EM645FV16FU datasheet(2/11 Pages) EMLSI

Part #	EM645FV16FU

Description	256K x16 bit Super Low Power and Low Voltage Full CMOS Static RAM

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Manufacturer	EMLSI [Emerging Memory & Logic Solutions Inc]

Direct Link	http://www.emlsi.com

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2 / 11 page

EM645FV16FU Series

Low Power, 256Kx16 SRAM

2

merging Memory & Logic Solutions Inc.

FEATURES

• Process Technology : 0.18

µm Full CMOS

• Organization : 256K x 16 bit

• Power Supply Voltage : 2.7V ~ 3.6V

• Low Data Retention Voltage : 1.5V(Min.)

• Three state output and TTL Compatible

• Package Type : 44 TSOP2

GENERAL DESCRIPTION

The EM645FV16FU families are fabricated by EMLSI’s

advanced full CMOS process technology. The families

support industrial temperature range and Chip Scale

Package for user flexibility of system design. The fami-

lies also supports low data retention voltage for battery

back-up operation with low data retention current.

PRODUCT FAMILY

Product

Family

Operating

Temperature

Vcc Range

Speed

Power Dissipation

PKG Type

Standby

(ISB1, Min.)

Operating

(ICC1.Max.)

EM645FV16FU

Industrial (-40 ~ 85

oC)

2.7V~3.6V

55

1)/70ns

1

µA2)

3 mA

44-TSOP2

Name

Function

Name

Function

CS1,CS 2 Chip select inputs

Vcc

Power Supply

OE

Output Enable input

Vss

Ground

WE

Write Enable input

UB

Upper Byte (I/O 9~16)

A0~A17

Address Inputs

LB

Lower Byte (I/O 1~8)

I/O1~I/O 16 Data Inputs/outputs

NC

No Connection

I/O Circuit

Column Select

Data

Cont

Data

Cont

Pre-charge Circuit

Memory Array

2048 x 2048

A1

A2

A3

A4

A5

A6

A7

A0

A8

A9

A11 A12 A13 A14 A15 A16 A17

WE

OE

UB

LB

CS1

CS2

I/O1 ~ I/O8

I/O9 ~ I/O16

VCC

VSS

Control Logic

FUNCTIONAL BLOCK DIAGRAM

1. The parameter is measured with 30pF test load.

A10

48-FPBGA : Top view (ball down)

2. Typical values are measured at Vcc=3.3V, T A=25

o C and not 100% tested.

PIN DESCRIPTION

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

A4

A3

A2

A1

A0

CS1

I/O1

I/O2

I/O3

I/O4

VCC

VSS

I/O5

I/O6

I/O7

I/O8

A5

A6

A7

OE

UB

LB

I/O16

I/O15

I/O14

I/O13

VSS

VCC

I/O12

I/O11

I/O10

I/O9

44 - TSOP2

17

18

19

20

21

22

28

27

26

25

24

23

WE

A17

A16

A15

A14

A13

CS2

A8

A9

A10

A11

A12

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EM645FV16FU Datasheet(PDF) 2 Page - Emerging Memory & Logic Solutions Inc

EM645FV16FU Datasheet(HTML) 2 Page - Emerging Memory & Logic Solutions Inc

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