CBT3384
10-bit bus switch with 5-bit output enables
2000 Nov 13
INTEGRATED CIRCUITS
Product specification
Supersedes data of 2000 Jan 28
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2
2000 Nov 13 853-2187 25006
FEATURES
•5 Ω switch connection between two ports
•TTL compatible control input and output levels
•See CBTS3384 for CBT3384 with Schottky diode undershoot
protection
•See CBTD3384 for CBT3384 with level shifting diodes
•Latch-up protection exceeds 500 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
DESCRIPTION
The CBT3384 provides ten bits of high-speed TTL-compatible bus
switching. The low on-state resistance of the switch allows
connections to be made with minimal propagation delay.
The CBT3384 device is organized as two 5-bit bus switches with
separate output-enable (OE) inputs. When OE is LOW, the switch is
on and port A is connected to B. When OE is HIGH, the switch is
open and high-impedance state exists between the two ports.
The CBT3384 is characterized for operation from –40 °C to +85 °C.
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS
Tamb = 25 °C; GND = 0 V TYPICAL UNIT
tPLH
tPHL Propagation delay
An to Yn CL = 50 pF; VCC = 5 V 250 ps
CIN Input capacitance VI = 0 V or VCC 4 pF
COUT Output capacitance Outputs disabled; VO = 0 V or VCC 10 pF
ICCZ Total supply current Outputs disabled; VCC = 5.5 V 3µA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE ORDER CODE DWG NUMBER
24-Pin Plastic SO –40 °C to +85 °CCBT3384 D SOT137-1
24-Pin Plastic SSOP –40 °C to +85 °CCBT3384 DB SOT340-1
24-Pin Plastic TSSOP Type I –40 °C to +85 °CCBT3384 PW DH SOT355-1
PIN CONFIGURATION
SA00502
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1B1
1A1
1A2
1B2
1B3
1A3
1A4
1B4
1B5
1A5
GND
1OE Vcc
2B5
2A5
2A4
2B4
2B3
2A3
2A2
2B2
2B1
2A1
2OE
PIN DESCRIPTION
PIN NUMBER SYMBOL NAME AND FUNCTION
1, 13 1OE, 2OE Output enables
3, 4, 7, 8, 11 1A1–1A5 Inputs
14, 17, 18, 21, 22 2A1–2A5 Inputs
2, 5, 6, 9, 10 1B1–1B5 Outputs
15, 16, 19, 20, 23 2B1–2B5 Outputs
12 GND Ground (0 V)
24 VCC Positive supply voltage
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 3
LOGIC SYMBOL
1A1
1A5
2A1
2A5
1B1
1B5
2B1
2B5
3
11
2
10
14
22
15
23
SA00555
13
1
2OE
1OE
FUNCTION TABLE
INPUTS OUTPUTS
1OE 2OE 1A, 1B 2A, 2B
L L 1A = 1B 2A= 2B
L H 1A = 1B Z
H L Z 2A = 2B
H H Z Z
H = High voltage level
L = Low voltage level
Z = High impedance “of f” state
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL PARAMETER CONDITIONS RATING UNIT
VCC DC supply voltage –0.5 to +7.0 V
IIK DC input diode current –50 mA
VIDC input voltage3–1.2 to +7.0 V
ISW DC output diode current VO < 0 ±128 mA
Tstg Storage temperature range –65 to +150 °C
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
VCC DC supply voltage 4.5 5.5 V
VIH High-level input voltage 2.0 V
VIL Low-level Input voltage 0.8 V
Tamb Operating free-air temperature range –40 +85 °C
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 4
DC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL PARAMETER TEST CONDITIONS Tamb = –40°C to +85°CUNIT
Min Typ1Max
VIK Input clamp voltage VCC = 4.5 V ; II = –18 mA –1.2 V
IIInput leakage current VCC = 5.5 V ; VI = GND or 5.5 V ±1µA
ICC Quiescent supply current2VCC = 5.5 V; IO = 0, VI = VCC or GND 3µA
∆ICC Additional supply current per input pin2VCC = 5.5 V, one input at 3.4 V, other inputs at VCC
or GND 2.5 mA
CIControl pins VI = 3.0 V or 0 4 pF
CI(OFF) Power-of f leakage current VO = 3.0 V or 0, OE = VCC 10 pF
3
VCC = 4.5 V ; VI = 0 V; II = 64 mA 5 7
ron
3
On-resistance VCC = 4.5 V ; VI = 0 V; II = 30 mA 5 7 Ω
VCC = 4.5 V ; VI = 2.4 V; II = –15 mA 10 15
VPPass voltage VI = VCC = 5.0 V ; IO = –100 µA 3.4 3.6 3.9 V
IUCP Undershoot static current protection VCC = 5.0 V, IB = 400 µA; OE = 5.0 V ; VB ≥ 3.0 V 8 mA
NOTES:
1. All typical values are at VCC = 5 V, Tamb = 25°C
2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.
3. 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.
AC CHARACTERISTICS
GND = 0 V ; tR; CL = 50 pF
FROM
TO
LIMITS
SYMBOL PARAMETER FROM
(INPUT)
TO
(OUTPUT)
VCC = +5.0 V ±0.5 V UNIT
(INPUT)
(OUTPUT)
Min Max
tpd Propagation delay1A or B B or A .25 ns
ten Output enable time
to High and Low level OE A or B 1.0 5.7 ns
tdis Output disable time
from High and Low level OE A or B 1.0 5.2 ns
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).
LIMITS
SYMBOL PARAMETER DESCRIPTION Tamb = –40 °C to +85 °C
VCC = 5 V, ±0.5 V UNIT
MIN. MEAN MAX.
tpd Propagation delay (see Note 1) 250 ps
tPZH Output enable time to High level 1.6 3.4 5.6 ns
tPHZ Output enable time from High level 1.7 3.3 5.5 ns
tPZL Output enable time to Low level 2.3 4 6 ns
tPLZ Output enable time from Low level 2.5 4.5 6.6 ns
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); at +25°C.
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 5
AC WAVEFORMS
VM = 1.5 V, VIN = GND to 3.0 V
INPUT 1.5V
OUTPUT
tPLH tPHL
SA00028
1.5V
1.5V 1.5V
3 V
0 V
VOH
VOL
W aveform 1. Input (An) to Output (Yn) Propagation Delays
Output Control
(Low-level
enabling
1.5 V
tPZH tPHZ VOH
VOL
tPZL tPLZ 3.5V
0V
VOL + 0.3V
VOH – 0.3V
SA00029
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)
W aveform 2. 3-State Output Enable and Disable Times
TEST CIRCUIT AND WAVEFORMS
CL = 50 pF 500 Ω
Load Circuit
DEFINITIONS
CL = Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
TEST S1
tpd open
tPLZ/tPZL 7 V
tPHZ/tPZH open
SA00012
500 Ω
From Output
Under Test
S1 7 V
Open
GND
NOTES:
1. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
2. The outputs are measured one at a time with one transition per
measurement.
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 6
SO24: plastic small outline package; 24 leads; body width 7.5 mm SOT137-1
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 7
SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 8
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 9
NOTES
Philips Semiconductors Product specification
CBT338410-bit bus switch with 5-bit output enables
2000 Nov 13 10
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 af fect 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 800-234-7381
Copyright Philips Electronics North America Corporation 2000
All rights reserved. Printed in U.S.A.
Date of release: 12-00
Document order number: 9397 750 07813
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.
