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Datasheet: I74F656AD (Philips Semiconductors)

Octal buffer/driver with parity, non-inverting 3-State

 

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Philips Semiconductors
Philips
Semiconductors
74F655A*
Octal buffer/driver with parity, inverting
(3-State)
74F656A
Octal buffer/driver with parity,
non-inverting (3-State)
Product specification
IC15 Data Handbook
1991 Jul 17
INTEGRATED CIRCUITS
* Discontinued part. Please see the Discontinued Product List.
Philips Semiconductors
Product specification
74F655A*
74F656A
Buffers/drivers
74F655A Octal buffer/driver with parity, inverting (3-State)
74F656A Octal buffer/driver with parity, non-inverting (3-State)
2
1991 Jul 17
853-0383 03305
* Discontinued part. Please see the Discontinued Products List.
FEATURES
Significantly improved AC performance over 74F655 and 74F656
High impedance NPN base input for reduced loading
(40
A in High and Low states)
Ideal in applications where high output drive and light bus loading
are required (I
IL
is 40
A vs. FAST std of 600
A)
74F655A combines 74F240 and 74F280A functions in one
package
74F656A combines 74F244 and 74F280A functions in one
package
74F655A Inverting
74F656A Non-inverting
3-State outputs sink 64mA and source 15mA
24-pin plastic Slim DIP (300mil) package
Inputs on one side and outputs on the other side simplifies PC
board layout
Combined functions reduce part count and enhance system
performance
Industrial temperature range available (40
C to +85
C)
DESCRIPTION
The 74F655A and 74F656A 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.
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY CURRENT
(TOTAL)
74F655A
6.5ns
64mA
74F656A
6.5ns
64mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
10%,
T
amb
= 0
C to +70
C
INDUSTRIAL RANGE
V
CC
= 5V
10%,
T
amb
= 40
C to +85
C
PKG DWG #
24-pin Plastic Slim
DIP (300mil)
N74F656AN
I74F656AN
SOT222-1
24-pin Plastic SOL
N74F656AD
I74F656AD
SOT137-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
D0D7
Data inputs
2.0/0.066
40
A/40
A
PI
Parity input
1.0/0.033
20
A/20
A
OE0, OE1, OE2
Output Enable Inputs (active Low)
1.0/0.033
20
A/20
A
E,
O
Parity outputs
750/106.7
15mA/64mA
Q0Q7
Data outputs (74F655A)
750/106.7
15mA/64mA
Q0Q7
Data outputs (74F656A)
750/106.7
15mA/64mA
NOTE: One (1.0) FAST Unit Load (U.L.) is defined as: 20
A in the High state and 0.6mA in the Low state.
Philips Semiconductors
Product specification
74F655A*
74F656A
Buffers/drivers
1991 Jul 17
3
* Discontinued part. Please see the Discontinued Products List.
PIN CONFIGURATION 74F655A
24
23
22
21
20
19
18
17
16
15
14
13
12
10
11
9
8
7
6
5
4
3
2
1
OE0
OE1
PI
D0
D1
D2
D3
D4
D5
D6
D7
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
E
O
VCC
GND
OE2
SF01168
PIN CONFIGURATION 74F656A
24
23
22
21
20
19
18
17
16
15
14
13
12
10
11
9
8
7
6
5
4
3
2
1
OE0
OE1
PI
D0
D1
D2
D3
D4
D5
D6
D7
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
E
O
VCC
GND
OE2
SF01169
LOGIC SYMBOL 74F655A
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE0
OE1
PI
E
O
4
5
6
7
8
9
10
11
21
22
1
2
3
20
19
18
17
16
15
14
13
OE2
23
V
CC
=Pin 24
GND=Pin 12
SF01170
LOGIC SYMBOL 74F656A
D0
D1
D2
D3
D4
D5
D6
D7
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
OE0
OE1
PI
E
O
4
5
6
7
8
9
10
11
21
22
1
2
3
20
19
18
17
16
15
14
13
OE2
23
V
CC
=Pin 24
GND=Pin 12
SF01171
IEEE/IEC SYMBOL 74F655A
SF01172
3
19
18
17
16
15
14
6
7
4
8
9
10
1
23
20
5
4
13
11
Z5
Z6
Z7
Z8
Z9
Z10
Z11
Z12
2
EN4
1
P3
2K
3,5,6,7,8
9,10,11,12
3,5,6,7,8
9,10,11,12
[EVEN]
[ODD]
22
21
LOGIC SYMBOL (IEEE/IEC) 74F656A
SF01173
3
19
18
17
16
15
14
6
7
4
8
9
10
1
23
20
5
4
13
11
Z5
Z6
Z7
Z8
Z9
Z10
Z11
Z12
2
EN4
1
P3
2K
3,5,6,7,8
9,10,11,12
3,5,6,7,8
9,10,11,12
[EVEN]
[ODD]
22
21
Philips Semiconductors
Product specification
74F655A*
74F656A
Buffers/drivers
1991 Jul 17
4
* Discontinued part. Please see the Discontinued Products List.
LOGIC DIAGRAM 74F655A
3
4
5
6
7
8
9
10
11
2
23
20
19
18
17
16
15
14
13
21
22
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
E
O
D0
D1
D2
D3
D4
D5
D6
D7
OE1
OE2
1
OE0
PI
SF01174
V
CC
= Pin 24
GND = Pin 12
Philips Semiconductors
Product specification
74F655A*
74F656A
Buffers/drivers
1991 Jul 17
5
* Discontinued part. Please see the Discontinued Products List.
LOGIC DIAGRAM 74F656A
3
4
5
6
7
8
9
10
11
23
2
20
19
18
17
16
15
14
13
21
22
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
E
O
D0
D1
D2
D3
D4
D5
D6
D7
OE1
OE2
1
OE0
PI
SF01175
V
CC
= Pin 24
GND = Pin 12
Philips Semiconductors
Product specification
74F655A*
74F656A
Buffers/drivers
1991 Jul 17
6
* Discontinued part. Please see the Discontinued Products List.
FUNCTION TABLE
INPUTS
OUTPUTS
OE0
OE1
OE2
Dn
74F655A
74F656A
OE0
OE1
OE2
Dn
Qn
Qn
L
L
L
L
H
L
L
L
L
H
L
H
H
X
X
X
Z
Z
X
H
X
X
Z
Z
X
X
H
X
Z
Z
H = High voltage level
L
= Low voltage level
X = Don't care
Z = High impedance "off" state
FUNCTION TABLE for PARITY OUTPUTS
INPUTS
PARITY
OUTPUTS
Number of inputs, High (PI, D0D7)
E
0
Even - 0, 2, 4, 6, 8
H
L
Odd - 1, 3, 5, 7, 9
L
H
Any OEn = High
Z
Z
H = High voltage level
L
= Low voltage level
Z = High impedance "off" state
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
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
128
mA
T
Operating free air temperature range
Commercial range
0 to +70
C
T
amb
Operating free-air temperature range
Industrial range
40 to +85
C
T
stg
Storage temperature range
65 to +150
C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
SYMBOL
PARAMETER
MIN
NOM
MAX
UNIT
V
CC
Supply voltage
4.5
5.0
5.5
V
V
IH
High-level input voltage
2.0
V
V
IL
Low-level input voltage
0.8
V
I
IK
Input clamp current
18
mA
I
OH
High-level output current
15
mA
I
OL
Low-level output current
64
mA
T
Operating free air temperature range
Commercial range
0
70
C
T
amb
Operating free-air temperature range
Industrial range
40
85
C
Philips Semiconductors
Product specification
74F655A*
74F656A
Buffers/drivers
1991 Jul 17
7
* Discontinued part. Please see the Discontinued Products List.
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
NO TAG
LIMITS
UNIT
SYMBOL
PARAMETER
TEST CONDITIONS
NO TAG
MIN
TYP
NO TAG
MAX
V
CC
= MIN
I
O
= 3mA
10%V
CC
2.4
V
V
OH
High-level output voltage
V
CC
= MIN,
V
IL
= MAX
V
MIN
I
OH
= 3mA
5%V
CC
2.7
3.3
V
V
IH
= MIN
I
OH
= 15mA
10%V
CC
2.0
V
V
O
Low level output voltage
V
CC
= MIN,
V
MAX
I
O
= 64mA
10%V
CC
0.55
V
V
OL
Low-level output voltage
V
IL
= MAX
V
IH
= MIN
I
OL
= 64mA
5%V
CC
0.42
0.55
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
= 0.0, V
I
= 7.0V
100
A
Commercial
Dn
40
A
I
High-level
Commercial
range
Pl, OEn
V
CC
= MAX V = 2 7V
20
A
I
IH
High level
input current
Industrial
Dn
V
CC
= MAX, V
I
= 2.7V
80
A
Industrial
range
Pl, OEn
40
A
I
Low level input current
Dn
V
CC
= MAX V = 0 5V
40
A
I
IL
Low-level input current
Pl, OEn
V
CC
= MAX, V
I
= 0.5V
20
A
I
OZH
Off-state current
High-level voltage applied
V
CC
= MAX, V
O
= 2.7V
50
A
I
OZL
Off-state current
Low-level voltage applied
V
CC
= MAX, V
O
= 0.5V
50
A
I
OS
Short-circuit output current
3
V
CC
= MAX
100
225
mA
I
CCH
50
80
mA
I
CC
Supply current
(total)
I
CCL
V
CC
= MAX
78
110
mA
(total)
I
CCZ
83
90
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
TEST
T
amb
= +25
C,
V
= +5 0V
T
amb
= 0
C to +70
C
V
= +5 0V
10%
T
amb
= 40
C to +85
C
V
= +5 0V
10%
SYMBOL
PARAMETER
TEST
CONDITIONS
V
CC
= +5.0V
C
L
= 50pF,
V
CC
= +5.0V
10%
C
L
= 50pF,
V
CC
= +5.0V
10%
C
L
= 50pF,
UNIT
CONDITIONS
C
L
= 50pF,
R
L
= 500
C
L
= 50pF,
R
L
= 500
C
L
= 50pF,
R
L
= 500
MIN
TYP
MAX
MIN
MAX
MIN
MAX
t
PLH
t
PHL
Propagation delay
Dn to Qn
74F655A
Waveform 2
2.0
1.0
4.5
2.5
6.5
4.0
2.0
1.0
7.5
4.5
2.0
1.0
8.5
5.5
ns
ns
t
PLH
t
PHL
Propagation delay
Dn to Qn
74F656A
Waveform 1
2.0
2.5
4.0
5.5
6.5
7.0
2.0
2.5
7.0
7.5
2.0
2.5
8.0
9.0
ns
ns
t
PLH
t
PHL
Propagation delay
Dn to
E,
O
Waveform 1, 2
5.5
5.5
10.0
11.0
13.0
14.5
5.5
5.5
14.0
16.5
4.5
5.5
16.5
18.0
ns
ns
t
PZH
t
PZL
Output enable time to
High or Low level
Waveform 3
Waveform 4
3.5
4.0
7.0
8.0
10.5
11.0
3.5
4.5
11.5
12.0
3.0
4.0
13.0
13.5
ns
ns
t
PHZ
t
PLZ
Output disable time from
High or Low level
Waveform 3
Waveform 4
1.5
2.0
4.5
5.0
8.0
8.0
1.5
2.0
9.0
9.0
1.5
1.5
10.0
10.0
ns
ns
Philips Semiconductors
Product specification
74F655A*
74F656A
Buffers/drivers
1991 Jul 17
8
* Discontinued part. Please see the Discontinued Products List.
AC WAVEFORMS
SF00965
VM
VM
VM
VM
tPHL
tPLH
Dn
S
E,
S
O, Qn
Waveform 1. Propagation Delay, Non-Inverting Outputs
SF00966
VM
VM
VM
VM
tPHL
tPLH
Dn
S
E,
S
O, Qn
Waveform 2. Propagation Delay, Inverting Outputs
VM
VM
VM
tPHZ
tPZH
VOH -0.3V
0V
OEn
SF00967
S
E,
S
O, Qn, Qn
Waveform 3. 3-State Output Enable Time to High Level
and Output Disable Time from High Level
VM
VM
VM
tPLZ
tPZL
VOL +0.3V
OEn
SF00968
S
E,
S
O, Qn, Qn
Waveform 4. 3-State Output Enable Time to Low Level
and Output Disable Time from Low Level
TEST CIRCUIT AND WAVEFORM
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 3-State 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
SF00777
TEST
SWITCH
t
PLZ
closed
t
PZL
closed
All other
open
SWITCH POSITION
Philips Semiconductors
Product specification
74F655A*, 74F656A
Buffers/drivers
1991 Jul 17
9
* Discontinued part. Please see the Discontinued Product List.
DIP24:
plastic dual in-line package; 24 leads (300 mil)
SOT222-1
Philips Semiconductors
Product specification
74F655A*, 74F656A
Buffers/drivers
1991 Jul 17
10
* Discontinued part. Please see the Discontinued Product List.
SO24:
plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
Philips Semiconductors
Product specification
74F655A*, 74F656A
Buffers/drivers
1991 Jul 17
11
* Discontinued part. Please see the Discontinued Product List.
NOTES
Philips Semiconductors
Product specification
74F655A*, 74F656A
Buffers/drivers
yyyy mmm dd
12
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:
9397-750-05169
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.
* Discontinued part. Please see the Discontinued Product List.
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