74F241AN [NXP]
IC,BUFFER/DRIVER,DUAL,4-BIT,F-TTL,DIP,20PIN,PLASTIC;
| 型号： | 74F241AN |
| 厂家： | 
NXP |
| 描述： | IC,BUFFER/DRIVER,DUAL,4-BIT,F-TTL,DIP,20PIN,PLASTIC 驱动 光电二极管 逻辑集成电路 |
| 文件： | 总12页 (文件大小：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F240/74F240A
Octal inverter buffer (3-State)
74F241/74F241A
Octal buffer (3-State)
Product specification
IC15 Data Handbook
1991 Jan 02
Philips
Semiconductors
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
FEATURES
DESCRIPTION
The 74F240 and 74F241 are octal buffers that are ideal for
driving bus lines of buffer memory address registers. The
outputs are all capable of sinking 64mA and sourcing up to
15mA. The device features two output enables, each
controlling four of the 3–state outputs.
• Octal bus interface
• 3-State buffer outputs sink 64mA
• 15mA source current
• Guaranteed output skew less than 2.0ns
(74F240A/74F241A)
The 74F240A and 74F241A are functionally equivalent to
their non–A counterparts. They have been designed to
reduce effects of ground noise. Other advantages are noted
in the features.
• Reduced ground bounce (74F240A/74F241A)
• Reduced ICC (74F241A only)
• Reduced loading (74F240A IIL = 100µA,
74F241A IIL = 40µA)
TYPE
TYPICAL PROPAGATION DELAY
TYPICAL SUPPLY CURRENT (TOTAL)
74F240
74F240A
74F241
74F241A
4.3ns
3.8ns
5.0ns
4.5ns
37mA
40mA
53mA
32mA
ORDERING INFORMATION
ORDER CODE
COMMERCIAL RANGE
= 5V ±10%, T = 0°C to +70°C
DESCRIPTION
PKG DWG #
V
CC
amb
20–pin plastic DIP
20–pin plastic SOL
20-pin plastic SSOP II
N74F240N, N74F240AN, N74F241N, N74F241AN
N74F240D, N74F240AD, N74F241D, N74F241AD
N74F240DB
SOT146-1
SOT163-1
SOT339-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
74F (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
PINS
DESCRIPTION
Data inputs (74F240)
Data inputs (74F240A)
Data inputs (74F241)
Data inputs (74F241A)
1.0/1.67
1.0/0.167
1.0/2.67
1.0/0.067
20µA/1.0mA
20µA/100µA
20µA/1.6mA
20µA/40µA
Ian, Ibn
OEa, OEb
OEa, OEb
Output enable inputs (active low) (74F240)
Output enable inputs (active low) (74F240A)
Output enable input (74F241)
1.0/0.33
1.0/0.167
1.0/1.67
20µA/0.2mA
20µA/100µA
20µA/1.0mA
20µA/40µA
15mA/64mA
15mA/64mA
Output enable input (74F241A)
1.0/0.067
750/106.7
750/106.7
Yan, Ybn
Yan, Ybn
Data outputs (74F241, 74F241A)
Data outputs (74F240, 74F240A)
Note to input and output loading and fan out table
One (1.0) FAST unit load is defined as: 20µA in the high state and 0.6mA in the low state.
2
January 2, 1991
853–0355 01345
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
PIN CONFIGURATION FOR 74F240/74F240A
IEC/IEEE SYMBOL FOR 74F240/74F240A
OEa
Ia0
1
2
3
4
5
6
7
8
9
20 V
CC
1
EN1
EN2
19 OEb
18 Ya0
17 Ib0
16 Ya1
15 Ib1
14 Ya2
13 Ib2
12 Ya3
11 Ib3
19
Yb0
Ia1
2
4
18
16
14
12
2D
1
2
Yb1
Ia2
6
8
Yb2
Ia3
17
3
5
15
13
11
Yb3
7
9
GND 10
SF00320
SF00322
LOGIC SYMBOL FOR 74F240/74F240A
LOGIC DIAGRAM FOR 74F240/74F240A
2
18
17
3
5
Ia0
Ia1
Ya0
Ya1
Ib0
Ib1
Yb0
Yb1
2
4
6
8
17 15 13 11
4
16
15
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
OEa
OEb
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
1
6
8
14
12
13
11
7
9
Ia2
Ia3
Ya2
Ya3
Ib2
Ib3
Yb2
Yb3
19
1
10
OEa
OEb
18 16 14 12
3
5
7
9
V
= Pin 20
V
= Pin 20
CC
CC
GND = Pin 10
GND = Pin 10
SF00321
SF00323
FUNCTION TABLE FOR 74F240/74F240A
INPUTS
OUTPUTS
OEa
L
Ia
L
OEb
Ib
L
Ya
H
L
Yb
H
L
L
L
L
H
X
H
X
H
H
Z
Z
Notes to function table for 74F240/74F240A
H = High voltage level
L
X
Z
=
=
=
Low voltage level
Don’t care
High impedance ”off” state
3
January 2, 1991
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
PIN CONFIGURATION FOR 74F241/74F241A
IEC/IEEE SYMBOL FOR 74F241/74F241A
1
OEa
Ia0
1
2
3
4
5
6
7
8
9
20
V
CC
EN1
EN2
19
19 OEb
18 Ya0
17 Ib0
16 Ya1
15 Ib1
14 Ya2
13 Ib2
12 Ya3
11 Ib3
Yb0
Ia1
2
4
18
16
14
12
2D
1
Yb1
Ia2
6
8
Yb2
Ia3
17
3
5
2
15
Yb3
7
9
13
11
GND 10
SF00326
SF00324
LOGIC SYMBOL FOR 74F241/74F241A
LOGIC DIAGRAM FOR 74F241/74F241A
17
15
3
5
2
4
18
16
2
4
6
8
17 15 13
11
Ib0
Ib1
Yb0
Yb1
Ia0
Ia1
Ya0
Ya1
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
1
OEa
OEb
13
7
9
6
14
12
Ib2
Ib3
Yb2
Yb3
Ia2
Ia3
Ya2
Ya3
19
11
10
8
1
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
OEb
OEa
18 16 14 12
3
5
7
9
V
= Pin 20
V
= Pin 20
CC
CC
GND = Pin 10
GND = Pin 10
SF00325
SF00327
FUNCTION TABLE FOR 74F241/74F241A
INPUTS
OUTPUTS
OEa
L
Ia
L
OEb
Ib
L
Ya
L
Yb
L
H
H
L
L
H
X
H
X
H
Z
H
Z
H
Notes to function table for 74F241/74F241A
H = High voltage level
L
X
Z
=
=
=
Low voltage level
Don’t care
High impedance ”off” state
4
January 2, 1991
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
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
V
IN
Supply voltage
Input voltage
Input current
V
I
IN
mA
V
I
Voltage applied to output in high output state
Current applied to output in low output state
–0.5 to V
V
OUT
CC
128
mA
°C
°C
OUT
T
amb
Operating free air temperature range
Storage temperature range
0 to +70
T
stg
–65 to +150
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
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
2.0
0.8
–18
–15
64
V
I
I
I
mA
mA
mA
Ik
High–level output current
Low–level output current
OH
OL
T
amb
Operating free air temperature range
0
+70
°C
5
January 2, 1991
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST
LIMITS
UNIT
1
2
CONDITIONS
MIN TYP
MAX
±10%V
V
V
V
= MIN,
I
= –3mA
2.4
2.7
2.0
2.0
V
V
V
V
C
CC
OH
C
V
OH
High-level output voltage
±5%V
= MAX,
= MIN
3.4
CC
IL
±10%V
I
=
C
IH
OH
–15mA
C
±5%V
CC
V
V
= MIN,
= MAX,
±10%V
CC
IL
C
V
V
Low-level output voltage
I
OL
= MAX
0.50
0.50
V
OL
C
V
V
V
V
= MIN,
±5%V
0.42
V
IH
CC
Input clamp voltage
= MIN, I = I
IK
–0.73 -1.2
100
V
IK
CC
CC
CC
I
I
I
Input current at maximum input voltage
High–level input current
= MAX, V = 7.0V
µA
µA
mA
µA
mA
mA
µA
I
I
IH
= MAX, V = 2.7V
20
I
74F240 all inputs
–1.0
74F240A all inputs
74F241 OEa, OEb
74F241 Ian, Ibn
–100
–1.0
I
I
Low–level input current
V
CC
= MAX, V = 0.5V
I
IL
–1.6
74F241A all inputs
–40
Off–state output current,
high–level voltage applied
µA
µA
V
CC
= MAX, V = 2.7V
50
OZH
O
Off–state output current,
low–level voltage applied
I
I
V
V
= MAX, V = 0.5V
–50
OZL
CC
O
3
Short–circuit output current
= MAX
-100
-225
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
OS
CC
I
I
12
50
35
28
58
34
40
60
65
20
49
26
18
70
45
37
75
50
60
90
90
30
65
40
CCH
74F240
74F240A
74F241
I
CCL
CCZ
CCH
V
CC
= MAX
I
I
CCL
CCZ
CCH
I
Supply current (total)
I
CC
I
I
I
CCL
CCZ
CCH
V
CC
= MAX
I
I
74F241A
I
CCL
CCZ
Notes to DC electrical characteristics
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.
amb
CC
3. Not more than one output should be shorted at a time. For testing I , the use of high-speed test apparatus and/or sample-and-hold
OS
techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting
of a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any
sequence of parameter tests, I tests should be performed last.
OS
6
January 2, 1991
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
= +25°C
= +5.0V
T
= 0°C to +70°C
= +5.0V ± 10%
amb
amb
V
SYMBOL
PARAMETER
TEST
V
UNIT
CC
CC
CONDITION
C = 50pF, R = 500Ω
C = 50pF, R = 500Ω
L
L
L
L
MIN
TYP
MAX
MIN
MAX
t
t
Propagation delay
Ian, Ibn to Yn
3.0
2.0
4.5
3.0
6.5
4.5
3.0
2.0
7.5
5.0
PLH
PHL
Waveform 1
ns
ns
ns
ns
ns
t
t
Output enable time
to high or low level
Waveform 3
Waveform 4
3.0
4.5
5.0
6.5
7.5
8.5
3.0
4.0
9.0
10.0
PZH
PZL
74F240
t
t
Output disable time
from high or low level
Waveform 3
Waveform 4
3.0
3.0
5.5
5.0
7.0
7.0
3.0
3.0
7.5
7.5
PHZ
PLZ
t
t
Propagation delay
Ian, Ibn to Yn
2.5
2.0
4.0
3.5
5.5
5.5
2.0
2.0
6.5
6.0
PLH
PHL
Waveform 1
t
t
Output enable time
to high or low level
Waveform 3
Waveform 4
2.0
3.5
4.0
5.0
6.5
7.5
2.0
3.0
7.0
8.5
PZH
PZL
74F240A
t
t
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
1.5
3.5
2.5
6.0
5.0
1.5
1.0
6.5
5.5
PHZ
PLZ
ns
ns
ns
1, 2
t
Output skew
Waveform 5
Waveform 2
1.5
2.0
sk(0)
t
t
Propagation delay
Ian, Ibn to Yn
2.5
2.5
4.0
4.0
5.2
5.2
2.5
2.5
6.2
6.5
PLH
PHL
t
t
Output enable time
to high or low level
Waveform 3
Waveform 4
2.0
2.0
4.0
5.0
5.7
7.0
2.0
2.0
6.7
8.0
PZH
PZL
74F241
ns
ns
ns
ns
t
t
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
2.0
4.0
4.0
6.0
6.0
2.0
2.0
7.0
7.0
PHZ
PLZ
t
t
Propagation delay
Ian, Ibn to Yn
2.5
2.5
4.5
4.5
5.8
5.8
2.5
2.5
6.5
6.5
PLH
PHL
Waveform 2
t
t
Output enable time
to high or low level
Waveform 3
Waveform 4
2.5
3.5
4.5
5.0
6.0
7.0
2.0
3.0
6.7
8.0
PZH
PZL
74F241A
t
t
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
1.5
4.0
3.5
6.0
5.5
1.5
1.0
6.5
6.0
PHZ
PLZ
ns
ns
1, 2
t
Output skew
Waveform 5
1.5
2.0
sk(0)
Notes to AC electrical characteristics
1. | t actual – t actual| for any output compared to any other output where N and M are either LH or HL.
PN
PM
2. Skew times are valid only under same test conditions (temperature, V , loading, etc.,).
CC
AC WAVEFORMS
Ian, Ibn
V
Ian, Ibn
V
M
V
V
M
M
M
t
t
t
t
PHL
PLH
PHL
PLH
Yn
V
V
V
V
M
M
M
Yn
M
SF00328
SF00329
Waveform 1. Propagation delay for inverting outputs
Waveform 2. Propagation delay for non–invertIng outputs
7
January 2, 1991
Philips Semiconductors
Product specification
74F240/74F240A/
74F241/74F241A
Buffers
OEn
Yn, Yn
Yn, Yn
V
V
V
M
M
M
OEb
V
-0.3V
0V
OH
t
t
t
PHZ
sk(0)
PZH
Yn, Yn
V
M
V
M
SF00332
SF00330
Waveform 3. 3-state output enable time to high level
and output disable time from high level
Waveform 5. Output skew
Notes to AC waveforms
1. For all waveforms, V = 1.5V.
2. The shaded areas indicate when the input is permitted to change
for predictable output performance.
OEn
OEb
M
V
t
V
M
M
t
PZL
PLZ
3.5V
V
M
Yn, Yn
V
+0.3V
OL
SF00331
Waveform 4. 3-state output enable time to low level and output
disable time from low level
TEST CIRCUIT AND WAVEFORMS
V
CC
t
w
AMP (V)
0V
7.0V
90%
90%
NEGATIVE
PULSE
V
V
M
R
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
10%
10%
t
w
SWITCH POSITION
TEST
SWITCH
closed
closed
open
Input Pulse Definition
t
t
PLZ
PZL
All other
DEFINITIONS:
R
L
C
L
R
T
=
=
=
Load resistor;
INPUT PULSE REQUIREMENTS
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.
family
V
M
rep. rate
t
w
t
t
THL
amplitude
TLH
of
OUT
2.5ns
2.5ns
74F
3.0V
1.5V
1MHz
500ns
SF00128
8
January 2, 1991
Philips Semiconductors
Product specification
74F240/74F240A
74F241/74F241A
Buffers
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
9
1991 Jan 02
Philips Semiconductors
Product specification
74F240/74F240A
74F241/74F241A
Buffers
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
10
1991 Jan 02
Philips Semiconductors
Product specification
74F240/74F240A
74F241/74F241A
Buffers
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
11
1991 Jan 02
Philips Semiconductors
Product specification
74F240/74F240A
74F241/74F241A
Buffers
Data sheet status
[1]
Data sheet
status
Product
status
Definition
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
Production
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
Product
specification
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.
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Righttomakechanges—PhilipsSemiconductorsreservestherighttomakechanges, withoutnotice, intheproducts, includingcircuits,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.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
print code
Date of release: 10-98
9397-750-05101
Document order number:
Philips
Semiconductors
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