ST 74LCX05 User Manual

74LCX05

74LCX05

LOW VOLTAGE CMOS HEX INVERTER (OPEN DRAIN) WITH 5V TOLERANT INPUTS

■5V TOLERANT INPUTS

■HIGH SPEED:

tPD = 5.2ns (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

■OPERATING VOLTAGE RANGE:

VCC(OPR) = 2.0V to 3.6V (1.5V Data Retention)

■PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 05

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

■ESD PERFORMANCE:

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

DESCRIPTION

The 74LCX05 is a low voltage CMOS OPEN DRAIN HEX INVERTER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power and high speed 3.3V applications. It can be interfaced to 5V signal environment for inputs.

SOP TSSOP

Table 1: Order Codes

PACKAGE	T & R
SOP	74LCX05MTR
TSSOP	74LCX05TTR

The internal circuit is composed of 3 stages including buffer output, which provides high noise immunity and stable output.

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

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

September 2004	Rev. 3
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74LCX05

Figure 2: Input And Output Equivalent Circuit

Table 2: Pin Description

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

Table 3: Truth Table

A	Y
L	Z
H	L

Z : High Impedance

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	DC Supply Current per Supply Pin	±	100	mA
IGND	DC 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

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				74LCX05
Table 5: Recommended Operating Conditions
Symbol	Parameter	Value			Unit
VCC	Supply Voltage (note 1)	2.0 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 = 2.7V)	±	12		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: 1.5V to 3.6V

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

Table 6: DC Specifications

Test Condition

Value

Symbol

Parameter

VCC

-40 to 85 °C

-55 to 125 °C

Unit

(V)

Min.

Max.

Min.

Max.

VIH

High Level Input

2.0

2.0

V

Voltage

2.7 to 3.6

VIL

Low Level Input

0.8

0.8

V

Voltage

VOL

Low Level Output

2.7 to 3.6

IO=100 A

0.2

0.2

Voltage

2.7

IO=12 mA

0.4

0.4

V

3.0

IO=16 mA

0.4

0.4

IO=24 mA

0.55

0.55

II

Input Leakage

2.7 to 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

IOZ

High Impedance

2.7 to 3.6

VI = VIH or VIL

± 5

± 5

A

Output Leakage

VO = 0 to VCC

Current

ICC

Quiescent Supply

2.7 to 3.6

VI = VCC or GND

10

10

A

Current

VI or VO= 3.6 to 5.5V

± 10

± 10

∆ 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

VIL = 0V

0.8

V

VOLV

Output (note 1)

VIH = 3.3V

-0.8

1) Number of outputs 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.

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74LCX05

Table 8: AC Electrical Characteristics

		Test Condition					Value
Symbol	Parameter	VCC	CL	RL	ts = tr	-40 to 85 °C		-55 to 125 °C		Unit
		(V)	(pF)	(Ω )	(ns)	Min.	Max.	Min.	Max.
tPLZ	Propagation Delay	2.7	50	500	2.5		6.5		6.5	ns
	Time	3.0 to 3.6				1.0	5.2	1.0	5.2
tPZL	Propagation Delay	2.7	50	500	2.5		6.5		6.5	ns
	Time	3.0 to 3.6				1.0	5.2	1.0	5.2
tOSLH	Output To Output	3.0 to 3.6	50	500	2.5		1.0		1.0	ns
tOSHL	Skew Time (note1,
	2)

1) Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-

ing in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|) 2) Parameter guaranteed by design

Table 9: Capacitive Characteristics

			Test Condition				Value
Symbol	Parameter	VCC				TA = 25 °C				Unit
		(V)			Min.		Typ.		Max.
CIN	Input Capacitance	3.3		VIN = 0 to VCC			6			pF
COUT	Output Capacitance	3.3		VIN = 0 to VCC			14			pF
CPD	Power Dissipation Capacitance	3.3		fIN = 10MHz			5			pF
	(note 1)			VIN = 0 or VCC

1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/6 (per gate)

Figure 3: Test Circuit

	TEST	SWITCH
tPLH, tPHL		Open
tPZL, tPLZ		6V
tPZH, tPHZ		GND
CL = 50 pF or equivalent (includes jig and probe capacitance)
RL = R1 = 500Ω	or equivalent
RT = ZOUT of pulse generator (typically 50Ω )
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