8

COMMERCIALTEMPERATURERANGE

BUS-MATCHING 2,048 x 36, 4,096 x 36, and 8,192 x 36

Symbol

Parameter

Min.

Max.

Min.

Max.

Unit

Clock Frequency, CLKA or CLKB

—

100

—

66.7

MHz

Clock Cycle Time, CLKA or CLKB

10

—

15

—

ns

Pulse Duration, CLKA or CLKB HIGH

4.5

—

6

—

ns

Pulse Duration, CLKA and CLKB LOW

4.5

—

6

—

ns

Setup Time, A0-A35 before CLKA

↑ and B0-B35 before CLKB↑

3—

4

—

ns

Setup Time, CSAand W/RA before CLKA

↑; CSBand W/RB before CLKB↑

4

—

4.5

—

ns

Setup Time, ENA, and MBA before CLKA

↑; ENB and MBB before CLKB↑

3

—

4.5

—

ns

Setup Time, RS1or PRSLOW before CLKA

5—

5

—

ns

Setup Time, FS0, FS1 and FS2 before RS1 HIGH

7.5

—

7.5

—

ns

Setup Time, BE/FWFT before RS1 HIGH

7.5

—

7.5

—

ns

Setup Time, FS0/SD before CLKA

↑

3—

4

—

ns

SetupTime,FS1/SENbeforeCLKA

↑

3—

4

—

ns

Setup Time, FWFT before CLKA

↑

0—

0

—

ns

Hold Time, A0-A35 after CLKA

↑ and B0-B35 after CLKB↑

0.5

—

1

—

ns

Setup Time, RTM before RT1; RTM before RT2

5—

5

—

ns

Hold Time, CSA, W/RA, ENA, and MBA after CLKA

↑; CSB, W/RB, ENB, and MBB

0.5

—

1

—

ns

afterCLKB

↑

Hold Time, RS1 or PRS LOW after CLKA

4—

4

—

ns

Hold Time, FS0, FS1 and FS2 after RS1 HIGH

2

—

2

—

ns

Hold Time, BE/FWFT after RS1 HIGH

2

—

2

—

ns

Hold Time, FS0/SD after CLKA

↑

0.5

—

1

—

ns

Hold Time, FS1/SENHIGH after CLKA

↑

0.5

—

1

—

ns

Hold Time, FS1/SEN HIGH after RS1 HIGH

2

—

2

—

ns

Hold Time, RTM after RT1; RTM after RT2

5—

5

—

ns

Skew Time between CLKA

↑ and CLKB↑ for EF/OR and FF/IR

5

—

7.5

—

ns

Skew Time between CLKA

↑ and CLKB↑ for AE and AF

12

—

12

—

ns

TIMING REQUIREMENTS OVER RECOMMENDED RANGES OF SUPPLY

VOLTAGE AND OPERATING FREE-AIR TEMPERATURE

NOTES:

1. Requirement to count the clock edge as one of at least four needed to reset a FIFO.

2. Skew time is not a timing constraint for proper device operation and is only included to illustrate the timing relationship between CLKA cycle and CLKB cycle.

3. Design simulated, not tested.

4. For 10ns speed grade: Vcc = 3.3V