74F455 [NXP]
Buffers/drivers; 缓冲器/驱动器型号: | 74F455 |
厂家: | NXP |
描述: | Buffers/drivers |
文件: | 总12页 (文件大小:107K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F455*, 74F456
Buffers/drivers
* Discontinued part. Please see the Discontinued Product List.
Product specification
1999 Jan 08
Supersedes data of 1990 Nov 26
IC15 Data Handbook
Philips
Semiconductors
Philips Semiconductors
Product specification
Buffers/Drivers
74F455,* 74F456
74F455 Octal Buffer/Driver with Parity, Inverting (3-State)
74F456 Octal Buffer/Driver with Parity, Non-Inverting (3-State)
FEATURES
DESCRIPTION
The 74F455 and 74F456 are octal buffers and line drivers with parity
generation/checking designed to be employed as memory address
drivers, clock drivers and bus-oriented transmitters/receivers. These
parts include parity generator/checker to improve PC board density.
• High impedance NPN base inputs for reduced loading
(40µA in High and Low states)
• 74F456 combines 74F244 and 74F280A functions in one package
• 74F456 is a center pin version of the 74F656A
• 74F456 Non-Inverting
TYPICAL
TYPICAL SUPPLY CURRENT
PROPAGATION
DELAY
TYPE
(TOTAL)
• 3-State outputs sink 64mA and source 15mA
• 24-pin plastic Slim DIP (300 mil) package
• Broadside pinout simplifies PC board layout
74F455
74F456
6.5ns
7.5ns
64mA
64mA
ORDERING INFORMATION
COMMERCIAL
RANGE
= 5V ±10%,
DESCRIPTION
PKG DWG #
V
CC
T
amb
= 0°C to +70°C
24-pin plastic Slim
DIP (300mil)
N74456N
SOT222-1
SOT137-1
24-pin plastic SOL
N74456D
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
PINS
DESCRIPTION
D0–D7
PI
Data inputs
Parity input
2.0/0.066
1.0/0.033
1.0/0.033
750/106.7
750/106.7
750/106.7
40µA/40µA
20µA/20µA
20µA/20µA
15mA/64mA
15mA/64mA
15mA/64mA
OE0, OE1
ΣE, ΣO
Output Enable inputs (active Low)
Parity outputs
Q0–Q7
Q0–Q7
Data outputs (75F455)
Data outputs (75F456)
NOTE: One (1.0) FAST Unit Load (U.L.) is defined as 20µA in the High state and 0.6mA in the Low state.
PIN CONFIGURATION – 74F455
PIN CONFIGURATION – 74F456
ΣO
ΣE
ΣO
ΣE
OE0
OE1
OE0
1
1
2
3
4
5
24
23
22
21
20
24
23
22
21
20
OE1
2
Q0
Q1
Q2
Q0
Q1
Q2
PI
D0
D1
PI
D0
D1
3
4
5
D2
D2
6
7
19 GND
18 GND
6
7
19 GND
18 GND
V
V
CC
CC
D3
D4
D5
D6
D7
Q3
17
D3
Q3
17
8
8
Q4
16
D4
D5
D6
D7
Q4
16
9
9
Q5
15
Q5
15
10
11
12
10
11
12
Q6
14
Q6
14
Q7
13
Q7
13
SF00958
SF00969
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
2
853–0371 20616
Philips Semiconductors
Product specification
Buffers/Drivers
74F455,* 74F456
LOGIC SYMBOL – 74F455
LOGIC SYMBOL – 74F456
4
5
6
8
9
10
11
12
4
5
6
8
9
10
11
12
D0
D1 D2 D3 D4 D5 D6 D7
D0
D1 D2 D3 D4 D5 D6 D7
3
1
2
PI
3
1
2
PI
ΣE
ΣO
ΣE
ΣO
23
24
23
24
OE0
OE0
OE1
OE1
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
22
21
20
17
16
15
14
13
22
21
20
17
16
15
14
13
V
GND
=
=
Pin 7
Pin 18, 19
V
GND
=
=
Pin 7
Pin 18, 19
CC
CC
SF00959
SF00960
LOGIC SYMBOL (IEEE/IEC) – 74F455
LOGIC SYMBOL (IEEE/IEC) – 74F456
2K
[EVEN]
2K
[EVEN]
23
23
3,5,6,7,8
3,5,6,7,8
9,10,11,12
9,10,11,12
24
24
3,5,6,7,8
9,10,11,12
[ODD]
3,5,6,7,8
9,10,11,12
[ODD]
3
3
P3
P3
1
1
w1
1
EN4
2
EN4
2
4
22
21
4
22
21
Z5
4
Z5
4
5
5
Z6
Z7
Z8
Z9
Z6
Z7
Z8
Z9
20
17
16
6
8
20
17
16
6
8
9
9
10
11
12
15
10
11
12
15
Z10
Z11
Z12
Z10
Z11
Z12
14
13
14
13
SF00961
SF00962
FUNCTION TABLE
FUNCTION TABLE for PARITY OUTPUTS
OUTPUTS
INPUTS
Number of inputs, High (PI, D0 - D7)
Even - 0, 2, 4, 6, 8
OUTPUTS
INPUTS
74F455
74F456
ΣE
H
L
ΣO
L
OE0
L
OE1
L
Dn
L
Qn
H
L
Qn
L
Odd - 1, 3, 5, 7, 9
H
L
L
H
X
H
Z
Any OEn = High
Z
Z
H
X
Z
H = High voltage level
L
Z
X
= Low voltage level
= High impedance “off” state
= Don’t care
X
H
X
Z
Z
H = High voltage level
L
Z
X
= Low voltage level
= High impedance “off” state
= Don’t care
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
3
Philips Semiconductors
Product specification
Buffers/Drivers
74F455,* 74F456
LOGIC DIAGRAM for 74F455
3
PI
23
ΣE
24
ΣO
4
22
Q0
D0
5
21
Q1
D1
6
20
Q2
D2
8
17
Q3
D3
9
16
Q4
D4
10
15
Q5
D5
11
14
Q6
D6
12
13
Q7
D7
1
OE0
2
OE1
V
=
=
Pin 7
Pin 18, 19
CC
GND
SF00963
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
4
Philips Semiconductors
Product specification
Buffers/Drivers
74F455,* 74F456
LOGIC DIAGRAM for 74F456
3
PI
23
ΣE
24
ΣO
4
22
Q0
D0
5
21
Q1
D1
6
20
Q2
D2
8
17
Q3
D3
9
16
Q4
D4
10
15
Q5
D5
11
14
Q6
D6
12
13
Q7
D7
1
OE0
2
OE1
V
=
=
Pin 7
Pin 18, 19
CC
GND
SF00964
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
5
Philips Semiconductors
Product specification
Buffers/Drivers
74F455,* 74F456
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
UNIT
V
V
Supply voltage
Input voltage
Input current
CC
IN
V
V
I
mA
V
IN
V
Voltage applied to output in High output state
Current applied to output in Low output state
Operating free-air temperature range
Storage temperature range
–0.5 to +V
128
OUT
OUT
CC
I
mA
°C
°C
T
amb
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
2.0
0.8
–18
–15
64
V
I
I
I
mA
mA
mA
°C
IK
High-level output current
Low-level output current
OH
OL
T
amb
Operating free-air temperature range
0
70
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
6
Philips Semiconductors
Product specification
Buffers/Drivers
74F455,* 74F456
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
1
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
2
MIN
2.4
2.7
2.0
TYP
MAX
±10%V
V
V
V
V
CC
V
V
V
= MIN,
= MAX,
= MIN
CC
IL
I
=–3mA
OH
±5%V
3.3
V
OH
High-level output voltage
CC
IH
I
=–15mA ±10%V
OH
I
CC
V
V
V
= MIN,
= MAX,
= MIN
±10%V
= MAX
0.55
0.55
CC
IL
CC
V
V
Low-level output voltage
OL
OL
±5%V
0.42
V
IH
CC
Input clamp voltage
V
V
= MIN, I = I
–0.73
–1.2
100
40
V
IK
CC
I
IK
I
Input current at maximum input voltage
= 0.0V, V = 7.0V
µA
µA
µA
µA
µA
I
CC
I
Dn
High-level input current
Pl, OEn
I
V
CC
= MAX, V = 2.7V
I
IH
20
Dn
Low-level input current
Pl, OEn
–40
–20
I
I
V
V
= MAX, V = 0.5V
I
IL
CC
Off-state output current
High-level voltage applied
= MAX, V = 2.7V
50
µA
µA
OZH
CC
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
80
mA
mA
mA
mA
OS
CC
I
50
78
63
CCH
I
110
90
I
Supply current (total)
V
CC
= MAX
CCL
CC
I
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. 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
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
Dn to Qn
2.0
1.0
4.5
2.0
6.5
4.0
2.0
1.0
7.5
4.5
PLH
PHL
74F455
74F456
Waveform 2
Waveform 1
ns
ns
t
t
Propagation delay
Dn to Qn
2.0
2.5
4.5
5.0
6.5
7.0
2.0
2.5
7.0
7.5
PLH
PHL
Propagation delay
Dn to SE, SO
t
t
5.5
5.5
10.0
11.0
13.0
14.5
5.5
5.5
14.0
16.5
PLH
PHL
Waveform 1, 2
ns
ns
ns
t
t
Output Enable time
to High or Low level
Waveform 3
Waveform 4
2.5
4.0
4.0
8.0
8.0
10.5
2.5
4.0
9.0
11.5
PZH
PZL
t
t
Output Disable time
from High or Low level
Waveform 3
Waveform 4
1.5
2.0
4.0
5.0
6.5
7.5
1.5
2.0
7.5
8.0
PHZ
PLZ
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
7
Philips Semiconductors
Product specification
Buffers/Drivers
74F455,* 74F456
AC WAVEFORMS
For all waveforms, V = 1.5V.
M
V
V
V
V
Dn
M
t
M
Dn
M
t
M
t
t
PHL
PLH
PLH
PHL
SE, SO, Qn
SE, SO, Qn
V
V
M
V
V
M
M
M
SF00965
SF00966
Waveform 1. Propagation Delay, Non-Inverting Outputs
Waveform 2. Propagation Delay, Inverting Outputs
V
t
V
M
M
OEn
V
V
M
OEn
M
t
PZL
PLZ
V
-0.3V
0V
OH
t
t
PHZ
PZH
V
SE, SO, Qn, Qn
M
SE, SO, Qn, Qn
V
M
V
+0.3V
OL
SF00968
SF00967
Waveform 3. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
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
L
M
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 3-State 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
SF00777
* Discontinued part. Please see the Discontinued Products List.
1999 Jan 08
8
Philips Semiconductors
Product specification
Buffers/drivers
74F455*, 74F456
DIP24: plastic dual in-line package; 24 leads (300 mil)
SOT222-1
* Discontinued part. Please see the Discontinued Product List.
9
1999 Jan 08
Philips Semiconductors
Product specification
Buffers/drivers
74F455*, 74F456
SO24: plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
* Discontinued part. Please see the Discontinued Product List.
10
1999 Jan 08
Philips Semiconductors
Product specification
Buffers/drivers
74F455*, 74F456
NOTES
* Discontinued part. Please see the Discontinued Product List.
1999 Jan 08
11
Philips Semiconductors
Product specification
Buffers/drivers
74F455*, 74F456
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
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
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.
[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
9397-750-05128
Document order number:
* Discontinued part. Please see the Discontinued Product List.
Philips
Semiconductors
相关型号:
74F500DCQR
ADC, Flash Method, 6-Bit, 1 Func, 1 Channel, Parallel, 6 Bits Access, Bipolar, CDIP24, CERAMIC, DIP-24
FAIRCHILD
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