MOTOROLA MC74LCX374DW, MC74LCX374DWR2, MC74LCX374DTEL, MC74LCX374MEL, MC74LCX374ML1 Datasheet

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Low-Voltage	CMOS		MC74LCX374
Octal D-Type Flip-Flop
With 5V-Tolerant	Inputs and Outputs
(3-State, Non-Inverting)
The MC74LCX374 is a high performance, non±inverting octal D±type
flip±flop operating 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 VI specification of 5.5V allows MC74LCX374 inputs to be			LOW±VOLTAGE CMOS
safely driven from 5V devices.
The MC74LCX374 consists of	8 edge±triggered flip±flops with	OCTAL D±TYPE FLIP±FLOP
individual D±type inputs and 3±state true outputs. The buffered clock and
buffered Output Enable (OE) are common to all flip±flops. The eight
flip±flops will store the state of individual D inputs that meet the setup and
hold time requirements on the LOW±to±HIGH Clock (CP) transition. With
the OE LOW, the contents of the eight flip±flops are available at the
outputs. When the OE is HIGH, the outputs go to the high impedance			DW SUFFIX
state. The OE input level does not affect the operation of the flip±flops.
		20	PLASTIC SOIC
			CASE 751D±04
			1

•Designed for 2.7 to 3.6V VCC Operation

•5V Tolerant Ð Interface Capability With 5V TTL Logic

• Supports Live Insertion and Withdrawal		M SUFFIX
• IOFF Specification Guarantees High Impedance When VCC = 0V	20	PLASTIC SOIC EIAJ
		CASE 967±01
• LVTTL Compatible
		1

•LVCMOS Compatible

•24mA Balanced Output Sink and Source Capability

•

μ

SD SUFFIX

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

PLASTIC SSOP

Substantially Reduces System Power Requirements

20

• Latchup Performance Exceeds 500mA

1

CASE 940C±03

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

20

DT SUFFIX

PLASTIC TSSOP

1

CASE 948E±02

Pinout: 20±Lead (Top View)

VCC

O7

D7

D6

O6

O5

D5

D4

O4

CP

20

19

18

17

16

15

14

13

12

11

PIN NAMES

Pins

Function

OE

Output Enable Input

CP

Clock Pulse Input

D0±D7

Data Inputs

1

2

3

4

5

6

7

9

O0±O7

3±State Outputs

8

10

OE

O0

D0

D1

O1

O2

D2

D3

O3

GND

11/96

Motorola, Inc. 1996

1

REV 3

MC74LCX374

		LOGIC DIAGRAM
	1
	OE
	11
	CP
		nCP	2
	3	Q	O0
	D0	D
		nCP	5
	4	Q	O1
	D1	D
		nCP	6
	7	Q	O2
	D2	D
		nCP	9
	8	Q	O3
	D3	D
		nCP	12
	13	Q	O4
	D4	D
		nCP	15
	14		O5
		Q
	D5	D
		nCP	16
	17	Q	O6
	D6	D
		nCP	19
	18	Q	O7
	D7	D

			INPUTS		OUTPUTS
	OE		CP	Dn	On	OPERATING MODE
	L		↑	l	L	Load and Read Register
	L		↑	h	H
	L		↑	X	NC	Hold and Read Register
	H		↑	X	Z	Hold and Disable Outputs
	H		↑	l	Z	Load Internal Register and Disable Outputs
	H		↑	h	Z

H = High Voltage Level; h = High Voltage Level One Setup Time Prior to the Low±to±High Clock Transition; L = Low Voltage Level; l = Low Voltage Level One Setup Time Prior to the Low±to±High Clock Transition; NC = No Change, State Prior to Low±to±High Clock Transition; X = High or Low Voltage Level and Transitions are Acceptable; Z = High Impedance State; ↑ = Low±to±High Transition; ↑ = Not a Low±to±High Transition; For ICC Reasons DO NOT FLOAT Inputs

MOTOROLA

2

LCX DATA

BR1339 Ð REV 3

				MC74LCX374
ABSOLUTE MAXIMUM RATINGS*
Symbol	Parameter	Value	Condition		Unit
VCC	DC Supply Voltage	±0.5 to +7.0			V
VI	DC Input Voltage	±0.5 ≤ VI ≤ +7.0			V
VO	DC Output Voltage	±0.5 ≤ VO ≤ +7.0	Output in 3±State		V
		±0.5 ≤ VO ≤ VCC + 0.5	Note 1.		V
IIK	DC Input Diode Current	±50	VI < GND		mA
IOK	DC Output Diode Current	±50	VO < GND		mA
		+50	VO > VCC		mA
IO	DC Output Source/Sink Current	±50			mA
ICC	DC Supply Current Per Supply Pin	±100			mA
IGND	DC Ground Current Per Ground Pin	±100			mA
TSTG	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
VCC	Supply Voltage	Operating	2.0	3.3	3.6	V
		Data Retention Only	1.5	3.3	3.6
VI	Input Voltage		0		5.5	V
VO	Output Voltage	(HIGH or LOW State)	0		VCC	V
		(3±State)	0		5.5
IOH	HIGH Level Output Current, VCC = 3.0V ± 3.6V				±24	mA
IOL	LOW Level Output Current, VCC = 3.0V ± 3.6V				24	mA
IOH	HIGH Level Output Current, VCC = 2.7V ± 3.0V				±12	mA
IOL	LOW Level Output Current, VCC = 2.7V ± 3.0V				12	mA
TA	Operating Free±Air Temperature		±40		+85	°C
t/ V	Input Transition Rise or Fall Rate, VIN from 0.8V to 2.0V,		0		10	ns/V
	VCC = 3.0V

DC ELECTRICAL CHARACTERISTICS

			TA = ±40°C to +85°C
Symbol	Characteristic	Condition	Min	Max	Unit
VIH	HIGH Level Input Voltage (Note 2.)	2.7V ≤ VCC ≤ 3.6V	2.0		V
VIL	LOW Level Input Voltage (Note 2.)	2.7V ≤ VCC ≤ 3.6V		0.8	V
VOH	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
VOL	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.

LCX DATA	3	MOTOROLA
BR1339 Ð REV 3