ICS85214

LOW SKEW, 1-TO-5, DIFFERENTIAL-TO-HSTL FANOUT BUFFER

IDT™ / ICS™ HSTL FANOUT BUFFER

2

ICS85214AG

REV. B

JUNE 3, 2016

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, 2

Q0, Q0

Output

Differential output pair. HSTL interface levels.

3, 4

Q1, Q1

Output

Differential output pair. HSTL interface levels.

5, 6

Q2, Q2

Output

Differential output pair. HSTL interface levels.

7, 8

Q3, Q3

Output

Differential output pair. HSTL interface levels.

9, 10

Q4, Q4

Output

Differential output pair. HSTL interface levels.

11

GND

Power

Power supply ground.

12

CLK_SEL

Input

Pulldown

Clock select input. When HIGH, selects differential CLK1input. When LOW,

selects CLK0, CLK0 inputs. LVCMOS/LVTTL interface levels.

13, 17

nc

Unused

No connect.

14

CLK0

Input

Pullup

Inverting differential clock input.

15

CLK0

Input

Pulldown

Non-inverting differential LVPECL clock input.

16

CLK1

Input

Pulldown

Single-ended clock input. LVCMOS/LVTTL interface levels.

18

VDD

Power

Positive supply pin.

19

CLK_EN

Input

Pulldown

Synchronizing clock enable. When LOW, clock outputs follow clock input.

When HIGH, Qx outputs are forced low, Qx outputs are forced high.

LVTTL/LVCMOS interface levels.

20

VDDO

Power

Output supply pin.

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum

Units

CIN

Input Capacitance

4

pF

RPULLUP

Input Pullup Resistor

51

k



RPULLDOWN Input Pulldown Resistor

51

k

