IDT72255LA20TF IDT, Integrated Device Technology Inc, IDT72255LA20TF Datasheet - Page 6

• Manufacturer Part Number: IDT72255LA20TF
• Description: IC FIFO 8KX18 LP 20NS 64QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 7200r

Specifications of IDT72255LA20TF

• Function: Synchronous
• Memory Size: 144K (8K x 18)
• Access Time: 20ns
• Voltage - Supply: 4 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-STQFP
• Configuration: Dual
• Density: 144Kb
• Access Time (max): 12ns
• Word Size: 18b
• Organization: 8Kx18
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: STQFP
• Clock Freq (max): 50MHz
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 80mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 64
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Rate: -
• Lead Free Status / Rohs Status: Not Compliant
• Other names: 72255LA20TF

AC ELECTRICAL CHARACTERISTICS
(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C; Industrial: VCC = 5V ± 10%, TA = –40°C to +85°C)
AC TEST CONDITIONS
IDT72255LA/72265LA CMOS SuperSync FIFO™
8,192 x 18 and 16,384 x 18
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 grades are available as a standard device.
3. Pulse widths less than minimum values are not allowed.
4. Values guaranteed by design, not currently tested.
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
t
S
A
CLK
CLKH
CLKL
DS
DH
ENS
ENH
LDS
LDH
RS
RSS
RSR
RSF
RTS
OE
REF
PAE
HF
FWFT
OLZ
OHZ
WFF
PAF
SKEW1
SKEW2
SKEW3
SKEW4
Input Pulse Levels
Input Rise/Fall Times
Input Timing Reference Levels
Output Reference Levels
Output Load
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 FF or IR
Read Clock to EF or OR
Write Clock to PAF
Read Clock to PAE
Clock to HF
Skew time between RCLK and WCLK for FF/IR
Skew time between RCLK and WCLK for PAE and PAF
Skew time between RCLK and WCLK for EF/OR
Skew time between RCLK and WCLK for PAE and PAF
for Re-transmit operation
(3)
Parameter
(4)
(4)
GND to 3.0V
See Figure 2
1.5V
1.5V
3ns
Min.
(1)
4.5
4.5
—
10
10
10
10
—
—
—
—
—
—
12
60
15
2
3
0
3
0
3
0
0
3
0
2
2
5
IDT72255LA10
IDT72265LA10
Commercial
6
* Includes jig and scope capacitances.
Max.
100
—
—
—
—
—
—
—
—
—
—
—
—
10
—
—
—
16
—
—
—
—
8
6
6
8
8
8
8
D.U.T.
Min.
—
15
15
15
15
—
—
—
—
—
—
15
60
17
2
6
6
4
1
4
1
4
1
0
4
0
3
3
6
IDT72255LA15
IDT72265LA15
680Ω
Figure 2. Output Load
Commercial & Industrial
Max.
66.7
10
—
—
—
—
—
—
—
—
—
—
—
—
15
—
—
—
10
10
10
10
20
—
—
—
—
8
8
COMMERCIAL AND INDUSTRIAL
5V
1.1K
30pF*
TEMPERATURE RANGES
Min.
—
20
20
20
20
—
—
—
—
—
—
10
20
60
25
2
8
8
5
1
5
1
5
1
0
5
0
3
3
IDT72255LA20
IDT72265LA20
JANUARY 13, 2009
4670 drw04
(2)
Max.
50
12
—
—
—
—
—
—
—
—
—
—
—
—
20
—
—
—
10
10
12
12
12
12
22
—
—
—
—
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
ns
ns