IDT723644L12PF IDT, Integrated Device Technology Inc, IDT723644L12PF Datasheet - Page 28

• Manufacturer Part Number: IDT723644L12PF
• Description: IC FIFO SYNC 2048X36 128QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 7200r

Specifications of IDT723644L12PF

• Function: Synchronous
• Memory Size: 72K (2K x 36)
• Data Rate: 83MHz
• Access Time: 12ns
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 723644L12PF

NOTES:
1. t
2. If Port B size is word or byte, t
IDT723624/723634/723644 CMOS SyncBiFIFO™ WITH BUS-MATCHING
256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2
A0-A35
B0-B35
and rising CLKA edge is less than t
W/RB
CLKA
CLKB
W/RA
SKEW1
MBB
MBA
CSB
ENB
CSA
ENA
EFB
FFA
is the minimum time between a rising CLKB edge and a rising CLKA edge for FFA to transition HIGH in the next CLKA cycle. If the time between the rising CLKB edge
LOW
LOW
HIGH
FIFO1 Full
HIGH
LOW
HIGH
Previous Word in FIFO1 Output Register
t
CLKH
Figure 20. FFA
t
CLK
t
ENS2
SKEW1
t
CLKL
is referenced from the rising CLKB edge that reads the last word or byte of the long word, respectively.
SKEW1
FFA
FFA
FFA Flag Timing and First Available Write when FIFO1 is Full (IDT Standard Mode)
FFA
, then FFA may transition HIGH one CLKA cycle later than shown.
t
t
ENH
SKEW1
t
A
(1)
1
t
CLKH
t
CLK
t
CLKL
28
2
Next Word From FIFO1
t
WFF
t
t
ENS2
ENS2
t
DS
To FIFO1
Write
COMMERCIAL TEMPERATURE RANGE
t
t
WFF
t
DH
t
ENH
ENH
3270 drw22