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Philips
Semiconductors
74F398*, 74F399
Registers
Product specification
Supersedes data of 1990 Apr 08
IC15 Data Handbook
1999 Jan 08
INTEGRATED CIRCUITS
* Discontinued part. Please see the Discontinued Product List.
Philips Semiconductors
Product specification
74F398*,74F399
Registers
74F398 Quad 2-Port Register with True and Complementary Outputs
74F399 Quad 2-Port Register
2
1999 Jan 08
8530028 20616
* Discontinued part. Please see the Discontinued Products List..
FEATURES
Select inputs from two data sources
Fully positive edge-triggered
Both True and Complementary outputs74F398
DESCRIPTION
The 74F398 and 74F399 are the logical equivalent of a quad 2-input
multiplexer feeding into four edge-triggered flip-flops. A common
Select input determines which of two 4-bit words is accepted. The
selected data enters the flip-flops on the rising edge of the clock.
The 74F399 is the 16-pin version of the 74F398, with only the true
(Qn) outputs of the flip-flops available.
The 74F398 and 74F399 are high speed quad 2-port registers. They
select 4 bits of data from either of two sources (Ports) under control
of a common select input (S). The selected data is transferred to a
4-bit output register synchronous with the Low-to-High transition of
the Clock input (CP). The 4-bit D-type output register is fully
edge-triggered. The Data inputs (I0n, I1n) and Select input (S) must
be stable only a setup time prior to and hold time after the
Low-to-High transition of the Clock input for predictable operation.
The 74F398 has both Q and Q outputs.
TYPE
TYPICAL f
MAX
TYPICAL SUPPLY CURRENT
(TOTAL)
74F398
120MHz
25mA
74F399
120MHz
22mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
10%,
T
amb
= 0
C to +70
C
PKG DWG #
16-pin plastic DIP
N74F399N
SOT38-4
16-pin plastic SO
N74F399D
SOT109-1
PIN CONFIGURATION 74F398
20
19
18
17
16
15
14
7
6
5
4
3
2
1
I0b
V
CC
I1d
I1c
I0c
I0d
Qd
Qd
S
Qa
I1b
Qa
I0a
I1a
SF00947
13
8
Qb
Qc
12
9
Qb
Qc
11
10
GND
CP
PIN CONFIGURATION 74F399
16
15
14
13
12
11
6
5
4
3
2
1
I0b
V
CC
I1d
I1c
I0c
I0d
Qd
S
Qa
I1b
I0a
I1a
SF00951
10
7
Qb
Qc
9
8
GND
CP
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
I0a, I0b, I0c, I0d
Data inputs from source 0
1.0/1.0
20
A/0.6mA
I1a, I1b, I1c, I1d
Data inputs from source 1
1.0/1.0
20
A/0.6mA
S
Common Select input
1.0/1.0
20
A/0.6mA
CP
Clock input (active rising edge)
1.0/1.0
20
A/0.6mA
Qa, Qb, Qc, Qd
Register true outputs
50/33
1.0mA/20mA
Qa, Qb, Qc, Qd
Register complementary outputs (74F398)
50/33
1.0mA/20mA
NOTE:
One (1.0) FAST unit load is defined as: 20
A in the High state and 0.6mA in the Low state.
Philips Semiconductors
Product specification
74F398*,74F399
Registers
1999 Jan 08
3
* Discontinued part. Please see the Discontinued Products List..
LOGIC SYMBOL 74F398
11
1
S
CP
2
3
9
8
Qa
Qa
Qb
Qb
SF00948
VCC = Pin 20
GND = Pin 10
5
7
6
14
I1a
I0b
I1b
I0c
4
I0a
15
17
16
12
13
19
18
Qc
Qc
Qd
Qd
I1c
I0d
I1d
IEC/IEEE SYMBOL (IEEE/IEC) 74F398
SF00949
4
7
6
14
G1
1, 2D
1
11
MUX
3
9
8
C2
1, 2D
5
2
15
17
16
13
19
18
12
LOGIC SYMBOL 74F399
9
1
S
CP
2
7
Qa
Qb
SF00952
VCC = Pin 16
GND = Pin 8
4
6
5
11
I1a
I0b
I1b
I0c
3
I0a
12
14
13
10
15
Qc
Qd
I1c
I0d
I1d
IEC/IEEE SYMBOL (IEEE/IEC) 74F399
SF00953
3
6
5
11
G1
1, 2D
1
9
MUX
7
C1
1, 2D
4
2
12
14
13
15
10
FUNCTION TABLE
INPUTS
OUTPUTS
CP
S
I0n
I1n
Qn
Qn (74F398 only)
"
l
l
X
L
H
"
l
h
X
H
L
"
h
X
l
L
H
"
h
X
h
H
L
H = High voltage level
h
= High voltage level one setup time prior to the High-to-Low
clock transition
L
= Low voltage level
l
= Low voltage level one setup time prior to the High-to-Low
clock transition
X = Don't care
"
= Low-to-High clock transition
Philips Semiconductors
Product specification
74F398*,74F399
Registers
1999 Jan 08
4
* Discontinued part. Please see the Discontinued Products List..
LOGIC DIAGRAM 74F398
VCC = Pin 20
GND = Pin 10
SF00950
D
CP
S
I0a
I1a
1
4
5
D
CP
I0b
I1b
7
6
D
CP
I0c
I1c
14
15
D
CP
I0d
I1d
17
16
CP
11
2
3
9
8
12
13
19
18
Qa
Qa
Qb
Qb
Qc
Qc
Qd
Qd
LOGIC DIAGRAM 74F399
V
CC
= Pin 16
GND = Pin 8
SF00954
D
CP
S
I0a
I1a
1
3
4
D
CP
I0b
I1b
6
5
D
CP
I0c
I1c
11
12
D
CP
I0d
I1d
14
13
CP
9
2
7
10
15
Qa
Qb
Qc
Qd
Philips Semiconductors
Product specification
74F398*,74F399
Registers
1999 Jan 08
5
* Discontinued part. Please see the Discontinued Products List..
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
40
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
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
1
mA
I
OL
Low-level output current
20
mA
T
amb
Operating free-air temperature range
0
70
C
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
NO TAG
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
NO TAG
MIN
TYP
NO TAG
MAX
UNIT
V
O
High level output voltage
V
CC
= MIN, V
IL
= MAX,
10%V
CC
2.5
V
V
OH
High-level output voltage
CC
,
IL
,
V
IH
= MIN, I
OH
= MAX
5%V
CC
2.7
3.4
V
V
O
Low level output voltage
V
CC
= MIN, V
IL
= MAX,
10%V
CC
0.30
0.50
V
V
OL
Low-level output voltage
CC
,
IL
,
V
IH
= MIN, I
OL
= MAX
5%V
CC
0.30
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
High-level input current
V
CC
= MAX, V
I
= 2.7V
20
A
I
IL
Low-level input current
V
CC
= MAX, V
I
= 0.5V
0.6
mA
I
OS
Short-circuit output current
NO TAG
V
CC
= MAX
60
150
mA
I
CC
Supply current (total)
74F398
V
CC
= MAX
25
38
mA
I
CC
Supply current (total)
74F399
V
CC
= MAX
22
34
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.
Philips Semiconductors
Product specification
74F398*,74F399
Registers
1999 Jan 08
6
* Discontinued part. Please see the Discontinued Products List..
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
V
CC
= +5V
T
amb
= +25
C
C
L
= 50pF, R
L
= 500
V
CC
= +5V
10%
T
amb
= 0
C to +70
C
C
L
= 50pF, R
L
= 500
UNIT
MIN
TYP
MAX
MIN
MAX
f
MAX
Maximum clock frequency
Waveform 1
100
120
90
MHz
t
PLH
t
PHL
Propagation delay
CP to Qn or Qn
Waveform 1
3.0
3.0
5.7
6.5
7.5
8.5
3.0
3.0
8.5
9.0
ns
AC SETUP REQUIREMENTS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
V
CC
= +5V
T
amb
= +25
C
C
L
= 50pF, R
L
= 500
V
CC
= +5V
10%
T
amb
= 0
C to +70
C
C
L
= 50pF, R
L
= 500
UNIT
MIN
TYP
MAX
MIN
MAX
t
s
(H)
t
s
(L)
Setup time, High or Low
I0n, I1n to CP
Waveform 2
3.0
3.0
3.0
3.0
ns
t
h
(H)
t
h
(L)
Hold time, High or Low
I0n, I1n to CP
Waveform 2
1.0
1.0
1.0
1.0
ns
t
s
(H)
t
s
(L)
Setup time, High or Low
S to CP
Waveform 2
7.5
7.5
8.5
8.5
ns
t
h
(H)
t
h
(L)
Hold time, High or Low
S to CP
Waveform 2
0
0
0
0
ns
t
W
(H)
t
W
(L)
CP Pulse width
High or Low
Waveform 1
4.0
6.0
4.0
6.0
ns
AC WAVEFORMS
For all waveforms, V
M
= 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
V
M
V
M
V
M
1/f
MAX
t
PHL
t
w
(H)
Qn, Qn
t
w
(L)
V
M
CP
t
PLH
SF00955
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
SF00956
V
M
V
M
V
M
V
M
V
M
V
M
I0n, I1n, S
CP
t
s
(H)
t
h
(H)
t
s
(L)
t
h
(L)
Waveform 2. Data and Select Setup and Hold Times
Philips Semiconductors
Product specification
74F398*,74F399
Registers
1999 Jan 08
7
* Discontinued part. Please see the Discontinued Products List..
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 Totem-Pole 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
SF00006
Philips Semiconductors
Product specification
74F398*, 74F399
Registers
1999 Jan 08
8
* Discontinued part. Please see the Discontinued Product List.
DIP16:
plastic dual in-line package; 16 leads (300 mil)
SOT38-4
Philips Semiconductors
Product specification
74F398*, 74F399
Registers
1999 Jan 08
9
* Discontinued part. Please see the Discontinued Product List.
SO16:
plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
Philips Semiconductors
Product specification
74F398*, 74F399
Registers
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:
9397-750-05127
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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