933811700623 [NXP]
IC F/FAST SERIES, OCTAL 1-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SOL-20, Bus Driver/Transceiver;
| 型号： | 933811700623 |
| 厂家： | 
NXP |
| 描述： | IC F/FAST SERIES, OCTAL 1-BIT DRIVER, TRUE OUTPUT, PDSO20, PLASTIC, SOL-20, Bus Driver/Transceiver 驱动 光电二极管 输出元件 逻辑集成电路 |
| 文件： | 总8页 (文件大小：85K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F1244
Octal buffer (3-State)
Product specification
IC15 Data Handbook
1989 Apr 04
Philips
Semiconductors
Philips Semiconductors
Product specification
Octal buffer (3-State)
74F1244
FEATURES
PIN CONFIGURATION
• High impedance NPN base inputs for reduced loading
(20µA in High and Low states)
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
OEa
Ia0
V
CC
OEb
Ya0
• Low power, light loading
Yb0
Ia1
• Functional pin-for-pin equivalent of 74F244
• 1/30th the bus loading of 74F244
Ib0
Yb1
Ia2
Ya1
Ib1
• Provides ideal interface and increase fan-out of MOS
Yb2
Ia3
Ya2
Ib2
microprocessors
• Octal bus interface
Yb3
Ya3
Ib3
• 3-State buffer outputs sink 64mA and source 15mA
GND 10
SF00227
DESCRIPTION
The 74F1244 is an octal buffer that is ideal for driving bus lines or
buffer memory address registers. The outputs are capable of sinking
64mA and sourcing up to 15mA, producing very good capacitive
drive characteristics. The device features two Output Enables, OEa
and OEb, each controlling four of the 3-State outputs.
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY
CURRENT (TOTAL)
TYPE
74F1244
4.5ns
43mA
The 74F1244 is pin and functionally compatible with the 74F244.
The lower power and light bus loading features make it an ideal part
to interface directly with MOS microprocessors.
ORDERING INFORMATION
COMMERCIAL RANGE
= 5V ±10%,
DRAWING
NUMBER
V
DESCRIPTION
CC
T
amb
= 0°C to +70°C
20-pin plastic DIP
20-pin plastic SOL
N74F1244N
N74F1244D
SOT146-1
SOT163-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
74F (U.L.)
LOAD VALUE
PINS
DESCRIPTION
HIGH/LOW
1.0/0.033
1.0/0.033
750/106.7
HIGH/LOW
20µA/20µA
20µA/20µA
15mA/64mA
Ian, Ibn
OEa, OEb
Yan, Ybn
Data inputs
Output enable inputs (active Low)
Data outputs
NOTE: One (1.0) FAST unit load is defined as: 20µA in the high state and 0.6mA in the low state.
LOGIC SYMBOL
IEC/IEEE SYMBOL
1
EN1
EN2
2
4
6
8
17 15 13 11
19
2
4
6
18
16
14
12
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
1
1
OEa
OEb
19
8
17
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
3
5
2
15
7
9
13
11
18
16 14 12
3
5
7
9
V
= Pin 20
CC
GND = Pin 10
SF01366
SF00228
2
1989 Apr 04
853–0041 96221
Philips Semiconductors
Product specification
Octal buffer (3-State)
74F1244
LOGIC DIAGRAM
FUNCTION TABLE
INPUTS
OUTPUTS
17
15
3
5
2
4
18
16
Ib0
Ib1
Ib2
Ib3
OEb
Yb0
Yb1
Yb2
Yb3
Ia0
Ia1
Ya0
Ya1
Ya2
Ya3
OEa
L
Ia
L
OEb
L
Ib
L
Ya
L
Yb
L
L
H
X
L
H
X
H
Z
H
Z
13
7
9
6
8
14
12
H
H
Ia2
H
L
X
Z
=
=
=
=
High voltage level
Low voltage level
Don’t care
11
19
Ia3
High impedance “off” state
1
OEa
V
= Pin 20
CC
GND = Pin 10
SF00230
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
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
3
1989 Apr 04
Philips Semiconductors
Product specification
Octal buffer (3-State)
74F1244
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
1
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
MAX
2
MIN
2.5
2.7
2.0
2.0
TYP
±10% V
V
V
V
V
CC
I
I
= –3mA
OH
V
V
V
= MIN,
= MAX,
= MIN
CC
IL
±5% V
3.4
CC
V
OH
High-level output voltage
±10% V
±5% V
CC
IH
= –15mA
OH
CC
V
V
V
= MIN,
= MAX,
= MIN
I
I
= 48mA
= 64mA
±10% V
0.38
0.42
0.55
V
CC
IL
OL
CC
V
Low-level output voltage
OL
±5% V
0.55
–1.2
100
20
V
OL
IK
CC
IH
V
IK
Input clamp voltage
V
CC
V
CC
V
CC
V
CC
= MIN, I = I
–0.73
V
I
I
I
I
Input current at maximum input voltage
High-level input current
= 0.0V, V = 7.0V
µA
µA
µA
I
I
= MAX, V = 2.7V
IH
IL
I
Low-level input current
= MAX, V = 0.5V
–20
I
Off-state output current,
High-level voltage applied
I
V
= 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
40
mA
mA
mA
mA
OS
CC
I
I
I
30
57
43
CCH
CCL
CCZ
I
Supply current (total)
V
CC
= MAX
75
CC
58
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
T
V
= +25°C
= +5.0V
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
amb
CC
TEST
CONDITION
SYMBOL
PARAMETER
UNIT
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
2.5
2.0
4.0
5.0
5.5
7.0
2.5
2.0
6.0
7.5
ns
ns
PLH
PHL
Waveform 1
t
t
Output Enable time
to High or Low level
Waveform 2
Waveform 3
3.0
3.0
6.0
6.5
7.5
8.0
3.0
3.0
8.5
8.5
ns
ns
PZH
PZL
t
t
Output Disable time
to High or Low level
Waveform 2
Waveform 3
2.0
2.0
4.0
4.0
5.5
5.5
2.0
2.0
6.0
6.0
ns
ns
PHZ
PLZ
4
1989 Apr 04
Philips Semiconductors
Product specification
Octal buffer (3-State)
74F1244
AC WAVEFORMS
For all waveforms, V = 1.5V.
M
Ian, Ibn
OEn
Yn
V
V
M
M
V
M
V
M
t
t
PLZ
PZL
t
t
PHL
PLH
3.5V
V
M
Yn
V
V
M
M
V
+0.3V
OL
SF00234
SF00231
Waveform 3. 3-State Output enable Time to Low Level and
Output Disable Time from Low Level
Waveform 1. For Non-Inverting Outputs
V
V
M
M
t
OEn
t
PZH
PHZ
V
–0.3V
OH
V
Yn
M
0V
SF00233
Waveform 2. 3-State Output Enable Time to High Level and
Output Disable Time from High 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 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
5
1989 Apr 04
Philips Semiconductors
Product specification
Octal buffer (3-State)
74F1244
DIP20: plastic dual in-line package; 20 leads (300 mil)
SOT146-1
6
1989 Apr 04
Philips Semiconductors
Product specification
Octal buffer (3-State)
74F1244
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
7
1989 Apr 04
Philips Semiconductors
Product specification
Octal buffer (3-State)
74F1244
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
Date of release: 05-96
Document order number:
9397 750-05192
Philips
Semiconductors
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