IDT723622/723632/723642 CMOS SyncBiFIFO™
256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2
COMMERCIAL TEMPERATURE RANGE
SWITCHING CHARACTERISTICS OVER RECOMMENDED RANGES OF SUPPLY
VOLTAGE AND OPERATING FREE-AIR TEMPERATURE, CL = 30 PF
(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C)
Commercial
IDT723622L15
IDT723632L15
IDT723642L15
Symbol
Parameter
Min.
Max.
Unit
tA Access Time, CLKA↑ to A0-A35 and CLKB↑ to B0-B35
2
10
ns
tPIR Propagation Delay Time, CLKA↑ to IRA and CLKB↑ to IRB
2
8
ns
tPOR Propagation Delay Time, CLKA↑ to ORA and CLKB↑ to ORB
1
8
ns
tPAE Propagation Delay Time, CLKA↑ to AEA and CLKB↑ to AEB
1
8
ns
tPAF Propagation Delay Time, CLKA↑ to AFA and CLKB↑ to AFB
1
8
ns
tPMF Propagation Delay Time, CLKA↑ to MBF1 LOW or MBF2 HIGH and
CLKB↑ to MBF2 LOW or MBF1 HIGH
0
8
ns
tPMR Propagation Delay Time, CLKA↑ to B0-B35(1) and CLKB↑ to A0-A35(2)
2
10
ns
tMDV Propagation Delay Time, MBA to A0-A35 valid and MBB to B0-B35 Valid
2
10
ns
tRSF Propagation Delay Time, RST1 LOW to AEB LOW, AFA HIGH, and
MBF1 HIGH, and RST2 LOW to AEA LOW, AFB HIGH, and MBF2 HIGH
1
15
ns
tEN Enable Time, CSA and W/RA LOW to A0-A35 Active and CSB LOW
and W/RB HIGH to B0-B35 Active
2
10
ns
tDIS Disable Time, CSA or W/RA HIGH to A0-A35 at high-impedance and
CSB HIGH or W/RB LOW to B0-B35 at high-impedance
1
8
ns
NOTES:
1. Writing data to the mail1 register when the B0-B35 outputs are active and MBB is HIGH.
2. Writing data to the mail2 register when the A0-A35 outputs are active and MBA is HIGH.
8