EM742SP16 datasheet(5/10 Pages) EMLSI

Part #	EM742SP16

Description	256K x 16Bit Multiplexed Single Transistor RAM

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Manufacturer	EMLSI [Emerging Memory & Logic Solutions Inc]

Direct Link	http://www.emlsi.com

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5 / 10 page

EM742SP16

256Kx16 Multiplexed STRAM

5

AC OPERATING CONDITIONS

Test Conditions (Test Load and Test Input/Output Reference)

Input Pulse Level : 0.2V to VCCQ-0.2V

Input Rise and Fall Time : 5ns

Input and Output reference Voltage : VCCQ/2

Output Load (See right) : CL1) = 30pF

1. Including scope and Jig capacitance

CL1)

Parameter List

Symbol

Speed

Unit

Min

Max

Common

AVD Low pulse

tAVD

15

1000

ns

Address setup to AVD rising edge

tAVDS

15

-

ns

Address hold from AVD rising edge

tAVDH

5

-

ns

Chip enable setup to AVD rising edge

tCSS

7

-

ns

Read

AVD low to data valid time

tACC1

-

70

ns

Address access time

tACC2

-

70

ns

Chip enable to data output

tACC3

-

70

ns

Address disable to output enable

tADOE

0

-

ns

Output enable to valid output

tOE

-

25

ns

UB, LB enable to data output

tUBLBA

-

25

ns

UB, LB enable to low-Z output

tBLZ

5

-

ns

Output enable to low-Z output

tOLZ

5

-

ns

Chip disable to high-Z output

tHZ

-

15

ns

UB, LB disable to high-Z output

tBHZ

-

15

ns

Output disable to high-Z output

tOHZ

-

15

ns

Write

AVD low to end of write

tACW1

70

-

ns

Address valid to end of write

tACW2

70

-

ns

Chip enable to end of write

tACW3

70

-

ns

Write pulse low

tWRL

45

-

ns

UB, LB valid to end of write

tBW

50

-

ns

Data to write time overlap

tDW

25

-

ns

Data hold from write time

tDH

0

-

ns

AC CHARACTERISTICS (Vcc = 1.7 to 1.9V, Gnd = 0V, TA = -25C to +85oC)

Dout

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