Integrated

Circuit

Systems, Inc.

ICS162835

Advance Information

0713—09/23/02

Recommended Applications:

• PC133 Registered Memory Module

• PC motherboards

• Servers and workstations

• Provides complete PC133 DIMM solution with

ICS2509, ICS2510 PLL.

Product Features:

• Meets JESD 82-2 specification

• Internal series resistors to reduce switching noise

• ±12 mA device capability

• Low voltage operation

• 0.50 mm pitch, 56-Pin TSSOP package

18-Bit 3.3V Registered Buffer

Function Table

1

Block Diagram

Notes:

1.

H = HIGH Voltage Level

L = LOW Voltage Level

X = Don't Care

Z = High-Impedance

↑ = LOW-to-HIGH Transition

2.

Output level before the indicated steady-state

input conditions were established, provided that

CLK is HIGH before LE went LOW.

3.

Output level before the indicated steady-state

input conditions were established.

s

t

u

p

n

Is

t

u

p

t

u

O

#

E

OE

LK

L

Cx

Ax

Y

HX

X

X

Z

LH

X

L

L

LH

X

H

H

LL

↑

LL

LL

↑

HH

LL

H

X

2

(

LL

L

X

3

(

Pin Configurations

56-Pin TSSOP

6.10 mm. Body, 0.50 mm. pitch

ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.

ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.

OE#

CLK

A1

LE

To 17 Other Channels

C1

1D

CK

Y1

Pin Description

s

e

m

a

N

n

i

Pn

o

i

t

p

i

r

c

s

e

D

#

E

O)

w

o

L

e

v

i

t

c

A

(

t

u

p

n

I

e

l

b

a

n

E

t

u

p

t

u

O

K

L

Ct

u

p

n

I

k

c

o

l

C

E

Lt

u

p

n

I

e

l

b

a

n

E

h

c

t

a

L

x

At

u

p

n

I

a

t

a

D

x

Ys

t

u

p

t

u

O

a

t

a

D

D

e

g

a

t

l

o

V

y

l

p

p

u

S

D

N

Gd

n

u

o

r

G

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

NC

NC

Y1

GND

Y2

Y3

VDD

Y4

Y5

Y6

GND

Y7

Y8

Y9

Y10

Y11

Y12

GND

Y13

Y14

Y15

VDD

Y16

Y17

GND

Y18

OE#

LE

GND

NC

A1

GND

A2

A3

VDD

A4

A5

A6

GND

A7

A8

A9

A10

A11

A12

GND

A13

A14

A15

VDD

A16

A17

GND

A18

CLK

GND