74F1779 [NXP]
8-bit bidirectional binary counter -State; 8位双向二进制计数器-State
| 型号： | 74F1779 |
| 厂家： | 
NXP |
| 描述： | 8-bit bidirectional binary counter -State |
| 文件： | 总12页 (文件大小：112K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
74F1779
8-bit bidirectional binary counter (-State)
Product specification
IC15 Data Handbook
1989 Apr 06
Philips
Semiconductors
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
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 74F779 for 16-pin version with abbreviated function table
SF01259
TYPICAL
SUPPLY CURRENT
(TOTAL)
DESCRIPTION
TYPE
TYPICAL f
MAX
The 74F1779 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 pins (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.
74F1779
130MHz
100mA
ORDERING INFORMATION
COMMERCIAL RANGE
= 5V ±10%,
PACKAGE
DRAWING
NUMBER
V
amb
DESCRIPTION
CC
T
= 0°C to +70°C
16-pin Plastic DIP
16-pin Plastic SOL
N74F1779N
N74F1779D
SOT38-4
The 74F1779 differs from 74F779 in that it has an additional hold
mode as described in the Function Table.
SOT162-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
74F(U.L.)
HIGH/LOW
LOAD VALUE
PINS
DESCRIPTION
HIGH/LOW
70µA/0.6mA
3.0mA/24mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
20µA/0.6mA
1.0mA/20mA
Data inputs
Data outputs
Select 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
I/On
S0, S1
OE
Output Enable input (active Low)
Count Enable Trickle input (active Low)
Clock input (active rising edge)
CET
CP
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 Apr 06
853–1367 96245
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
LOGIC SYMBOL
FUNCTION TABLE
INPUTS
11
10
S1
OPERATING MODE
S1 S0 CET OE CP
X
X
L
X
X
L
X
X
X
H
X
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)
Hold
S0
14
15
9
CET
CP
TC
12
H
X
X
X
X
OE
(not LL)
I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7
H
H
L
H
L
16
1
2
3
5
6
7
8
V
=Pin 13
Count up
CC
GND=Pin 4
SF01260
H
L
Count down
H
L
X
↑
=
=
=
=
High voltage level
Low voltage level
Don’t care
IEC/IEEE SYMBOL
CTR DIV 256
Low-to-High clock transition
(not LL) = S0 and S1 should never be Low voltage level at the
LOAD
0
11
0
same time in the hold mode only.
DOWN
UP
—
M
10
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 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
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 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
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 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
DC ELECTRICAL CHARACTERISTICS
(Over recommended operating free-air temperature range unless otherwise noted.)
LIMITS
1
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
MAX
2
MIN
2.5
2.7
2.4
2.7
TYP
V
V
V
= MIN,
±10%V
±5%V
V
V
V
V
CC
CC
= MAX
= MIN
TC
I
I
I
= –1mA
= –3mA
= MAX
IL
OH
OH
OL
3.4
CC
IH
V
OH
High-level output voltage
V
V
V
= MIN,
±10%V
CC
IL
CC
CC
= MAX
= MIN
I/On
±5%V
3.3
0.30
0.35
–0.73
IH
V
V
V
= MIN,
±10%V
±5%V
0.50
V
CC
IL
CC
= MAX
= MIN
V
V
Low-level output voltage
Input clamp voltage
OL
0.50
–1.2
1
V
CC
IH
V
CC
V
CC
V
CC
V
CC
V
CC
= MIN, I = I
IK
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
3
I
I
Short-circuit output current
= MAX
–60
–150
145
145
155
mA
mA
mA
mA
OS
CC
I
I
I
100
100
110
CCH
CCL
CCZ
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 tests. In any sequence of
parameter tests, I tests should be performed last.
OS
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
V
= +25°C
= +5.0V
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
amb
CC
TEST
CONDITION
SYMBOL
PARAMETER
UNIT
C = 50pF, R = 500Ω
C = 50pF, R = 500Ω
L L
L
L
MIN
115
TYP
MAX
MIN
MAX
f
Maximum clock frequency
Waveform 1
Waveform 1
130
100
MHz
ns
MAX
t
t
Propagation delay
CP to I/On
4.0
5.0
6.5
7.0
10.0
10.5
4.0
5.0
10.5
11.0
PLH
PHL
t
t
Propagation delay
CP to TC
4.0
4.5
6.5
6.5
9.0
9.0
3.5
4.0
9.5
9.5
PLH
PHL
Waveform 1
Waveform 2
ns
ns
ns
ns
t
t
Propagation delay
CET to TC
2.0
2.5
4.0
4.5
6.5
7.0
2.0
2.5
7.5
7.5
PLH
PHL
t
t
Output Enable time to
High or Low level
Waveform 4
Waveform 5
2.0
4.5
4.0
6.5
6.5
9.0
2.0
4.0
7.5
9.5
PZH
PZL
t
t
Output Enable time from
High or Low level
Waveform 4
Waveform 5
1.0
1.0
3.0
4.0
6.0
7.0
1.0
1.0
6.5
7.5
PHZ
PLZ
6
1989 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
AC SETUP REQUIREMENTS
LIMITS
T
V
= +25°C
= +5.0V
T
V
= 0°C to +70°C
= +5.0V ± 10%
amb
CC
amb
CC
TEST
CONDITION
SYMBOL
PARAMETER
UNIT
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
4.0
3.5
4.5
3.5
s
Waveform 3
Waveform 3
Waveform 3
Waveform 3
Waveform 3
Waveform 3
Waveform 1
ns
ns
ns
ns
ns
ns
ns
I/O to CP
n
t (H)
Hold time, High or Low
0
0
0
0
h
t (L)
h
I/O to CP
n
t (H)
Setup time, High or Low
CET to CP
4.5
7.0
5.0
8.0
s
t (L)
s
t (H)
Hold time, High or Low
CET to CP
0
0
0
0
h
t (L)
h
t (H)
Setup time, High or Low
Sn to CP
7.5
8.5
8.0
9.5
s
t (L)
s
t (H)
Hold time, High or Low
Sn to CP
0
0
0
0
h
t (L)
h
t (H)
CP Pulse width,
High or Low
3.0
4.5
3.0
5.5
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
0V
OH
t
t
PHZ
PZH
I/On
V
M
CET
TC
V
V
M
M
SF01266
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
SF01264
OE
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 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
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 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
DIP16: plastic dual in-line package; 16 leads (300 mil)
SOT38-4
9
1989 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
SO16: plastic small outline package; 16 leads; body width 7.5 mm
SOT162-1
10
1989 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
NOTES
11
1989 Apr 06
Philips Semiconductors
Product specification
8-bit bidirectional binary counter (3-State)
74F1779
DEFINITIONS
Data Sheet Identification
Product Status
Definition
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
Objective Specification
Formative or in Design
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
Preliminary Specification
Product Specification
Preproduction Product
Full 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.
Philips Semiconductors and Philips Electronics North America Corporation reserve 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. Applications that are described herein for any of these products are for illustrative purposes
only. PhilipsSemiconductorsmakesnorepresentationorwarrantythatsuchapplicationswillbesuitableforthespecifiedusewithoutfurthertesting
or modification.
LIFE SUPPORT APPLICATIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
orsystemswheremalfunctionofaPhilipsSemiconductorsandPhilipsElectronicsNorthAmericaCorporationProductcanreasonablybeexpected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1989
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Philips
Semiconductors
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