PHILIPS CBT6832E 16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged outputs and schottky undershoot protection for live insertion Datasheet

INTEGRATED CIRCUITS
CBT6832E
16-bit controlled enable rate
1-of-2 multiplexer/demultiplexer with
precharged outputs and Schottky
undershoot protection for live insertion
Product specification
Supersedes data of 2000 May 19
2000 Sep 01
Philips Semiconductors
Product specification
16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
FEATURES
CBT6832E
PIN CONFIGURATION
• 5 Ω typical ron
• Pull-up on B port
• Undershoot protection on A port only: –2.0 V
• Near zero propagation delay
• Controlled enable rate
• VCC 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
1B1 1
56 1A
2B1
2
55 1B2
2A
3
54 2B2
3B1
4
53 3A
4B1
5
52 3B2
4A
6
51 4B2
5B1
7
50 5A
6B1
8
49 5B2
6A
9
48 6B2
7B1 10
47 7A
8B1 11
46 7B2
8A 12
45 8B2
GND 13
44 GND
VCC 14
43 VCC
9B1 15
42 9A
10B1 16
41 9B2
10A 17
40 10B2
11B1 18
DESCRIPTION
The CBT6832E is a 16-bit controlled enable rate 1-of-2
multiplexer/demultiplexer with precharged outputs and Schottky
undershoot 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.
39 11A
12B1 19
38 11B2
12A 20
37 12B2
13B1 21
36 13A
14B1 22
35 13B2
14A 23
34 14B2
15B1 24
33 15A
16B1 25
32 15B2
16A 26
31 16B2
VBIAS1 27
30 VBIAS2
SEL1 28
29 SEL2
SW00478
QUICK REFERENCE DATA
SYMBOL
CONDITIONS
Tamb = 25°C; GND = 0 V
PARAMETER
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
An to Bn or Bn to An
CL = 50 pF; VCC = 5 V
.25
ns
CIN
Input capacitance control pins
VI = 0 V or VCC
4.5
pF
COFF B
B capacitance, switch off
Outputs disabled; VO = 0 V
8
pF
COFF A
A capacitance, switch off
Outputs disabled; VO = 0 V
13
pF
CON 1
One channel enabled capacitance
One B enabled; VO = 0 V
21
pF
CON 2
Both channels enabled capacitance
Both B channels enabled; VO = 0 V
34
pF
ORDERING INFORMATION
PACKAGES
56-Pin Plastic TSSOP Type II
2000 Sep 01
TEMPERATURE RANGE
ORDER CODE
DWG NUMBER
0°C to +70°C
CBT6832E DGG
SOT364-1
2
853-2217 24481
Philips Semiconductors
Product specification
16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
PIN DESCRIPTION
PIN NUMBER
CBT6832E
LOGIC DIAGRAM
SYMBOL
NAME AND FUNCTION
VBIAS1
3, 6, 9, 12, 17,
20, 23, 26, 33,
36, 39, 42, 47,
50, 53, 56
1A1–16A1
1, 2, 4, 5, 7, 8,
10, 11, 15, 16,
18, 19, 21, 22,
24, 25
1B1–16B1
Inputs
PULLUP
1A
1B1
VBIAS2
Outputs
PULLUP
31, 32, 34, 35,
37, 38, 40, 41,
45, 46, 48, 49,
51, 52, 54, 55
1B2–16B2
27, 30
VBIAS1,
VBIAS2
28, 29
SEL1, SEL2
13, 44
GND
Ground (0 V)
14, 43
VCC
Positive supply voltage
1B2
Outputs
VBIAS1
PULLUP
Precharge bias voltage inputs
16A
Select-control inputs
16B1
VBIAS2
PULLUP
16B2
FUNCTION TABLE
SEL1
SEL2
L
H
nA to nB1
H
L
nA to nB2
L
L
nA to nB1 and nB2
H
H
nB1, nB2 = VBIAS
SEL1
FUNCTION
SEL2
SV01801
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL
VCC
PARAMETER
CONDITIONS
RATING
DC supply voltage
IIK
DC input diode current
VI
DC input voltage3
VI < 0
UNIT
–0.5 to +7.0
V
–50
mA
–0.5 to +7.0
V
VOUT
DC output voltage3
output in Off or High state
–0.5 to +7.0
V
IOUT
DC output current
output in Low state
120
mA
Tstg
Storage temperature range
–65 to +150
°C
ΘJA
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
LIMITS
PARAMETER
MIN
MAX
5.5
VCC
DC supply voltage
4.5
VIH
High-level input voltage
2.0
VIL
Low-level Input voltage
Tamb
2000 Sep 01
Operating free-air temperature range
0
3
UNIT
V
V
0.8
V
+70
°C
Philips Semiconductors
Product specification
16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
CBT6832E
DC ELECTRICAL CHARACTERISTICS
Over operating temperature range Tamb = 0°C to +70°C; VCC = 5 V ±10%; VBIAS = 1.3 V to VCC, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
MIN
TYP1
MAX
UNIT
VIH
Input HIGH voltage
Guaranteed logic HIGH level
2.0
VIL
Input LOW voltage
Guaranteed logic LOW level
–0.5
0.8
V
IIH
Input HIGH current
VCC = 5.5 V, VIN = VCC
±5
µA
IIL
Input LOW current
VCC = 5.5 V, VIN = GND
±5
µA
IOZH
High impedance output current
A = 0 V or VCC MAX,
VBIAS1 = VBIAS2 = VCC MAX
±1
µA
IOZL
Low impedance output current
B = 0 V or VCC MAX,
VBIAS1 = VBIAS2 = VCC MAX
–2
mA
VIK
Input clamp voltage
VCC = 4.5 V; II = –18 mA
ron
Switch on resistance2
V
–0.2
–0.7
–1.8
V
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
Capacitance3 (Tamb = +25°C; f = 1 MHz)
Input capacitance
VI = 0 V
4.5
pF
COFF B
CIN
B capacitance, switch off
VI = 0 V
8
pF
COFF A
A capacitance, switch off
VI = 0 V
13
pF
CON 1
Capacitance, switch on (one B)
VI = 0 V
21
pF
CON 2
Capacitance, both B channels enabled
VI = 0 V
34
pF
Power supply
ICC
∆ICC
Quiescent supply current enabled
VCC = 5.5 V; VI = VCC or GND
100
µA
Additional supply current per input pin5
VCC = 5.5 V, one input at 3.4 V,
other inputs at VCC or GND
2.5
mA
NOTES:
1. All typical values are at VCC = 5 V, Tamb = +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 (VI = 3.4 V, control inputs only); A and B pins do not contribute to ICC.
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.
2000 Sep 01
4
Philips Semiconductors
Product specification
16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
CBT6832E
AC CHARACTERISTICS
VCC = 5.0 V ±0.5 V; GND = 0 V; CL = 50 pF, RL = 500 Ω
SYMBOL
PARAMETER
LIMITS
TEST CONDITIONS
tPLH
tPHL
Propagation delay1
A to B
Waveform 1
tPZH
tPZL
Bus enable time
SEL to A, B
Waveform 2
MIN
TYP
MAX
0.25
UNIT
ns
10
5
30
25
ns
tPHZ
Bus disable time
0.5
6
Waveform 2
ns
tPLZ
SEL to A, B
0.5
7
NOTE:
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
TEST CIRCUIT AND WAVEFORMS
VM = 1.5 V, VIN = GND to 3.0 V
7V
3V
1.5V
1.5V
500 Ω
From Output
Under Test
S1
Open
GND
INPUT
500 Ω
CL = 50 pF
0V
tPHL
tPLH
Load Circuit
VOH
1.5V
1.5V
OUTPUT
VOL
SA00028
Waveform 1. Input (An) to Output (Bn) Propagation Delays
1.5 V
1.5 V
Output
Waveform 2
S1 at Open
(see Note)
2.3V
1.2 V
VOL + 0.3V
VOL
tPHZ
VOH
VOH – 0.3V
1.2 V
0V
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.
SA00530
Waveform 2. 3-State Output Enable and Disable Times
2000 Sep 01
open
tPLZ/tPZL
7V
tPHZ/tPZH
open
SA00012
0V
tPLZ
tPZL
Output
Waveform 1
S1 at 7 V
(see Note)
tPZH
S1
tpd
DEFINITIONS
Load capacitance includes jig and probe capacitance;
CL =
see AC CHARACTERISTICS for value.
3V
Output Control
(Low-level
enabling
TEST
5
Philips Semiconductors
Product specification
16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1 mm
2000 Sep 01
6
CBT6832E
SOT364-1
Philips Semiconductors
Product specification
16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
NOTES
2000 Sep 01
7
CBT6832E
Philips Semiconductors
Product specification
16-bit controlled enable rate 1-of-2 multiplexer/demultiplexer with precharged
outputs and Schottky undershoot protection for live insertion
CBT6832E
Data sheet status
Data sheet
status
Product
status
Definition [1]
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
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.
Product
specification
Production
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] 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.
 Copyright Philips Electronics North America Corporation 2000
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Date of release: 09-00
Document order number:
2000 Sep 01
8
9397 750 07485
Similar pages