IDT72255LA IDT [Integrated Device Technology], IDT72255LA Datasheet - Page 6

• Manufacturer Part Number: IDT72255LA
• Description: CMOS SUPERSYNC FIFO
• Manufacturer: IDT [Integrated Device Technology]

IDT72255LA/72265LA SUPERSYNC FIFO™
8,192 x 18, 16,384 x 18
AC ELECTRICAL CHARACTERISTICS
(Commercial: V
NOTES:
1. All AC timings apply to both Standard IDT mode and First Word Fall Through mode.
2. Industrial temperature range product for 15ns and 20ns speed grade are available as a
3. Pulse widths less than minimum values are not allowed.
4. Values guaranteed by design, not currently tested.
AC TEST CONDITIONS
Symbol
f
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
S
A
CLK
CLKH
CLKL
DS
DH
ENS
ENH
LDS
LDH
RS
RSS
RSR
RSF
FWFT
RTS
OLZ
OE
OHZ
WFF
REF
PAF
PAE
HF
SKEW1
SKEW2
SKEW3
Input Pulse Levels
Input Rise/Fall Times
Input Timing Reference Levels
Output Reference Levels
Output Load
standard device.
Clock Cycle Frequency
Data Access Time
Clock Cycle Time
Clock High Time
Clock Low Time
Data Setup Time
Data Hold Time
Enable Setup Time
Enable Hold Time
Load Setup Time
Load Hold Time
Reset Pulse Width
Reset Setup Time
Reset Recovery Time
Reset to Flag and Output Time
Mode Select Time
Retransmit Setup 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
Skew time between RCLK and WCLK
for
FF
PAE
EF
CC
/
/
IR
OR
= 5V
and
HF
Parameter
PAF
FF
PAF
EF
PAE
10%, T
or
or
(3)
IR
OR
A
= 0 C to +70 C; Industrial: V
See Figure 1
GND to 3.0V
(4)
(4)
1.5V
1.5V
3ns
(1)
Min.
IDT72255LA10
IDT72265LA10
4.5
4.5
10
10
10
10
12
60
—
—
—
—
—
—
—
2
3
0
3
0
3
0
0
3
0
2
2
5
Commercial
Max.
CC
100
—
—
—
—
—
—
—
—
—
—
—
—
10
—
—
—
16
—
—
—
8
6
6
8
8
8
8
= 5V
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGE
Min.
10%, T
IDT72255LA15
IDT72265LA15
15
15
15
15
15
60
—
—
—
—
—
—
—
2
6
6
4
1
4
1
4
1
0
4
0
3
3
6
* Includes jig and scope capacitances.
D.U.T.
A
Figure 2. Output Load
680
= –40 C to +85 C )
Max.
66.7
Com’l & Ind’l
10
15
10
10
10
10
20
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
8
Min.
5V
IDT72255LA20
IDT72265LA20
20
20
20
20
10
20
60
—
—
—
—
—
—
—
2
8
8
5
1
5
1
5
1
0
5
0
3
3
(1)
1.1K
30pF*
Max.
4670 drw 04
50
12
20
10
10
12
12
12
12
22
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
MHz
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
6