ST 74LVC32A User Manual

74LVC32A

LOW VOLTAGE CMOS QUAD 2-INPUT OR GATE HIGH PERFORMANCE

■5V TOLERANT INPUTS

■HIGH SPEED: tPD = 4.2ns (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

■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 32

SOP TSSOP

Table 1: Order Codes

PACKAGE	T & R
SOP	74LVC32AMTR
TSSOP	74LVC32ATTR

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

■ESD PERFORMANCE:

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

DESCRIPTION

The 74LVC32A is a low voltage CMOS QUAD 2-INPUT OR GATE 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.

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. 4
	1/11

74LVC32A

Figure 2: Input And Output Equivalent Circuit

Table 2: Pin Description

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

Table 3: Truth Table

A	B	Y
L	L	L
L	H	H
H	L	H
H	H	H

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

2/11

				74LVC32A
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

Table 6: DC Specifications

		Test Condition			Value
Symbol	Parameter							Unit
		VCC		-40 to 85 °C		-55 to 125 °C
		(V)		Min.	Max.	Min.	Max.
VIH	High Level Input	1.65 to 1.95		0.65VCC		0.65VCC
	Voltage							V
		2.3 to 2.7		1.7		1.7
		2.7 to 3.6		2		2
VIL	Low Level Input	1.65 to 1.95			0.35VCC		0.35VCC
	Voltage							V
		2.3 to 2.7			0.7		0.7
		2.7 to 3.6			0.8		0.8
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=-18 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

3/11

74LVC32A

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.

Table 8: AC Electrical Characteristics

			Test Condition					Value
Symbol	Parameter										Unit
		VCC		CL	RL	ts = tr	-40 to 85 °C		-55 to 125 °C
		(V)		(pF)	(Ω )	(ns)	Min.	Max.	Min.	Max.
tPLH tPHL	Propagation Delay	1.65 to	1.95	30	1000	2.0		8.9		12
	Time	2.3 to	2.7	30	500	2.0		5.9		8.0	ns
		2.7		50	500	2.5		4.8		5.8
		3.0 to	3.6	50	500	2.5	1	4.2	1	5.0
tOSLH	Output To Output	2.7 to	3.6					1		1	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 switching 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						4			pF
CPD	Power Dissipation Capacitance	1.8		fIN = 10MHz			32
	(note 1)	2.5					33			pF
		3.3					37

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/n (per circuit)

4/11