SN54ABTH32318_06 [TI]
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS; 18位TRI -PORT通用总线交换器
| 型号： | SN54ABTH32318_06 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS |
| 文件： | 总11页 (文件大小：190K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
Members of the Texas Instruments
Widebus+ Family
High-Impedance State During Power Up
and Power Down
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
Distributed V
Minimizes High-Speed Switching Noise
and GND Pin Configuration
CC
UBE (Universal Bus Exchanger)
Combines D-Type Latches and D-Type
Flip-Flops for Operation in Transparent,
Latched, or Clocked Mode
High-Drive Outputs (–32-mA I , 64-mA I
)
OL
OH
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
Package Options Include 80-Pin Plastic
Thin Quad Flat (PN) Package With
Typical V
< 0.8 V at V
(Output Ground Bounce)
12 × 12-mm Body Using 0.5-mm Lead Pitch
and 84-Pin Ceramic Quad Flat (HT) Package
OLP
= 5 V, T = 25°C
CC
A
SN74ABTH32318 . . . PN PACKAGE
(TOP VIEW)
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
A2
A3
A4
GND
A5
A6
A7
A8
A9
C8
C7
C6
GND
C5
C4
C3
C2
C1
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
1
2
3
4
5
6
7
8
9
V
V
10
11
12
13
14
15
16
17
18
19
20
CC
CC
GND
A10
A11
A12
A13
A14
GND
A15
A16
A17
GND
B18
B17
B16
B15
B14
GND
B13
B12
B11
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
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.
Widebus+, EPIC-ΙΙB, and UBE are trademarks of Texas Instruments Incorporated.
Copyright 1997, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
SN54ABTH32318 . . . HT PACKAGE
(TOP VIEW)
84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64
1
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
A2
A3
A4
GND
A5
A6
A7
A8
A9
C8
C7
C6
GND
C5
C4
C3
C2
C1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
V
V
CC
CC
NC
GND
A10
A11
A12
A13
A14
GND
A15
A16
A17
NC
GND
B18
B17
B16
B15
B14
GND
B13
B12
B11
22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
NC – No internal connection
description
The ’ABTH32318 consist of three 18-bit registered input/output (I/O) ports. These registers combine D-type
latches and flip-flops to allow data flow in transparent, latch, and clock modes. Data from one input port can be
exchanged to one or more of the other ports. Because of the universal storage element, multiple combinations
of real-time and stored data can be exchanged among the three ports.
Data flow in each direction is controlled by the output-enable (OEA, OEB, and OEC), select-control (SELA,
SELB, and SELC), latch-enable (LEA, LEB, and LEC), and clock (CLKA, CLKB, and CLKC) inputs. The A data
register operates in the transparent mode when LEA is high. When LEA is low, data is latched if CLKA is held
at a high or low logic level. If LEA is low, data is stored on the low-to-high transition of CLKA. Output data
selection is accomplished by the select-control pins. All three ports have active-low output enables, so when
the output-enable input is low, the outputs are active; when the output-enable input is high, the outputs are in
the high-impedance state.
When V
is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down.
CC
However, to ensure the high-impedance state above 2.1 V, OE should be tied to V
the minimum value of the resistor is determined by the current-sinking capability of the driver.
through a pullup resistor;
CC
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
description (continued)
The SN54ABTH32318 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABTH32318 is characterized for operation from –40°C to 85°C.
Function Tables
†
STORAGE
INPUTS
OUTPUT
CLKA
LEA
L
A
L
↑
↑
L
L
H
X
X
L
H
‡
‡
H
L
X
X
L
Q
Q
0
0
L
H
L
H
H
H
†
‡
A-portregistershown. BandCportsare
similar but use CLKB, CLKC, LEB, and
LEC.
Output level before the indicated
steady-state input conditions were
established
A-PORT OUTPUT
INPUTS
OUTPUT A
OEA SELA
H
L
L
X
H
L
Z
Output of C register
Output of B register
B-PORT OUTPUT
INPUTS
OEB SELB
OUTPUT B
H
L
L
X
H
L
Z
Output of A register
Output of C register
C-PORT OUTPUT
INPUTS
OEC SELC
OUTPUT C
H
L
L
X
H
L
Z
Output of B register
Output of A register
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
logic diagram (positive logic)
77
OEC
76
SELC
Q
CLK
74
CLKC
LEC
75
52
LE
D
C1
24
25
OEB
SELB
Q
27
26
CLKB
LEB
CLK
LE
D
28
B1
78
79
OEA
SELA
Q
CLK
22
23
CLKA
LEA
LE
D
80
A1
1 of 18 Channels
Pin numbers shown are for the PN package.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
†
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 (except I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
I
Voltage range applied to any output in the high or power-off state, V
. . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V
O
Current into any output in the low state, I : SN54ABTH32318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
O
SN74ABTH32318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA
Input clamp current, I (V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18 mA
IK
OK
I
Output clamp current, I
(V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
O
Package thermal impedance, θ (see Note 2): PN package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62°C/W
Storage temperature range, T
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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 EIA/JEDEC Std JESD51.
recommended operating conditions (see Note 3)
SN54ABTH32318 SN74ABTH32318
UNIT
MIN
4.5
2
MAX
MIN
4.5
2
MAX
V
V
V
V
Supply voltage
5.5
5.5
V
V
CC
High-level input voltage
Low-level input voltage
Input voltage
IH
0.8
0.8
V
IL
0
V
0
V
CC
V
I
CC
I
I
High-level output current
Low-level output current
Input transition rise or fall rate
Power-up ramp rate
–24
48
–32
64
mA
mA
ns/V
µs/V
°C
OH
OL
∆t/∆v
∆t/∆V
Outputs enabled
10
10
200
–55
200
–40
CC
T
Operating free-air temperature
125
85
A
NOTE 3: Unused control pins must be held high or low to prevent them from floating.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
SN54ABTH32318
SN74ABTH32318
PARAMETER
TEST CONDITIONS
UNIT
†
†
MIN TYP
MAX
MIN TYP
MAX
V
V
V
V
V
= 4.5 V,
= 4.5 V,
= 5 V,
I = –18 mA
–1.2
–1.2
V
IK
CC
CC
CC
I
I
I
I
I
I
I
= –3 mA
= –3 mA
= –24 mA
= –32 mA
= 48 mA
= 64 mA
2.5
3
2.5
3
OH
OH
OH
OH
OL
OL
V
OH
2
V
= 4.5 V
= 4.5 V
CC
CC
2
0.55
0.55
0.55
0.55
V
V
V
V
OL
100
100
mV
µA
hys
Control inputs
V
V
= 0 to 5.5 V,
V = V
or GND
or GND
±1
±1
CC
I
CC
CC
I
I
A, B, or C ports
= 2.1 V to 5.5 V,
V = V
I
±20
±20
CC
V = 0.8 V
100
100
I
I
A, B, or C ports
V
CC
= 4.5 V
µA
I(hold)
V = 2 V
I
–100
–100
‡
I
I
I
I
I
V
V
V
V
V
= 0 to 2.1 V, V = 0.5 V to 2.7 V, OE = X
±50
±50
±100
50
±50
±50
±100
50
µA
µA
µA
µA
mA
OZPU
OZPD
off
CC
CC
CC
CC
CC
O
‡
= 2.1 V to 0, V = 0.5 V to 2.7 V, OE = X
O
= 0,
V or V ≤ 4.5 V
I O
= 5.5 V, V = 5.5 V
O
Outputs high
= 2.5 V
CEX
§
= 5.5 V,
V
–50
–100
–180
2
–50
–100
–180
2
O
O
Outputs high
Outputs low
V
I
= 5.5 V,
= 0,
CC
O
I
45
45
mA
CC
V = V
or GND
I
CC
Outputs disabled
1
1
V
= 5.5 V, One input at 3.4 V,
CC
Other inputs at V
¶
0.5
0.5
mA
∆I
CC
or GND
CC
V = 2.5 V or 0.5 V
C
C
Control inputs
3
3
pF
pF
i
I
A, B, or C ports
V
O
= 2.5 V or 0.5 V
11.5
11.5
io
†
‡
§
¶
All typical values are at V
= 5 V, T = 25°C.
A
CC
This parameter is specified by characterization.
Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
This is the increase in supply current for each input that is at the specified TTL voltage level rather than V or GND.
CC
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN54ABTH32318 SN74ABTH32318
UNIT
MIN
MAX
MIN
MAX
f
t
Clock frequency
Pulse duration
150
150
MHz
ns
clock
LE high
3.3
3.3
2.4
2.1
1.4
2.1
3.3
3.3
2.4
2.1
1.4
2.1
w
CLK high or low
A, B, or C before CLK↑
A, B, or C before LE↓
A, B, or C after CLK↑
A, B, or C after LE↓
t
t
Setup time
Hold time
ns
ns
su
h
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C = 50 pF (unless otherwise noted) (see Figure 1)
L
SN54ABTH32318 SN74ABTH32318
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
UNIT
MHz
ns
MIN
150
1.4
1.1
1.4
1.8
2.6
2.6
2.5
2.5
1.4
2.4
1
MAX
MIN
150
1.4
1.1
1.4
1.8
2.6
2.6
2.5
2.5
1.4
2.4
1
MAX
f
t
t
t
t
t
t
t
t
t
t
t
t
max
PLH
PHL
PLH
PHL
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
6.5
6.8
6.7
6.8
8
6.1
6.6
6.5
6.5
7.5
6.9
7.4
6.7
6.8
7.1
6.2
6
A, B, or C
SEL
C, B, or A
A, B, or C
A, B, or C
A, B, or C
A, B, or C
A, B, or C
ns
ns
ns
ns
ns
LE
7.4
8
CLK
7.2
6.9
7.2
6.4
6.4
OE
OE
2
2
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABTH32318, SN74ABTH32318
18-BIT TRI-PORT UNIVERSAL BUS EXCHANGERS
SCBS180E – JUNE 1992 – REVISED MAY 1997
PARAMETER MEASUREMENT INFORMATION
7 V
Open
TEST
/t
S1
S1
500 Ω
From Output
Under Test
t
Open
7 V
PLH PHL
GND
t
/t
PLZ PZL
C
= 50 pF
t
/t
Open
L
PHZ PZH
500 Ω
(see Note A)
3 V
0 V
LOAD CIRCUIT
Timing Input
Data Input
1.5 V
t
w
t
t
h
su
3 V
0 V
3 V
0 V
Input
1.5 V
1.5 V
1.5 V
1.5 V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
3 V
0 V
3 V
0 V
Output
Control
1.5 V
1.5 V
1.5 V
1.5 V
Input
t
PZL
t
t
t
PHL
PLH
t
PLZ
Output
Waveform 1
S1 at 7 V
3.5 V
V
V
OH
1.5 V
1.5 V
1.5 V
1.5 V
Output
V
V
+ 0.3 V
OL
V
OL
OL
(see Note B)
t
PHZ
t
PHL
PLH
t
PZH
Output
Waveform 2
S1 at Open
(see Note B)
V
OH
V
V
OH
– 0.3 V
OH
1.5 V
1.5 V
Output
≈ 0 V
OL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. includes probe and jig capacitance.
C
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.
Figure 1. Load Circuit and Voltage Waveforms
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
6-Feb-2006
PACKAGING INFORMATION
Orderable Device
SN74ABTH32318PN
SN74ABTH32318PNG4
Status (1)
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
LQFP
PN
80
119 Green (RoHS & CU NIPDAU Level-3-260C-168 HR
no Sb/Br)
LQFP
PN
80
119 Green (RoHS & CU NIPDAU Level-3-260C-168 HR
no Sb/Br)
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
MECHANICAL DATA
MTQF010A – JANUARY 1995 – REVISED DECEMBER 1996
PN (S-PQFP-G80)
PLASTIC QUAD FLATPACK
0,27
0,17
0,50
60
M
0,08
41
61
40
0,13 NOM
80
21
1
20
Gage Plane
9,50 TYP
0,25
12,20
SQ
11,80
0,05 MIN
0°–7°
14,20
SQ
13,80
0,75
0,45
1,45
1,35
Seating Plane
0,08
1,60 MAX
4040135 /B 11/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-026
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third-party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Audio
Amplifiers
amplifier.ti.com
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
Digital Control
Military
www.ti.com/broadband
www.ti.com/digitalcontrol
www.ti.com/military
Interface
Logic
interface.ti.com
logic.ti.com
Power Mgmt
Microcontrollers
power.ti.com
Optical Networking
Security
www.ti.com/opticalnetwork
www.ti.com/security
www.ti.com/telephony
www.ti.com/video
microcontroller.ti.com
Telephony
Video & Imaging
Wireless
www.ti.com/wireless
Mailing Address:
Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright 2006, Texas Instruments Incorporated
相关型号：
©2020 ICPDF网 联系我们和版权申明