74ALS620A-1N [NXP]
Transceivers; 收发器
| 型号： | 74ALS620A-1N |
| 厂家： | 
NXP |
| 描述： | Transceivers |
| 文件： | 总11页 (文件大小：104K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74ALS620A/74ALS620A–1
74ALS623A/74ALS623A–1
Transceivers
Product specification
IC05 Data Handbook
1991 Feb 08
Philips
Semiconductors
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
74ALS620A/74ALS620A-1 Octal bus transceiver, inverting (3-State)
74ALS623A/74ALS623A-1 Octal bus transceiver, non-inverting (3-State)
FEATURES
• Octal bidirectional bus interface
DESCRIPTION
The 74ALS620A and 74ALS623A are octal transceiver featuring
3-State bus compatible outputs in both transmit and receive
directions. The 74ALS620A is an inverting version of the
74ALS623A. The outputs are capable of sinking 24mA and sourcing
up to 15mA, providing very good capacitive drive characteristics.
• 3-State buffer outputs sink 24mA and source 15mA
• The -1 version sinks 48mA I within the +5% V range
OL
CC
The outputs for the 74ALS620A-1 and 74ALS623A are capable of
TYPICAL
TYPICAL
sinking up to 48mA when within the ±5% V range.
CC
PROPAGATION SUPPLY CURRENT
TYPE
These octal bus transceivers are designed for asynchronous
two-way communication between data buses. The control function
implementation allows for maximum flexibility in timing.
DELAY
(TOTAL)
74ALS620A/620A-1
74ALS623A/623A-1
4.0ns
33mA
4.0ns
38mA
These devices allow data transmission from the A bus to the B bus
or from B bus to A bus, depending on the logic levels at the enable
inputs (OEBA and OEAB). The enable inputs can be used to disable
the device so that the buses are effectively isolated. The
dual-enable configuration gives the 74ALS620A and 74ALS623A the
capability to store data by the simultaneous enabling of OEBA and
OEAB. Each output reinforces its input in this transceiver
configuration. Thus when both control inputs are enabled and all
other data sources to the two sets of the bus lines are at high
impedance, both sets of the bus lines (16 in all) will remain at their
last states.
ORDERING INFORMATION
ORDER CODE
DRAWING
NUMBER
COMMERCIAL RANGE
V
= 5V ±10%,
DESCRIPTION
CC
T
= 0°C to +70°C
amb
74ALS620AN, 74ALS620A-1N
74ALS623AN, 74ALS623A-1N
20-pin plastic DIP
20-pin plastic SOL
SOT146-1
SOT163-1
74ALS620AD, 74ALS620A-1D
74ALS623AD, 74ALS623A-1D
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74ALS (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
PINS
DESCRIPTION
A0 – A7, B0 – B7
OEBA, OEAB
Data inputs
1.0/1.0
1.0/1.0
20µA/0.1mA
20µA/0.1mA
15mA/24mA
15mA/48mA
Output Enable inputs
Data outputs
A0 – A7, B0 – B7
A0 – A7, B0 – B7
750/240
750/480
Data outputs (-1 version)
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
PIN CONFIGURATION – 74ALS620A/74ALS620A-1
PIN CONFIGURATION – 74ALS623A/74ALS623A-1
OEAB
A0
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
V
OEAB
A0
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
V
CC
CC
OEBA
B0
OEBA
B0
A1
A1
A2
A2
B1
B1
A3
A3
B2
B2
A4
A4
B3
B3
A5
A5
B4
B4
A6
A6
B5
B5
A7
A7
B6
B7
B6
B7
GND 10
GND 10
SC00101
SC00102
2
1991 Feb 08
853–0020 01670
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
LOGIC SYMBOL – 74ALS620A/74ALS620A-1
LOGIC SYMBOL – 74ALS623A/74ALS623A-1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
A0 A1 A2 A3 A4 A5 A6 A7
OEAB
OEBA
B0 B1 B2 B3 B4 B5 B6 B7
A0 A1 A2 A3 A4 A5 A6 A7
OEAB
OEBA
B0 B1 B2 B3 B4 B5 B6 B7
1
1
19
19
18 17 16 15 14 13 12 11
18 17 16 15 14 13 12 11
V
= Pin 20
V
= Pin 20
CC
CC
GND = Pin 10
GND = Pin 10
SC00103
SC00104
IEC/IEEE SYMBOL – 74ALS620A/74ALS620A-1
IEC/IEEE SYMBOL – 74ALS623A/74ALS623A-1
1
1
EN1
EN1
19
19
EN2
EN2
2
18
2
18
1
1
2
2
3
4
5
6
7
8
9
17
16
15
14
13
12
11
3
4
5
6
7
8
9
17
16
15
14
13
12
11
SC00105
SC00106
3
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
LOGIC DIAGRAM – 74ALS620A/74ALS620A-1
LOGIC DIAGRAM – 74ALS623A/74ALS623A-1
19
19
OEBA
OEBA
1
1
OEAB
OEAB
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
A0
A1
A2
A3
A4
A5
A6
A7
B0
B1
B2
B3
B4
B5
B6
B7
A0
A1
A2
A3
A4
A5
A6
A7
B0
B1
B2
B3
B4
B5
B6
B7
V
= Pin 20
V
= Pin 20
CC
CC
GND = Pin 10
GND = Pin 10
SC00107
SC00108
FUNCTION TABLE
INPUTS
OPERATING MODES
OEBA
OEAB
74ALS620A
B data to A Bus
A data to B Bus
Z
74ALS623A
B data to A Bus
A data to B Bus
Z
L
L
H
L
L
L
H
L
H
H
B data to A Bus
A data to B Bus
B data to A Bus
A data to B Bus
H
L
X
Z
=
=
=
=
High voltage level
Low voltage level
Don’t care
High impedance “off” state
4
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL
PARAMETER
RATING
–0.5 to +7.0
–0.5 to +7.0
–30 to +5
UNIT
V
V
CC
Supply voltage
Input voltage
Input current
V
V
IN
IN
I
mA
V
V
OUT
Voltage applied to output in High output state
–0.5 to V
CC
All versions
-1 version
48
96
mA
mA
°C
°C
I
Current applied to output in Low output state
OUT
T
Operating free-air temperature range
Storage temperature range
0 to +70
amb
T
–65 to +150
stg
RECOMMENDED OPERATING CONDITIONS
LIMITS
NOM
5.0
PARAMETER
SYMBOL
UNIT
MIN
4.5
MAX
V
CC
Supply voltage
5.5
V
V
V
IH
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
2.0
V
0.8
–18
–15
24
V
IL
IK
I
mA
mA
mA
mA
°C
I
OH
All versions
-1 version
I
OL
Low-level output current
1
48
T
amb
Operating free-air temperature range
0
+70
NOTE:
1. The 48mA limit applies only under the condition of V = 5.0V ±5%.
CC
5
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
1
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
2
MIN
– 2
TYP
MAX
I
= –0.4mA
V
V
V
OH
CC
V
V
= ±10%, V = MAX,
IL
CC
= MIN
IH
I
= –3mA
2.4
3.2
OH
V
OH
High-level output voltage
V
V
= MIN, V = MAX,
IL
= MIN
CC
IH
I
= –15mA
2.0
V
OH
I
I
= 12mA
= 24mA
0.25
0.35
0.40
0.50
V
V
OL
V
V
= MIN, V = MAX,
IL
= MIN
CC
IH
All versions
–1 versions
Low-level output
voltage
OL
V
OL
V
V
= 4.75V, V = MAX,
IL
= MIN
CC
IH
I
OL
= 48mA
0.35
0.50
V
V
Input clamp voltage
V
= MIN, I = I
IK
–0.73
–1.5
0.1
V
IK
CC
I
Input current at
maximum input
voltage
OEBA or OEAB
A or B ports
V
CC
= MAX, V = 7.0V
mA
I
I
I
V
CC
V
CC
V
CC
V
CC
= MAX, V = 5.5V
0.1
20
mA
µA
I
3
I
IH
High-level input current
= MAX, V = 2.7V
I
3
I
IL
Low-level input current
= MAX, V = 0.4V
–0.1
–112
34
mA
mA
mA
mA
mA
mA
mA
mA
I
4
I
O
Output current
= MAX, V = 2.25V
–30
O
I
24
42
45
24
41
46
CCH
74ALS620A
74ALS620A-1
I
49
V
CC
= MAX
= MAX
CCL
CCZ
CCH
I
52
I
Supply current (total)
CC
I
43
74ALS623A
74ALS623A-1
I
50
V
CC
CCL
I
55
CCZ
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable type.
2. All typical values are at V = 5V, T = 25°C.
CC
amb
3. For I/O ports, the parameter I and I include the off-state current.
IH
IL
4. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I
.
OS
6
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
AC ELECTRICAL CHARACTERISTICS FOR 74ALS620A/74ALS620A-1
LIMITS
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
SYMBOL
PARAMETER
TEST CONDITION
UNIT
C = 50pF, R = 500Ω
L
L
MIN
MAX
t
t
Propagation delay
An to Bn, Bn to An
2.0
2.0
10.0
10.0
PLH
PHL
Waveform 1
ns
ns
ns
ns
ns
t
t
t
t
Output enable time
OEBA to An
Waveform 3
Waveform 4
2.0
3.0
17.0
25.0
PZH
t
PZL
Output disable time
OEBA to An
Waveform 3
Waveform 4
2.0
2.0
12.0
18.0
PHZ
t
PLZ
Output enable time
OEAB to Bn
Waveform 3
Waveform 4
2.0
3.0
18.0
25.0
PZH
t
PZL
Output disable time
OEAB to Bn
Waveform 3
Waveform 4
2.0
3.0
12.0
18.0
PHZ
t
PLZ
AC ELECTRICAL CHARACTERISTICS FOR 74ALS623A/74ALS623A-1
LIMITS
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
SYMBOL
PARAMETER
TEST CONDITION
UNIT
C = 50pF, R = 500Ω
L
L
MIN
MAX
t
t
Propagation delay
An to Bn, Bn to An
2.0
2.0
13.0
11.0
PLH
PHL
Waveform 2
ns
ns
ns
ns
ns
t
t
t
t
Output enable time
OEBA to An
Waveform 3
Waveform 4
2.0
3.0
22.0
22.0
PZH
t
PZL
Output disable time
OEBA to An
Waveform 3
Waveform 4
2.0
2.0
16.0
19.0
PHZ
t
PLZ
Output enable time
OEAB to Bn
Waveform 3
Waveform 4
2.0
3.0
22.0
22.0
PZH
t
PZL
Output disable time
OEAB to Bn
Waveform 3
Waveform 4
2.0
2.0
16.0
19.0
PHZ
t
PLZ
7
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A-1
74ALS623A/74ALS623A-1
Transceivers
AC WAVEFORMS
For all waveforms, V = 1.3V.
M
An, Bn
V
A
B
, B
n
V
M
V
t
V
t
M
n
M
M
t
t
PLH
PHL
PHL
PLH
V
V
V
V
M
M
M
M
A
n,
n
Bn, An
SF00773
SF00202
Waveform 2. Propagation Delay for Non-inverting Outputs
Waveform 1. Propagation Delay for Inverting Outputs
OEBA
OEBA
V
t
V
M
M
V
V
M
M
OEAB
OEAB
V
-0.3V
0V
t
OH
PZL
PLZ
t
t
PHZ
PZH
V
An or Bn
M
An or Bn
V
M
V
+0.3V
OL
SF00413
SF00412
Waveform 3. 3-State Output Enable Time to High Level
and Disable Time from High Level
Waveform 4. 3-State Output Enable Time to Low Level
and Disable Time from Low Level
TEST CIRCUIT AND WAVEFORMS
t
w
AMP (V)
0.3V
V
CC
90%
90%
7.0V
NEGATIVE
PULSE
V
V
M
M
10%
10%
V
V
OUT
R
R
IN
L
L
PULSE
GENERATOR
D.U.T.
t
t )
f
t
t )
THL ( f
TLH ( r
R
C
L
T
t
t )
t
t )
TLH ( r
THL ( f
AMP (V)
0.3V
90%
90%
POSITIVE
PULSE
V
V
M
M
Test Circuit for 3-State Outputs
SWITCH POSITION
10%
10%
t
w
TEST
, t
SWITCH
closed
Input Pulse Definition
INPUT PULSE REQUIREMENTS
t
PLZ PZL
All other
open
Family
V
M
Rep.Rate
t
w
t
t
THL
Amplitude
DEFINITIONS:
TLH
R
L
C
L
R
T
=
=
=
Load resistor;
2.0ns
2.0ns
74ALS
3.5V
1.3V
1MHz
500ns
see AC electrical characteristics for value.
Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
Termination resistance should be equal to Z
pulse generators.
of
OUT
SC00072
8
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A–1
74ALS623A/74ALS623A–1
Transceivers
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
9
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A–1
74ALS623A/74ALS623A–1
Transceivers
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
10
1991 Feb 08
Philips Semiconductors
Product specification
74ALS620A/74ALS620A–1
74ALS623A/74ALS623A–1
Transceivers
DEFINITIONS
Data Sheet Identification
Product Status
Definition
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Objective Specification
Formative or in Design
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
Preliminary Specification
Product Specification
Preproduction Product
Full Production
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. PhilipsSemiconductorsmakesnorepresentationorwarrantythatsuchapplicationswillbesuitableforthespecifiedusewithoutfurthertesting
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
orsystemswheremalfunctionofaPhilipsSemiconductorsandPhilipsElectronicsNorthAmericaCorporationProductcanreasonablybeexpected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1997
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips
Semiconductors
相关型号：
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IC ALS SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDSO20, PLASTIC, SO-20, Bus Driver/Transceiver
NXP
74ALS623A-1D-T
IC ALS SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20, PLASTIC, SO-20, Bus Driver/Transceiver
NXP
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