72605L20 View Datasheet(PDF) - Integrated Device Technology

Part Name

Description

View to exact match

72605L20

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

Integrated Device Technology 

IDT72605/IDT72615 CMOS SyncBiFIFO

256 x 18 x 2 and 512 x 18 x 2

COMMERCIAL TEMPERATURE RANGE

CLKB

R/WB

ENB

FFBA

tCS

tCH

tFF

tFF

tFF

BYPASS FLAG

FIFO FLAG

tFF

BYPB

DB0 -DB17

CLKA

A0 , A1 , A2 ,

CSA

tSKEW1

tCS

tDS

DATA INPUT

tSKEW1

tSKEW1

tSKEW1

A2 , A1 , A0 , = 001

tCS

tCS

R/WA

ENA

EFBA

DA0 -DA17

tEF

FIFO FLAG

OEA

tEF

BYPASS FLAG

tOLZ

tCS

tEF

tA

tOE

tEF

FIFO FLAG

DATA OUTPUT

t OHZ

2704 drw 15

NOTES:

1. When CSA is brought HIGH, A→B Bypass mode will switch to FIFO mode on the following CLKA going LOW-to-HIGH.

2. After the bypass operation is completed, the BYPB goes from LOW-to-HIGH; this will reset all bypass flags. The bypass path becomes available for

the next bypass operation.

3. When A-side changed from bypass mode into FIFO mode, B-side only has one cycle to read the bypass data. On the next cycle, B-side will be

forced back to FIFO mode.

Figure 11. B→A Bypass Timing

5.18

17

Share Link: