PHILIPS N74F779N 8-bit bidirectional binary counter 3-state Datasheet

INTEGRATED CIRCUITS
74F779
8-bit bidirectional binary counter (3-State)
Product specification
IC15 Data Handbook
1989 Sep 20
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
FEATURES
74F779
PIN CONFIGURATION
• Multiplexed 3-State I/O ports for bus oriented applications
• Built-in look-ahead carry capability
• Center power pins to reduce effects of package inductance
• Count frequency 145MHz typical
• Supply current 90mA typical
• See 74F269 for 24-pin separate I/O port version
• See 74F579 for 20-pin version
• See 74F1779 for extended function version of the 74F799
I/O1 1
16 I/O0
I/O2
2
15 CP
I/O3
3
14 CET
GND
4
13 VCC
I/O4
5
12 TC
I/O5
6
11 S0
I/O6 7
10 S1
I/O7
9
8
OE
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.
TYPE
TYPICAL fMAX
TYPICAL
SUPPLY CURRENT
(TOTAL)
74F779
145MHz
90mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
16-Pin Plastic DIP
N74F779N
SOT38-4
16-Pin Plastic SOL
N74F779D
SOT 162-1
PKG DWG #
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
Data inputs
3.5/1.0
70µA/0.6mA
PINS
I/On
DESCRIPTION
Data outputs
150/40
3.0mA/24mA
S0, S1
Select inputs
1.0/1.0
20µA/0.6mA
OE
Output Enable input (active Low)
1.0/1.0
20µA/0.6mA
CET
Count Enable Trickle input (active Low)
1.0/1.0
20µA/0.6mA
CP
Clock input (active rising edge)
1.0/1.0
20µA/0.6mA
50/33
1.0mA/20mA
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.
1989 Sep 20
2
853–0385 97676
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
LOGIC SYMBOL
74F779
FUNCTION TABLE
INPUTS
11
S0
14
CET
15
CP
9
OE
S1
TC
16
1
2
3
5
6
7
8
SF01260
CTR DIV 256
11
14
15
9
0
1
LOAD
0
M — DOWN
3 UP
HOLD
EN4
2 +/C5
1–
EN6
[1]
6
[2]
[4]
[8]
[16]
16
1
2
3
5
6
[32]
[64]
[128]
4, 5, 8 CT=256
4, 5, 8 CT=0
7
8
12
SF01261
1989 Sep 20
S0
CET
OE
CP
X
X
X
H
X
I/O0 to I/O7 in High impedance
X
X
X
L
X
Flip-flop outputs appear on I/O lines
L
L
X
H
↑
Parallel load all flip-flops
(not LL)
H
X
↑
Hold (TC held High)
H
L
L
X
↑
Count up
L
H
L
X
↑
Count down
H = High voltage level
L = Low voltage level
X = Don’t care
↑ = Low-to-High clock transition
(not LL) = S0 and S1 should never be Low voltage level at the
same time in the hold mode only.
LOGIC SYMBOL (IEEE/IEC)
10
S1
12
I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7
VCC=Pin 13
GND=Pin 4
OPERATING MODE
10
3
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
LOGIC DIAGRAM
S0 11
LOAD CONTROL
S1 10
CP
15
UP
DOWN
OE
9
16
DETAIL A
1
DETAIL A
I/O2 2
DETAIL A
3
DETAIL A
5
DETAIL A
I/O0
I/O1
I/O3
I/O4
I/O5
I/O6
I/O7
CET
TC
6
DETAIL A
7
DETAIL A
DETAIL A
8
14
12
CP
TOGGLE
DATA
LOAD
D
CP
Q
Q
Q
Q
DETAIL A
VCC=Pin 13
GND=Pin 4
SF01262
1989 Sep 20
4
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
UNIT
VCC
Supply voltage
–0.5 to +7.0
V
VIN
Input voltage
–0.5 to +7.0
V
IIN
Input current
–30 to +5
mA
VOUT
Voltage applied to output in High output state
–0.5 to VCC
V
TC
40
mA
IOUT
O
Current applied to output in Low output state
I/On
48
mA
Tamb
Operating free-air temperature range
0 to +70
°C
Tstg
Storage temperature
–65 to +150
°C
RECOMMENDED OPERATING CONDITIONS
LIMITS
SYMBOL
PARAMETER
UNIT
MIN
NOM
MAX
5.0
5.5
VCC
Supply voltage
4.5
VIH
High-level input voltage
2.0
VIL
Low-level input voltage
0.8
V
IIK
Input clamp current
–18
mA
TC
–1
mA
IOH
O
High level output current
High-level
I/On
–3
mA
TC
20
mA
IOL
O
Low level output current
Low-level
I/On
24
mA
Tamb
Operating free-air temperature range
70
°C
1989 Sep 20
0
5
V
V
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
SYMBOL
TEST CONDITIONSNO TAG
PARAMETER
TC
VOH
O
VCC = MIN,
VIL = MAX
VIH = MIN
IOH
1mA
O = –1mA
VCC = MIN,
VIL = MAX
VIH = MIN
IOH
3mA
O = –3mA
VCC = MIN,
VIL = MAX
VIH = MIN
IOL
O = MAX
High level output voltage
High-level
I/On
MIN
±10%VCC
2.5
±5%VCC
2.7
±10%VCC
2.4
±5%VCC
2.7
TYP
NO TAG
MAX
UNIT
V
3.4
V
V
3.3
V
±10%VCC
0.30
0.50
V
±5%VCC
0.35
0.50
V
–0.73
–1.2
V
VCC = 5.5V, VI = 5.5V
1
mA
others
VCC = 5.5V, VI = 7.0V
100
µA
except
I/On
VCC = MAX, VI = 2.7V
20
µA
VCC = MAX, VI = 0.5V
–0.6
mA
VCC = MAX, VO = 2.7V
70
µA
–600
µA
–150
mA
82
116
mA
91
128
mA
97
136
mA
VOL
O
Low level output voltage
Low-level
VIK
Input clamp voltage
II
Input current at maximum
input voltage
I/On
IIH
High-level input current
IIL
Low-level input current
IIH+IOZH
Off-state output current
High-level voltage applied
VCC = MIN, II = IIK
I/On
IIL+IOZL
Off-state output current
Low-level voltage applied
VCC = MAX, VO = 0.5V
IOS
Short-circuit output currentNO TAG
VCC = MAX
–60
ICCH
ICC
Supply current (total)
ICCL
VCC = MAX
ICCZ
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 VCC = 5V, Tamb = 25°C.
3. Not more than one output should be shorted at a time. For testing IOS, 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, IOS tests should be performed last.
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
Tamb = +25°C
VCC = +5V
CL = 50pF, RL = 500Ω
TEST CONDITIONS
MIN
TYP
MAX
Tamb = 0°C to +70°C
VCC = +5V ± 10%
CL = 50pF, RL = 500Ω
MIN
UNIT
MAX
fMAX
Maximum clock frequency
Waveform 1
125
145
tPLH
tPHL
Propagation delay
CP to I/On
Waveform 1
4.5
5.5
7.0
8.0
10.5
10.5
4.5
5.5
11.0
11.0
ns
ns
tPLH
tPHL
Propagation delay
CP to TC
Waveform 1
4.5
4.5
7.0
7.0
9.0
9.0
4.5
4.5
10.0
10.0
ns
ns
tPLH
tPHL
Propagation delay
CET to TC
Waveform 2
3.0
3.0
4.5
5.5
6.5
7.5
2.5
2.5
7.5
8.0
ns
ns
tPZH
tPZL
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
tPHZ
tPLZ
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
1989 Sep 20
6
115
MHz
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
AC SETUP REQUIREMENTS
LIMITS
SYMBOL
PARAMETER
Tamb = +25°C
VCC = +5V
CL = 50pF, RL = 500Ω
TEST CONDITIONS
MIN
TYP
Tamb = 0°C to +70°C
VCC = +5V ± 10%
CL = 50pF, RL = 500Ω
MAX
MIN
UNIT
MAX
ts(H)
ts(L)
Setup time, High or Low
I/On to CP
Waveform 3
5.0
5.0
5.0
5.0
ns
ns
th(H)
th(L)
Hold time, High or Low
I/On to CP
Waveform 3
1.0
1.0
1.0
1.0
ns
ns
ts(H)
ts(L)
Setup time, High or Low
CET to CP
Waveform 3
5.0
5.5
5.0
6.0
ns
ns
th(H)
th(L)
Hold time, High or Low
CET to CP
Waveform 3
0
0
0
0
ns
ns
ts(H)
ts(L)
Setup time, High or Low
Sn to CP
Waveform 3
8.0
8.0
8.5
8.5
ns
ns
th(H)
th(L)
Hold time, High or Low
Sn to CP
Waveform 3
0
0
0
0
ns
ns
tw(H)
tw(L)
CP Pulse width,
High or Low
Waveform 1
4.0
4.0
4.0
4.0
ns
ns
AC WAVEFORMS
For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
1/fMAX
CP
Sn, I/On,
CET
VM
CP
tPHL
VM
VM
th(H)
ts(L)
th(L)
VM
tPHL
SF01265
Waveform 3. Data Setup and Hold Times
tPLH
VM
VM
SF01263
OE
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
VM
VM
tPZH
tPHZ
I/On
CET
VM
0V
SF01266
Waveform 4. 3-State Output Enable Time to High Level and
Output Disable Time from High Level
tPLH
VM
VOH -0.3V
VM
VM
tPHL
TC
VM
VM
VM
TC
VM
tW(L)
tPLH
I/On
ts(H)
VM
tW(H)
VM
VM
OE
SF01264
Waveform 2. Propagation Delay CET Input to
Terminal Count Output
VM
VM
tPZL
tPLZ
3.5V
I/On
VM
VOL +0.3V
SF01267
Waveform 5. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
1989 Sep 20
7
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F779
TEST CIRCUIT AND WAVEFORMS
VCC
7.0V
VIN
RL
VOUT
PULSE
GENERATOR
tw
90%
NEGATIVE
PULSE
VM
CL
AMP (V)
VM
10%
D.U.T.
RT
90%
10%
tTHL (tf )
tTLH (tr )
tTLH (tr )
tTHL (tf )
0V
RL
AMP (V)
90%
90%
Test Circuit for 3-State Outputs
POSITIVE
PULSE
VM
VM
10%
TEST
tPLZ
tPZL
All other
SWITCH
closed
closed
open
DEFINITIONS:
RL = Load resistor;
see AC electrical characteristics for value.
CL = Load capacitance includes jig and probe capacitance;
see AC electrical characteristics for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
10%
tw
SWITCH POSITION
0V
Input Pulse Definition
INPUT PULSE REQUIREMENTS
family
amplitude VM
74F
3.0V
1.5V
rep. rate
tw
tTLH
tTHL
1MHz
500ns
2.5ns
2.5ns
SF00777
1989 Sep 20
8
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
DIP16: plastic dual in-line package; 16 leads (300 mil)
1989 Sep 20
9
74F779
SOT38-4
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
SO16: plastic small outline package; 16 leads; body width 7.5 mm
1989 Sep 20
10
74F779
SOT162-1
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
NOTES
1989 Sep 20
11
74F779
Philips Semiconductors
Product specification
74F779
8-bit bidirectional binary counter (3-State)
Data sheet status
Data sheet
status
Product
status
Definition [1]
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.
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.
 Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
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Document order number:
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Date of release: 10-98
9397-750-05179