SN74ABT573DB [TI]
ABT SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20;
| 型号： | SN74ABT573DB |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | ABT SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 驱动 信息通信管理 光电二极管 输出元件 逻辑集成电路 |
| 文件： | 总7页 (文件大小：106K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN54ABT573, SN74ABT573A
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS190C – JANUARY 1991 – REVISED JANUARY 1997
SN54ABT573 . . . J OR W PACKAGE
SN74ABT573A . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
State-of-the-Art EPIC-ΙΙB BiCMOS Design
Significantly Reduces Power Dissipation
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
OE
1D
2D
3D
4D
5D
6D
7D
8D
V
CC
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
1Q
2Q
3Q
4Q
5Q
6Q
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
Typical V
(Output Ground Bounce) < 1 V
OLP
at V
= 5 V, T = 25°C
CC
A
High-Drive Outputs (–32-mA I , 64-mA I
OH
)
OL
13 7Q
12 8Q
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK),
Plastic (N) and Ceramic (J) DIPs, and
Ceramic Flat (W) Packages
11
GND
LE
SN54ABT573 . . . FK PACKAGE
(TOP VIEW)
description
These 8-bit latches feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads. They are
particularly suitable for implementing buffer
registers, I/O ports, bidirectional bus drivers, and
working registers.
3
2
1
20 19
18
2Q
3Q
4Q
5Q
6Q
3D
4D
5D
6D
7D
4
5
6
7
8
17
16
15
14
9 10 11 12 13
The eight latches of the SN54ABT573 and
SN74ABT573A are transparent D-type latches.
While the latch-enable (LE) input is high, the Q
outputs follow the data (D) inputs. When LE is
taken low, the Q outputs are latched at the logic
levels set up at the D inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive
the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus
lines without need for interface or pullup components.
OE does not affect the internal operations of the latches. Old data can be retained or new data can be entered
while the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup
CC
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT573 is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74ABT573A is characterized for operation from –40°C to 85°C.
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.
EPIC-ΙΙB is a trademark of Texas Instruments Incorporated.
Copyright 1997, 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
SN54ABT573, SN74ABT573A
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS190C – JANUARY 1991 – REVISED JANUARY 1997
FUNCTION TABLE
(each latch)
INPUTS
OUTPUT
Q
OE
L
LE
H
H
L
D
H
L
H
L
L
L
X
X
Q
0
H
X
Z
†
logic symbol
1
OE
LE
EN
11
C1
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
1D
2D
3D
4D
5D
6D
7D
8D
1D
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
1
OE
11
LE
C1
1D
19
1Q
2
1D
To Seven Other Channels
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABT573, SN74ABT573A
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS190C – JANUARY 1991 – REVISED JANUARY 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 (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 : SN54ABT573 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA
O
SN74ABT573A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115°C/W
JA
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128°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 EIA/JEDEC Std JESD51, except for through-hole packages,
which use a trace length of zero.
recommended operating conditions (see Note 3)
SN54ABT573 SN74ABT573A
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
CC
0
V
CC
V
I
I
High-level output current
Low-level output current
Input transition rise or fall rate
Operating free-air temperature
–24
48
–32
64
5
mA
mA
ns/V
°C
OH
OL
I
∆t/∆v
Outputs enabled
5
T
–55
125
–40
85
A
NOTE 3: Unused inputs must be held high or low to prevent them from floating.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABT573, SN74ABT573A
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS190C – JANUARY 1991 – REVISED JANUARY 1997
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
T
= 25°C
SN54ABT573 SN74ABT573A
A
PARAMETER
TEST CONDITIONS
UNIT
†
MIN TYP
MAX
MIN
MAX
MIN
MAX
V
V
V
V
= 4.5 V,
= 4.5 V,
= 5 V,
I = –18 mA
–1.2
–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
2.5
3
OH
OH
OH
OH
OL
OL
V
OH
V
2
2
V
= 4.5 V
= 4.5 V
CC
CC
2*
2
0.55
0.55
V
V
V
V
OL
0.55*
0.55
100
mV
µA
µA
µA
µA
µA
mA
µA
mA
µA
hys
I
I
I
I
I
I
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 5.5 V,
= 5.5 V,
= 5.5 V,
= 0,
V = V or GND
I CC
±1
±1
±1
I
‡
10
‡
10
‡
10
V
O
V
O
= 2.7 V
= 0.5 V
OZH
OZL
off
‡
–10
‡
–10
‡
–10
V or V ≤ 4.5 V
±100
50
±100
50
I
O
= 5.5 V,
= 5.5 V,
V
= 5.5 V
Outputs high
50
–180
250
30
CEX
O
O
§
V
= 2.5 V
–50
–100
1
–180
250
30
–50
–50
–180
250
30
O
Outputs high
Outputs low
V
= 5.5 V, I = 0,
O
CC
I
24
CC
V = V
I
or GND
CC
Outputs disabled
0.5
250
250
250
V
= 5.5 V, One input at 3.4 V,
CC
Other inputs at V
¶
1.5
1.5
1.5
mA
∆I
CC
or GND
CC
V = 2.5 V or 0.5 V
C
C
3.5
6.5
pF
pF
i
I
V
O
= 2.5 V or 0.5 V
o
* On products compliant to MIL-PRF-38535, this parameter does not apply.
†
‡
§
¶
All typical values are at V
= 5 V.
CC
This data sheet limit may vary among suppliers.
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)
SN54ABT573
V
T
= 5 V,
= 25°C
CC
A
UNIT
MIN
MAX
MIN
3.3
1.9
1.5
MAX
t
t
Pulse duration, LE high
Setup time, data before LE↓
Hold time, data after LE↓
3.3
2.5
2.5
2.5
ns
ns
w
High
Low
su
t
h
1
ns
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABT573, SN74ABT573A
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS190C – JANUARY 1991 – REVISED JANUARY 1997
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
SN74ABT573A
V
T
= 5 V,
= 25°C
CC
A
UNIT
MIN
MAX
MIN
3.3
1.9
1.5
MAX
t
w
t
su
t
h
Pulse duration, LE high
3.3
1.9
1.5
ns
ns
ns
High
Low
Setup time, data before LE↓
Hold time, data after LE↓
†
1.8
†
1.8
†
This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C = 50 pF (unless otherwise noted) (see Figure 1)
L
SN54ABT573
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 5 V,
PARAMETER
UNIT
T
= 25°C
TYP
3.2
A
MIN
MAX
MIN
1.9
2.2
2.2
3.2
1.2
2.7
2.5
2
MAX
5.4
5.7
6.1
6.7
4.7
6.2
6.4
6
t
t
t
t
t
t
t
t
1.4
1.6
2
6.4
6.7
7.1
7.5
6.2
7.2
7.7
7
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
D
Q
Q
Q
Q
ns
ns
ns
ns
4.2
4
LE
OE
OE
5.2
2.8
0.8
2
3.2
4.7
4.9
2.2
1.4
4.2
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, C = 50 pF (unless otherwise noted) (see Figure 1)
L
SN74ABT573A
= 5 V,
FROM
(INPUT)
TO
(OUTPUT)
V
CC
A
PARAMETER
UNIT
T
= 25°C
TYP
3.2
MIN
MAX
MIN
1.9
2.2
2.2
3.2
1.2
MAX
5.4
5.7
6.1
6.7
4.7
6.2
6.4
6
t
t
t
t
t
t
t
t
1.9
2.2
2.2
3.2
1.2
5.9
6.2
6.6
7.2
5.2
6.7
PLH
PHL
PLH
PHL
PZH
PZL
PHZ
PLZ
D
Q
Q
Q
Q
ns
ns
ns
ns
4.2
4
LE
OE
OE
5.2
3.2
†
†
2.5
2.5
4.7
†
2.5
2
4.9
2.5
2
7.1
6.5
4.2
†
This data sheet limit may vary among suppliers.
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN54ABT573, SN74ABT573A
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS190C – JANUARY 1991 – REVISED JANUARY 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
PHL
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
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
6
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
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