Page 1
INTEGRATED CIRCUITS
CBT3384
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
Product specification
Supersedes data of 1999 Oct 10
2000 Jan 28
Page 2
Philips Semiconductors Product specification
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
FEA TURES
•5 Ω switch connection between two ports
•TTL compatible control input and output levels
•Undershoot protection included to prevent shoot through level
changes
•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
QUICK REFERENCE DATA
SYMBOL PARAMETER
C
t
PLH
t
PHL
C
OUT
I
CCZ
IN
Propagation delay
An to Yn
Input capacitance VI = 0 V or V
Output capacitance Outputs disabled; VO = 0 V or V
Total supply current Outputs disabled; VCC =5.5 V 3 µA
CL = 50 pF; VCC = 5 V 250 ps
CC
T
amb
CBT3384
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 with separate
output-enable (OE
port A is connected to B. When OE
high-impedance state exists between the two ports.
The CBT3384 is characterized for operation from 0°C to 85°C.
CONDITIONS
= 25°C; GND = 0 V
) inputs. When OE is low, the switch is on and
is high, the switch is open and
TYPICAL UNIT
4 pF
CC
10 pF
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE ORDER CODE DWG NUMBER
24-Pin Plastic TSSOP Type I –40°C to +85°C CBT3384 PW DH SOT403-1
PIN CONFIGURATION
1OE
1
2
1B1
3
1A1
4
1A2
5
1B2
6
1B3
7
1A3
8
1A4
9
1B4
10
1B5
11
1A5
12
GND
24
Vcc
23
2B5
22
2A5
21
2A4
20
2B4
19
2B3
18
2A3
17
2A2
16
2B2
15
2B1
14
2A1
2OE
13
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 V
CC
Positive supply voltage
SA00502
2000 Jan 28 853-2187 23060
2
Page 3
Philips Semiconductors Product specification
SYMBOL
PARAMETER
UNIT
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
LOGIC SYMBOL
1A1
1A5
1OE
2A1
2A5
3
11
1
14
22
2
1B1
10
1B5
15
2B1
23
2B5
CBT3384
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 “off” state
13
2OE
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
CC
I
IK
V
I
I
SW
T
stg
DC supply voltage –0.5 to +7.0 V
DC input diode current –50 mA
DC input voltage
DC output diode current VO < 0 ±128 mA
Storage temperature range –65 to 150 °C
PARAMETER CONDITIONS RATING UNIT
3
SA00504
1, 2
–1.2 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 ju nction
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 +85 °C
2000 Jan 28
3
Page 4
Philips Semiconductors Product specification
3
(INPUT)
(OUTPUT)
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
DC ELECTRICAL CHARACTERISTICS
T
SYMBOL PARAMETER TEST CONDITIONS
∆I
C
V
I
I(OFF)
Input clamp voltage VCC = 4.5 V; II = –18 mA –1.2 V
IK
I
Input leakage current VCC = 5.5 V; VI = GND or 5.5 V ±1 µA
I
Quiescent supply current
CC
Additional supply current per input pin
CC
C
Control pins VI= 3.0 V or 0 4 pF
I
Power-off leakage current VO = 3.0 V or 0, OE = V
2
VCC = 5.5 V; IO = 0, VI = VCC or GND 3 µA
VCC = 5.5 V, one input at 3.4 V, other inputs at V
2
or GND
CC
CC
VCC = 4.5 V; VI = 0 V; II = 64 mA 5 7
r
on
On-resistance
VCC = 4.5 V; VI = 0 V; II = 30 mA 5 7
VCC = 4.5 V; VI = 2.4 V; II = –15 mA 10 15
V
Pass voltage VI= VCC = 5.0 V; IO = –100 µA 3.4 3.6 3.9 V
P
I
UCP
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 V
2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
= 5 V, TA = 25°C
CC
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.
= –40°C to +85°C
amb
Min Typ
or GND
CC
CBT3384
LIMITS
1
Max
2.5 mA
10 pF
UNIT
Ω
AC CHARACTERISTICS
GND = 0 V; tR; CL = 50 pF
LIMITS
VCC = +5.0 V ±0.5 V
Min Max
LIMITS
UNIT
SYMBOL PARAMETER
t
pd
t
en
t
dis
Propagation delay
Output enable time
to High and Low level
Output disable time
from High and Low level
1
FROM
A or B B or A .25 ns
OE A or B 1.0 5.7 ns
OE A or B 1.0 5.2 ns
TO
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).
SYMBOL PARAMETER DESCRIPTION
–40° C/+85° VCC = 5 V, ±0.5 V
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.
UNIT
2000 Jan 28
4
Page 5
Philips Semiconductors Product specification
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
AC WAVEFORMS
VM = 1.5 V, VIN = GND to 3.0 V
3 V
t
t
PHZ
PLZ
1.5V
SA00028
3V
0V
3.5V
V
V
0V
SA00029
0 V
V
OH
V
OL
OL
OH
t
PHL
+ 0.3V
V
OL
V
– 0.3V
OH
INPUT
OUTPUT
1.5V
t
PLH
1.5V 1.5V
Waveform 1. Input (An) to Output (Yn) Propagation Delays
Output Control
(Low-level
enabling
Output
Waveform 1
S1 at 7 V
(see Note)
Output
Waveform 2
S1 at Open
(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.
1.5 V 1.5 V
t
PZL
1.5 V
t
PZH
1.5 V
Waveform 2. 3-State Output Enable and Disable Times
CBT3384
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
NOTES:
1. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 10 MHz, Z
2. The outputs are measured one at a time with one transition per
= 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
O
measurement.
7 V
S1
Open
GND
SA00012
2000 Jan 28
5
Page 6
Philips Semiconductors Product specification
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm SOT355-1
CBT3384
2000 Jan 28
6
Page 7
Philips Semiconductors Product specification
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
NOTES
CBT3384
2000 Jan 28
7
Page 8
Philips Semiconductors Product specification
10-bit bus switch with 5-bit output enables
and Schottky undershoot protection
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]
CBT3384
[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 800-234-7381
Copyright Philips Electronics North America Corporation 2000
All rights reserved. Printed in U.S.A.
Date of release: 01-00
Document order number: 9397 750 06832
2000 Jan 28
8
Loading...