Datasheet N74F779N, N74F779D Datasheet (Philips)

INTEGRATED CIRCUITS

74F779

8-bit bidirectional binary counter (3-State)

Product specification
IC15 Data Handbook

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1989 Sep 20

Philips Semiconductors Product specification

I/On

74F7798-bit bidirectional binary counter (3-State)

FEA TURES

•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

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
are held in their current state and TC
not recommended for use as a clock or asynchronous reset due to
the possibility of decoding spikes.

is High the data outputs

is held High. The TC output is

PIN CONFIGURATION

1I/O1 I/O0

I/O2

2

I/O3

3

GND

4

I/O4

5

I/O5

6

I/O6

7

I/O7

TYPE TYPICAL f

MAX

74F779 145MHz 90mA

16

CP

15

CET

14

V

13

CC

TC

12

S0

11

S1

10

OE

98

TYPICAL

SUPPLY CURRENT

(TOTAL)

ORDERING INFORMATION

COMMERCIAL RANGE

DESCRIPTION

16-Pin Plastic DIP N74F779N SOT38-4

16-Pin Plastic SOL N74F779D SOT 162-1

VCC = 5V ±10%,

T

= 0°C to +70°C

amb

PKG DWG #

SF01259

INPUT AND OUTPUT LOADING AND FAN-OUT TABLE

PINS DESCRIPTION

74F(U.L.)

HIGH/LOW

Data inputs 3.5/1.0 70µA/0.6mA

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
TC Terminal Count output (active Low) 50/33 1.0mA/20mA

NOTE:

One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.

LOAD VALUE

HIGH/LOW

1989 Sep 20 853–0385 97676

2

Philips Semiconductors Product specification

74F7798-bit bidirectional binary counter (3-State)

LOGIC SYMBOL

11 10

S0 S1

=Pin 13

V

CC

GND=Pin 4

14OECET
15

CP

9

I/O0 I/O1 I/O2 I/O3 I/O4 I/O5 I/O6 I/O7

161235678

LOGIC SYMBOL (IEEE/IEC)

CTR DIV 256

11

0

10

1

14
15

EN4
2 +/C5
1–

9

EN6

0

—

M

3

LOAD
DOWN
UP
HOLD

[1]
[2]
[4]

[8]
[16]
[32]
[64]

[128]

4, 5, 8 CT=256

4, 5, 8 CT=0

6

16

1
2

3
5
6
7
8

SF01261

12

SF01260

FUNCTION TABLE

INPUTS OPERATING MODE

S1 S0 CET OE CP

X X X H X I/O0 to I/O7 in High impedance

12TC

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.

1989 Sep 20

3

Philips Semiconductors Product specification

74F7798-bit bidirectional binary counter (3-State)

LOGIC DIAGRAM

11

OE

S0

10

S1

9

16

I/O0

LOAD CONTROL

UP

DOWN

DETAIL A

CP

15

I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

1

2

3

5

6

7

8

DETAIL A

DETAIL A

DETAIL A

DETAIL A

DETAIL A

DETAIL A

DETAIL A

V

=Pin 13

CC

GND=Pin 4

1989 Sep 20

CET

14

12

TC

DETAIL A

CP

D

Q

CP

Q

SF01262

TOGGLE

DATA

LOAD

Q
Q

4

Philips Semiconductors Product specification

I

Current applied to output in Low output state

SYMBOL

PARAMETER

UNIT

IOHHigh-level output current

IOLLow-level output current

74F7798-bit bidirectional binary counter (3-State)

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

V
V
I

IN

V

OUT

T
T

CC
IN

OUT

amb
stg

Supply voltage –0.5 to +7.0 V
Input voltage –0.5 to +7.0 V
Input current –30 to +5 mA
Voltage applied to output in High output state –0.5 to V

pp

p

Operating free-air temperature range 0 to +70 °C
Storage temperature –65 to +150 °C

RECOMMENDED OPERATING CONDITIONS

V
V
V
I

T

CC
IH
IL

IK

amb

Supply voltage 4.5 5.0 5.5 V
High-level input voltage 2.0 V
Low-level input voltage 0.8 V
Input clamp current –18 mA

p

p

Operating free-air temperature range 0 70 °C

PARAMETER RATING UNIT

CC

p

TC 40 mA
I/On 48 mA

LIMITS

MIN NOM MAX

TC –1 mA
I/On –3 mA
TC 20 mA
I/On 24 mA

V

1989 Sep 20

5

Philips Semiconductors Product specification

NO TAG

TC

V

MAX

I

1mA

VOHHigh-level output voltage

I/On

V

MAX

I

3mA

VOLLow-level output voltage

V

MAX

I

MAX

I

I/On

74F7798-bit bidirectional binary counter (3-State)

DC ELECTRICAL CHARACTERISTICS

(Over recommended operating free-air temperature range unless otherwise noted.)

LIMITS

SYMBOL PARAMETER TEST CONDITIONS

MIN

TYP

NO TAG

MAX

UNIT

V

IK

I

I

IH

I

IL

IIH+I

IIL+I

I

OS

I

CC

OZH

OZL

VCC = MIN,

=

IL

p

VIH = MIN
VCC = MIN,

=

IL

VIH = MIN
VCC = MIN,

p

=

IL

VIH = MIN
Input clamp voltage VCC = MIN, II = I
Input current at maximum

input voltage
High-level input current

Low-level input current
Off-state output current

High-level voltage applied
Off-state output current

Low-level voltage applied
Short-circuit output current

Supply current (total)

I/On 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

VCC = MAX, VO = 0.5V –600 µA

NO TAG

I

CCH

I

CCL

I

CCZ

VCC = MAX –60 –150 mA

VCC = MAX

OH

OH

OL

= –

= –

=

IK

±10%V

±5%V

±10%V

±5%V

±10%V

±5%V

CC

CC

CC

CC

CC

CC

2.5 V

2.7 3.4 V

2.4 V

2.7 3.3 V

0.30 0.50 V

0.35 0.50 V

–0.73 –1.2 V

82 116 mA
91 128 mA
97 136 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

3. Not more than one output should be shorted at a time. For testing I

CC

= 5V, T

techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting

amb

= 25°C.

, the use of high-speed test apparatus and/or sample-and-hold

OS

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

SYMBOL PARAMETER TEST CONDITIONS

f

MAX

t

PLH

t

PHL

t

PLH

t

PHL

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

1989 Sep 20

LIMITS

T

= +25°C

amb

VCC = +5V

CL = 50pF, RL = 500Ω

T

= 0°C to +70°C

amb

VCC = +5V ± 10%

CL = 50pF, RL = 500Ω

UNIT

MIN TYP MAX MIN MAX

Maximum clock frequency Waveform 1 125 145 115 MHz
Propagation delay

CP to I/On
Propagation delay

CP to TC
Propagation delay

CET to TC
Output Enable time to

High or Low level
Output Enable time from

High or Low level

Waveform 1

Waveform 1

Waveform 2
Waveform 4

Waveform 5
Waveform 4

Waveform 5

4.5

5.5

4.5

4.5

3.0

3.0

2.5

4.5

1.0

1.0

7.0

8.0

7.0

7.0

4.5

5.5

4.5

6.5

3.0

4.0

10.5

10.5

9.0

9.0

6.5

7.5

7.0

9.0

6.5

7.0

4.5

5.5

4.5

4.5

2.5

2.5

2.5

4.5

1.0

1.0

11.0

11.0

10.0

10.0

7.5

8.0

8.0

9.5

8.0

8.0

ns
ns

ns
ns

ns
ns

ns
ns

ns
ns

6

Philips Semiconductors Product specification

74F7798-bit bidirectional binary counter (3-State)

AC SETUP REQUIREMENTS

LIMITS

T

SYMBOL PARAMETER TEST CONDITIONS

ts(H)
t

(L)

s

th(H)
th(L)

ts(H)
ts(L)

th(H)
th(L)

ts(H)
ts(L)

th(H)
th(L)

tw(H)
tw(L)

Setup time, High or Low
I/O

to CP

n

Hold time, High or Low
I/On to CP

Setup time, High or Low
CET to CP

Hold time, High or Low
CET to CP

Setup time, High or Low
Sn to CP

Hold time, High or Low
Sn to CP

CP Pulse width,
High or Low

Waveform 3

Waveform 3

Waveform 3

Waveform 3

Waveform 3

Waveform 3

Waveform 1

= +25°C

amb

VCC = +5V

CL = 50pF, RL = 500Ω

MIN TYP MAX MIN MAX

5.0

5.0

1.0

1.0

5.0

5.5
0

0

8.0

8.0
0

0

4.0

4.0

T

= 0°C to +70°C

amb

VCC = +5V ± 10%

CL = 50pF, RL = 500Ω

5.0

5.0

1.0

1.0

5.0

6.0
0

0

8.5

8.5
0

0

4.0

4.0

UNIT

ns
ns

ns
ns

ns
ns

ns
ns

ns
ns

ns
ns

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/f

MAX

CP

I/On

TC

t

t

PLH

PHL

V

M

tW(H)

V

M

V

M

tW(L)

t

t

PHL

PLH

V

M

V

V

Waveform 1. Propagation Delay, Clock Input to Output,

Clock Pulse Width, and Maximum Clock Frequency

CET

V

M

t

PHL

TC

V

V

M

t

PLH

M

V

M

SF01264

Waveform 2. Propagation Delay CET Input to

Terminal Count Output

M

M

SF01263

Sn, I/On,

CET

CP

V

M

ts(H) ts(L)

V

Waveform 3. Data Setup and Hold Times

OE

I/On

V

M

t

PZH

Waveform 4. 3-State Output Enable Time to High Level and

Output Disable Time from High Level

OE

I/On

V

M

t

PZL

PHZ

t

V

V

M

M

th(L)th(H)

V

M

SF01265

M

VOH -0.3V

0V

SF01266

V

M

PLZ

3.5V

V

M

M

V

t

V

M

V

M

1989 Sep 20

VOL +0.3V

SF01267

Waveform 5. 3-State Output Enable Time to Low Level and

Output Disable Time from Low Level

7

Philips Semiconductors Product specification

74F7798-bit bidirectional binary counter (3-State)

TEST CIRCUIT AND WAVEFORMS

V

V

PULSE

GENERATOR

IN

R

Test Circuit for 3-State Outputs

SWITCH POSITION

TEST SWITCH

t
t

PLZ
PZL

closed
closed

All other open

T

D.U.T.

CC

V

OUT

7.0V

R

L

R

C

L

L

NEGATIVE
PULSE

POSITIVE
PULSE

90%

10%

V

M

10%

t

THL (tf

t

TLH (tr

90%

V

M

Input Pulse Definition

t

w

V

M

10%

)

)

t

w

t

TLH (tr

t

THL (tf

)

)

90%

V

M

90%

10%

AMP (V)

0V

AMP (V)

0V

DEFINITIONS:

R

= Load resistor;

L

see AC electrical characteristics for value.

= Load capacitance includes jig and probe capacitance;

C

L

see AC electrical characteristics for value.

R

= Termination resistance should be equal to Z

T

pulse generators.

OUT

of

family

74F

INPUT PULSE REQUIREMENTS

V

amplitude

3.0V

M

1.5V

rep. rate

1MHz 500ns

t

w

t

TLHtTHL

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) SOT38-4

74F779

1989 Sep 20

9

Philips Semiconductors Product specification

8-bit bidirectional binary counter (3-State)

SO16: plastic small outline package; 16 leads; body width 7.5 mm SOT162-1

74F779

1989 Sep 20

10

Philips Semiconductors Product specification

8-bit bidirectional binary counter (3-State)

NOTES

74F779

1989 Sep 20

11

Philips Semiconductors Product specification

8-bit bidirectional binary counter (3-State)

Data sheet status

Data sheet
status

Objective
specification

Preliminary
specification

Product
specification

Product
status

Development

Qualification

Production

Definition

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.

[1]

74F779

[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.

Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone [phone]

 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: 9397-750-05179

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