Fairchild 74VCX32 service manual

74VCX32
Low Voltage Quad 2-Input OR Gate with

3.6V Tolerant Inpu ts and Ou tputs

74VCX32 Low Voltage Quad 2-Input OR Gate with 3.6V Tolerant Inputs and Outputs

July 1999
Revised October 2002

General Description

The VCX32 contains four 2-input OR gates. This product is
designed for low voltage (1.2V to 3.6V) V

with I/O compatibility up to 3.6V.
The VCX32 is fabricated with an advanced CMOS technol-

ogy to achieve high-speed o perati on whil e main tainin g low
CMOS power dissipation.

applications

CC

Features

■ 1.2V to 3.6V VCC supply operation

■ 3.6V tolerant inputs and outputs

■ t

PD

2.8 ns max for 3.0V to 3.6V V

■ Power-off high impedance inputs and outputs

■ Static Drive (I

±24 mA @ 3.0V V

■ Uses patented Quiet Series noise/EMI reduction

circuitry

■ Latchup performance exceeds 300 mA

■ ESD performance:

Human body model
Machine model

OH/IOL

)

CC

> 250V

CC

> 2000V

Ordering Code:

Order Number Package Number Package Description

74VCX32M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VCX32MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Devices also availab le in Tape and Reel. Specify by appending the suffix letter “X” to the o rdering code.

Logic Symbol

IEEC/IEC

Connection Diagram

Pin Descriptions

Pin Names Description

A

, B

n

n

O

n

Quiet Series is a tra demark of Fairchild Semiconductor Corp oration.

© 2002 Fairchild Semiconductor Corporation ds500162 www.fairchildsemi.com

Inputs
Outputs

Absolute Maximum Ratings(Note 1) Recommended Operating

Supply Voltage (VCC) −0.5V to +4.6V
DC Input Voltage (V

74VCX32

DC Output Voltage (V

HIGH or LOW State (Note 2)
V

= 0V −0.5V to +4.6V

CC

DC Input Diode Current (I

< 0V −50 mA

V

I

DC Output Diode Current (I
V

< 0V −50 mA

O

> V

V

O

CC

) −0.5V to 4.6V

I

)

O

−0.5V to V

)

IK

)

OK

DC Output Source/Sink Current

(I

) ±50 mA

OH/IOL

or Ground Current per ±100 mA

DC V

CC

Supply Pin (I
Storage Temperature (T

or Ground)

CC

) −65°C to +150°C

STG

+ 0.5V

CC

+50 mA

Conditions

Power Supply

Operating 1.2V to 3.6V

Data Retention Only 1.2V to 3.6V
Input Voltage
Output Voltage (V

HIGH or LOW State 0V to V
Output Current in IOH/I

VCC = 3.0V to 3.6V ±24 mA

V

= 2.3V to 2.7V ±18 mA

CC

= 1.65V to 2.3V ±6 mA

V

CC

V

= 1.2V ±100 µA

CC

Free Air Operating Temperature (T
Minimum Input Edge Rate (

V

= 0.8V to 2.0V, VCC = 3.0V 10 ns/V

IN

Note 1: The “Absolute Maximum Ratings” are those values bey ond which
the safety of the d evice cannot be guaranteed. The device sh ould not be
operated at these limit s. The parametric values defin ed in the Electrical
Characteristics tables are not guaranteed at the Absolute Maximum Rat­ings. The “Recommended Operating Conditions” table will define the condi­tions for actual device operat ion.

Absolute Maximum Rating must be observed.

Note 2: I

O

Note 3: Floating or unused inputs must be held HIGH or LOW.

(Note 3)

)

O

OL

∆t/∆V)

DC Electrical Characteristics

V

Symbol Parameter Conditions

V

IH

V

IL

V

OH

HIGH Level Input Voltage 2.7 - 3.6 2.0

LOW Level Input Voltage 2.7 - 3.6 0.8

HIGH Level Output Voltage IOH = −100 µA 2.7 - 3.6 VCC - 0.2

IOH = −12 mA 2.7 2.2
IOH = −18 mA 3.0 2.4
IOH = −24 mA 3.0 2.2
IOH = −100 µA 2.3 - 2.7 VCC - 0.2
IOH = −6 mA 2.3 2.0
IOH = −12 mA 2.3 1.8
IOH = −18 mA 2.3 1.7
IOH = −100 µA 1.65 - 2.3 VCC - 0.2
IOH = −6 mA 1.65 1.25
IOH = −100 µA 1.4 - 1.6 VCC - 0.2
IOH = −2 mA 1.4 1.05
IOH = −100 µA1.2V

CC

(V)

2.3 - 2.7 1.6

1.65 - 2.3 0.65 x V

1.4 - 1.6 0.65 x V

1.2 0.65 x V

2.3 - 2.7 0.7

1.65 - 2.3 0.35 x V

1.4 - 1.6 0.35 x V

1.2 0.05 x V

Min Max Units

- 0.2

CC

−0.3V to 3.6V

) −40°C to +85°C

A

CC
CC
CC

CC
CC
CC

CC

V

V

V

www.fairchildsemi.com 2

DC Electrical Characteristics (Continued)

V

Symbol Parameter Conditions

V

OL

LOW Level Output Voltage IOL = 100 µA 2.7 - 3.6 0.2

= 12 mA 2.7 0.4

I

OL

I

= 18 mA 3.0 0.4

OL

(V)

CC

Min Max Units

IOL = 24 mA 3.0 0.55

= 100 µA 2.3 - 2.7 0.2

I

OL

I

= 12 mA 2.3 0.4

OL

IOL = 18 mA 2.3 0.6

= 100 µA 1.65 - 2.3 0.2

I

OL

I

= 6 mA 1.65 0.3

OL

IOL = 100 µA 1.4 - 1.6 0.2

= 2 mA 1.4 0.35

I

OL

I

= 100 µA 1.2 0.05
I
I
I

I
OFF
CC

Input Leakage Current 0 ≤ VI ≤ 3.6V 1.2 - 3.6 ±5.0 µA
Power Off Leakage Current 0 ≤ (VI) ≤ 3.6V 0 10 µA
Quiescent Supply Current VI = VCC or GND 1.2 - 3.6 20

OL

VCC ≤ VI ≤ 3.6V 1.2 - 3.6 ±20

∆I

Increase in ICC per Input VIH = VCC – 0.6V 2.7 - 3.6 750 µA

CC

AC Electrical Characteristics (Note 4)

V

TA = −40°C to +85°C

Symbol Parameter Conditions

t
t

PHL
PLH

Propagation Delay CL = 30 pF, RL = 500Ω 3.3 ± 0.3 0.6 2.8

CC

(V) Min Max Number

2.5 ± 0.2 0.8 3.7

1.8 ± 0.15 1.0 7.4

C

= 15 pF, RL = 2kΩ 1.5 ± 0.1 1.0 14.8

L

1.2 1.5 37

t

OSHL

t

OSLH

Output to Output CL = 30 pF, RL = 500Ω 3.3 ± 0.3 0.5
Skew (Note 5) 2.5 ± 0.2 0.5

1.8 ± 0.15 0.75

= 15 pF, RL = 2kΩ 1.5 ± 0.1 1.5

C

L

1.2 1.5

Note 4: For CL = 50 pF, add approximately 300 ps to the AC maximum specification.
Note 5: Skew is defined as t he absolute value of the difference between the actu al propagation delay for any two separate outputs o f t he same device. T h e

specification applies t o any outputs switchi ng in the same direction , ei th er HIGH-to-LOW (t

) or LOW-to-HIGH (t

OSHL

OSLH

).

Units

ns

ns

Figure

Figures

Figures

74VCX32

V

µA

1, 2

3, 4

3 www.fairchildsemi.com