SCAN90CP02

SNLS168M – JANUARY 2004 – REVISED APRIL 2013

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PIN DESCRIPTIONS

UQFN

LQFP

Pin

Pin

Pin

I/O, Type

Description

Name

Number

Number

DIFFERENTIAL INPUTS COMMON TO ALL MUXES

IN0+

9

9

I, LVDS

Inverting and non-inverting differential inputs. LVDS, Bus LVDS, CML, or LVPECL

IN0

−

10

10

compatible.

IN1+

12

13

I, LVDS

Inverting and non-inverting differential inputs. LVDS, Bus LVDS, CML, or LVPECL

IN1

−

13

14

compatible.

SWITCHED DIFFERENTIAL OUTPUTS

OUT0+

27

32

O, LVDS

Inverting and non-inverting differential outputs. OUT0± can be connected to any one

OUT0

−

26

31

OUT1+

24

28

O, LVDS

Inverting and non-inverting differential outputs. OUT1± can be connected to any one

OUT1

−

23

27

DIGITAL CONTROL INTERFACE

SEL0,

6

7

I, LVTTL

Select Control Inputs

SEL1

5

6

EN0, EN1

7

8

I, LVTTL

Output Enable Inputs

15

17

PEM00,

4

4

I, LVTTL

Channel 0 Output Pre-emphasis Control Inputs

PEM01

3

3

PEM10,

2

2

I, LVTTL

Channel 1 Output Pre-emphasis Control Inputs

PEM11

1

1

TDI

19

22

I, LVTTL

Test Data Input to support IEEE 1149.1 features

TDO

20

23

O, LVTTL

Test Data Output to support IEEE 1149.1 features

TMS

18

21

I, LVTTL

Test Mode Select to support IEEE 1149.1 features

TCK

17

19

I, LVTTL

Test Clock to support IEEE 1149.1 features

TRST

21

24

I, LVTTL

Test Reset to support IEEE 1149.1 features

N/C

8, 28

Not Connected

POWER

11, 14,

12, 16,

I, Power

16, 22,

18, 25,

25

29

GND

5, 11, 15,

Ground reference to LVDS and CMOS circuitry.

20, 26,

For the UQFN package, the DAP is used as the primary GND connection to the

30

device. The DAP is the exposed metal contact at the bottom of the UQFN-28

package. It should be connected to the ground plane with at least 4 vias for optimal

AC and thermal performance.

(1)

The LVDS outputs do not support a multidrop (BLVDS) environment. The LVDS output characteristics of the SCAN90CP02 device have

been optimized for point-to-point backplane and cable applications.

(2)

Note that for the UQFN package GND is not an actual pin on the package, the GND is connected thru the DAP on the back side of the

UQFN package.

2

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