BS62UV256JI datasheet(4/11 Pages) BSI

Part #	BS62UV256JI

Description	Ultra Low Power/Voltage CMOS SRAM 32K X 8 bit

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Manufacturer	BSI [Brilliance Semiconductor]

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Revision 2.2

April 2001

4

JEDEC

PARAMETER

NAME

PARAMETER

NAME

DESCRIPTION

BS62UV256 -15

MIN. TYP. MAX.

UNIT

t

AVAX

t

RC

Read Cycle Time

150

--

ns

t

AVQV

t

AA

Address Access Time

--

150

ns

t

ELQV

t

ACS

Chip Select Access Time

--

150

ns

t

GLQV

t

OE

Output Enable to Output Valid

--

100

ns

t

ELQX

t

CLZ

Chip Select to Output Low Z

10

--

ns

t

GLQX

t

OLZ

Output Enable to Output in Low Z

10

--

ns

t

EHQZ

t

CHZ

Chip Deselect to Output in High Z

0--

35

ns

t

GHQZ

t

OHZ

Output Disable to Output in High Z

0--

30

ns

t

AXOX

t

OH

Output Disable to Output Address Change

10

--

ns

Input Pulse Levels

Input Rise and Fall Times

Input and Output

Timing Reference Level

Vcc/0V

5ns

0.5Vcc

AC ELECTRICAL CHARACTERISTICS ( TA = 0oC to + 70oC, Vcc = 2.0V )

READ CYCLE

AC TEST CONDITIONS

AC TEST LOADS AND WAVEFORMS

KEY TO SWITCHING WAVEFORMS

WAVEFORM

INPUTS

OUTPUTS

MUST BE

STEADY

MAY CHANGE

FROM H TO L

DON T CAR

ANY CHANG

PERMITTED

E:

CHANGE :

E

STATE

DOES NOT

APPLY

MUST BE

STEADY

WILL BE

CHANGE

FROM H TO L

UNKNOWN

CENTER

LINE IS HIGH

IMPEDANCE

”OFF ”STATE

MAY CHANGE

FROM L TO H

WILL BE

CHANGE

FROM L TO H

,

Ω

800

THEVENIN EQUIVALENT

ALL INPUT PULSES

→

10%

90%

←

Vcc

GND

→

← 5ns

90%

10%

1.2V

OUTPUT

FIGURE 2

2V

OUTPUT

INCLUDING

JIG AND

SCOPE

Ω

1333

Ω

2000

5PF

FIGURE 1B

2V

OUTPUT

INCLUDING

JIG AND

SCOPE

Ω

1333

Ω

100PF

FIGURE 1A

2000

BSI

BS62UV256

R0201-BS62UV256

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