MOTOROLA MC74LCX574SD, MC74LCX574MEL, MC74LCX574ML2, MC74LCX574DWR2, MC74LCX574DTEL Datasheet

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Low-Voltage CMOS

Octal D-Type Flip-Flop

Flow Through Pinout

With 5V-Tolerant Inputs and Outputs

(3-State, Non-Inverting)

The MC74LCX574 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 MC74LCX574 inputs to be safely driven from 5V devices.

The MC74LCX574 consists of 8 edge±triggered flip±flops with 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 state. The OE input level does not affect the operation of the flip±flops. The LCX574 flow through design facilitates easy PC board layout.

•Designed for 2.7 to 3.6V VCC Operation

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

•Supports Live Insertion and Withdrawal

•IOFF Specification Guarantees High Impedance When VCC = 0V

•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: 20±Lead (Top View)

VCC O0

O1

O2

O3

O4

O5

O6

O7

CP

MC74LCX574

LOW±VOLTAGE CMOS OCTAL D±TYPE FLIP±FLOP

		DW SUFFIX
20		PLASTIC SOIC
		CASE 751D±04
	1
		M SUFFIX
20		PLASTIC SOIC EIAJ
		CASE 967±01
	1
		SD SUFFIX
20		PLASTIC SSOP
	1	CASE 940C±03
20		DT SUFFIX
		PLASTIC TSSOP
	1	CASE 948E±02

	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
																									O0±O7		3±State Outputs
	1				2		3		4		5		6		7		8		9		10
		OE			D0		D1		D2		D3		D4		D5		D6		D7	GND

9/95

Motorola, Inc. 1996

1

REV 2

MC74LCX574

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

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

				MC74LCX574
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