PHILIPS N74F2240D

INTEGRATED CIRCUITS
74F2240
Octal inverter buffer with 30Ω equivalent
output termination (3-State)
74F2241
Octal buffer with 30Ω equivalent output
termination (3-State)
Product specification
IC15 Data Handbook
1990 Dec 13
Philips Semiconductors
Product specification
Octal buffers
74F2240, 74F2241
FEATURES
PIN CONFIGURATION
• Octal bus interface
• 30Ω output termination ideal for driving DRAM
• 15mA source current
74F2240
DESCRIPTION
The 74F2240 and 74F2241 are octal buffers that are ideal for
driving dynamic DRAM with impedance matching. The outputs are
all capable of sinking 5mA and sourcing up to 15mA. The device
features two output enables, each controlling four of the 3-state
outputs.
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL
SUPPLY CURRENT
(TOTAL)
74F2240
4.3ns
37mA
74F2241
4.5ns
30mA
OEa 1
20 VCC
Ia0 2
19 OEb
Yb0 3
18 Ya0
Ia1 4
17 Ib0
Yb1 5
16 Ya1
Ia2 6
15 Ib1
Yb2 7
14 Ya2
Ia3 8
13 Ib2
Yb3 9
12 Ya3
GND 10
11 Ib3
SF00561
LOGIC SYMBOL
74F2240
2
ORDERING INFORMATION
4
6
8
17 15 13 11
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
PKG DWG #
20-pin plastic DIP
N74F2240N, N74F2241N
SOT146-1
20-pin plastic SOL
N74F2240D, N74F2241D
SOT163-1
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
1
19
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
18 16 14 12
INPUT AND OUTPUT LOADING
AND FAN-OUT TABLE
LOAD
VALUE
HIGH/LOW
Data inputs
1.0/0.33
20µA/0.2mA
OEa, OEb
Output enable inputs
(active Low)
1.0/0.33
OEb
Output enable input
(74F2241)
1.0/0.33
Data outputs (74F2241)
750/8.33
Ian, Ibn
Yan, Ybn
DESCRIPTION
3
5
VCC = Pin 20
GND = Pin 10
74F (U.L.)
HIGH/LOW
PINS
OEa
OEb
7
9
SF00562
IEC/IEEE SYMBOL
74F2240
20µA/0.2mA
1
19
EN1
EN2
20µA/0.2mA
15mA/5mA
2
Yan, Ybn Data outputs (74F2240)
750/8.33
15mA/5mA
NOTE: One (1.0) FAST unit load is defined as: 20µA in the High
state and 0.6mA in the Low state.
4
16
6
14
2D
1
8
17
18
12
2
3
15
5
13
7
11
9
SF00563
December 13, 1990
2
853-1524 01255
Philips Semiconductors
Product specification
Octal buffers
74F2240, 74F2241
PIN CONFIGURATION
LOGIC DIAGRAM FOR 74F2240
74F2241
OEa 1
20 VCC
Ia0 2
19 OEb
Yb0 3
18 Ya0
Ia1 4
17 Ib0
Yb1 5
16 Ya1
Ia2 6
15 Ib1
Yb2 7
14 Ya2
Ia3 8
13 Ib2
Yb3 9
12 Ya3
GND 10
11 Ib3
Ia0
Ia1
Ia2
Ia3
OEa
2
18
4
15
6
14
8
12
Ya0
Ib0
Ya1
Ib1
Ya2
Ib2
Ya3
Ib3
1
OEb
17
2
15
5
13
7
11
9
Yb0
Yb1
Yb2
Yb3
10
VCC = Pin 20
GND = Pin 10
SF00567
SF00564
LOGIC DIAGRAM FOR 74F2241
LOGIC SYMBOL
Ia0
74F2241
2
4
6
8
17 15 13 11
Ia1
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
1
19
Ia2
OEa
OEb
Ia3
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
OEa
18 16 14 12
3
5
VCC = Pin 20
GND = Pin 10
7
2
18
4
15
6
14
8
12
Ya0
Ib0
Ya1
Ib1
Ya2
Ib2
Ya3
Ib
1
OEb
17
2
15
5
13
7
11
9
Yb1
Yb2
Yb3
10
VCC = Pin 20
GND = Pin 10
9
Yb0
SF00568
SF00565
FUNCTION TABLE FOR 74F2240
INPUTS
IEC/IEEE SYMBOL
OEa
OUTPUTS
Ia
OEb
Ib
Ya
Yb
L
L
L
H
L
L
H
H
L
H
L
L
H
X
H
X
Z
Z
74F2241
1
19
EN1
EN2
2
2D
1
18
4
16
6
14
8
17
Notes to function table for 74F2240
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance ”off” state
12
2
3
15
5
13
7
11
9
FUNCTION TABLE FOR 74F2241
INPUTS
SF00566
OUTPUTS
OEa
Ia
OEb
Ib
Ya
Yb
L
L
H
L
L
L
L
H
H
H
H
H
H
X
L
X
Z
Z
Notes to function table for 74F2241
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance ”off” state
December 13, 1990
3
Philips Semiconductors
Product specification
Octal buffers
74F2240, 74F2241
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
UNIT
VCC
Supply voltage
–0.5 to +7.0
V
VIN
Input voltage
–0.5 to +7.0
V
IIN
Input current
–30 to +5
mA
VOUT
Voltage applied to output in high output state
–0.5 to VCC
V
IOUT
Current applied to output in low output state
10
mA
Tamb
Operating free air temperature range
0 to +70
°C
Tstg
Storage temperature range
–65 to +150
°C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
VCC
Supply voltage
4.5
5.0
5.5
VIH
High–level input voltage
2.0
VIL
Low–level input voltage
0.8
V
IIk
Input clamp current
–18
mA
IOH
High–level output current
–15
mA
IOL
Low–level output current
5
mA
+70
°C
Tamb
Operating free air temperature range
December 13, 1990
0
4
V
V
Philips Semiconductors
Product specification
Octal buffers
74F2240, 74F2241
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST
LIMITS
CONDITIONS1
VCC = MIN,
VOH
VOL
High-level output voltage
IOH = –3mA
TYP2
UNIT
MAX
2.4
V
VIL = MAX,
±5%VCC
2.7
VIH = MIN
±10%VC
2.0
V
2.0
V
IOH =
–15mA
C
±5%VCC
IOL = MAX
3.4
±10%VC
V
0.50
V
0.42
0.50
V
–0.73
-1.2
V
100
µA
C
±5%VCC
VIH = MIN,
VIK
±10%VC
C
VCC = MIN,
VIL = MAX,
Low-level output voltage
MIN
Input clamp voltage
VCC = MIN, II = IIK
II
Input current at maximum input voltage
VCC = MAX, VI = 7.0V
IIH
High–level input current
VCC = MAX, VI = 2.7V
20
µA
IIL
Low–level input current
VCC = MAX, VI = 0.5V
–0.2
mA
IOZH
Off–state output current,
high–level voltage applied
VCC = MAX, VO = 2.7V
50
µA
IOZL
Off–state output current,
low–level voltage applied
VCC = MAX, VO = 0.5V
–50
µA
IOS
Short–circuit output current3
VCC = MAX
-60
-150
mA
25
35
mA
53
75
mA
ICCZ
35
45
mA
ICCH
19
30
mA
45
65
mA
27
40
ICCH
74F2240
ICC
ICCL
Supply current (total)
74F2241
ICCL
VCC = MAX
VCC = MAX
ICCZ
mA
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 VCC = 5V, Tamb = 25°C.
3. Not more than one output should be shorted at a time. For testing IOS, the use of high-speed test apparatus and/or sample-and-hold
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, IOS tests should be performed last.
AC ELECTRICAL CHARACTERISTICS
LIMITS
Tamb = +25°C
SYMBOL
PARAMETER
Tamb = 0°C to +70°C
VCC = +5.0V ± 10%
TEST
VCC = +5.0V
CONDITION
CL = 50pF, RL = 500Ω
UNIT
CL = 50pF, RL = 500Ω
MIN
MAX
MIN
TYP
MAX
Waveform 1
3.0
2.0
5.0
3.5
7.0
5.5
2.5
2.0
8.0
6.0
ns
Waveform 3
Waveform 4
3.0
3.5
4.5
5.0
7.0
8.0
2.5
3.0
8.0
9.0
ns
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
1.0
3.5
2.5
6.5
5.5
1.5
1.0
7.0
5.5
ns
tPLH
tPHL
Propagation delay
Ian, Ibn to Yn
Waveform 2
3.0
2.5
4.5
4.5
7.0
6.5
2.5
2.5
8.0
7.5
ns
tPZH
tPZL
Output enable time
to high or low level
Waveform 3
Waveform 4
3.0
3.5
5.0
5.5
7.0
7.5
2.0
3.0
8.0
8.5
ns
tPHZ
tPLZ
Output disable time
from high or low level
Waveform 3
Waveform 4
2.0
1.5
4.0
3.5
6.0
6.0
1.5
1.0
7.0
6.5
ns
tPLH
tPHL
Propagation delay
Ian, Ibn to Yn
tPZH
tPZL
Output enable time
to high or low level
tPHZ
tPLZ
December 13, 1990
74F2240
74F2241
5
Philips Semiconductors
Product specification
Octal buffers
74F2240, 74F2241
AC WAVEFORMS
Ian, Ibn
VM
Ian, Ibn
VM
tPHL
VM
tPHL
tPLH
tPLH
VM
Yn
VM
Yn
VM
VM
VM
SF00328
SF00329
Waveform 1. Propagation delay for inverting outputs
Waveform 2. Propagation delay for non–inverting outputs
OEn
OEn
VM
VM
VM
OEb
VM
OEb
tPZH
VOH -0.3V
tPHZ
Yn, Yn
tPZL
VM
tPLZ
3.5V
VM
Yn, Yn
0V
VOL +0.3V
SF00330
SF00331
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
NOTES:
For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
TEST CIRCUIT AND WAVEFORMS
VCC
7.0V
VIN
RL
VOUT
PULSE
GENERATOR
tw
90%
NEGATIVE
PULSE
VM
CL
AMP (V)
VM
10%
D.U.T.
RT
90%
10%
tTHL (tf )
tTLH (tr )
tTLH (tr )
tTHL (tf )
0V
RL
AMP (V)
90%
90%
Test Circuit for Open Collector Outputs
POSITIVE
PULSE
VM
VM
10%
TEST
tPLZ
tPZL
All other
SWITCH
closed
closed
open
DEFINITIONS:
RL = Load resistor;
see AC electrical characteristics for value.
CL = Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
10%
tw
SWITCH POSITION
0V
Input Pulse Definition
INPUT PULSE REQUIREMENTS
family
amplitude VM
74F
3.0V
1.5V
rep. rate
tw
tTLH
tTHL
1MHz
500ns
2.5ns
2.5ns
SF00128
December 13, 1990
6
Philips Semiconductors
Product specification
Octal buffers
74F2240/74F2241
DIP20: plastic dual in-line package; 20 leads (300 mil)
1990 Dec 13
7
SOT146-1
Philips Semiconductors
Product specification
Octal buffers
74F2240/74F2241
SO20: plastic small outline package; 20 leads; body width 7.5 mm
1990 Dec 13
8
SOT163-1
Philips Semiconductors
Product specification
Octal buffers
74F2240/74F2241
NOTES
1990 Dec 13
9
Philips Semiconductors
Product specification
Octal buffers
74F2240/74F2241
Data sheet status
Data sheet
status
Product
status
Definition [1]
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.
Right to make changes — Philips Semiconductors reserves 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.
 Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
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Document order number:
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Date of release: 10-98
9397-750-05197