933795210602 [NXP]
IC F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16, 0.300 INCH, PLASTIC, SOT-38-4, DIP-16, Counter;
| 型号： | 933795210602 |
| 厂家： | 
NXP |
| 描述： | IC F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT BIDIRECTIONAL BINARY COUNTER, PDIP16, 0.300 INCH, PLASTIC, SOT-38-4, DIP-16, Counter 光电二极管 逻辑集成电路 触发器 |
| 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
74F779
8-bit bidirectional binary counter (3-State)
Product specification
IC15 Data Handbook
1989 Sep 20
Philips
Semiconductors
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
FEATURES
PIN CONFIGURATION
• Multiplexed 3-State I/O ports for bus oriented applications
I/O1
I/O2
1
2
3
4
5
16 I/O0
• Built-in look-ahead carry capability
CP
15
14
13
12
11
10
9
• Center power pins to reduce effects of package inductance
• Count frequency 145MHz typical
I/O3
GND
I/O4
I/O5
CET
V
CC
TC
S0
S1
OE
• Supply current 90mA typical
6
7
8
• See 74F269 for 24-pin separate I/O port version
• See 74F579 for 20-pin version
I/O6
I/O7
• See 74F1779 for extended function version of the 74F799
SF01259
DESCRIPTION
The 74F779 is a fully synchronous 8-stage Up/Down Counter with
multiplexed 3-State I/O ports for bus-oriented applications. All
control functions (hold, count up, count down, synchronous load) are
controlled by two mode pine (S0, S1). The device also features
carry look-ahead for easy cascading. All state changes are initiated
by the rising edge of the clock. When CET is High the data outputs
are held in their current state and TC is held High. The TC output is
not recommended for use as a clock or asynchronous reset due to
the possibility of decoding spikes.
TYPICAL
SUPPLY CURRENT
(TOTAL)
TYPE
TYPICAL f
MAX
74F779
145MHz
90mA
ORDERING INFORMATION
COMMERCIAL RANGE
= 5V ±10%,
V
CC
DESCRIPTION
PKG DWG #
T
amb
= 0°C to +70°C
16-Pin Plastic DIP
16-Pin Plastic SOL
N74F779N
SOT38-4
N74F779D
SOT 162-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
PINS
DESCRIPTION
Data inputs
3.5/1.0
150/40
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
50/33
70µA/0.6mA
3.0mA/24mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
1.0mA/20mA
I/On
Data outputs
S0, S1
OE
Select inputs
Output Enable input (active Low)
CET
CP
Count Enable Trickle input (active Low)
Clock input (active rising edge)
TC
Terminal Count output (active Low)
NOTE:
One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.
2
1989 Sep 20
853–0385 97676
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
LOGIC SYMBOL
FUNCTION TABLE
INPUTS
OPERATING MODE
11
10
S1
S1 S0 CET OE CP
X
X
L
X
X
L
X
X
X
H
L
H
L
X
X
↑
I/O0 to I/O7 in High impedance
Flip-flop outputs appear on I/O lines
Parallel load all flip-flops
Hold (TC held High)
S0
14
15
9
CET
CP
TC
12
H
X
X
X
OE
(not LL)
↑
I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7
H
L
L
↑
Count up
16
1
2
3
5
6
7
8
V
=Pin 13
H
L
↑
Count down
CC
GND=Pin 4
SF01260
H = High voltage level
= Low voltage level
X = Don’t care
= Low-to-High clock transition
L
↑
LOGIC SYMBOL (IEEE/IEC)
(not LL) = S0 and S1 should never be Low voltage level at the
same time in the hold mode only.
CTR DIV 256
LOAD
0
11
10
0
DOWN
UP
—
M
3
1
HOLD
14
15
EN4
2 +/C5
1–
9
EN6
16
1
[1]
[2]
6
2
3
[4]
[8]
5
6
7
[16]
[32]
[64]
8
[128]
12
4, 5, 8 CT=256
4, 5, 8 CT=0
SF01261
3
1989 Sep 20
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
LOGIC DIAGRAM
11
S0
LOAD CONTROL
10
S1
CP
15
UP
DOWN
9
OE
16
DETAIL A
I/O0
1
DETAIL A
DETAIL A
I/O1
2
I/O2
3
DETAIL A
DETAIL A
I/O3
5
I/O4
6
I/O5
DETAIL A
DETAIL A
7
I/O6
DETAIL A
8
I/O7
14
CET
12
TC
CP
TOGGLE
DATA
LOAD
D
Q
Q
CP
Q
Q
DETAIL A
V
=Pin 13
CC
GND=Pin 4
SF01262
4
1989 Sep 20
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
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
OUT
Voltage applied to output in High output state
–0.5 to V
CC
TC
40
48
mA
mA
°C
°C
I
Current applied to output in Low output state
OUT
I/On
T
Operating free-air temperature range
Storage temperature
0 to +70
amb
T
–65 to +150
stg
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
UNIT
MIN
4.5
NOM
MAX
V
Supply voltage
5.0
5.5
V
CC
IH
IL
V
V
High-level input voltage
Low-level input voltage
Input clamp current
2.0
V
0.8
–18
–1
V
I
mA
mA
mA
mA
mA
°C
IK
TC
I
High-level output current
Low-level output current
OH
OL
I/On
TC
–3
20
I
I/On
24
T
amb
Operating free-air temperature range
0
70
5
1989 Sep 20
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
NO TAG
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
MAX
TYP
MIN
NO TAG
V
V
V
= MIN,
= MAX
= MIN
±10%V
2.5
2.7
2.4
2.7
V
V
V
V
CC
IL
CC
TC
I
I
I
= –1mA
= –3mA
= MAX
OH
OH
OL
±5%V
3.4
IH
CC
V
OH
High-level output voltage
V
V
V
= MIN,
= MAX
= MIN
±10%V
±5%V
CC
IL
CC
I/On
3.3
0.30
0.35
–0.73
IH
CC
V
V
V
= MIN,
= MAX
= MIN
±10%V
0.50
0.50
V
V
CC
IL
CC
CC
V
V
Low-level output voltage
Input clamp voltage
OL
±5%V
IH
V
CC
V
CC
V
CC
V
CC
V
CC
= MIN, I = I
IK
–1.2
1
V
IK
I
I/On
= 5.5V, V = 5.5V
mA
µA
µA
mA
I
Input current at maximum
input voltage
I
I
others
= 5.5V, V = 7.0V
100
20
I
I
I
High-level input current
Low-level input current
= MAX, V = 2.7V
I
IH
except
I/On
= MAX, V = 0.5V
–0.6
IL
I
Off-state output current
High-level voltage applied
I
+I
V
= MAX, V = 2.7V
70
µA
µA
IH OZH
CC
O
I/On
Off-state output current
Low-level voltage applied
I +I
IL OZL
V
V
= MAX, V = 0.5V
–600
CC
O
NO TAG
I
Short-circuit output current
= MAX
–60
–150
116
mA
mA
mA
mA
OS
CC
I
I
I
82
91
97
CCH
CCL
CCZ
128
136
I
Supply current (total)
V
CC
= MAX
CC
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
3. Not more than one output should be shorted at a time. For testing I , the use of high-speed test apparatus and/or sample-and-hold
OS
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 tests should be performed last.
OS
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
= +25°C
T
= 0°C to +70°C
amb
V
amb
V
SYMBOL
PARAMETER
TEST CONDITIONS
= +5V
= +5V ± 10%
UNIT
CC
CC
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
125
145
115
MHz
MAX
t
t
Propagation delay
CP to I/On
4.5
5.5
7.0
8.0
10.5
10.5
4.5
5.5
11.0
11.0
ns
ns
PLH
PHL
t
t
Propagation delay
CP to TC
4.5
4.5
7.0
7.0
9.0
9.0
4.5
4.5
10.0
10.0
ns
ns
PLH
PHL
Waveform 1
Waveform 2
t
t
Propagation delay
CET to TC
3.0
3.0
4.5
5.5
6.5
7.5
2.5
2.5
7.5
8.0
ns
ns
PLH
PHL
t
t
Output Enable time to
High or Low level
Waveform 4
Waveform 5
2.5
4.5
4.5
6.5
7.0
9.0
2.5
4.5
8.0
9.5
ns
ns
PZH
PZL
t
t
Output Enable time from
High or Low level
Waveform 4
Waveform 5
1.0
1.0
3.0
4.0
6.5
7.0
1.0
1.0
8.0
8.0
ns
ns
PHZ
PLZ
6
1989 Sep 20
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
AC SETUP REQUIREMENTS
LIMITS
T
= +25°C
T
= 0°C to +70°C
amb
V
amb
V
SYMBOL
PARAMETER
TEST CONDITIONS
= +5V
= +5V ± 10%
UNIT
CC
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
5.0
5.0
5.0
5.0
ns
ns
s
Waveform 3
Waveform 3
Waveform 3
Waveform 3
Waveform 3
Waveform 3
Waveform 1
I/O to CP
n
t (H)
Hold time, High or Low
1.0
1.0
1.0
1.0
ns
ns
h
t (L)
h
I/O to CP
n
t (H)
Setup time, High or Low
CET to CP
5.0
5.5
5.0
6.0
ns
ns
s
t (L)
s
t (H)
Hold time, High or Low
CET to CP
0
0
0
0
ns
ns
h
t (L)
h
t (H)
Setup time, High or Low
Sn to CP
8.0
8.0
8.5
8.5
ns
ns
s
t (L)
s
t (H)
Hold time, High or Low
Sn to CP
0
0
0
0
ns
ns
h
t (L)
h
t (H)
CP Pulse width,
High or Low
4.0
4.0
4.0
4.0
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.
1/f
MAX
Sn, I/On,
CET
V
V
V
V
M
M
M
M
CP
t (H)
s
t (H)
h
t (L)
s
t (L)
h
V
V
M
M
t (H)
W
t (L)
W
CP
V
V
M
M
t
t
t
t
PHL
PLH
I/On
TC
V
V
V
V
M
M
M
M
SF01265
PHL
Waveform 3. Data Setup and Hold Times
PLH
SF01263
V
V
OE
M
M
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
V
-0.3V
OH
t
t
PHZ
PZH
I/On
V
M
0V
SF01266
CET
TC
V
V
M
M
Waveform 4. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
t
t
PHL
PLH
V
V
M
M
V
V
M
OE
SF01264
M
Waveform 2. Propagation Delay CET Input to
Terminal Count Output
t
t
PLZ
PZL
3.5V
V
M
I/On
V
+0.3V
OL
SF01267
Waveform 5. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
7
1989 Sep 20
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
TEST CIRCUIT AND WAVEFORMS
V
CC
t
w
AMP (V)
90%
7.0V
90%
NEGATIVE
R
V
V
M
M
L
PULSE
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)
90%
M
90%
POSITIVE
PULSE
V
V
M
Test Circuit for 3-State Outputs
10%
10%
0V
t
w
SWITCH POSITION
TEST
SWITCH
closed
closed
open
Input Pulse Definition
t
t
PLZ
PZL
All other
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
amplitude
TLH
THL
of
OUT
2.5ns
2.5ns
74F
3.0V
1.5V
1MHz
500ns
SF00777
8
1989 Sep 20
Philips Semiconductors
Product specification
74F779
8-bit bidirectional binary counter (3-State)
DIP16: plastic dual in-line package; 16 leads (300 mil)
SOT38-4
9
1989 Sep 20
Philips Semiconductors
Product specification
74F779
8-bit bidirectional binary counter (3-State)
SO16: plastic small outline package; 16 leads; body width 7.5 mm
SOT162-1
10
1989 Sep 20
Philips Semiconductors
Product specification
74F779
8-bit bidirectional binary counter (3-State)
NOTES
11
1989 Sep 20
Philips Semiconductors
Product specification
74F779
8-bit bidirectional binary counter (3-State)
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
9397-750-05179
Document order number:
Philips
Semiconductors
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