MOTOROLA MC74LCX74DR2, MC74LCX74ML1, MC74LCX74MEL, MC74LCX74DTR2, MC74LCX74ML2 Datasheet

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SEMICONDUCTOR TECHNICAL DATA

1

REV 1

 Motorola, Inc. 1996

11/96

!  
  " 

   

The MC74LCX74 is a high performance, dual D–type flip–flop with

asynchronous clear and set inputs and complementary (O, O

) outputs. It
operates from a 2.7 to 3.6V supply. High impedance TTL compatible
inputs significantly reduce current loading to input drivers while TTL
compatible outputs offer improved switching noise performance. A V

I

specification of 5.5V allows MC74LCX74 inputs to be safely driven from
5V devices.

The MC74LCX74 consists of 2 edge–triggered flip–flops with
individual D–type inputs. The flip–flop will store the state of individual D
inputs, that meet the setup and hold time requirements, on the
LOW–to–HIGH Clock (CP) transition.

• Designed for 2.7 to 3.6V V

CC

Operation

• 5V T olerant Inputs — Interface Capability With 5V TTL Logic

• LVTTL Compatible

• LVCMOS Compatible

• 24mA Balanced Output Sink and Source Capability

• Near Zero Static Supply Current in All Three Logic States (10µA)

Substantially Reduces System Power Requirements

• Latchup Performance Exceeds 500mA

• ESD Performance: Human Body Model >2000V; Machine Model >200V

Pinout: 14–Lead (Top View)

1314 12 11 10 9 8

21 34567

VCCCD

2 D2 CP2 SD2O2 O2

CD

1 D1 CP1 SD1O1 O1 GND

DT SUFFIX

PLASTIC TSSOP

CASE 948G–01

14

1

SD SUFFIX

PLASTIC SSOP
CASE 940A–03

14

1

M SUFFIX

PLASTIC SOIC EIAJ

CASE 965–01

14

1

D SUFFIX

PLASTIC SOIC

CASE 751A–03

14

1

PIN NAMES

Function

Clock Pulse Inputs
Data Inputs
Direct Clear Inputs
Direct Set Inputs
Outputs

Pins

CP1, CP2

D1, D2

CD

1, CD2

SD1, SD2

On, O

n



LOW–VOLTAGE CMOS

DUAL D–TYPE FLIP–FLOP

MC74LCX74

MOTOROLA LCX DATA

BR1339 — REV 3

2

LOGIC DIAGRAM

O1

SD1

Q

4

5

D1 D

2

CP1 CP

3

CD1

1

O

1

Q

6

SD

CD

O2

SD2

Q

10

9

D2 D

12

CP2 CP

11

CD2

13

O

2

Q

8

SD

CD

INPUTS OUTPUTS

SDn CDn CPn Dn On On

OPERATING MODE

L
H

H
L

X
X

X
X

H
L

L
H

Asynchronous Set

Asynchronous Clear
L L X X H H Undetermined
H

H

H
H

↑
↑

h

l

H
L

L
H

Load and Read Register

H H ↑ X NC NC Hold

H = High Voltage Level; h = High V oltage Level One Setup T ime Prior to the Low–to–High Clock Transition; L = Low Voltage Level; l = Low
Voltage Level One Setup T ime Prior to the Low–to–High Clock T ransition; NC = No Change; X = High or Low Voltage Level or Transitions
are Acceptable; ↑ = Low–to–High T ransition; ↑

= Not a Low–to–High Transition; For ICC Reasons DO NOT FLOAT Inputs

MC74LCX74

LCX DATA
BR1339 — REV 3

3 MOTOROLA

ABSOLUTE MAXIMUM RATINGS*

Symbol Parameter Value Condition Unit

V

CC

DC Supply Voltage –0.5 to +7.0 V

V

I

DC Input Voltage –0.5 ≤ VI ≤ +7.0 V

V

O

DC Output Voltage –0.5 ≤ VO ≤ VCC + 0.5 Note 1. V

I

IK

DC Input Diode Current –50 VI < GND mA

I

OK

DC Output Diode Current –50 VO < GND mA

+50 VO > V

CC

mA

I

O

DC Output Source/Sink Current ±50 mA

I

CC

DC Supply Current Per Supply Pin ±100 mA

I

GND

DC Ground Current Per Ground Pin ±100 mA

T

STG

Storage Temperature Range –65 to +150 °C

* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or

conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is
not implied.

1. Output in HIGH or LOW State. IO absolute maximum rating must be observed.

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Min Typ Max Unit

V

CC

Supply Voltage Operating

Data Retention Only

2.0

1.5

3.3

3.3

3.6

3.6

V

V

I

Input Voltage 0 5.5 V

V

O

Output Voltage (HIGH or LOW State) 0 V

CC

V

I

OH

HIGH Level Output Current, VCC = 3.0V – 3.6V –24 mA

I

OL

LOW Level Output Current, VCC = 3.0V – 3.6V 24 mA

I

OH

HIGH Level Output Current, VCC = 2.7V – 3.0V –12 mA

I

OL

LOW Level Output Current, VCC = 2.7V – 3.0V 12 mA

T

A

Operating Free–Air Temperature –40 +85 °C

∆t/∆V Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V ,

VCC = 3.0V

0 10 ns/V

DC ELECTRICAL CHARACTERISTICS

TA = –40°C to +85°C

Symbol Characteristic Condition Min Max Unit

V

IH

HIGH Level Input Voltage (Note 2.) 2.7V ≤ VCC ≤ 3.6V 2.0 V

V

IL

LOW Level Input Voltage (Note 2.) 2.7V ≤ VCC ≤ 3.6V 0.8 V

V

OH

HIGH Level Output Voltage 2.7V ≤ VCC ≤ 3.6V; IOH = –100µA VCC– 0.2 V

VCC = 2.7V; IOH = –12mA 2.2
VCC = 3.0V; IOH = –18mA 2.4
VCC = 3.0V; IOH = –24mA 2.2

V

OL

LOW Level Output Voltage 2.7V ≤ VCC ≤ 3.6V; IOL = 100µA 0.2 V

VCC = 2.7V; IOL= 12mA 0.4
VCC = 3.0V; IOL = 16mA 0.4
VCC = 3.0V; IOL = 24mA 0.55

2. These values of VI are used to test DC electrical characteristics only.