ST 74LVC14A User Manual

74LVC14A

LOW VOLTAGE CMOS HEX INVERTER HIGH PERFORMANCE

■5V TOLERANT INPUTS

■HIGH SPEED: tPD = 5.0ns (MAX.) at VCC = 3V

■POWER DOWN PROTECTION ON INPUTS AND OUTPUTS

■SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 24mA (MIN) at VCC = 3V

■PCI BUS LEVELS GUARANTEED AT 24 mA

■BALANCED PROPAGATION DELAYS: tPLH tPHL

■OPERATING VOLTAGE RANGE:

VCC(OPR) = 1.65V to 3.6V (1.2V Data Retention)

■PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 00

SOP TSSOP

Table 1: Order Codes

PACKAGE	T & R
SOP	74LVC14AMTR
TSSOP	74LVC14ATTR

■LATCH-UP PERFORMANCE EXCEEDS 500mA (JESD 17)

■ESD PERFORMANCE:

HBM > 2000V (MIL STD 883 method 3015); MM > 200V

DESCRIPTION

The 74LVC14A is a low voltage CMOS HEX SCHMITT INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for 1.65 to 3.6 VCC operations and low power and low noise applications.

It can be interfaced to 5V signal environment for inputs in mixed 3.3/5V system.

It has more speed performance at 3.3V than 5V AC/ACT family, combined with a lower power consumption.

Pin configuration and function are the same as those of the 74LVC04A but the 74LVC14A has hysteresis between the positive and negative input threshold typically of 700mV.

All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.

Figure 1: Pin Connection And IEC Logic Symbols

July 2004	Rev. 7
	1/12

74LVC14A

Figure 2: Input And Output Equivalent Circuit

Table 2: Pin Description

	PIN N°	SYMBOL	NAME AND FUNCTION
	1,3,5,9,11,13	1A to 6A	Data Inputs
	2, 4, 6, 8,	1Y to 6Y	Data Outputs
	10, 12
	7	GND	Ground (0V)
	14	VCC	Positive Supply Voltage

Table 3: Truth Table

A	Y
L	H
H	L

Table 4: Absolute Maximum Ratings

Symbol	Parameter	Value		Unit
VCC	Supply Voltage	-0.5 to +7.0		V
VI	DC Input Voltage	-0.5 to +7.0		V
VO	DC Output Voltage (VCC = 0V)	-0.5 to +7.0		V
VO	DC Output Voltage (High or Low State) (note 1)	-0.5 to VCC + 0.5		V
IIK	DC Input Diode Current	- 50		mA
IOK	DC Output Diode Current (note 2)	- 50		mA
IO	DC Output Current	±	50	mA
ICC or IGND	DC VCC or Ground Current per Supply Pin	±	100	mA
Tstg	Storage Temperature	-65 to +150		°C
TL	Lead Temperature (10 sec)	300		°C

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied

1)IO absolute maximum rating must be observed

2)VO < GND

2/12

				74LVC14A
Table 5: Recommended Operating Conditions
Symbol	Parameter	Value			Unit
VCC	Supply Voltage (note 1)	1.65 to 3.6			V
VI	Input Voltage	0 to 5.5			V
VO	Output Voltage (VCC = 0V)	0 to 5.5			V
VO	Output Voltage (High or Low State)	0 to VCC			V
IOH, IOL	High or Low Level Output Current (VCC = 3.0 to 3.6V)	±	24		mA
IOH, IOL	High or Low Level Output Current (VCC = 2.7 to 3.0V)	±	12		mA
IOH, IOL	High or Low Level Output Current (VCC = 2.3 to 2.7V)	±	8		mA
IOH, IOL	High or Low Level Output Current (VCC = 1.65 to 2.3V)	±	4		mA
Top	Operating Temperature	-55 to 125			°C
dt/dv	Input Rise and Fall Time (note 2)	0 to 10			ns/V

1)Truth Table guaranteed: 1.2V to 3.6V

2)VIN from 0.8V to 2V at VCC = 3.0V

3/12

74LVC14A

Table 6: DC Specifications

		Test Condition								Value
Symbol	Parameter	VCC					-40 to 85 °C					-55 to 125 °C				Unit
		(V)					Min.		Max.			Min.			Max.
VT+	Positive Input	1.65 to 1.95					0.6		1.4		0.6				1.4
	threshold	2.3 to 2.7					0.8		2.0		0.8				2.0	V
		3.0					0.8		2.0		0.8				2.0
		3.6					0.8		2.2		0.8				2.2
VT-	Negative Input	1.65 to 1.95					0.3		1.0		0.3				1.0
	threshold	2.3 to 2.7					0.4		1.4		0.4				1.4	V
		3.0					0.6		1.5		0.6				1.5
		3.6					0.8		1.8		0.8				1.8
VH	Hysteresis Voltage	1.65 to 1.95					0.3		1.1		0.3				1.1
		2.3 to 2.7					0.3		1.1		0.3				1.1
		3.0					0.3		1.2		0.3				1.2
		3.6					0.3		1.2		0.3				1.2
VOH	High Level Output	1.65 to 3.6		IO=-100 A			VCC-0.2				VCC-0.2
	Voltage
		1.65			IO=-4 mA		1.2				1.2
		2.3			IO=-8 mA		1.7				1.7					V
		2.7		IO=-12 mA			2.2				2.2
		3.0		IO=-12 mA			2.4				2.4
		3.0		IO=-24 mA			2.2				2.2
VOL	Low Level Output	1.65 to 3.6		IO=100 A					0.2						0.2
	Voltage
		1.65			IO=4 mA				0.45						0.45
		2.3			IO=8 mA				0.7						0.7	V
		2.7		IO=12 mA					0.4						0.4
		3.0		IO=24 mA					0.55						0.55
II	Input Leakage	3.6		VI = 0 to 5.5V					± 5						± 5	A
	Current
Ioff	Power Off Leakage	0		VI or VO = 5.5V					10						10	A
	Current
ICC	Quiescent Supply			VI = VCC or GND					10						10
	Current	3.6														A
				VI or VO = 3.6 to					± 10						± 10
					5.5V
∆ ICC	ICC incr. per Input	2.7 to 3.6		VIH = VCC-0.6V					500						500	A
Table 7: Dynamic Switching Characteristics
					Test Condition							Value
Symbol	Parameter			VCC							TA = 25 °C					Unit
				(V)						Min.		Typ.			Max.
VOLP	Dynamic Low Level Quiet			3.3		CL = 50pF						0.8				V
	Output (note 1)					VIL = 0V, VIH = 3.3V
VOLV												-0.8

1) Number of output defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to HIGH. The remaining output is measured in the LOW state.

4/12