N74F647N [PHILIPS]
Registered Bus Transceiver, 1-Func, 8-Bit, True Output, TTL, PDIP24,;
| 型号： | N74F647N |
| 厂家： | 
PHILIPS SEMICONDUCTORS |
| 描述： | Registered Bus Transceiver, 1-Func, 8-Bit, True Output, TTL, PDIP24, 输入元件 光电二极管 逻辑集成电路 |
| 文件： | 总12页 (文件大小：110K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F647
Octal transceiver/register, non-inverting
(open-collector)
74F649
Octal transceiver/register, inverting
(open-collector)
Product specification
IC15 Data Handbook
1992 Feb 28
Philips
Semiconductors
Philips Semiconductors
Product specification
Octal transceivers/registers (open-collector)
74F647/74F649
74F647 Octal Transceiver/Register, Non-inverting (Open Collector)
74F649 Octal Transceiver/Register, Inverting (Open Collector)
data when the Output Enable, OE is active Low. In the isolation
mode (Output Enable, OE = High), data from Bus A may be stored
in the B register and/or data from Bus B may be stored in the A
register.
FEATURES
• High impedance NPN base inputs for reduced loading
(20µA in High and Low states)
• Independent registers for A and B buses
• Multiplexed real-time and stored data
• Choice of non-inverting and inverting data paths
• Open Collector outputs
When an output function is disabled, the input function is still
enabled and may be used to store and transmit data. Only one of
the two buses, A or B, may be driven at a time. The following
examples demonstrate the four fundamental bus-management
functions that can be performed with the 74F647 and 74F649.
• 300 mil wide 24-pin Slim Dip package
TYPICAL
TYPICAL SUPPLY CURRENT
(TOTAL)
TYPE
f
max
DESCRIPTION
74F647
74F649
65MHz
65MHz
125mA
125mA
The 74F647 and 74F649 Transceivers/Registers consist of bus
transceiver circuits with open-collector outputs, D-type flip-flops, and
control circuitry arranged for multiplexed transmission of data
directly from the input bus or from the internal registers. Data on the
A or B bus will be clocked into the registers as the appropriate clock
pin goes to a High logic level. Output Enable (OE) and DIR pins are
provided to control the transceiver function. In the transceiver mode,
data present at the high impedance port may be stored in either the
A or B register or both.
ORDERING INFORMATION
COMMERCIAL RANGE
= 5V ±10%,
V
amb
DESCRIPTION
PKG DWG #
SOT222-1
SOT137-1
CC
T
= 0°C to +70°C
24-pin plastic Slim
DIP (300mil)
N74F647N, N74F649N
The select (SAB, SBA) controls can multiplex stored and real-time
(transparent mode) data. The DIR determines which bus will receive
24-pin plastic SOL
N74F647D, N74F649D
PIN CONFIGURATION – 74F647
PIN CONFIGURATION – 74F649
CPAB
SAB
DIR
1
2
3
4
5
24
CPAB
SAB
DIR
1
2
3
4
5
24
V
V
CC
CC
23 CPBA
22 SBA
21 OE
23 CPBA
22 SBA
21 OE
A0
A1
A0
A1
20
20
B0
B1
B0
B1
6
7
19
18
17
16
15
14
13
6
7
19
18
17
16
15
14
13
A2
A3
A4
A5
A6
A7
A2
A3
A4
A5
A6
A7
B2
B3
B2
B3
8
8
9
9
B4
B5
B6
B7
B4
B5
B6
B7
10
11
10
11
GND 12
GND 12
SF01196
SF01196
2
1992 Feb 28
853-0876 05853
Philips Semiconductors
Product specification
Octal transceivers/registers (open-collector)
74F647/74F649
LOGIC SYMBOL – 74F647
LOGIC SYMBOL – 74F649
4
5
6
7
8
9
10 11
4
5
6
7
8
9
10 11
A0 A1 A2 A3 A4 A5 A6 A7
CPAB
A0 A1 A2 A3 A4 A5 A6 A7
CPAB
1
2
1
2
SAB
DIR
SAB
DIR
3
3
23
22
21
CPBA
SBA
OE
23
22
21
CPBA
SBA
OE
B0 B1 B2 B3 B4 B5 B6 B7
B0 B1 B2 B3 B4 B5 B6 B7
V
=Pin 24
CC
20 19 18 17 16 15 14 13
SF01197
V
=Pin 24
CC
GND=Pin 12
20 19 18 17 16 15 14 13
GND=Pin 12
SF01198
LOGIC SYMBOL – 74F647
LOGIC SYMBOL – 74F648
21
21
G3
G3
3
3
3EN1(BA)
3EN1(BA)
3EN2(AB)
3EN2(AB)
23
23
C4
C4
22
G5
1
22
G5
1
C6
C6
2
2
G7
G7
20
20
5
5
4D
5
5
4D
1
1
≥
≥
4
4
1
1
1
1
6D
7
7
6D
7
7
≥ 1
2
≥ 1
2
1
1
19
19
5
5
18
17
18
17
6
7
6
7
16
15
16
15
8
9
8
9
14
13
14
13
10
11
10
11
SF01199
SF01200
REAL TIME BUS TRANSFER
BUS B TO BUS A
REAL TIME BUS TRANSFER
BUS A TO BUS B
STORAGE FROM
A, B, OR A AND B
TRANSFER STORED DATA
TO A OR B
BUS A
BUS B
BUS A
BUS B
BUS A
BUS B
BUS A
BUS B
OE DIR CPAB CPBA SAB SBA
OE DIR CPAB CPBA SAB SBA
OE DIR CPAB CPBA SAB SBA
OE DIR CPAB CPBA SAB SBA
L
L
X
X
X
L
L
H
X
X
L
X
X
X
H
X
X
X
X
X
X
X
X
X
X
L
L
L
X
H or L
X
X
H
H
X
X
H
H or L
SF01201
3
1992 Feb 28
Philips Semiconductors
Product specification
Octal transceivers/registers (open-collector)
74F647/74F649
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
1.0/0.033
1.0/0.033
1.0/0.033
1.0/0.033
1.0/0.066
1.0/0.066
OC/106.7
OC/106.7
HIGH/LOW
20µA/20µA
20µA/20µA
20µA/20µA
20µA/20µA
20µA/20µA
20µA/20µA
20µA/20µA
20µA/20µA
OC/64mA
A0 - A7
A inputs
B0 - B7
CPAB
CPBA
SAB
B inputs
A-to-B clock input
B-to-A clock input
A-to-B select input
B-to-A select input
SBA
DIR
Data flow Directional control enable input
Output Enable input
A outputs
OE
A0 - A7
B0 - B7
B outputs
OC/64mA
NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state. OC = Open Collector
FUNCTION TABLE
INPUTS
DATA I/O
OPERATING MODE
OE
X
DIR
X
CPAB CPBA
SAB
X
SBA
X
A0-A7
B0-B7
Unspecified*
Input
↑
X
↑
X
↑
Input
Store A, B unspecified*
Store B, A unspecified*
Store A, B unspecified*
Store B, A unspecified*
X
X
X
X
Unspecified*
H
H
X
X
↑
X
X
X
X
Store A and B data
Isolation, hold storage
Store A and B data
Isolation, hold storage
Input
Input
H or L H or L
L
L
L
L
X
X
X
X
X
L
H
Real time B data to A bus Real time B data to A bus
Stored B data to A bus Stored B data to A bus
Output
Input
Input
H or L
L
L
H
H
H or L
X
X
X
L
H
X
X
Output
Real time A data to B bus Real time A data to B bus
Stored A data to B bus Stored A data to B bus
H = High voltage level
L
X
↑
*
=
=
=
=
Low voltage level
Don’t care
Low-to-High clock transition
The data output function may be enabled or disabled by various signals at the OE and DIR inputs. Data input functions are always
enabled, i.e., data at the bus pins will be stored on every Low-to-High transition of the clock.
LOGIC DIAGRAM – 74F647
LOGIC DIAGRAM – 74F649
21
21
OE
OE
3
23
22
3
DIR
DIR
23
CPBA
CPBA
22
SBA
CPAB
SAB
SBA
CPAB
1
2
1
2
SAB
1 of 8 Channels
1 of 8 Channels
1D
C1
1D
C1
4
4
A0
A0
20
20
B0
B0
1D
C1
1D
C1
To 7 other channels
To 7 other channels
SF01202
SF01203
4
1992 Feb 28
Philips Semiconductors
Product specification
Octal transceivers/registers (open-collector)
74F647/74F649
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
–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
4.5
64
V
I
mA
V
IK
V
OH
High-level output voltage
Low-level output current
I
mA
°C
OL
T
amb
Operating free-air temperature range
0
70
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
UNIT
1
SYMBOL
PARAMETER
TEST CONDITIONS
2
MIN
TYP
MAX
250
V
CC
= MIN, V = MAX,
= MIN, V = MAX
IL
I
High-level output current
µA
OH
V
IH
OH
V
V
V
= MIN,
= MAX
= MIN,
I
I
= 48mA
= 64mA
±10%V
±5%V
0.38
0.42
0.55
V
CC
OL
CC
V
V
Low-level output voltage
Input clamp voltage
OL
IL
IH
0.55
–1.2
100
1
V
V
OL
CC
V
= MIN, I = I
IK
–0.73
I
CC
I
Others
An, Bn
V
= 0.0, V = 7.0V
µA
mA
CC
I
Input current at
maximum input voltage
I
I
V
= 5.5V, V = 5.5V
CC
CC
I
I
I
High-level input current
Low-level input current
V
= MAX, V = 2.7V
20
µA
µA
IH
I
V
= MAX, V = 0.5V
–20
145
200
IL
CC
I
I
I
105
145
mA
CCH
I
Supply current (total)
V
CC
= MAX
CC
mA
CCL
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
5
1992 Feb 28
Philips Semiconductors
Product specification
Octal transceivers/registers (open-collector)
74F647/74F649
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25°C
T
amb
= 0°C to +70°C
SYMBOL
PARAMETER
TEST CONDITION
UNIT
V
CC
= +5.0V
V
CC
= +5.0V ± 10%
C = 50pF, R = 500Ω
C = 50pF, R = 500Ω
L L
L
L
MIN
TYP
MAX
MIN
MAX
f
Maximum clock frequency
Waveform 1
Waveform 1
50
65
40
MHz
MAX
t
t
Propagation delay
CPAB to Bn or CPBA or An
7.0
5.5
12.0
8.5
15.0
11.0
7.0
5.5
16.5
12.0
ns
ns
PLH
PHL
t
t
Propagation delay
An to Bn or Bn to An
Waveform 2
Waveform 3
7.5
4.0
10.5
7.0
13.5
9.5
7.5
4.0
16.0
10.5
ns
ns
PLH
PHL
t
t
Propagation delay
SBA to An or SAB to Bn
Waveform 2
Waveform 3
7.5
4.0
11.5
7.0
14.5
9.5
7.5
4.0
17.0
10.5
ns
ns
PLH
PHL
t
t
Propagation delay
OE to An or Bn
Waveform 2
Waveform 3
9.0
6.5
13.0
10.0
16.0
12.5
9.0
6.5
18.5
13.5
ns
ns
PLH
PHL
t
t
Propagation delay
DIR to An or Bn
Waveform 2
Waveform 3
9.0
7.0
13.0
15.0
16.0
18.0
9.0
7.0
18.5
20.0
ns
ns
PLH
PHL
AC SETUP REQUIREMENTS
LIMITS
T
V
= +25°C
= +5.0V
T
V
CC
= 0°C to +70°C
= +5.0V ± 10%
amb
amb
SYMBOL
PARAMETER
TEST CONDITION
UNIT
CC
C = 50pF, R = 500Ω
C = 50pF, R = 500Ω
L L
L
L
MIN
TYP
MAX
MIN
MAX
t (H)
t (L)
s
Setup time, High or Low
An to CPBA or Bn to CPAB
4.0
4.0
5.0
5.0
ns
ns
s
Waveform 4
Waveform 4
Waveform 1
t (H)
Hold time, High or Low
An to CPBA or Bn to CPAB
0
0
0
0
ns
ns
s
t (L)
s
t (H)
Pulse width, High or Low
CPAB or CPBA
4.5
6.0
4.5
6.5
ns
ns
w
t (L)
w
AC WAVEFORMS
For all waveforms, V = 1.5V
M
The shaded areas indicate when the input is permitted to change for predictable output performance.
An or Bn
SBA or SAB
1/f
MAX
V
M
V
M
CPBA
or
CPAB
t
t
PLH
PHL
V
t
V
V
t
M
t
M
t
M
(H)
(L)
W
W
V
V
M
M
PHL
PLH
Bn or An
An or Bn
SF00395
An or Bn
V
V
M
M
Waveform 2. Propagation Delay, An to Bn or Bn to An and
SBA to An or SAB to Bn
SF01161
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
6
1992 Feb 28
Philips Semiconductors
Product specification
Octal transceivers/registers (open-collector)
74F647/74F649
AC WAVEFORMS (Continued)
For all waveforms, V = 1.5V
M
The shaded areas indicate when the input is permitted to change for predictable output performance.
SBA or SAB
An or Bn
Bn or An
V
V
M
M
An or Bn
V
V
V
V
t
M
M
M
M
t
t
PHL
t (H)
t
(H)
t (L)
(H)
PLH
s
h
s
h
An or Bn
V
V
M
M
CPBA
or
CPAB
V
V
M
M
SF00396
SF01165
Waveform 3. Propagation Delay, An to Bn or Bn to An and
SBA to An or SAB to Bn
Waveform 4. Data Setup and Hold Times
TYPICAL PROPAGATION DELAYS VERSUS LOAD FOR OPEN COLLECTOR OUTPUTS
18
16
14
t
t
PLH
12
10
8
PROPAGATION
DELAY (ns)
PHL
6
4
2
0
0
100
200
300
400
500
600
LOAD RESISTOR (W)
SF01208
NOTE:
When using open-collector part, the value of the pull-up resistor greatly affects the value of the t
. For example, changing the pull-up resistor
PLH
value from 500W to 100W will improve the t
up to 50% with only slight increase in the t
. However, if the pull-up resistor is changed, the
PHL
PLH
user must take certain that the total I current through the resistor and the total I ’s of the receivers do not exceed the I maximum
OL
IL
OL
specification.
7
1992 Feb 28
Philips Semiconductors
Product specification
Octal transceivers/registers (open-collector)
74F647/74F649
TEST CIRCUIT AND WAVEFORMS
V
CC
t
w
AMP (V)
90%
7.0V
90%
NEGATIVE
PULSE
V
V
R
M
M
L
V
V
OUT
IN
10%
10%
PULSE
GENERATOR
D.U.T.
0V
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 Open Collector Outputs
SWITCH POSITION
10%
10%
t
w
TEST
Open Collector
All other
SWITCH
closed
open
Input Pulse Definition
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
SF00195
8
1992 Feb 28
Philips Semiconductors
Product specification
Transceivers/registers
74F647, 74F649
DIP24: plastic dual in-line package; 24 leads (300 mil)
SOT222-1
9
1992 Feb 28
Philips Semiconductors
Product specification
Transceivers/registers
74F647, 74F649
SO24: plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
10
1992 Feb 28
Philips Semiconductors
Product specification
Transceivers/registers
74F647, 74F649
NOTES
11
1992 Feb 28
Philips Semiconductors
Product specification
Transceivers/registers
74F647, 74F649
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
9397-750-05152
Document order number:
Philips
Semiconductors
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