Philips
Semiconductors
CBT6832
16-bit 1-of-2 multiplexer/demultiplexer
with precharged outputs and Schottky
undershoot protection for live insertion
Product specification
2000 Jul 18
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
CBT6832
16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
2
2000 Jul 18
853-2204 24151
FEATURES
5
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
CC
operating range: +4.5 V to +5.5 V
> 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
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
2
3
4
5
6
7
8
9
10
11
12
45
46
47
48
49
50
51
52
53
54
55
56
1B1
2A
3B1
4B1
4A
5B1
6B1
6A
7B1
8B1
1A
1B2
2B2
3A
3B2
4B2
5A
6B2
5B2
7A
7B2
8B2
8A
13
14
15
16
17
18
39
40
41
42
43
44
GND
V
CC
9B1
10B1
10A
GND
9A
V
CC
9B2
10B2
11B1
19
38
11A
12B1
20
21
22
23
24
25
32
33
34
35
36
37
12A
13B1
14B1
14A
15B1
11B2
13B2
12B2
14B2
15A
15B2
16B1
26
31 16B2
16A
27
30 V
BIAS2
V
BIAS1
28
29
SEL1
SEL2
2B1
13A
SW00478
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
T
amb
= 25
C; GND = 0 V
TYPICAL
UNIT
t
PLH
t
PHL
Propagation delay
An to Bn or Bn to An
C
L
= 50 pF; V
CC
= 5 V
0.25
ns
C
IN
Input capacitance
V
I
= 0 V or V
CC
4.5
pF
C
OUT
B
B capacitance
Outputs disabled; V
O
= 0 V
8
pF
C
OUT
A
A capacitance
Outputs disabled; V
O
= 0 V
13
pF
C on 1
One channel on capacitance
One B enabled; V
O
= 0 V
21
pF
C on 2
Both channels on capacitance
Both B channels enabled; V
O
= 0 V
34
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
Philips Semiconductors
Product specification
CBT6832
16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
2000 Jul 18
3
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
3, 6, 9, 12, 17,
20, 23, 26, 33,
36, 39, 42, 47,
50, 53, 56
1A116A1
Inputs
1, 2, 4, 5, 7, 8,
10, 11, 15, 16,
18, 19, 21, 22,
24, 25
1B116B1
Outputs
31, 32, 34, 35,
37, 38, 40, 41,
45, 46, 48, 49,
51, 52, 54, 55
1B216B2
Outputs
27, 30
V
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
V
BIAS1
PULLUP
1B1
V
BIAS2
PULLUP
1B2
V
BIAS1
PULLUP
16B1
V
BIAS2
PULLUP
16B2
1A
16A
SEL1
SEL2
SV01802
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
V
CC
DC supply voltage
0.5 to +7.0
V
I
IK
DC input diode current
V
I
< 0
50
mA
V
I
DC input voltage
3
0.5 to +7.0
V
V
OUT
DC output voltage
3
output in Off or High state
0.5 to +7.0
V
I
OUT
DC output current
output in Low state
120
mA
T
stg
Storage temperature range
65 to +150
C
JA
Power dissipation
95
C/W
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
SYMBOL
PARAMETER
LIMITS
UNIT
SYMBOL
PARAMETER
MIN
MAX
UNIT
V
CC
DC supply voltage
4.5
5.5
V
V
IH
High-level input voltage
2.0
V
V
IL
Low-level Input voltage
0.8
V
T
amb
Operating free-air temperature range
0
+70
C
Philips Semiconductors
Product specification
CBT6832
16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
2000 Jul 18
4
DC ELECTRICAL CHARACTERISTICS
Over operating temperature range T
amb
= 0
C to +70
C; V
CC
= 5 V
10%; V
BIAS
= 1.3 V to V
CC
, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
1
MAX
UNIT
V
IH
Input HIGH voltage
Guaranteed logic HIGH level
2.0
V
V
IL
Input LOW voltage
Guaranteed logic LOW level
0.5
0.8
V
I
IH
Input HIGH current
V
CC
= 5.5 V, V
IN
= V
CC
5
A
I
IL
Input LOW current
V
CC
= 5.5 V, V
IN
= GND
5
A
I
OZH
High impedance output current
A = 0 V or V
CC
MAX,
V
BIAS1
= V
BIAS2
= V
CC
MAX
1
A
I
OZL
Low impedance output current
B = 0 V or V
CC
MAX,
V
BIAS1
= V
BIAS2
= V
CC
MAX
0.2
2
mA
V
IK
Input clamp voltage
V
CC
= 4.5 V; I
I
= 18 mA
1.2
V
r
Switch on resistance
2
V
CC
= 4.5 V; V
I
= 0 V; I
I
= 48 mA
5
8
r
on
Switch on resistance
2
V
CC
= 4.5 V; V
I
= 2.4 V; I
I
= 15 mA
10
15
Capacitance
3
(T
amb
= +25
C; f = 1 MHz)
C
IN
Input capacitance
V
I
= 0 V
4.5
pF
C
OFF
B
B capacitance, switch off
V
I
= 0 V
8
pF
C
OFF
A
A capacitance, switch off
V
I
= 0 V
13
pF
C
ON
1
One B channel on capacitance
V
I
= 0 V
21
pF
C
ON
2
Both B channels on capacitance
V
I
= 0 V
34
pF
Power supply
I
CC
Quiescent supply current
V
CC
= 5.5 V; V
I
= V
CC
or GND
200
A
I
CC
Additional supply current per input pin
5
V
CC
= 5.5 V, one input at 3.4 V,
other inputs at V
CC
or GND
2.5
mA
NOTES:
1. All typical values are at V
CC
= 5 V, T
amb
= +25
C ambient and maximum loading.
2. Measured by the voltage drop between the A and the B terminals at the indicated current through the switch.
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
I
= 3.4 V, control inputs only); A and B pins do not contribute to I
CC
.
6. This current applies to the control inputs only and represent the current required to switch internal capacitance at the specified frequency.
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.
Philips Semiconductors
Product specification
CBT6832
16-bit 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
2000 Jul 18
5
AC CHARACTERISTICS
V
CC
= 5.0 V
0.5 V; GND = 0 V
;
C
L
= 50 pF, R
L
= 500
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t
PLH
t
PHL
Propagation delay
1
A to B
0.25
ns
t
PZH
t
PZL
Bus enable time
SEL to A, B
1
1
7.0
6.0
ns
t
PHZ
t
PLZ
Bus disable time
SEL to A, B
1
1
7.0
6.5
ns
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
V
M
= 1.5 V, V
IN
= GND to 3.0 V
INPUT
1.5V
OUTPUT
t
PLH
t
PHL
SA00028
1.5V
1.5V
1.5V
3 V
0 V
V
OH
V
OL
Waveform 1. Input (An) to Output (Bn) Propagation Delays
Output Control
(Low-level
enabling
1.2 V
t
PZH
t
PHZ
V
OH
V
OL
t
PZL
t
PLZ
3.5V
0V
V
OL
+ 0.3V
V
OH
0.3V
1.5 V
1.5 V
1.5 V
0V
3V
Output
Waveform 1
S1 at 7 V
(see Note)
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.
Output
Waveform 2
S1 at Open
(see Note)
SA00543
Waveform 2. 3-State Output Enable and Disable Times
TEST CIRCUIT AND WAVEFORMS
C
L
= 50 pF
500
Load Circuit
DEFINITIONS
C
L
=
Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
TEST
S1
t
pd
open
t
PLZ
/t
PZL
7 V
t
PHZ
/t
PZH
open
SA00012
500
From Output
Under Test
S1
7 V
Open
GND
Philips Semiconductors
Product specification
CBT6832
16-bit
1-of-2
multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
2000 Jul 18
6
TSSOP56:
plastic thin shrink small outline package; 56 leads; body width 6.1 mm
SOT364-1
Philips Semiconductors
Product specification
CBT6832
16-bit
1-of-2
multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
2000 Jul 18
7
NOTES
Philips Semiconductors
Product specification
CBT6832
16-bit
1-of-2
multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
2000 Jul 18
8
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 940883409
Telephone 800-234-7381
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
Philips
Semiconductors
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
[1]
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.
Data sheet status
[1]
Please consult the most recently issued datasheet before initiating or completing a design.
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