ICS831742I Data Sheet

4:2 DIFFERENTIAL CLOCK/DATA MULTIPLEXER

ICS831742AGI JULY 10, 2012

2

©2012 Integrated Device Technology, Inc.

Table 1. Pin Descriptions

NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.

Table 2. Pin Characteristics

Number

Name

Type

Description

1, 9, 15

GND

Power

Power supply ground.

2

CLK0

Input

Pulldown

Non-inverting clock/data input.

3

nCLK0

Input

Pulldown/Pullup

4, 12,

16, 21

Power

Positive power supply.

5

CLK1

Input

Pulldown

Non-inverting clock/data input.

6

nCLK1

Input

Pulldown/Pullup

7

CLK2

Input

Pulldown

Non-inverting clock/data input.

8

nCLK2

Input

Pulldown/Pullup

10

CLK3

Input

Pulldown

Non-inverting clock/data input.

11

nCLK3

Input

Pulldown/Pullup

13

nOEA

Input

Pullup

Output enable for the QA output. See Table 3A for function.

LVCMOS/LVTTL interface levels.

14

nOEB

Input

Pullup

Output enable for the QB output. See Table 3B for function.

LVCMOS/LVTTL interface levels.

17, 18

QA, nQA

Output

Differential output pair. HCSL interface levels.

19, 20

QB, nQB

Output

Differential output pair. HCSL interface levels.

22, 24

SEL0, SEL1

Input

Pulldown

Differential clock/data Input select. See Table 3C for function.

LVCMOS/LVTTL interface levels.

23

IREF

Input

An external fixed precision resistor (475

reference current used for the differential current-mode QX, nQX outputs.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

Input Capacitance

4

pF

Input Pullup Resistor

51

k



51

k

