ChipFind - документация

Электронный компонент: N74F2240N

Скачать:  PDF   ZIP

Document Outline

Philips
Semiconductors
74F2240
Octal inverter buffer with 30
equivalent
output termination (3-State)
74F2241
Octal buffer with 30
equivalent output
termination (3-State)
Product specification
IC15 Data Handbook
1990 Dec 13
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74F2240, 74F2241
Octal buffers
2
December 13, 1990
853-1524 01255
FEATURES
Octal bus interface
30
output termination ideal for driving DRAM
15mA source current
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
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
10%,
T
amb
= 0
C to +70
C
PKG DWG #
20-pin plastic DIP
N74F2240N, N74F2241N
SOT146-1
20-pin plastic SOL
N74F2240D, N74F2241D
SOT163-1
INPUT AND OUTPUT LOADING
AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.)
HIGH/LOW
LOAD
VALUE
HIGH/LOW
Ian, Ibn
Data inputs
1.0/0.33
20
A/0.2mA
OEa, OEb
Output enable inputs
(active Low)
1.0/0.33
20
A/0.2mA
OEb
Output enable input
(74F2241)
1.0/0.33
20
A/0.2mA
Yan, Ybn
Data outputs (74F2241)
750/8.33
15mA/5mA
Yan, Ybn
Data outputs (74F2240)
750/8.33
15mA/5mA
NOTE: One (1.0) FAST unit load is defined as: 20
A in the High
state and 0.6mA in the Low state.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 VCC
OEa
Ia0
Yb0
Ia1
Yb1
Ia2
Yb2
Ia3
Yb3
GND
OEb
Ya0
Ib0
Ya1
Ib1
Ya2
Ib2
Ya3
Ib3
74F2240
SF00561
LOGIC SYMBOL
OEa
OEb
1
19
V
CC
= Pin 20
GND = Pin 10
2
4
6
8
17 15 13 11
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
18 16 14 12
3
5
7
9
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
74F2240
SF00562
IEC/IEEE SYMBOL
2
4
6
8
17
15
13
11
1
19
2D
18
16
14
12
3
5
7
9
EN1
EN2
1
2
74F2240
SF00563
Philips Semiconductors
Product specification
74F2240, 74F2241
Octal buffers
December 13, 1990
3
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 V
CC
OEa
Ia0
Yb0
Ia1
Yb1
Ia2
Yb2
Ia3
Yb3
GND
OEb
Ya0
Ib0
Ya1
Ib1
Ya2
Ib2
Ya3
Ib3
74F2241
SF00564
LOGIC SYMBOL
OEa
OEb
1
19
V
CC
= Pin 20
GND = Pin 10
2
4
6
8
17 15 13 11
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
18 16 14 12
3
5
7
9
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
74F2241
SF00565
IEC/IEEE SYMBOL
2
4
6
8
17
15
13
11
1
19
2D
18
16
14
12
3
5
7
9
EN1
EN2
1
2
74F2241
SF00566
LOGIC DIAGRAM FOR 74F2240
V
CC
= Pin 20
GND = Pin 10
2
4
6
8
1
18
15
14
12
Ia0
Ia1
Ia2
Ia3
OEa
Ya0
Ya1
Ya2
Ya3
17
15
13
11
10
2
5
7
9
Ib0
Ib1
Ib2
Ib3
OEb
Yb0
Yb1
Yb2
Yb3
SF00567
LOGIC DIAGRAM FOR 74F2241
V
CC
= Pin 20
GND = Pin 10
2
4
6
8
1
18
15
14
12
Ia0
Ia1
Ia2
Ia3
OEa
Ya0
Ya1
Ya2
Ya3
17
15
13
11
10
2
5
7
9
Ib0
Ib1
Ib2
Ib
OEb
Yb0
Yb1
Yb2
Yb3
SF00568
FUNCTION TABLE FOR 74F2240
INPUTS
OUTPUTS
OEa
Ia
OEb
Ib
Ya
Yb
L
L
L
L
H
H
L
H
L
H
L
L
H
X
H
X
Z
Z
Notes to function table for 74F2240
H = High voltage level
L
= Low voltage level
X = Don't care
Z = High impedance "off" state
FUNCTION TABLE FOR 74F2241
INPUTS
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
Philips Semiconductors
Product specification
74F2240, 74F2241
Octal buffers
December 13, 1990
4
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
V
CC
Supply voltage
0.5 to +7.0
V
V
IN
Input voltage
0.5 to +7.0
V
I
IN
Input current
30 to +5
mA
V
OUT
Voltage applied to output in high output state
0.5 to V
CC
V
I
OUT
Current applied to output in low output state
10
mA
T
amb
Operating free air temperature range
0 to +70
C
T
stg
Storage temperature range
65 to +150
C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
V
CC
Supply voltage
4.5
5.0
5.5
V
V
IH
Highlevel input voltage
2.0
V
V
IL
Lowlevel input voltage
0.8
V
I
Ik
Input clamp current
18
mA
I
OH
Highlevel output current
15
mA
I
OL
Lowlevel output current
5
mA
T
amb
Operating free air temperature range
0
+70
C
Philips Semiconductors
Product specification
74F2240, 74F2241
Octal buffers
December 13, 1990
5
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
SYMBOL
PARAMETER
TEST
LIMITS
UNIT
CONDITIONS
1
MIN
TYP
2
MAX
V
CC
= MIN,
I
OH
= 3mA
10%V
C
C
2.4
V
V
OH
High-level output voltage
V
IL
= MAX,
5%V
CC
2.7
3.4
V
V
IH
= MIN
I
OH
=
15mA
10%V
C
C
2.0
V
5%V
CC
2.0
V
V
OL
Low-level output voltage
V
CC
= MIN,
V
IL
= MAX,
I
OL
= MAX
10%V
C
C
0.50
V
V
IH
= MIN,
5%V
CC
0.42
0.50
V
V
IK
Input clamp voltage
V
CC
= MIN, I
I
= I
IK
0.73
-1.2
V
I
I
Input current at maximum input voltage
V
CC
= MAX, V
I
= 7.0V
100
A
I
IH
Highlevel input current
V
CC
= MAX, V
I
= 2.7V
20
A
I
IL
Lowlevel input current
V
CC
= MAX, V
I
= 0.5V
0.2
mA
I
OZH
Offstate output current,
highlevel voltage applied
V
CC
= MAX, V
O
= 2.7V
50
A
I
OZL
Offstate output current,
lowlevel voltage applied
V
CC
= MAX, V
O
= 0.5V
50
A
I
OS
Shortcircuit output current
3
V
CC
= MAX
-60
-150
mA
I
CCH
25
35
mA
74F2240
I
CCL
V
CC
= MAX
53
75
mA
I
CC
Supply current (total)
I
CCZ
35
45
mA
I
CCH
19
30
mA
74F2241
I
CCL
V
CC
= MAX
45
65
mA
I
CCZ
27
40
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 V
CC
= 5V, T
amb
= 25
C.
3. Not more than one output should be shorted at a time. For testing I
OS
, 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, I
OS
tests should be performed last.
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25
C
T
amb
= 0
C to +70
C
SYMBOL
PARAMETER
TEST
V
CC
= +5.0V
V
CC
= +5.0V
10%
UNIT
CONDITION
C
L
= 50pF, R
L
= 500
C
L
= 50pF, R
L
= 500
MIN
TYP
MAX
MIN
MAX
t
PLH
t
PHL
Propagation delay
Ian, Ibn to Yn
Waveform 1
3.0
2.0
5.0
3.5
7.0
5.5
2.5
2.0
8.0
6.0
ns
t
PZH
t
PZL
Output enable time
to high or low level
74F2240
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
t
PHZ
t
PLZ
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
t
PLH
t
PHL
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
t
PZH
t
PZL
Output enable time
to high or low level
74F2241
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
t
PHZ
t
PLZ
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
Philips Semiconductors
Product specification
74F2240, 74F2241
Octal buffers
December 13, 1990
6
AC WAVEFORMS
Ian, Ibn
V
M
V
M
V
M
V
M
t
PLH
t
PHL
Yn
SF00328
Waveform 1. Propagation delay for inverting outputs
VM
VM
VM
tPHZ
tPZH
VOH -0.3V
0V
Yn, Yn
OEn
OEb
SF00330
Waveform 3. 3-state output enable time to high level and output
disable time from high level
Ian, Ibn
V
M
V
M
V
M
V
M
t
PHL
t
PLH
Yn
SF00329
Waveform 2. Propagation delay for noninverting outputs
VM
VM
VM
tPLZ
tPZL
VOL +0.3V
3.5V
OEn
OEb
Yn, Yn
SF00331
Waveform 4. 3-state output enable time to low level and output
disable time from low level
NOTES:
For all waveforms, V
M
= 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
TEST CIRCUIT AND WAVEFORMS
tw
90%
VM
10%
90%
VM
10%
90%
VM
10%
90%
VM
10%
NEGATIVE
PULSE
POSITIVE
PULSE
tw
AMP (V)
0V
0V
tTHL (tf
)
INPUT PULSE REQUIREMENTS
rep. rate
t
w
t
TLH
t
THL
1MHz
500ns
2.5ns
2.5ns
Input Pulse Definition
VCC
family
74F
D.U.T.
PULSE
GENERATOR
RL
CL
RT
VIN
VOUT
Test Circuit for Open Collector Outputs
DEFINITIONS:
R
L
= Load resistor;
see AC electrical characteristics for value.
C
L
= Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
R
T
= Termination resistance should be equal to Z
OUT
of
pulse generators.
tTHL (tf
)
tTLH (tr
)
tTLH (tr
)
AMP (V)
amplitude
3.0V
1.5V
V
M
RL
7.0V
SF00128
TEST
SWITCH
t
PLZ
closed
t
PZL
closed
All other
open
SWITCH POSITION
Philips Semiconductors
Product specification
74F2240/74F2241
Octal buffers
1990 Dec 13
7
DIP20:
plastic dual in-line package; 20 leads (300 mil)
SOT146-1
Philips Semiconductors
Product specification
74F2240/74F2241
Octal buffers
1990 Dec 13
8
SO20:
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
Philips Semiconductors
Product specification
74F2240/74F2241
Octal buffers
1990 Dec 13
9
NOTES
Philips Semiconductors
Product specification
74F2240/74F2241
Octal buffers
yyyy mmm dd
10
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.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 940883409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
print code
Date of release: 10-98
Document order number:
9397-750-05197
Philips
Semiconductors
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
[1]
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
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.
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.
Data sheet status
[1]
Please consult the most recently issued datasheet before initiating or completing a design.