Micrel, Inc.

SY55854U

March 2007

2

M9999-032207-E

Part Number

Package

Type

Temperature

Range

Package

Lead

Finish

SY55854UYI

Y16-1

Industrial

854U

Sn-Pb

Y16-1

Industrial

854U

Sn-Pb

Y16-1

Industrial

854U with

Pb-Free bar-line indicator

NiPdAu

Pb-Free

Y16-1

Industrial

854U with

Pb-Free bar-line indicator

NiPdAu

Pb-Free

Notes:

2. Tape and Reel.

3. Pb-Free package recommended for new designs.

Pin Configuration

16-Pin EPAD-QSOP (Y16-1)

Pin Description

Pin Number

Pin Name

Pin Function

2, 3

D0, /D0

CML/PECL/LVPECL Input (Differential). This is one of the data inputs to the crosspoint.

It will be switched either to the Q0 output, the Q1 output, both outputs, or neither output,

depending on the state of the S0 and S1 inputs.

4, 5

S0, /S0

CML/PECL/LVPECL Input (Differential). This selects input chooses which data input

switches to the Q0 output. S0 logic low selects the D0 input, while S0 logic high selects

the B input.

6, 7

/D1, D1

CML/PECL/LVPECL Input (Differential). This is the other data input to the crosspoint. It

will be switched either to the Q0 output, the Q1 output, both outputs, or neither output,

depending on the state of the S0 and S1 inputs.

1, 8

GND

Ground.

9, 16

VCC

Power Supply.

10, 11

Q1, /Q1

CML Output (Differential). This is the other output from the crosspoint. Input S1 selects

either the D0 or D1 input to be switched to this output.

12, 13

/S1, S1

CML/PECL/LVPECL Input (Differential). This select input chooses which data input

switches to the Q1 output. S1 logic low selects the D0 input, while S1 logic high selects

the D1 input.

14, 15

/Q0, Q0

CML Output (Differential). This is one output from the crosspoint. Input S0 selects either

the D0 or the D1 input to be switched to this output.