SN74CBT16390DL [TI]
16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH; 16位到32位FET复用器/解复用器总线开关
| 型号： | SN74CBT16390DL |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH |
| 文件： | 总5页 (文件大小：78K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN74CBT16390
16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH
SCDS035C – OCTOBER 1997 – REVISED OCTOBER 1998
DGG, DGV, OR DL PACKAGE
5-Ω Switch Connection Between Two Ports
(TOP VIEW)
TTL-Compatible Input Levels
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
A1
2B1
2B2
A3
1B1
1B2
A2
1B3
1B4
A4
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
2
3
Latch-Up Performance Exceeds 250 mA Per
JESD 17
4
2B3
2B4
A5
5
Package Options Include Plastic Thin
Shrink Small-Outline (DGG), Thin Very
Small-Outline (DGV), and 300-mil Shrink
Small-Outline (DL) Packages
6
1B5
1B6
A6
7
2B5
2B6
A7
2B7
2B8
GND
8
9
1B7
1B8
A8
10
11
12
13
14
15
16
description
The SN74CBT16390 is a 16-bit to 32-bit switch
used in applications in which two separate data
paths must be multiplexed onto, or demultiplexed
from, a single path. This device can be used for
memory interleaving, in which two different banks
of memory must be addressed simultaneously.
ThisalsocanbeusedtoconnectorisolatethePCI
bus to one or two slots simultaneously.
GND
V
V
CC
CC
A9
2B9
1B9
1B10
2B10 17
A11 18
40 A10
39 1B11
38 1B12
37 A12
36 1B13
35 1B14
2B11 19
2B12 20
A13 21
2B13 22
Two output enables (OE1 and OE2) control the
data flow. When OE1 is low, A port is connected
to 1B port. When OE2 is low, A port is connected
to 2B port. When both OE1 and OE2 are low, the
A port is connected to both 1B and 2B ports. The
control inputs can be driven with a 5-V CMOS, 5-V
TTL, or an LVTTL driver.
23
24
25
26
27
28
34
33
32
31
30
29
2B14
A15
2B15
2B16
NC
A14
1B15
1B16
A16
OE1
OE2
NC
The SN74CBT16390 is characterized for
operation from –40°C to 85°C.
NC – No internal connection
FUNCTION TABLE
INPUTS
FUNCTION
OE1
OE2
L
L
L
A = 1B and A = 2B
A = 1B
H
H
H
L
A = 2B
H
Isolation
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1998, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74CBT16390
16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH
SCDS035C – OCTOBER 1997 – REVISED OCTOBER 1998
logic diagram (positive logic)
1
56
2
A1
1B1
2B1
31
32
26
A16
1B16
2B16
30
29
OE1
OE2
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
CC
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
+ 0.5 V
I
CC
Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, I (V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
IK
I
Package thermal impedance, θ (see Note 2): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81°C/W
JA
DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W
DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74°C/W
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
Stresses beyond those listed under “absolute maximum ratings” 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.
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions (see Note 3)
MIN
4.5
2
MAX
UNIT
V
V
V
V
Supply voltage
5.5
CC
IH
IL
High-level control input voltage
Low-level control input voltage
Operating free-air temperature
V
0.8
85
V
T
A
–40
°C
NOTE 3: All unused control inputs of the device must be held at V
or GND to ensure proper device operation. Refer to the TI application report,
CC
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74CBT16390
16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH
SCDS035C – OCTOBER 1997 – REVISED OCTOBER 1998
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
†
PARAMETER
TEST CONDITIONS
I = –18 mA
MIN TYP
MAX
–1.2
10
UNIT
V
IK
V
V
V
V
V
= 4.5 V,
= 0,
V
CC
CC
CC
CC
CC
I
V = 5.5 V
I
I
I
µA
= 5.5 V,
= 5.5 V,
= 5.5 V,
V = 5.5 V or GND
I
±1
I
I
O
= 0,
V = V
I
or GND
3
µA
mA
pF
CC
CC
‡
∆I
CC
Control inputs
Control inputs
One input at 3.4 V,
Other input at V
or GND
2.5
CC
C
C
V = 3 V or 0
I
5
i
V
= 3 V or 0
= 4.5 V
5.5
5
pF
io(OFF)
O
I = 64 mA
I
7
7
V = 0
I
§
V
CC
I = 30 mA
I
5
Ω
r
on
V = 2.4 V,
I
I = 15 mA
I
7
12
†
‡
§
All typical values are at V
= 5 V, T = 25°C.
A
CC
This is the increase in supply current for each input that is at the specified TTL voltage level rather than V
or GND.
CC
Measured by the voltage drop between A and B terminals at the indicated current through the switch. On-state resistance is determined by the
lower of the voltages of the two (A or B) terminals.
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
MIN
MAX
UNIT
¶
t
t
t
A or B
OE
B or A
A or B
A or B
0.25
5.9
ns
ns
ns
pd
en
1.3
1
5.3
OE
dis
¶
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).
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74CBT16390
16-BIT TO 32-BIT FET MULTIPLEXER/DEMULTIPLEXER BUS SWITCH
SCDS035C – OCTOBER 1997 – REVISED OCTOBER 1998
PARAMETER MEASUREMENT INFORMATION
TEST
S1
7 V
Open
GND
S1
t
Open
7 V
pd
/t
500 Ω
From Output
Under Test
t
PLZ PZL
/t
t
Open
PHZ PZH
C
= 50 pF
L
500 Ω
(see Note A)
Output
Control
(low-level
enabling)
3 V
0 V
1.5 V
1.5 V
LOAD CIRCUIT
t
PZL
t
PLZ
Output
Waveform 1
S1 at 7 V
3.5 V
3 V
0 V
1.5 V
Input
V
+ 0.3 V
1.5 V
1.5 V
OL
V
OL
(see Note B)
t
PHZ
t
PZH
t
t
PHL
PLH
Output
Waveform 2
S1 at Open
(see Note B)
V
OH
V
OH
V
OH
– 0.3 V
0 V
1.5 V
Output
1.5 V
1.5 V
V
OL
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
ENABLE AND DISABLE TIMES
NOTES: A.
C includes probe and jig capacitance.
L
B. 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.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z = 50 Ω, t ≤ 2.5 ns, t ≤ 2.5 ns.
O
r
f
D. The outputs are measured one at a time with one transition per measurement.
E.
F.
G.
t
t
t
and t
and t
and t
PHL
are the same as t
.
dis
PLZ
PZL
PLH
PHZ
PZH
are the same as t
.
en
are the same as t .
pd
Figure 1. Load Circuit and Voltage Waveforms
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO
BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1998, Texas Instruments Incorporated
相关型号：
SN74CBT16800CDGGE4
IC CBT/FST/QS/5C/B SERIES, 20 1-BIT DRIVER, TRUE OUTPUT, PDSO48, PLASTIC, TSSOP-48, Bus Driver/Transceiver
TI
SN74CBT16800CDGGR
5-V, 1:1 (SPST), 20-channel FET bus switch with precharged outputs & -2-V undershoot protection 48-TSSOP -40 to 85
TI
SN74CBT16800CDLG4
CBT/FST/QS/5C/B SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO48, GREEN, PLASTIC, SSOP-48
TI
©2020 ICPDF网 联系我们和版权申明