Datasheet CBT6832 Datasheet (Philips)

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INTEGRATED CIRCUITS

CBT6832

16-bit 1-of-2 multiplexer/demultiplexer
with precharged outputs and Schottky
undershoot protection for live insertion

Product specification 2000 Jul 18

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Philips Semiconductors Product specification

16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion

FEA TURES

•5 Ω typical r

on

•Pull-up on B ports

•Undershoot protection on A port only: –1.5 V

•Near zero propagation delay

•Controlled enable rate

•V

operating range: +4.5 V to +5.5 V

CC

•> 100 MHz bandwidth (or clock rate) at 20 pF load capacitance

•56-pin TSSOP package

•Bias voltage pre-charges the B output when the channel is

disabled

•Latch-up protection exceeds 100 mA per JESD78

•ESD protection exceeds 2000 V HBM per JESD22-A114,

200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101

APPLICATION

•Provides PCI hot-plugging

DESCRIPTION

The CBT6832 is a 16-bit 1-of-2 multiplexer/demultiplexer with
precharged outputs and Schottky protection for live insertion.
Advantages of the CBT6832 include a propagation delay of 250 ps,
resulting from 5 Ω channel resistance, and low I/O capacitance. A
port demultiplexes to either 1B and 2B, or to both. The switch is
bi-directional.

PIN CONFIGURATION

1

2B1

2
3

2A

4

3B1

5

4B1

6

4A

7

5B1

8

6B1

9

6A

10

7B1

11

8B1

12 45
13
14

V

CC

15

9B1

16

10B1

17

10A

18 39

11B1

19 38

12B1

20
21

13B1

22

14B1

23

14A

24

15B1

25 32
26 31 16B216A
27 30 V

V

BIAS1

28 29SEL1 SEL2

1A

561B1

1B2

55

2B2

54

3A

53

3B2

52

4B2

51

5A

50

5B2

49

6B2

48

7A

47

7B2

46

8B28A
GND

44GND

V

43

CC

42

9A
9B2

41
40

10B2
11A
11B2
12B2

3712A
36

13A

35

13B2

34

14B2

33

15A
15B216B1

BIAS2

CBT6832

SW00478

QUICK REFERENCE DA TA

SYMBOL PARAMETER

t

PLH

t

PHL

C

IN

C

B B capacitance Outputs disabled; VO = 0 V 8 pF

OUT

C

OUT

Propagation delay
An to Bn or Bn to An

CL = 50 pF; VCC = 5 V 0.25 ns

Input capacitance VI = 0 V or V

A A capacitance Outputs disabled; VO = 0 V 13 pF
C on 1 One channel on capacitance One B enabled; VO = 0 V 21 pF
C on 2 Both channels on capacitance Both B channels enabled; VO = 0 V 34 pF

CONDITIONS

T

= 25°C; GND = 0 V

amb

CC

TYPICAL UNIT

4.5 pF

ORDERING INFORMATION

PACKAGES TEMPERATURE RANGE ORDER CODE DWG NUMBER

56-Pin Plastic TSSOP Type II 0°C to +70°C CBT6832 DGG SOT364-1

2000 Jul 18 853-2204 24151

2

Philips Semiconductors Product specification

SYMBOL

PARAMETER

UNIT

16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion

PIN DESCRIPTION

PIN NUMBER SYMBOL NAME AND FUNCTION

3, 6, 9, 12, 17,
20, 23, 26, 33,
36, 39, 42, 47,

1A1–16A1 Inputs

50, 53, 56

1, 2, 4, 5, 7, 8,
10, 11, 15, 16,
18, 19, 21, 22,

1B1–16B1 Outputs

24, 25

31, 32, 34, 35,
37, 38, 40, 41,
45, 46, 48, 49,

1B2–16B2 Outputs

51, 52, 54, 55

V

,

27, 30

BIAS1

V

BIAS2

Precharge bias voltage inputs

28, 29 SEL1, SEL2 Select-control inputs
13, 44 GND Ground (0 V)
14, 43 V

CC

Positive supply voltage

FUNCTION TABLE

SEL1 SEL2 FUNCTION

L H nA to nB1
H L nA to nB2
L L nA to nB1 and nB2
H H nB1, nB2 = V

BIAS

LOGIC DIAGRAM

1A

16A

SEL1

SEL2

CBT6832

V

BIAS1

PULLUP

V

BIAS2

PULLUP

V

BIAS1

PULLUP

V

BIAS2

PULLUP

SV01802

1B1

1B2

16B1

16B2

ABSOLUTE MAXIMUM RA TINGS

SYMBOL

V

CC

I

IK

V

I

V

OUT

I

OUT

T

stg

Θ

JA

DC supply voltage –0.5 to +7.0 V
DC input diode current VI < 0 –50 mA
DC input voltage
DC output voltage
DC output current output in Low state 120 mA
Storage temperature range –65 to +150 °C
Power dissipation 95 °C/W

PARAMETER CONDITIONS RATING UNIT

3

3

1, 2

–0.5 to +7.0 V

output in Off or High state –0.5 to +7.0 V

NOTES:

1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.

3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

RECOMMENDED OPERATING CONDITIONS

LIMITS

MIN MAX

V

T

CC

V

V

amb

DC supply voltage 4.5 5.5 V
High-level input voltage 2.0 V

IH

Low-level Input voltage 0.8 V

IL

Operating free-air temperature range 0 +70 °C

2000 Jul 18

3

Philips Semiconductors Product specification

SYMBOL

PARAMETER

TEST CONDITIONS

UNIT

ronSwitch on resistance

2

16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion

DC ELECTRICAL CHARACTERISTICS

Over operating temperature range T

V

V

I

IH

I

I

OZH

I

OZL

V

Capacitance3 (T

C

C

OFF

C

OFF

Input HIGH voltage Guaranteed logic HIGH level 2.0 V

IH

Input LOW voltage Guaranteed logic LOW level –0.5 0.8 V

IL

Input HIGH current VCC = 5.5 V, VIN = V
Input LOW current VCC = 5.5 V, VIN = GND ±5 µA

IL

High impedance output current

Low impedance output current
Input clamp voltage VCC = 4.5 V; II = –18 mA –1.2 V

IK

= +25°C; f = 1 MHz)

amb

Input capacitance VI = 0 V 4.5 pF

IN

B B capacitance, switch off VI = 0 V 8 pF

A A capacitance, switch off VI = 0 V 13 pF
CON 1 One B channel on capacitance VI = 0 V 21 pF
CON 2 Both B channels on capacitance VI = 0 V 34 pF

Power supply

I

CC

∆I

Quiescent supply current VCC = 5.5 V; VI = VCC or GND 200 µA
Additional supply current per input pin

CC

NOTES:

1. All typical values are at V

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

CC

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

3. These parameters are determined by device characterization, but is not production tested.

4. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.

5. Per TTL driven input (V

6. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency.

= 3.4 V, control inputs only); A and B pins do not contribute to ICC.

I

The A and B inputs generate no significant AC or DC currents as they transition. this parameter is not tested, but is guaranteed by design.

= 0°C to +70°C; VCC = 5 V ±10%; V

amb

5

= 5 V, T

= +25°C ambient and maximum loading.

amb

= 1.3 V to VCC, unless otherwise specified.

BIAS

LIMITS

MIN TYP

CC

1

A = 0 V or VCC MAX,
V

= V

BIAS1

B = 0 V or VCC MAX,
V

= V

BIAS1

BIAS2

BIAS2

= VCC MAX

= VCC MAX

–0.2 –2 mA

VCC = 4.5 V; VI = 0 V; II = 48 mA 5 8 Ω
VCC = 4.5 V; VI = 2.4 V; II = –15 mA 10 15 Ω

VCC = 5.5 V, one input at 3.4 V,
other inputs at VCC or GND

CBT6832

MAX

±5 µA

±1 µA

2.5 mA

2000 Jul 18

4

Philips Semiconductors Product specification

SYMBOL

PARAMETER

TEST CONDITIONS

UNIT

16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion

AC CHARACTERISTICS

VCC = 5.0 V ±0.5 V; GND = 0 V; CL = 50 pF, RL = 500 Ω

LIMITS

MIN TYP MAX

t
t

t

t

t

t

PLH
PHL

PZH
PZL

PHZ
PLZ

Propagation delay
A to B

Bus enable time
SEL to A, B

Bus disable time
SEL to A, B

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 50 pF, when driven by an ideal voltage source (zero output impedance).

AC WAVEFORMS

VM = 1.5 V, VIN = GND to 3.0 V

INPUT

OUTPUT

Waveform 1. Input (An) to Output (Bn) Propagation Delays

Output Control

(Low-level

Waveform 1

S1 at 7 V

(see Note)

Waveform 2

S1 at Open

(see Note)

1.5V

t

PLH

enabling

Output

Output

Note:

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.

1.5 V 1.5 V

t

PZL

t

PZH

1

1.5V

t

PHL

1.5V 1.5V

t

PLZ

1.5 V

1.2 V

t

PHZ

V

V

OL

OH

+ 0.3V

– 0.3V

3 V

0 V

V

OH

V

OL

SA00028

3V

0V

3.5V

V

OL

V

OH

0V

0.25 ns

1
1

1
1

TEST CIRCUIT AND WAVEFORMS

From Output
Under Test

C

= 50 pF

L

DEFINITIONS

= Load capacitance includes jig and probe capacitance;

C

L

see AC CHARACTERISTICS for value.

500 Ω

500 Ω

Load Circuit

TEST S1

t

pd

t

PLZ/tPZL

t

PHZ/tPZH

open

7 V

open

CBT6832

7.0

6.0

7.0

6.5

7 V

S1

Open

GND

SA00012

ns

ns

2000 Jul 18

SA00543

Waveform 2. 3-State Output Enable and Disable Times

5

Philips Semiconductors Product specification

16-bit

1-of-2 multiplexer/demultiplexer with precharged

CBT6832

outputs and Schottky undershoot protection for live insertion

TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1 mm SOT364-1

2000 Jul 18

6

Philips Semiconductors Product specification

16-bit

1-of-2 multiplexer/demultiplexer with precharged

outputs and Schottky undershoot protection for live insertion

NOTES

CBT6832

2000 Jul 18

7

Philips Semiconductors Product specification

16-bit

1-of-2 multiplexer/demultiplexer with precharged

outputs and Schottky undershoot protection for live insertion

Data sheet status

Data sheet
status

Objective
specification

Preliminary
specification

Product
specification

Product
status

Development

Qualification

Production

Definition

This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.

This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make changes at any time without notice in order to
improve design and supply the best possible product.

This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.

[1]

CBT6832

[1] Please consult the most recently issued datasheet before initiating or completing a design.

Definitions

Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For

detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one

or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.

Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.

Disclaimers

Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can

reasonably be expected to result in personal injury . Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.

Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.

Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone [phone]

 Copyright Philips Electronics North America Corporation 2000

All rights reserved. Printed in U.S.A.

Date of release: 07-00

Document order number: 9397-750 07335

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2000 Jul 18

8