933769320602 [NXP]
IC F/FAST SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20, 0.300 INCH, PLASTIC, SOT-146-1, DIP-20, Bus Driver/Transceiver;
| 型号： | 933769320602 |
| 厂家： | 
NXP |
| 描述： | IC F/FAST SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDIP20, 0.300 INCH, PLASTIC, SOT-146-1, DIP-20, Bus Driver/Transceiver 光电二极管 输出元件 逻辑集成电路 |
| 文件： | 总10页 (文件大小：88K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F621
Octal bus transceiver, non-inverting
(open collector)
Product specification
IC15 Data Handbook
1996 Jan 05
Philips
Semiconductors
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
FEATURES
PIN CONFIGURATION
• High-impedance NPN base inputs for reduced loading
(20µA in High and Low states)
OEAB
1
2
3
4
5
20
V
CC
19 OEBA
18 B0
A0
A1
A2
A3
A4
A5
A6
A7
• Octal bidirectional bus interface
• Open collector outputs sink 64mA
• Non-inverting
B1
B2
B3
B4
B5
B6
17
16
15
14
13
12
6
7
8
9
DESCRIPTION
The 74F621 is an octal transceiver featuring non-inverting open
collector bus-compatible outputs in both send and receive
directions. The outputs are capable of sinking 64mA, providing very
good capacitive drive characteristics.
GND 10
11 B7
This octal bus transceiver is designed for asynchronous two-way
communication between data buses. The control function
implementation allows for maximum flexibility in timing.
SF01135
The device allows data transmission from the A bus to the B bus or
from the B bus to the A bus, depending upon 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.
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY CURRENT
(TOTAL)
TYPE
The dual-enable configuration gives the 74F621 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 bus
lines (16 in all) will remain in their last states.
74F621
8.0ns
105mA
ORDERING INFORMATION
COMMERCIAL RANGE
= 5V ±10%,
T
PKG
DWG #
V
amb
DESCRIPTION
CC
= 0°C to +70°C
20-pin plastic DIP
20-pin plastic SOL
N74F621N
SOT146-1
SOT163-1
N74F621D
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74F(U.L.)
LOAD VALUE
HIGH/LOW
PINS
DESCRIPTION
HIGH/LOW
1.0/0.033
1.0/0.033
OC/40
A0 - A7, B0 - B7
OEBA, OEAB
A0 - A7
Data inputs
20µA/20µA
20µA/20µA
OC/24mA
OC/64mA
Output Enable inputs
Data outputs
B0 - B7
Data outputs
OC/106.7
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High state and 0.6mA in the Low state. OC = Open Collector.
2
1996 Jan 05
853–0380 16185
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
19
1
EN1
EN2
2
3
4
5
6
7
8
9
A0
A1
A2
A3 A4 A5
A6
A7
18
17
2
1
1
OEAB
OEBA
2
3
19
4
5
16
15
B0
B1
B2
B3 B4 B5
B6
B7
6
7
14
13
18
17
16 15 14
13 12
11
V
GND
=
=
Pin 20
Pin 10
CC
SF01126
8
12
11
9
SF01137
LOGIC DIAGRAM
FUNCTION TABLE
INPUTS
19
OPERATING MODES
OEBA
OEBA
OEAB
1
OEAB
L
H
H
L
H
L
B data to A bus
A data to B bus
OFF
2
18
17
A0
B0
B1
3
B data to A bus
A data to B bus
A1
L
H
16
15
14
13
4
H = High voltage level
A2
B2
B3
L
X
=
=
Low voltage level
Don’t care
OFF= High if pull-up resistor is connected to open collector output
5
A3
6
A4
B4
7
A5
B5
B6
B7
8
12
11
A6
9
A7
V
=
=
Pin 20
Pin 10
CC
GND
SF01130
3
1996 Jan 05
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits 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
–0.5 to +5.5
48
UNIT
V
V
Supply voltage
Input voltage
Input current
CC
IN
V
V
I
mA
V
IN
V
OUT
Voltage applied to output in High output state
A0–A7
B0–B7
mA
mA
°C
°C
I
Current applied to output in Low output state
OUT
128
T
amb
Operating free-air temperature range
Storage temperature range
0 to +70
T
stg
–65 to +150
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
UNIT
MIN
4.5
NOM
MAX
V
Supply voltage
5.0
5.5
V
V
CC
IH
IL
V
V
High-level input voltage
Low-level input voltage
Input clamp current
High-level output current
2.0
0.8
–18
4.5
24
V
I
mA
V
IK
V
OH
A0–A7
B0–B7
mA
mA
°C
I
Low-level output current
OL
64
T
amb
Operating free-air temperature range
0
70
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
NO TAG
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
TYP
MIN
MAX
NO TAG
I
High-level output current
V
= MIN, V = MAX, V =MIN, V = MAX
250
0.50
0.50
0.55
0.55
–1.2
100
µA
V
OH
CC
IL
IH
OH
±10%V
0.35
0.35
0.38
0.42
–0.73
CC
CC
A0–A7
B0–B7
I
OL
= 24mA
V
CC
= MIN,
±5%V
V
Low-level output
voltage
V
IL
= MAX,
= MIN,
V
V
OL
I
I
= 48mA
= 64mA
±10%V
V
V
IH
OL
CC
CC
±5%V
V
OL
Input clamp voltage
V
= MIN, I = I
IK
V
IK
CC
I
Input current at
maximum input
voltage
OEBA, OEAB
others
V
= MAX, V = 7.0V
µA
CC
I
I
I
V
V
V
= 0.0V, V = 5.5V
1
mA
µA
CC
I
I
I
High-level input current
Low-level input current
= MAX, V = 2.7V
20
IH
CC
CC
I
= MAX, V = 0.5V
–20
140
µA
IL
I
I
OEBA = OEAB = A0–A7 = 4.5V
105
105
mA
CCH
Supply current
(total)
I
V
= MAX
CC
CC
OEBA = OEAB = 4.5V,
A0–A7 = GND
I
140
mA
CCL
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
4
1996 Jan 05
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
AC ELECTRICAL CHARACTERISTICS
LIMITS
V
amb
= +5V
= +25°C
V
amb
= +5V ± 10%
= 0°C to +70°C
CC
CC
TEST
CONDITION
T
T
SYMBOL
PARAMETER
UNIT
C = 50pF, R = 500Ω
C = 50pF, R = 500Ω
L L
L
L
MIN
TYP
MAX
MIN
MAX
t
t
Propagation delay
An to Bn
6.0
4.0
9.5
6.0
12.0
8.0
5.5
3.5
13.0
8.5
PLH
PHL
Waveform 1
Waveform 1
Waveform 2
Waveform 3
ns
ns
ns
ns
t
t
Propagation delay
Bn to An
6.0
3.5
9.0
5.5
12.0
7.5
5.5
3.0
12.5
8.0
PLH
PHL
t
t
Propagation delay
OEBA to An
6.0
3.5
10.0
6.5
13.5
10.5
5.5
3.0
14.0
11.0
PLH
PHL
t
t
Propagation delay
OEAB to Bn
7.0
3.5
12.0
6.5
15.0
9.5
6.0
3.0
17.0
10.0
PLH
PHL
AC WAVEFORMS
For all waveforms, V = 1.5V.
M
An or Bn
V
M
V
M
t
t
PHL
PLH
V
V
M
M
Bn or An
SF01132
Waveform 1. For Non-Inverting Outputs
OEBA
OEAB
V
V
M
V
V
M
M
M
t
t
t
t
PLH
PLH
PHL
PHL
V
V
V
V
M
M
M
M
Bn
Bn
SF01138
SF01139
Waveform 2. Propagation Delay, OEBA to An
Waveform 3. Propagation Delay, OEAB to Bn
5
1996 Jan 05
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
TYPICAL PROPAGATION DELAYS VERSUS LOAD FOR OPEN COLLECTOR OUTPUTS
18
16
14
12
t
t
PLH
10
8
Propagation
delay (ns)
6
PHL
4
2
0
0
100
200
300
400
500
600
Load Resistor (W)
SF01153
NOTE:
When using open-collector parts, the value of the pull-up resistor greatly affects the value of the t
. For example, changing the pull-up
. However, if the pull-up resistor is
PLH
resistor value from 500W to 100W will improve the t
up to 50% with only slight increase in the t
PLH
PHL
changed, the user must take certain that the total I current through the resistor and the total I ’s of the receivers do not exceed the I
OL
IL
OL
maximum specification.
TEST CIRCUIT AND WAVEFORMS
7.0V
R
V
CC
t
w
AMP (V)
0V
90%
90%
NEGATIVE
PULSE
V
V
M
M
L
V
V
OUT
IN
10%
10%
PULSE
GENERATOR
D.U.T.
t
t )
t
t )
THL ( f
TLH ( r
R
C
R
L
T
L
t
t )
t
t )
TLH ( r
THL ( f
AMP (V)
0V
90%
M
90%
POSITIVE
PULSE
V
V
M
Test Circuit for Open Collector Outputs
DEFINITIONS:
10%
10%
t
w
R
L
C
L
R
T
=
=
=
Load resistor;
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.
Input Pulse Definition
of
INPUT PULSE REQUIREMENTS
OUT
family
V
M
rep. rate
t
w
t
t
THL
amplitude
TLH
2.5ns
2.5ns
74F
3.0V
1.5V
1MHz
500ns
SF00027
6
1996 Jan 05
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
7
1996 Jan 05
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
8
1996 Jan 05
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
NOTES
9
1996 Jan 05
Philips Semiconductors
Product specification
Octal bus transceiver, non-inverting (open collector)
74F621
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
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips Semiconductors and Philips Electronics North America Corporation
register eligible circuits under the Semiconductor Chip Protection Act.
Copyright Philips Electronics North America Corporation 1996
All rights reserved. Printed in U.S.A.
(print code)
Date of release: July 1994
9397-750-05147
Document order number:
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