CBT3244ADB [NXP]
Octal bus switch with quad output enables; 与四路输出的八路总线开关启用
| 型号： | CBT3244ADB |
| 厂家： | 
NXP |
| 描述： | Octal bus switch with quad output enables |
| 文件： | 总10页 (文件大小：114K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
CBT3244A
Octal bus switch with quad output enables
Product data sheet
2004 May 26
Philips
Semiconductors
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
FEATURES
PIN CONFIGURATION — SO, SSOP, QSOP, and
TSSOP
• Standard ’244-type pinout
• 5 Ω switch connection between two ports
• TTL compatible control input levels
20
1OE
1A1
2B4
1A2
2B3
1A3
2B2
1A4
2B1
1
2
3
4
5
6
7
8
9
V
CC
19 2OE
18 1B1
17 2A4
16 1B2
15 2A3
14 1B3
13 2A2
12 1B4
• Package options include plastic small outline (D), shrink small
outline (DB), QSOP (DS), and thin shrink small outline (TSSOP)
• Latch-up protection exceeds 500 mA per JESD78
• ESD protection exceeds 1000 V HBM per JESD22-A114,
200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101
DESCRIPTION
The CBT3244A provides eight bits of high-speed TTL-compatible
bus switching in a standard ’244 device pinout. The low on-state
resistance of the switch allows connections to be made with minimal
propagation delay.
GND 10
11
2A1
SA00501
The CBT3244A device is organized as two 4-bit low-impedance
switches with separate output-enable (OE) inputs. When OE is
LOW, the switch is on and data can flow from port A to port B, or
vice versa. When OE is HIGH, the switch is open and
high-impedance state exists between the two ports.
Figure 1. Pin configuration — SO, SSOP, QSOP, and TSSOP
PIN DESCRIPTION
PIN NUMBER
1, 19
SYMBOL
1OE, 2OE
1A1–1A4
2A1–2A4
1B1–1B4
2B1–2B4
GND
NAME AND FUNCTION
Output enable
Inputs
The CBT3244A is characterized for operation from –40 °C to 85 °C.
2, 4, 6, 8
11, 13, 15, 17
18, 16, 14, 12
9, 7, 5, 3
10
Inputs
Outputs
Outputs
Ground (0V)
Positive supply voltage
20
V
CC
ORDERING INFORMATION
PACKAGES
20-Pin Plastic TSSOP
20-Pin Plastic SSOP (QSOP)
20-Pin Plastic SSOP
20-Pin Plastic SO
TEMPERATURE RANGE
–40 °C to 85 °C
ORDER CODE
TOPSIDE MARK
CT3244A
DWG NUMBER
SOT360-1
CBT3244APW
CBT3244ADS
CBT3244ADB
CBT3244AD
–40 °C to 85 °C
CT3244ADS
CT3244A
SOT724-1
–40 °C to 85 °C
SOT339-1
–40 °C to 85 °C
CBT3244AD
SOT163-1
Standard packing quantities and other packaging data is available at www.philipslogic.com/packaging.
2
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
LOGIC SYMBOL
FUNCTION TABLE
INPUTS
OUTPUTS
2
18
12
1A1
1B1
1B4
1OE
L
2OE
L
1A, 1B
2A, 2B
2A = 2B
Z
1A = 1B
8
1A4
L
H
1A = 1B
H
L
Z
Z
2A = 2B
Z
H
H
H
L
Z
=
=
=
High voltage level
Low voltage level
High-impedance “off” state
1
1OE
11
9
3
2A1
2B1
2B4
17
2A4
19
2OE
SA00503
1, 2
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
DC supply voltage
CONDITIONS
RATING
–0.5 to +7.0
–18
UNIT
V
V
CC
I
IK
DC input diode current
V < 0 V
I
mA
V
3
V
I
DC input voltage
–1.2 to +7.0
–50
I
DC output diode current
V
O
< 0 V
mA
V
OK
3
V
DC output voltage
output in Off or HIGH state
output in LOW state
–0.5 to +7
128
OUT
OUT
I
DC output current
mA
°C
T
stg
Storage temperature range
–65 to 150
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
SYMBOL
PARAMETER
UNIT
Min
4.5
2.0
—
Max
5.5
—
V
CC
DC supply voltage
V
V
V
IH
HIGH-level input voltage
LOW-level Input voltage
V
IL
0.8
+85
V
T
amb
Operating free-air temperature range
–40
°C
3
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
DC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= –40 °C to +85 °C
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
1
Min
—
Typ
—
—
1
Max
V
Input clamp voltage
V
V
V
= 4.5 V; I = –18 mA
–1.2
±1
3
V
IK
CC
CC
CC
I
I
Input leakage current
= 5.5 V; V = GND or 5.5 V
—
µA
µA
I
I
I
Quiescent supply current
Additional supply current per
= 5.5 V; I = 0, V = V or GND
—
CC
O
I
CC
V
CC
V
CC
= 5.5 V, one input at 3.4 V, other inputs at
or GND
∆I
CC
—
—
2.5
mA
2
input pin
C
Control pins input capacitance V = 3 V or 0 V, OE = V
CC
—
—
—
—
—
3
3
4
4
8
—
—
7
pF
pF
I
I
C
Input/output capacitance
On-resistance
OE = V = 5.0 V
CC
IO(OFF)
V
CC
V
CC
V
CC
= 4.5 V; V = 0 V; I = 64 mA
I I
3
r
= 4.5 V; V = 0 V; I = 30 mA
7
Ω
I
I
on
= 4.5 V; V = 2.4 V; I = 15 mA
15
I
I
NOTES:
1. All typical values are at V = 5 V, T
= 25 °C
amb
CC
2. This is the increase in supply current for each input that is at the specified TTL voltage level rather than V or GND.
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.
AC CHARACTERISTICS
GND = 0 V; t C = 50 pF
R;
L
LIMITS
FROM
(INPUT)
TO
(OUTPUT)
T
= –40 °C to +85 °C
amb
V
SYMBOL
PARAMETER
UNIT
= +5.0 V ± 0.5 V
CC
Min
Max
1
t
t
Propagation delay
A or B
OE
B or A
A or B
—
.25
ns
ns
pd
Output enable time
to HIGH and LOW level
1.0
1.0
5.6
6.0
en
Output disable time
from HIGH and LOW level
t
dis
OE
A or B
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).
4
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
AC WAVEFORMS
V
M
= 1.5 V, V = GND to 3.0 V
IN
3 V
3 V
Output Control
(Low-level
1.5 V
1.5 V
1.5 V
1.5 V
enabling )
INPUT
0 V
t
t
0 V
V
PLZ
PZL
3.5 V
t
t
PHL
PLH
Output
Waveform 1
S1 at 7 V
1.5 V
1.5 V
OH
V
V
+ 0.3 V
– 0.3 V
OL
(see Note)
V
V
1.5 V
1.5 V
OL
t
t
PHZ
PZH
OUTPUT
OH
Output
Waveform 2
S1 at Open
(see Note)
V
OL
OH
SA00028
0 V
Waveform 1. Input to Output Propagation Delays
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.
SA00029
Waveform 2. 3-State Output Enable and Disable Times
TEST CIRCUIT AND WAVEFORMS
7 V
500 Ω
S1
From Output
Under Test
Open
GND
500 Ω
C
= 50 pF
L
Load Circuit
TEST
S1
t
open
7 V
pd
t
/t
PLZ PZL
t
/t
open
PHZ PZH
DEFINITIONS
C
=
Load capacitance includes jig and probe capacitance;
see AC CHARACTERISTICS for value.
L
SA00012
NOTES:
1. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 10MHz, Z = 50 Ω, t ≤ 2.5 ns, t ≤ 2.5 ns.
O
r
f
2. The outputs are measured one at a time with one transition per
measurement.
5
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
6
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
SSOP20: plastic shrink small outline package; 20 leads;
body width 3.9 mm; lead pitch 0.635 mm
SOT724-1
7
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
8
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
9
2004 May 26
Philips Semiconductors
Product data sheet
Octal bus switch with quad output enables
CBT3244A
REVISION HISTORY
Rev
Date
Description
_1
20040526
Product data sheet (9397 750 13281)
Data sheet status
Product
status
Definitions
[1]
Level
Data sheet status
[2] [3]
I
Objective data
Development
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
II
Preliminary data
Qualification
Production
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III
Product data
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
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.
Limitingvaluesdefinition— Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). 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 in the products—including circuits, standard cells, and/or software—described
or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated
viaaCustomerProduct/ProcessChangeNotification(CPCN).PhilipsSemiconductorsassumesnoresponsibilityorliabilityfortheuseofanyoftheseproducts,conveys
nolicenseortitleunderanypatent, copyright, ormaskworkrighttotheseproducts, andmakesnorepresentationsorwarrantiesthattheseproductsarefreefrompatent,
copyright, or mask work right infringement, unless otherwise specified.
Koninklijke Philips Electronics N.V. 2004
Contact information
All rights reserved. Printed in U.S.A.
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
Date of release: 05-04
9397 750 13281
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Document order number:
Philips
Semiconductors
相关型号：
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