5962G9684501QYA View Datasheet(PDF) - Aeroflex Corporation

Part Name

Description

Manufacturer

5962G9684501QYA

4Kx8/9 Radiation-Hardened Dual-Port Static RAM with Busy Flag

Aeroflex Corporation 

AC CHARACTERISTICS BUSY CYCLE 1

(VDD = 5.0V±10%)

SYMBOL

PARAMETER

tBLA

tBZA

tB L C

tB Z C

tPS2,3

tWB

tWH

tBDD

BUSY LOW from address match

BUSY HIGH-Z from address mismatch

BUSY LOW from CE LOW

BUSY HIGH from CE HIGH

Port set-up for priority

R/W LOW after BUSY LOW

R/W HIGH after BUSY HIGH

BUSY HIGH to data valid

7C138 - 45

7C139 - 45

MIN MAX

25

25

25

25

5

0

40

45

7C138 - 55

7C139 - 55

MIN MAX

30

30

30

30

5

0

50

55

UNIT

ns

ns

ns

ns

ns

ns

ns

ns

Notes:

1 . Test conditions assume signal transition time of 5ns or less, timing reference levels of V DD /2, input pulse levels of 0.5V to VDD-0.5V, and output

loading of the specified IO L/IOH and 50-pF load capacitance.

2. Violation of t PS (with addresses matching) results in at least one of the two busy output signals asserting, only one port remains busy.

3. When violating tPS, the busy signal asserts on one port or the other; there is no guarantee on which port the busy signal asserts.

12

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