IDT72V255LA15PF IDT, Integrated Device Technology Inc, IDT72V255LA15PF Datasheet - Page 17

• Manufacturer Part Number: IDT72V255LA15PF
• Description: IC FIFO SS 8192X18 15NS 64-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 72Vr

Specifications of IDT72V255LA15PF

• Function: Synchronous
• Memory Size: 144K (8K x 18)
• Access Time: 15ns
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Configuration: Dual
• Density: 144Kb
• Access Time (max): 10ns
• Word Size: 18b
• Organization: 8Kx18
• Sync/async: Synchronous
• Expandable: Yes
• Bus Direction: Uni-Directional
• Package Type: TQFP
• Clock Freq (max): 66.7MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Supply Current: 55mA
• 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: 72V255LA15PF

NOTES:
1. t
2. LD = HIGH, OE = LOW, EF = HIGH
NOTES:
1. t
2. LD = HIGH.
3. First word latency: 60ns + t
IDT72V255LA/72V265LA 3.3 VOLT CMOS SuperSync FIFO™
Q
Q
D
D
8,192 x 18, 16,384 x 18
WCLK
RCLK
0
0
WCLK
0
0
WEN
RCLK
rising edge of the RCLK and the rising edge of the WCLK is less than t
REN
rising edge of WCLK and the rising edge of RCLK is less than t
SKEW1
- Q
- D
WEN
SKEW3
REN
- D
- Q
OE
EF
n
n
n
n
is the minimum time between a rising RCLK edge and a rising WCLK edge to guarantee that FF will go high (after one WCLK cycle pus t
is the minimum time between a rising WCLK edge and a rising RCLK edge to guarantee that EF will go HIGH (after one RCLK cycle plus t
t
ENS
t
DATA IN OUTPUT REGISTER
ENS
t
t
OLZ
t
SKEW1
ENH
t
REF
t
A
REF
Figure 8. Read Cycle, Empty Flag and First Data Word Latency Timing (IDT Standard Mode)
t
OE
(1)
+ 1*
TRCLK
t
SKEW3
t
t
ENH
ENS
t
DS
t
.
A
D
(1)
1
0
NO WRITE
NO OPERATION
Figure 7. Write Cycle and Full Flag Timing (IDT Standard Mode)
t
t
DHS
ENH
LAST WORD
1
SKEW3
2
t
WFF
, then EF deassertion may be delayed one extra RCLK cycle.
SKEW1
t
t
OHZ
t
DS
t
DS
ENS
t
CLKH
, then the FF deassertion may be delayed one extra WCLK cycle.
D
D
1
NO OPERATION
X
t
WFF
t
t
ENH
DH
DATA READ
17
t
DH
t
CLK
2
t
CLKL
t
CLKH
t
t
REF
ENS
t
OLZ
t
SKEW1
t
CLK
(1)
t
CLKL
t
ENS
t
ENH
LAST WORD
t
A
1
NO WRITE
t
ENH
t
A
COMMERCIAL AND INDUSTRIAL
WFF
2
REF
TEMPERATURE RANGES
). If the time between the
). If the time between the
NEXT DATA READ
t
t
ENS
WFF
OCTOBER 22, 2008
t
DS
D
0
D
X
+1
t
REF
t
t
ENH
A
4672 drw 10
t
DH
t
WFF
4672 drw 11
D
1