Datasheet M74HC77TTR, M74HC77RM13TR, M74HC77M1R, M74HC77B1R Datasheet (SGS Thomson Microelectronics)

1/10August 2001

■ HIGH SPEED :

t

PD

= 11 ns (TYP.) at VCC = 6V

■ LOW POWER DISSIPATION:

I

CC

=2µA(MAX.) at TA=25°C

■ HIGH NOISE IMMUNITY:

V

NIH

= V

NIL

= 28 % VCC (MIN.)

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

OH

| = IOL = 4mA (MIN)

■ BALANCED PROPAGATION DELAYS:

t

PLH

≅ t

PHL

■ WIDE OPERATING VOLTAGE RANGE:

V

CC

(OPR) = 2V to 6V

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 77

DESCRIPTION

The M74HC77 is an hi gh speed CMOS 4 BIT D
TYPE LATCH fabricated with silicon gate C

2

MOS
technology.
It contains two groups of 2 bit latches controlled by
an enable input (G1

•2 or G3•4). These two latch

groups can be u sed in different circuit s. The dat a
applied to the d ata inpu ts (1D, 2D, or 3D, 4D) are
transferred to the Q output s (1Q, 2Q, or 3Q , 4Q)
respectively when the enable input (G1

•2 or G3•4)

is taken high. The Q outputs will follow the data
inputs as long as the enable input is kept high.
When the enable input is taken low, the
information data applied to the data input is
retained at the Q outputs.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.

M74HC77

4 BIT D TYPE LATCH

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE TUBE T & R

DIP M74HC77B1R

SOP M74HC77M1R M74HC77RM13TR

TSSOP M74HC77TTR

TSSOPDIP SOP

M74HC77

2/10

IINPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

TRUTH TABLE

X : Don’t Care

LOGIC DIAGRAM

PIN No SYMBOL NAME AND FUNCTION

1, 2, 5, 6 1D to 4D Data Inputs

3G3 • 4

Latch Enable Input,
Latches 3 and 4

7, 10 NC No Internal Connection

8, 9, 13, 14 1Q to 4Q Latch Outputs

12 G1 • 2

Latch Enable Input,
Latches 1 and 2

11 GND Ground (0V)

4

V

CC

Positive Supply Voltage

INPUTS OUTPUTS

FUNCTION

DG Q

LH L
HH H
X L Qn LATCH

M74HC77

3/10

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65

°C; derate to 300mW by 10mW/°C from 65°C to 85°C

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

CC

Supply Voltage

-0.5 to +7 V

V

I

DC Input Voltage -0.5 to VCC + 0.5

V

V

O

DC Output Voltage -0.5 to VCC + 0.5

V

I

IK

DC Input Diode Current

± 20 mA

I

OK

DC Output Diode Current

± 20 mA

I

O

DC Output Current

± 25 mA

I

CC

or I

GND

DC VCC or Ground Current

± 50 mA

P

D

Power Dissipation

500(*) mW

T

stg

Storage Temperature

-65 to +150 °C

T

L

Lead Temperature (10 sec)

300 °C

Symbol Parameter Value Unit

V

CC

Supply Voltage

2 to 6 V

V

I

Input Voltage 0 to V

CC

V

V

O

Output Voltage 0 to V

CC

V

T

op

Operating Temperature

-55 to 125 °C

t

r

, t

f

Input Rise and Fall Time VCC = 2.0V

0 to 1000 ns

V

CC

= 4.5V

0 to 500 ns

V

CC

= 6.0V

0 to 400 ns

M74HC77

4/10

DC SPECIFICATIONS

Symbol Parameter

Test Condition Value

Unit

V

CC

(V)

T

A

= 25°C

-40 to 85°C -55 to 125°C

Min. Typ. Max. Min. Max. Min. Max.

V

IH

High Level Input
Voltage

2.0 1.5 1.5 1.5
V4.5 3.15 3.15 3.15

6.0 4.2 4.2 4.2

V

IL

Low Level Input
Voltage

2.0 0.5 0.5 0.5
V4.5 1.35 1.35 1.35

6.0 1.8 1.8 1.8

V

OH

High Level Output
Voltage

2.0

IO=-20 µA

1.9 2.0 1.9 1.9

V

4.5

I

O

=-20 µA

4.4 4.5 4.4 4.4

6.0

I

O

=-20 µA

5.9 6.0 5.9 5.9

4.5

I

O

=-4.0 mA

4.18 4.31 4.13 4.10

6.0

I

O

=-5.2 mA

5.68 5.8 5.63 5.60

V

OL

Low Level Output
Voltage

2.0

IO=20 µA

0.0 0.1 0.1 0.1

V

4.5

I

O

=20 µA

0.0 0.1 0.1 0.1

6.0

I

O

=20 µA

0.0 0.1 0.1 0.1

4.5

I

O

=4.0 mA

0.17 0.26 0.33 0.40

6.0

I

O

=5.2 mA

0.18 0.26 0.33 0.40

I

I

Input Leakage
Current

6.0

V

I

= VCC or GND

± 0.1 ± 1 ± 1 µA

I

CC

Quiescent Supply
Current

6.0

V

I

= VCC or GND

22040µA

M74HC77

5/10

AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)

CAPACITIVE CHARACTERISTICS

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without

load. (R ef er to Test Circ ui t). Averag e operatin g current can be obtained by t he following equation. I

CC(opr)

= CPD x VCC x fIN + ICC/4(per

LATCH)

Symbol P arameter

Test Condition Value

Unit

V

CC

(V)

T

A

= 25°C

-40 to 85°C -55 to 125°C

Min. Typ. Max. Min. Max. Min. Max.

t

TLH tTHL

Output Transition
Time

2.0 30 75 95 110

ns4.5 8151922

6.0 7131619

t

PLH tPHL

Propagation Delay
Time (D - Q)

2.0 39 100 125 150

ns4.5 13 20 25 30

6.0 11 17 21 26

t

PLH tPHL

Propagation Delay
Time (G-Q)

2.0 39 100 125 150

ns4.5 13 20 25 30

6.0 11 17 21 26

t

W(H)

Minimum Pulse
Width (G)

2.0 15 75 95 110

ns4.5 6151922

6.0 6131619

t

s

Minimum Set-up
Time

2.0 15 50 65 75

ns4.5 3101315

6.0 3 9 11 13

t

h

Minimum Hold
Time

2.0 25 30 40

ns4.5 5 6 8

6.0 4 5 7

Symbol Parameter

Test Condition Value

Unit

V

CC

(V)

T

A

= 25°C

-40 to 85°C -55 to 125°C

Min. Typ. Max. Min. Max. Min. Max.

C

IN

Input Capacitance

5.0 5101010pF

C

PD

Power Dissipation
Capacitance (note 1)5.0 20 pF

M74HC77

6/10

TEST CIRCUIT

CL = 50pF or equivalent (in cludes jig and probe capaci tance)
R

T

= Z

OUT

of pulse generator (typically 50Ω)

WAVEFORM : PROPAGATION DELAY, MINIMUM PULSE WIDTH, SETUP AND HOLD TIME (f=1MHz;
50% duty cycle)

M74HC77

7/10

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

a1 0.51 0.020

B 1.39 1.65 0.055 0.065
b 0.5 0.020

b1 0.25 0.010

D 20 0.787
E 8.5 0.335

e 2.54 0.100

e3 15.24 0.600

F 7.1 0.280

I 5.1 0.201

L 3.3 0.130

Z 1.27 2.54 0.050 0.100

Plastic DIP-14 MECHANICAL DATA

P001A

M74HC77

8/10

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. M AX.

A 1.75 0.068
a1 0.1 0.2 0.003 0.007
a2 1.65 0.064

b 0.35 0.46 0.013 0.018

b1 0.19 0.25 0.007 0.010

C 0.5 0.019
c1 45° (typ.)

D 8.55 8.75 0.336 0.344

E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 7.62 0.300

F 3.8 4.0 0.149 0.157

G 4.6 5.3 0.181 0.208

L 0.5 1.27 0.019 0.050

M 0.68 0.026

S8° (max.)

SO-14 MECHANICAL DATA

PO13G

M74HC77

9/10

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. M AX.

A 1.2 0.047

A1 0.05 0.15 0.002 0.004 0.006

A2 0.8 1 1.05 0.031 0.039 0.041

b 0.19 0.30 0.007 0.012

c 0.09 0.20 0.004 0.0089

D 4.9 5 5.1 0.193 0.197 0.201

E 6.2 6.4 6.6 0.244 0.252 0.260

E1 4.3 4.4 4.48 0.169 0.173 0.176

e 0.65 BSC 0.0256 BSC

K0° 8°0° 8°

L 0.45 0.60 0.75 0.018 0.024 0.030

TSSOP14 MECHANICAL DATA

c

E

b

A2

A

E1

D

1

PIN 1 IDENTIFICATION

A1

L

K

e

0080337D

M74HC77

10/10

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