Fairchild Semiconductor 74VHCT574CW, 74VHCT573CW, 74VHCT74CW, 74VHCT244CW, 74VHCT08CW Datasheet

July 1997

Revised March 1999

74VHCT00A

Quad 2-Input NAND Gate

General Description

The VHCT00A is an advanced high-speed CMOS 2-Input NAND Gate fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The internal circuit is composed of 3 stages, including buffer output, which provide high noise immunity and stable output.

Protection circuits ensure that 0V to 7V can be applied to the input pins without regard to the supply voltage and to the output pins with VCC = 0V. These circuits prevent device destruction due to mismatched supply and input/ output voltages. This device can be used to interface 3V to

5V systems and two supply systems such as battery backup.

Features

■High speed: tPD = 5.0 ns (typ) at TA = 25°C

■High noise immunity: VIH = 2.0V, VIL = 0.8V

■Power down protection is provided on all inputs and outputs

■Low noise: VOLP = 0.8V (max)

■Low power dissipation:

ICC = 2 μA (max) at TA = 25°C

■Pin and function compatible with 74HCT00

Ordering Code:

Order Number	Package Number	Package Description
74VHCT00AM	M14A	14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
74VHCT00ASJ	M14D	14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHCT00AMTC	MTC14	14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74VHCT00AN	N14A	14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbol

Connection Diagram

Pin Descriptions

Truth Table

		Pin Names	Description
	An, Bn		Inputs
			Outputs
	O	n

A	B	O
L	L	H
L	H	H
H	L	H
H	H	L

Gate NAND Input-2 Quad 74VHCT00A

© 1999 Fairchild Semiconductor Corporation

DS500023.prf

www.fairchildsemi.com

74VHCT00A

Absolute Maximum Ratings(Note 1)

Recommended Operating

Supply Voltage (VCC)

−0.5V to +7.0V

Conditions (Note 5)

DC Input Voltage (VIN)

−0.5V to +7.0V

Supply Voltage (VCC)

4.5V to 5.5V

DC Output Voltage (VOUT)

−0.5V to VCC + 0.5V

Input Voltage (VIN)

0V to +5.5V

(Note 2)

Output Voltage (VOUT)

(Note 3)

−0.5V to 7.0V

(Note 2)

0V to VCC

Input Diode Current (IIK)

−20 mA

(Note 3)

0V to 5.5V

Output Diode Current (IOK)

±20 mA

Operating Temperature (TOPR)

−40°C to +85°C

(Note 4)

Input Rise and Fall Time (tr, tf)

DC Output Current (IOUT)

±25 mA

VCC = 5.0V ± 0.5V

0 ns/V 20 ns/V

DC VCC/GND Current (ICC)

±50 mA

Note 1: Absolute Maximum Ratings are values beyond which the device

Storage Temperature (TSTG)

−65°C to +150°C

may be damaged or have its useful life impaired. The databook specifica-

tions should be met, without exception, to ensure that the system design is

Lead Temperature (TL)

reliable over its power supply, temperature, and output/input loading vari-

260°C

ables. Fairchild does not recommend operation outside databook specifica-

(Soldering, 10 seconds)

tions.

Note 2: HIGH or LOW state. IOUT absolute maximum rating must be

observed.

Note 3: VCC = 0V.

Note 4: VOUT < GND, VOUT > VCC (Outputs Active)

Note 5: Unused inputs must be held HIGH or LOW. They may not float.

DC Electrical Characteristics

V

TA = 25°C

TA = −40°C to +85°C

Symbol

Parameter

CC

Units

Conditions

(V)

Min

Typ

Max

Min

Max

VIH

HIGH Level Input Voltage

4.5

2.0

2.0

V

5.5

2.0

2.0

VIL

LOW Level Input Voltage

4.5

0.8

0.8

V

5.5

0.8

0.8

VOH

HIGH Level Output Voltage

4.5

4.40

4.50

4.40

V

VIN = VIH

IOH = −50 μA

4.5

3.94

3.80

V

or VIL

IOH = −8 mA

VOL

LOW Level Output Voltage

4.5

0.0

0.1

0.1

V

VIN = VIH

IOL = 50 μA

4.5

0.36

0.44

V

or VIL

IOL = 8 mA

IIN

Input Leakage Current

0 − 5.5

±0.1

±1.0

μA

VIN = 5.5V

or GND

ICC

Quiescent Supply Current

5.5

2.0

20.0

μA

VIN = VCC or GND

ICCT

Maximum ICC/ Input

5.5

1.35

1.50

mA

VIN = 3.4V

Other Inputs = VCC or GND

IOFF

Output Leakage Current

0.0

0.5

5.0

μA

VOUT = 5.5V

(Power Down State)

Noise Characteristics

V

TA = 25°C

Symbol

Parameter

CC

Units

Conditions

(V)

Typ

Limit

VOLP

Quiet Output Maximum Dynamic VOL

5.0

0.4

0.8

V

CL = 50 pF

(Note 6)

VOLV

Quiet Output Minimum Dynamic VOL

5.0

−0.4

−0.8

V

CL = 50 pF

(Note 6)

VIHD

Minimum HIGH Level Dynamic Input Voltage

5.0

2.0

V

CL = 50 pF

(Note 6)

VILD

Maximum LOW Level Dynamic Input Voltage

5.0

0.8

V

CL = 50 pF

(Note 6)

Note 6: Parameter guaranteed by design.

www.fairchildsemi.com

2