ST M74HC377 User Manual

M74HC377

OCTAL D TYPE FLIP FL O P

■ HIGH SPEED :

f

= 66 MHz (TYP.) at VCC = 6V

MAX

■ LOW POWER DISSIPATION:

I

=4µA(MAX.) at TA=25°C

CC

■ HIGH NOISE IMMUNITY:

V

= V

NIH

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

| = IOL = 4mA (MIN)

OH

■ BALANCED PROPAGATION DELAYS:

t

≅ t

PLH

■ WIDE OPERATING VOLTAGE RANGE:

V

(OPR) = 2V to 6V

CC

■ PIN AND FUNCTION COMPATIBLE WITH

= 28 % VCC (MIN.)

NIL

PHL

74 SERIES 377

DESCRIPTION

The M74HC377 is an high speed CMOS OCTAL
D TYPE FLIP FLOP fabricated with silicon gate

2

MOS technology.

C
Information at the D inputs meeting the setup time
requirements is transferred to the Q outputs on the
positive going edge of the clock pulse if the enable
input G

is low. Clock triggering occurs at a

particular voltage level and is not directly related

TSSOPDIP SOP

ORDER CODES

PACKAGE TUBE T & R

DIP M74HC377B1R

SOP M74HC377M1R M74HC377RM13TR

TSSOP M74HC377TTR

to the transition time of the positive going pulse.
When the clock input is at either the high or low
level, the D input signal has no effect at the output.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

1/11July 2001

M74HC377

INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1 G

2, 5, 6, 9, 12,

15, 16, 19

3, 4, 7, 8, 13,

14, 17, 18

11 CLOCK
10 GND Ground (0V)

20 Vcc Positive Supply Voltage

TRUTH TABLE

INPUTS OUTPUTS

1Q to 8Q Flip Flop Outputs

1D to 8D Data Inputs

Data Enable Input (Active
LOW)

Clock Input (LOW to
HIGH, Edge Triggered)

G

H X X NO CHANGE

LLL
LHH

X X NO CHANGE

X : Don’t Care

LOGIC DIAGRAM

CLOCK DATA Q

This log i c diagram has not be used to est i m at e propagation delays

2/11

M74HC377

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V

V

I

I

OK

I

I

or I

CC

P

T

T

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

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V

V

T

t

r

Supply Voltage

CC

DC Input Voltage -0.5 to VCC + 0.5

I

DC Output Voltage -0.5 to VCC + 0.5

O

DC Input Diode Current

IK

DC Output Diode Current
DC Output Current

O

DC VCC or Ground Current

GND

Power Dissipation

D

Storage Temperature

stg

Lead Temperature (10 sec)

L

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

Supply Voltage

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature

op

Input Rise and Fall Time VCC = 2.0V

, t

f

V
V

CC
CC

= 4.5V
= 6.0V

-0.5 to +7 V

± 20 mA
± 20 mA
± 25 mA
± 50 mA

500(*) mW

-65 to +150 °C

300 °C

2 to 6 V

CC
CC

-55 to 125 °C
0 to 1000 ns

0 to 500 ns
0 to 400 ns

V
V

V
V

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M74HC377

DC SPECIFICATIONS

Symbol Parameter

V

V

V

V

I

High Level Input

IH

Voltage

Low Level Input

IL

Voltage

High Level Output

OH

Voltage

Low Level Output

OL

Voltage

I

Input Leakage

I

Current
Quiescent Supply

CC

Current

Test Condition Value

V

(V)

CC

= 25°C

A

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

-40 to 85°C -55 to 125°C

T

2.0 1.5 1.5 1.5

6.0 4.2 4.2 4.2

2.0 0.5 0.5 0.5

6.0 1.8 1.8 1.8

2.0

4.5

6.0

4.5

6.0

2.0

4.5

6.0

4.5

6.0

6.0

6.0

IO=-20 µA
I

=-20 µA

O

I

=-20 µA

O

I

=-4.0 mA

O

I

=-5.2 mA

O

IO=20 µA
I

=20 µA

O

I

=20 µA

O

I

=4.0 mA

O

I

=5.2 mA

O

= VCC or GND

V

I

= VCC or GND

V

I

1.9 2.0 1.9 1.9

4.4 4.5 4.4 4.4

5.9 6.0 5.9 5.9

4.18 4.31 4.13 4.10

5.68 5.8 5.63 5.60

0.0 0.1 0.1 0.1

0.0 0.1 0.1 0.1

0.0 0.1 0.1 0.1

0.17 0.26 0.33 0.40

0.18 0.26 0.33 0.40
± 0.1 ± 1 ± 1 µA

44080µA

Unit

V4.5 3.15 3.15 3.15

V4.5 1.35 1.35 1.35

V

V

4/11