723631L15PF Integrated Device Technology (Idt), 723631L15PF Datasheet - Page 18

• Manufacturer Part Number: 723631L15PF
• Description: FIFO Mem Sync Dual Depth Bi-Dir 512 x 36 120-Pin TQFP
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 723631L15PF

• Package: 120TQFP
• Configuration: Dual
• Bus Directional: Bi-Directional
• Density: 18 Kb
• Organization: 512x36
• Data Bus Width: 36 Bit
• Timing Type: Synchronous
• Expansion Type: Depth
• Typical Operating Supply Voltage: 5 V
• Operating Temperature: 0 to 70 °C

NOTE:
1. t
NOTES:
1. t
2. Depth is 512 for the IDT723631, 1,024 for the IDT723641, and 2,048 for the IDT723651.
3. Y is the value loaded in the Almost-Full flag Offset register.
CLKA
CLKB
CLKA
IDT723631/723641/723651 CMOS SyncFIFO™
512 x 36, 1,024 x 36 and 2,048 x 36
CLKB
RTM
RTM
and rising CLKA edge is less than t
and rising CLKA edge is less than t
SKEW1
SKEW2
A0 - A35
B0 - B35
AF
IR
CLKA
CLKB
W/RA
MBF1
W/RB
MBA
CSB
MBB
CSA
ENA
ENB
is the minimum time between a rising CLKB edge and a rising CLKA edge for IR to transition HIGH in the next CLKA cycle. If the time between the rising CLKB edge
is the minimum time between a rising CLKB edge and a rising CLKA edge for AF to transition HIGH in the next CLKA cycle. If the time between the rising CLKB edge
Figure 14. AF
Figure 13. IR Timing from the End of Retransmit Mode when One or More Write Locations are Available
AF AF
AF
AF Timing from the End of Retransmit Mode when (Y+1) or More Write Locations are Available
t
EN
t
(Depth -Y) or More Words Past First Restransmit Word
RMS
t
RMS
SKEW1
SKEW2
(2)
t
t
ENS2
t
t
ENS2
FIFO Filled to First Restransmit Word
ENS2
ENS2
, then IR may transition HIGH one CLKA cycle later than shown.
, then AF may transition HIGH one CLKA cycle later than shown.
FIFO Output Register
t
Figure 15. Timing for Mail1 Register and MBF1
DS
W1
t
SKEW2
t
SKEW1
t
t
RMH
RMH
t
MDV
(1)
(1)
t
t
t
t
DH
t
ENH2
ENH2
ENH2
ENH2
t
PMF
t
1
PMR
1
18
W1 (Remains valid in Mail1 Register after read)
MBF1
MBF1 Flag
MBF1
MBF1
2
2
t
PIR
t
ENS1
t
PAE
(Y+1) or More Write Locations Available
One or More Write Locations Available
t
ENH1
COMMERCIAL AND INDUSTRIAL
t
PMF
TEMPERATURE RANGES
t
DIS
3023 drw18
3023 drw16
3023 drw17