Datasheet PI5C6801CL, PI5C6801CQ Datasheet (PERICOM)

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PI5C6801C

10-Bit Bus Switch with Precharged Outputs

for Live Insertion and –2V Undershoot Protection

Product Features

RON is 5 Ohm typical
 Undershoot protection on A-port only
 Industrial Operation Temperature: 40ºC to +85ºC
 Near Zero propagation delay
VCC Operating Range: +4.0V to +5.5V
 Outputs are pre-charged by bias voltage to minimize

signal distortion during live insertion

 Packages options:

-24-pin 150 mil-wide plastic QSOP (Q)

-24-pin 173 mil-wide plastic TSSOP (L)

Logic Diagram

13

A

1

23

Product Description

Pericoms Semiconductors PI5C series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.

The PI5C6801C is a 10-bit bus switch with low on-state resistance.
The bus switch creates no additional propagation delay. The device
also precharges the B port to a user-selectable bias voltage (BIASV)
to minimize live-insertion noise.

The switch is turned on by a single enable (ON) input. When ON is
LOW, the switch is on and port A is connnected to port B. When ON
is HIGH, the switch between port A and port B is open and the B port
is precharged to BIASV through the equivalent of a 10-kΩ resistor.

Product Pin Configuration

B

1

ON

A1

1
2

24
23

V
B1

CC

A

10

ON

Truth Table

Function ON B1 - B10

Connect L A1 - A10
Precharge H BIASV

Notes:

1. H = High Voltage Level
L = Low Voltage Level

(1)

14

A2

B

10

A3
A4
A5
A6
A7
A8
A9

A10

GND

3
4
5
6
7
8
9
10
11
12

24-Pin

L, Q

22
21
20
19
18
17
16
15
14
13

B2
B3
B4
B5
B6
B7
B8
B9
B10
BIASV

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PI5C6801C

10-Bit BusSwitch with PrechargedOutputs

for Live Insertion and -2V Undershoot Protection

Absolute Maximum Ratings Over Free-Air Temperature Range*

(Above which the useful life may be impaired. For user guidelines, not tested.)

Storage Temperature ............................................................ 65°C to +150°C

Supply Voltage Range ................................................................ 0.5V to +7V

DC Input Voltage

(1)

.................................................................................... 0.5V to +7V

Input Clamp Current, IIK (V1<0) .......................................................... 50mA

DC Output Current .............................................................................. 120mA

Power Dissipation

(2)

.................................................................................................. 0.5W

Note:

Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the de­vice. This is a stress rating only and functional
operation of the device at these or any other condi­tions above those indicated in the operational sec­tions of this specification is not implied. Exposure to
absolute maximum rating conditions for extended
periods may affect reliability.

Notes:

1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

2 . The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils.

Recommended Operating Conditions

retemaraPnoitpircseD.niM.xaMstinU

V

CC

egatlovylppuS45.5

VSAIBegatlovylppuS3.1V

V

HI

V

LI

T

A

egatlovtupnileveL-hgiH2

egatlovtupnilevel-woL

erutarepmetria-eerfgnitarepO0458C°

Electrical Characteristics (Over Recommended Operating Free-air Temperature Range)

retemaraPsnoitidnoCtseT.niMpyT

V

I

I

I
∆I

C

C

R

KI

I

O

CC

E

CC

I

)FFO(V

O

*

NO

V

V

V

V

sniplortnoC

V

sniplortnoCV

I

O

V

V

V5.4=IIAm81=8.1V

CC

V5.5=VIDNGroV5.5=5±

CC

CC

V5.5=I

CC

V5.5=rehtOV4.3tatupnienOVta

CC

=V0roV35.3

=V0roV3ffOhctiwS5.4

V4=V

CC

V5.4=

CC

VV4.2=VSAIBV5.4=

V0=02.0Am

O

A0=V

O

=V4.2I

I

=0V II=46Am5.58

V

I

V

=0V II=03Am58

I

V=

I

CC

=51Am982

I

DNGro001

CC

DNGro5.2Am

CC

V

8.0

=

.xaMstinU

µA

µA

Fp

Ω

V

=V4.2I

I

=51Am961

I

Notes:

* Measured by the voltage drop between the A and B terminals at the indicated current through the switch.

On-state resistance is determined by the lower of the voltages of the two (A or B) terminals.

E This is the increase in supply current for each input that is at the specified TTL voltage level rather the VCC or GND.
= All typical values are at VCC = 5V, TA = 25°C.

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PI5C6801C

tPZL

Output

Control

(Low Level

Enabling)

0V

1.5V

1.5V

1.5V

1.5V

t

PLZ

tPHZ

VOL

3.5V

0V

t

PZH

+0.3V

-0.3V

Output

Waveform 1

S1 at 6V

(see Note 2)

Output

Waveform 2

S1 at Open

(see Note 2)

V

OH

VOH

VOL

3V

10-Bit BusSwitch with PrechargedOutputs

for Live Insertion and -2V Undershoot Protection

Switching Characteristics (Over Recommended Operating Free-air Temperature Range, C

V

retemaraPsnoitidnoCtseT

)1(

)tupnI(morF)tuptuO(oT

CC

= 50pF)

L

V5.0±V5=V

CC

V4=

.niM.xaM.niM.xaM

t

dp

t

HZP

DNG=VSAIB

BroAAroB52.052.0

02032263

NOBroA

t

LZP

t

ZHP

V3=VSAIB02032263

DNG=VSAIB

02032263

NOBroA

t

ZLP

V3=VSAIB02032263

Notes:

1. This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical

on-state resistance of the switch and a load capacitance of 50pF, when driven by an ideal voltage source (zero output impedance).

Parameter Measurements

From Output
Under Test

CL = 50pF
(See note 1)

S1

7V

Open

GND

tseT1S

t

dp

t/

t

ZLP

LZP

t/

t

ZHP

HZP

nepO

V7

nepO

stinU

sn

LOAD CIRCUIT

1.5V1.5V

t

PHL

3V

0V

V

V

OH

OL

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

Input

Output

1.5V

t

PLH

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

1.5V

Notes:

1. CL includes probe and jig capacitance.

2. Waveform 1 is for an output with internal conditions such that the output is LOW except when disabled by the output control.

Waveform 2 is for an output with internal conditions such that the output is HIGH except when disabled by the output control.
3 . All input pulses are supplied by generators having the following characteristics: PRR<10MHz, ZO = 50Ω, tr ≤ 2.5ns, tf ≤ 2.5ns.
4 . The outputs are measured one at a time with one transition per measurement.

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PS8374B 05/02/00

5. t

and t

6. t

7. t

PLZ
PZL
PLH

and t

and t

are the same as t

PHZ

are the same as ten.

PZH

are the same as tpd.

PHL

dis

.

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24-pin QSOP (Q)

24

1

.337
.344

.033

0.84

8.56

8.74

.150
.157

.053
.069

3.81

3.99

1.35

1.75

SEATING
PLANE

PI5C6801C

10-Bit BusSwitch with PrechargedOutputs

for Live Insertion and -2V Undershoot Protection

.015 x 45˚

0.38

0.178

.007

0.254

.010

0.406

.016

1.27

.050

.228
.244

5.79

6.20

.025

typical

0.635

X.XX
X.XX

.008
.012

DENOTES DIMENSIONS
IN MILLIMETERS

0.203

0.305

.004
.010

0.101

0.254

4

PS8374B 05/02/00

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24-pin TSSOP (L)

24

.169
.177

PI5C6801C

10-Bit BusSwitch with PrechargedOutputs

for Live Insertion and -2V Undershoot Protection

4.3

4.5

1

X.XX
X.XX

.303
.311

7.7

7.9

.0256

BSC

0.65

DENOTES CONTROLLING
DIMENSIONS IN MILLIMETERS

Ordering Information

traPegakcaPniPhtdiW

QC1086C5IP)Q(POSQ42lim-051

.007
.012

0.19

0.30

.002
.006

.047

1.20

Max

0.05

0.15

SEATING
PLANE

0.45

0.75

.252
BSC

6.4

.018
.030

.004
.008

0.09

0.20

LC1086C5IP)L(POSST42lim-371

Applications Information

Logic Inputs

The logic control inputs can be driven up to +5.5V regardless of
the supply voltage. For example, given a +5.0V supply, IN may
be driven low to 0V and high to 5.5V. Driving IN Rail-to-Rail®
minimizes power consumption.

Power-Supply Sequencing

Proper power-supply sequencing is recommended for all CMOS
devices. Always apply VCC before applying V
the input/output or control pins.

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax [phone] • http://www.pericom.com

and signals to

BIAS

Pericom Semiconductor Corporation

5

PS8374B 05/02/00