IDT723622(2015) Просмотр технического описания (PDF) - Integrated Device Technology

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IDT723622
(Rev.:2015)

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

Integrated Device Technology 

IDT723622/723632/723642 CMOS SyncBiFIFO™

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

COMMERCIAL TEMPERATURE RANGE

TIMING REQUIREMENTS OVER RECOMMENDED RANGES OF SUPPLY

VOLTAGE AND OPERATING FREE-AIR TEMPERATURE

(Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C)

Symbol

Parameter

Commercial

IDT723622L15

IDT723632L15

IDT723642L15

Min.

Max.

Unit

fS

Clock Frequency, CLKA or CLKB

—

66.7

MHz

tCLK Clock Cycle Time, CLKA or CLKB

15

—

ns

tCLKH Pulse Duration, CLKA or CLKB HIGH

6

—

ns

tCLKL Pulse Duration, CLKA and CLKB LOW

6

—

ns

tDS

Setup Time, A0-A35 before CLKA↑ and B0-B35 before CLKB↑

4

—

ns

tENS1 Setup Time, CSA and W/RA before CLKA↑; CSB and W/RB before CLKB↑

4.5

—

ns

tENS2 Setup Time, ENA and MBA, before CLKA↑; ENB and MBB before CLKB↑

4.5

—

ns

tRSTS Setup Time, RST1 or RST2 LOW before CLKA or CLKB (2)

5

—

ns

tFSS Setup Time, FS0 and FS1 before RST1 and RST2 HIGH

7.5

—

ns

tDH

Hold Time, A0-A35 after CLKA↑ and B0-B35 after CLKB↑

1

—

ns

tENH Hold Time, CSA, W/RA, ENA, and MBA after CLKA↑; CSB, W/RB, ENB,

and MBB after CLKB↑

1

—

ns

tRSTH Hold Time, RST1 or RST2 LOW after CLKA↑ or CLKB↑(2)

4

—

ns

tFSH Hold Time, FS0 and FS1 after RST1 and RST2 HIGH

2

—

ns

tSKEW1(2) Skew Time, between CLKA↑ and CLKB↑ for ORA, ORB, IRA, and IRB

7.5

—

ns

tSKEW2(2,3) Skew Time, between CLKA↑ and CLKB↑ for AEA, AEB, AFA, and AFB

12

—

ns

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. Designsimulated,nottested.

7

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