IDT72605(2013) 데이터 시트보기 (PDF) - Integrated Device Technology

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IDT72605
(Rev.:2013)

CMOS SyncBiFIFO 256 x 18 x 2 512 x 18 x 2

Integrated Device Technology 

IDT72605/72615 CMOS SYNCBiFIFO™

256 x 18x 2 and 512 x 18 x 2

CLKB

tCLKH

tCLK

tCLKL

INDUSTRIAL TEMPERATURE RANGE

R/WB

ENB

EFBA

DB0-DB17

OEB

CLKA

tCS

tCH

NO OPERATION

tEF

tEF

tOLZ

tA

tOE

VALID DATA

tOHZ

tSKEW1

NO WRITE OPERATION

Figure 7. Port B (A→B) Read Timing

WRITE

2704 drw 10

CLKA

A0, A1, A2

R/WA

CSA, ENA

tCS

tDS

DA0-DA17

D0 (First Valid Write)

D1

D2

tSKEW1

tFRL

(1)

CLKB

R/WB

ENB

EFAB

DB0-DB17

OEB

tEF

tOLZ

tCS

tA

tOE

tA

D0

NOTE:

1. When tSKEW1 ≥ minimum specification, tFRL(Max.) = tCLK + tSKEW1

tSKEW1 < minimum specification, tFRL(Max.) = 2tCLK + tSKEW1 or tCLK + tSKEW1

The Latency Timing applies only at the Empty Boundary (EF = LOW).

Figure 8. A→B First Data Word Latency after Reset for Simultaneous Read and Write

11

D3

D1

2704 drw 11

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