; Military: V
(4)
(4)
GND to 3.0V
See Figure 1
1.5V
1.5V
3ns
(1)
4.5
Min.
4.5
3.5
3.5
3.5
6.5
3.5
72261L10
72271L10
10
10
10
10
—
—
—
—
—
15
—
2
0
0
0
0
3
3
–
8
(2)
3097 tbl 08
Max.
Commercial
100
10
16
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
7
7
8
8
8
8
CC
Min.
3.5
3.5
3.5
8.5
3.5
5
12
12
12
12
10
18
72261L12
72271L12
—
—
—
—
—
—
—
2
5
0
0
0
0
3
3
(2)
= 5V
Max.
83.3
7.5
7.5
12
18
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
9
9
9
9
9
10%, T
MILITARY AND COMMERCIAL TEMPERATURE RANGES
Min.
Com'l & Mil. Commercial
6
15
10
15
15
15
12
21
72261L15
72271L15
—
—
—
—
—
—
—
2
6
4
1
4
1
4
0
4
0
3
3
(2)
D.U.T.
A
* Includes jig and scope capacitances.
= –55 C to +125 C)
Max.
66.7
10
15
10
10
10
10
20
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
8
680
Figure 1. Output Load
Min.
72261L20
72271L20
20
10
20
20
20
15
25
—
—
—
—
—
—
—
2
8
8
5
1
5
1
5
0
5
0
3
3
Max.
50
12
20
10
10
12
12
12
12
22
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5V
1.1K
30pF*
Min.
72261L25
72271L25
25
10
10
10
25
25
25
20
35
—
—
—
—
—
—
—
3
6
1
6
1
6
0
6
0
3
3
Military
Max.
3036 drw 04
40
15
25
13
13
15
15
15
15
25
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3097 tbl 06
MHz
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
6