IDT72V3612L12PFG IDT, Integrated Device Technology Inc, IDT72V3612L12PFG Datasheet - Page 20

• Manufacturer Part Number: IDT72V3612L12PFG
• Description: IC FIFO 64X36X2 12NS 120QFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: 72Vr

Specifications of IDT72V3612L12PFG

• Function: Asynchronous
• Memory Size: 4.6K (64 x 36 x2)
• Data Rate: 83MHz
• Access Time: 12ns
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 72V3612L12PFG

NOTES:
1. t
2. FIFO2 Write (CSB = LOW, W/RB = HIGH, MBB = LOW), FIFO2 read (CSA = LOW, W/RA = LOW, MBA = LOW).
NOTES:
1. t
2. FIFO1 Write (CSA = LOW, W/RA = HIGH, MBA = LOW), FIFO1 read (CSB = LOW, W/RB = LOW, MBB = LOW).
NOTES:
1. t
2. FIFO2 Write (CSB = LOW, W/RB = HIGH, MBB = LOW), FIFO2 read (CSA = LOW, W/RA = LOW, MBA = LOW).
CLKB
CLKA
CLKA
CLKB
CLKB
CLKA
IDT72V3612 3.3V, CMOS SyncBiFIFO
64 x 36 x 2
ENB
ENA
ENB
AEA
ENA
AFA
ENB
AFB
ENA
rising CLKA edge is less than t
rising CLKB edge is less than t
rising CLKA edge is less than t
SKEW2
SKEW2
SKEW2
is the minimum time between a rising CLKB edge and a rising CLKA edge for AEA to transition HIGH in the next CLKA cycle. If the time between the rising CLKB edge and
is the minimum time between a rising CLKA edge and a rising CLKB edge for AFA to transition HIGH in the next CLKA cycle. If the time between the rising CLKA edge and
is the minimum time between a rising CLKB edge and a rising CLKA edge for AFB to transition HIGH in the next CLKB cycle. If the time between the rising CLKB edge and
[64-(X+1)] Words in FIFO2
[64-(X+1)] Words in FIFO1
t
t
ENS2
t
ENS2
ENS2
SKEW2
SKEW2
SKEW2
, then AEA may transition HIGH one CLKA cycle later than shown.
, then AFA may transition HIGH one CLKA cycle later than shown.
, then AFB may transition HIGH one CLKB cycle later than shown.
t
TM
t
SKEW2
t
ENH2
t
t
t
PAF
X Words in FIFO2
Figure 12. Timing for AEA
ENH2
PAF
ENH2
Figure 14. Timing for AFB
Figure 13. Timing for AFA
(1)
1
t
t
ENS2
ENS2
AEA
AEA
AEA when FIFO2 is Almost Empty
AEA
AFB
AFB
AFB
AFB when FIFO2 is Almost Full
AFA
AFA
AFA
AFA when FIFO1 is Almost Full
20
(64-X) Words in FIFO1
t
(64-X) Words in FIFO2
SKEW2
t
SKEW2
t
ENH2
t
ENH2
2
(1)
t
(1)
PAE
1
1
COMMERCIAL TEMPERATURE RANGE
(X+1) Words in FIFO2
t
ENS2
2
t
PAF
2
t
PAF
FEBRUARY 12, 2009
t
t
ENH2
PAE
4659 drw 15
4659 drw 16
4659 drw 17