8

IDT723622/723632/723642 CMOS SyncBiFIFO™

256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2

COMMERCIALTEMPERATURERANGE

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.

SWITCHING CHARACTERISTICS OVER RECOMMENDED RANGES OF SUPPLY

VOLTAGE AND OPERATING FREE-AIR TEMPERATURE, CL = 30 PF

°C to +70°C)

Commercial

IDT723622L15

IDT723632L15

IDT723642L15

Symbol

Parameter

Min.

Max.

Unit

Access Time, CLKA

↑ to A0-A35 and CLKB↑ to B0-B35

2

10

ns

Propagation Delay Time, CLKA

↑ to IRA and CLKB↑ to IRB

2

8

ns

Propagation Delay Time, CLKA

↑ to ORA and CLKB↑ to ORB

1

8

ns

Propagation Delay Time, CLKA

↑ to AEA and CLKB↑ to AEB

18

ns

Propagation Delay Time, CLKA

↑ to AFA and CLKB↑ to AFB

18

ns

Propagation Delay Time, CLKA

↑ to MBF1 LOW or MBF2 HIGH and

0

8

ns

CLKB

↑ to MBF2 LOW or MBF1 HIGH

Propagation Delay Time, CLKA

210

ns

Propagation Delay Time, MBA to A0-A35 valid and MBB to B0-B35 Valid

2

10

ns

Propagation Delay Time, RST1 LOW to AEB LOW, AFA HIGH, and

1

15

ns

MBF1 HIGH, and RST2 LOW to AEA LOW, AFB HIGH, and MBF2 HIGH

Enable Time, CSA and W/RA LOW to A0-A35 Active and CSB LOW

2

10

ns

and W/RB HIGH to B0-B35 Active

Disable Time, CSA or W/RA HIGH to A0-A35 at high-impedance and

1

8

ns

CSB HIGH or W/RB LOW to B0-B35 at high-impedance