74ACT11543 [TI]
OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS; 八路寄存收发器与3态输出
| 型号： | 74ACT11543 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS |
| 文件： | 总7页 (文件大小：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74ACT11543
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS136 – D3608, JULY 1990 – REVISED APRIL 1993
DW PACKAGE
(TOP VIEW)
• Inputs Are TTL-Voltage Compatible
• 3-State True Outputs
• Back-to-Back Registers for Storage
CEBA
A1
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
GBA
LEBA
B1
B2
B3
• Flow-Through Architecture Optimizes
2
PCB Layout
3
A2
A3
A4
GND
GND
GND
GND
A5
• Center-Pin V
and GND Configurations
Minimize High-Speed Switching Noise
4
CC
5
6
• EPIC (Enhanced-Performance Implanted
B4
7
CMOS) 1- m Process
V
V
CC
CC
8
• 500-mA Typical Latch-Up Immunity at 125°C
9
B5
B6
B7
B8
LEAB
GAB
10
11
12
13
14
description
A6
A7
A8
This 8-bit registered transceiver contains two sets
of D-type latches for temporary storage of data
flowing in either direction. Separate latch enable
(LEAB or LEBA) and output enable (GAB or GBA)
inputs are provided for each register to permit
independent control in either direction of data flow.
CEAB
The A-to-B enable (CEAB) input must be low in order to enter data from A or to output data to B. Having CEAB
low and LEAB low makes the A-to-B latches transparent; a subsequent low-to-high transition of LEAB puts the
A latches in the storage mode. With CEAB and GAB both low, the 3-state B outputs are active and reflect the
data present at the output of the A latches. Data flow from B-to-A is similar, but requires the use of CEBA, LEBA,
and GBA inputs.
The 74ACT11543 is characterized for operation from – 40°C to 85°C.
FUNCTION TABLE
LATCH
INPUTS
LEAB
OUTPUT BUFFERS
B1 THRU B8
STATUS
†
CEAB
GAB
A TO B
H
X
X
L
X
H
X
Storing
Storing
Z
H
L
L
Z
L
Transparent
Storing
Current A Data
Previous A Data
L
H
†
‡
A-to-B data flow is shown: B-to-A flow control is the same except uses
CEBA, LEBA, and GBA.
Data present before low-to-high transition of LEAB.
EPIC is a trademark of Texas Instruments Incorporated.
Copyright 1993, 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.
2–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
74ACT11543
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS136 – D3608, JULY 1990 – REVISED APRIL 1993
†
logic symbol
logic diagram (positive logic)
28
28
GBA
CEBA
LEAB
GAB
1EN
G1
GBA
1
1
27
15
14
16
CEBA
1C5
2EN4
G2
27
LEBA
CEAB
LEAB
15
GAB
2C6
14
2
26
CEAB
A1
3
5D
4
B1
16
6D
LEAB
3
25
24
23
20
19
18
17
A2
A3
A4
A5
A6
A7
A8
B2
B3
B4
B5
B6
B7
B8
2
C1
1D
4
A1
26
B1
5
10
11
12
13
C1
1D
To Seven Other Transceivers
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
‡
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
+ 0.5 V
I
CC
CC
Output voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
O
Input clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA
IK
I
I
CC
Output clamp current, I
(V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA
OK
O O CC
Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA
Continuous current through V
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
O
O
CC
CC
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 200 mA
‡
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.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
recommended operating conditions
MIN
NOM
MAX
UNIT
V
V
V
V
V
V
Supply voltage
4.5
2
5
5.5
CC
IH
IL
High-level input voltage
Low-level input voltage
Input voltage
V
0.8
V
0
0
V
V
V
I
CC
Output voltage
V
O
CC
I
High-level output current
Low-level output current
Input transition rise or fall rate
Operating free-air temperature
–24
24
mA
mA
ns/V
°C
OH
I
OL
t/ v
0
10
T
– 40
85
A
2–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
74ACT11543
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS136 – D3608, JULY 1990 – REVISED APRIL 1993
electrical characteristics over recommended operating free-air temperature range
T
A
= 25°C
PARAMETER
TEST CONDITIONS
V
MIN
MAX
UNIT
CC
MIN
4.4
TYP
MAX
4.5 V
5.5 V
4.5 V
5.5 V
5.5 V
4.5 V
5.5 V
4.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5 V
4.4
5.4
I
= – 50 A
OH
5.4
V
3.94
4.94
3.8
V
OH
I
I
I
= – 24 mA
= – 75 mA
OH
OH
OL
4.8
†
3.85
0.1
0.1
0.1
0.1
0.44
0.44
1.65
± 1
± 5
80
= 50
A
V
0.36
0.36
V
OL
I
I
= 24 mA
= 75 mA
OL
†
OL
I
I
I
Control inputs
V = V
or GND
± 0.1
± 0.5
8
A
A
I
I
CC
‡
A or B ports
V
= V
or GND
OZ
CC
I
O
CC
V = V
or GND,
I
= 0
O
A
I
CC
§
One input at 3.4 V, Other inputs at GND or V
0.9
1
mA
pF
pF
CC
CC
C
C
Control inputs
A or B ports
V = V
or GND
4.5
12
i
I
CC
= V or GND
CC
V
5 V
io
O
†
‡
§
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
For I/O ports, the parameter I includes the input leakage current.
OZ
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or V
.
CC
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
T
= 25°C
A
MIN
MAX
UNIT
ns
MIN
4
MAX
t
t
Pulse duration, LEAB or LEBA low
Setup time
4
2.5
3
w
2.5
3
Data after LEAB or LEBA↑
Data before CEAB or CEBA↑
Data after LEAB or LEBA↑
Data after CEAB or CEBA↑
ns
su
2
2
t
h
Hold time
ns
1.5
1.5
2–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
74ACT11543
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS136 – D3608, JULY 1990 – REVISED APRIL 1993
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
T
A
= 25°C
TYP
6.2
6.5
6.1
7.2
6.7
8.4
7.3
7.5
6.4
8
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
MIN
MAX
UNIT
ns
MIN
3.5
3.2
3
MAX
9.1
t
t
t
t
t
t
t
t
t
t
t
t
3.5
3.2
3
10.2
12.1
11.2
13.2
12.2
16
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
A or B
B or A
A or B
A or B
A or B
A or B
A or B
10.8
10.1
11.7
11.1
13.4
10.1
10.3
10.5
12.8
9.6
ns
LEBA or LEAB
CEBA or CEAB
CEBA or CEAB
GBA or GAB
GBA or GAB
3.7
3.5
3.2
4.8
5.1
3.3
3
3.7
3.5
3.2
4.8
5.1
3.3
3
ns
11
ns
11.1
11.5
15.3
10.4
10.5
ns
4.6
5
6.9
7.1
4.6
5
ns
9.8
operating characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
= 50 pF, f = 1 MHz
L
TYP
47
UNIT
Outputs enabled
Outputs disabled
C
Power dissipation capacitance per transceiver
C
pF
pd
13
2–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
74ACT11543
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS136 – D3608, JULY 1990 – REVISED APRIL 1993
PARAMETER MEASUREMENT INFORMATION
2 × V
CC
Open
GND
S1
500 Ω
From Output
Under Test
TEST
/t
S1
t
Open
PLH PHL
t
/t
2 × V
CC
GND
PLZ PZL
C
= 50 pF
L
500 Ω
t
/t
(see Note A)
PHZ PZH
LOAD CIRCUIT
3 V
0 V
Timing Input
(see Note B)
1.5 V
t
w
t
h
t
3 V
su
3 V
0 V
Input
1.5 V
1.5 V
1.5 V
1.5 V
Data Input
0 V
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
Output
Control
(low-level
enabling)
3 V
0 V
3 V
0 V
Input
(see Note B)
1.5 V
1.5 V
1.5 V
1.5 V
t
PZL
t
t
PHL
PLH
t
PLZ
Output
Waveform 1
V
OH
V
CC
In-Phase
Output
50% V
50% V
CC
50% V
50% V
CC
V
CC
20% V
S1 at 2 × V
(see Note C)
CC
CC
CC
V
V
OL
OL
t
PHZ
t
PLH
t
t
PHL
PZH
Output
Waveform 2
S1 at GND
V
OH
OH
0 V
Out-of-Phase
Output
80% V
50% V
50% V
CC
CC
CC
V
OL
(see Note C)
VOLTAGE WAVEFORMS
NOTES: A. C includes probe and jig capacitance.
VOLTAGE WAVEFORMS
L
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z = 50 Ω, t = 3 ns, t = 3 ns.
O
r
f
C. 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.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
2–5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2–6
IMPORTANT NOTICE
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any product or service without notice, and advise customers to obtain the latest version of relevant information
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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
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