ASM4SSTVF16859 datasheet(4/16 Pages) ALSC

4 / 16 page

August 2004

ASM4SSTVF16859

rev 2.0

DDR 13-Bit to 26-Bit Registered Buffer

3 of 16

Pin Descriptions

64-pin TSSOP

Pin #

Pin Name

Type

Description

1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 14, 16,

17, 19, 20, 21, 22, 23, 24, 25, 28, 29, 30,

31, 32

Q (13:1)

Data output.

7, 15, 26, 34, 39, 43, 50, 54, 58, 63

GND

Ground to entire chip.

6, 18, 27, 33, 38, 47, 59, 64

VDDQ

Output supply voltage, 2.5V nominal.

35, 36, 40, 41, 42, 44, 52, 53, 55, 56, 57,

61, 62

D(13:1)

Data input.

CLK

Positive master clock input.

CLKB

Negative master clock input.

37, 46, 60

VDD

Core supply voltage, 2.5V nominal.

RESETB

Rest Active low.

VREF

Input reference voltage, 1.25V nominal.

56-pin MLF2

Pin #

Pin Name

Type

Description

1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16,

18, 19, 20, 21, 22, 50, 51, 52, 53, 54, 56

Q (13:1)

Data output.

37, 48

GND

Ground to entire chip.

9, 17, 23, 27, 34, 44, 49, 55

VDDQ

Output supply voltage, 2.5V nominal.

24, 25, 28, 29, 30, 31, 39, 40, 41, 42, 43, 46, 47

D(13:1)

Data input.

CLK

Positive master clock input.

CLKB

Negative master clock input.

26, 33, 45

VDD

Core supply voltage, 2.5V nominal.

RESETB

Rest Active low.

VREF

Input reference voltage, 1.25V nominal.

Center Pad

Ground (VFQFN package only)

ASM4SSTVF16859 Datasheet(PDF) 4 Page - Alliance Semiconductor Corporation

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