Fairchild NC7S14 service manual

查询NC7S14供应商

NC7S14

NC7S14 TinyLogic

January 1996
Revised June 2000

TinyLogic

General Description

The NC7S14 is a sing le high perfo rmance CMOS Inverter
with Schmitt Trigger input. The circuit desig n provide s hys­teresis between the positive-going and negative going
input thresholds thereby improving noise margins.

Advanced Silicon Gate CMOS fabrication assures high
speed and low pow er circuit operation over a broad V

range. ESD protecti on diodes inherently guard both input
and output with respect to the V

 HS Inverter with Schmitt Trigger Input

Features

■ Space saving SOT23 or SC70 5-lead package

4.5 ns typ

CC

> 1V typ

< 1 µA

OL

, −2 mA I

and GND rails.

CC

■ Schmitt input hysteresis:

■ High speed: t

■ Low quiescent power: I

■ Balanced output drive: 2 mA I

CC

■ Broad VCC operating range: 2V – 6V

■ Balanced propagatio n delays

■ Specified for 3V operation

PD

OH

Ordering Code:

Order Number

NC7S14M5 MA05B 7S14 5-Lead SOT23, JEDEC MO-178, 1.6mm 250 Units on Tape and Reel
NC7S14M5X MA05B 7S14 5-Lead SOT23, JEDEC MO-178, 1.6mm 3k Units on Tape and Reel
NC7S14P5 MAA05A S14 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 250 Units on Tape and Reel
NC7S14P5X MAA05A S14 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 3k Units on Tape and Reel

Logic Symbol

Package Product Code
Number Top Mark

IEEE/IEC

Package Descript ion Supplied As

Connection Diagram



HS Inverter with Schmitt Trigger Input

(Top View)

Pin Descriptions Function Table

Pin Names Description

A Input
YOutput

NC No Connect

H = HIGH Logic Level
L = LOW Logic Level

TinyLogic is a trademark of Fairchild Semiconductor Co rporation.

© 2000 Fairchild Semiconductor Corporation DS012135 www.fairchildsemi.com

Input Output

AY

LH
HL

Y = A

Absolute Maximum Ratings(Note 1) Recommended Operating

Supply Voltage (VCC) −0.5V to +7.0V

NC7S14

DC Input Diode Current (I

@V

≤ −0.5V −20 mA

IN

≥ VCC +0.5V +20 mA

@V

IN

DC Input Voltage (V
DC Output Diode Current (I

< −0.5V −20 mA

@V

OUT

@V

> VCC +0.5V +20 mA

OUT

DC Output Voltage (V

)

IK

) −0.5V to VCC +0.5V

IN

)

OK

) −0.5V to VCC +0.5V

OUT

DC Output Source or Sink

Current (I

DC V

CC

Output Pin (I
Storage Temperature (T
Junction Temperature (T
Lead Temperature (T

) ±12.5 mA

OUT

or Ground Current per

or I

CC

) ±25 mA

GND

) −65°C to +150°C

STG

)150°C

J

)

L

(Soldering, 10 seconds) 260
Power Dissipation (P

) @ +85°C

D

SOT23-5 200 mW

SC70-5 150 mW

Conditions

Supply Voltage (V
Input Voltage (V
Output Voltage (V
Operating Temperature (TA) −40°C to +85°C
Thermal Resistance (

SOT23-5 300
SC70-5 425

Note 1: Absolute maximum ratings are those values beyond which damage
to the device may occur. The databook specifications should be met, with­out exception, to ensure that the system design is reliable over its power
supply, temperature, and ou tput/inp ut loadi ng varia bles. Fairchild does no t

°C

recommend operat ion of circuits outside t he databook specific ations.
Note 2: Unused inputs must be held HIGH or LOW. They may not float.

(Note 2)

) 2.0V to 6.0V

CC

)0V to V

IN

)0V to V

OUT

θ

)

JA

DC Electrical Characteristics

Symbol Parameter

V

V

V

V

V

Positive Threshold Voltage 2.0 1.0 1.29 1.5 1.0 1.6

P

Negative Threshold Voltage 2.0 0.3 0.70 0.9 0.3 0.9

N

Hysteresis Voltage 2.0 0.3 0.59 1.0 0.3 1.0

H

HIGH Level Output Voltage 2.0 1.90 2.0 1.90

OH

LOW Level Output Voltage 2.0 0.0 0.10 0.10

OL

VCC T

(V) Min Typ Max Min Max

3.0 1.5 1.90 2.2 1.5 2.2

4.5 2.3 2.73 3.15 2.3 3.15

6.0 3.0 3.56 4.2 3.0 4.2

3.0 0.6 1.05 1.35 0.6 1.35

4.5 1.13 1.66 2.0 1.13 2.0

6.0 1.5 2.24 2.6 1.5 2.6

3.0 0.4 0.85 1.3 0.4 1.3

4.5 0.6 1.08 1.4 0.6 1.4

6.0 0.8 1.31 1.7 0.8 1.7

3.02.903.0 2.90 IOH = −20 µA

4.54.404.5 4.40 VIN = V

6.05.906.0 5.90

3.0 2.68 2.87 2.63 IOH = −1.3 mA

4.5 4.18 4.37 4.13 IOH = −2 mA

6.0 5.68 5.86 5.63 IOH = −2.6 mA

3.0 0.0 0.10 0.10 IOH = 20 µA

4.5 0.0 0.10 0.10 VIN = V

6.0 0.0 0.10 0.10

3.0 0.1 0.26 0.33 IOL = 1.3 mA

4.5 0.1 0.26 0.33 IOL = 2 mA

6.0 0.1 0.26 0.33 IOL = 2.6 mA

= +25°CT

A

= −40°C to +85°C

A

Units Conditions

CC
CC

°C/W
°C/W

V

V

V

V

V

V

V

VIN = V

VIN = V

IL

IL

IH

IH

www.fairchildsemi.com 2

DC Electrical Characteristics (Continued)

Symbol Parameter

I

IN

I

CC

Input Leakage Current 6.0 ±0.1 ±1.0 µAVIN = VCC, GND
Quiescent Supply Current 6.0 1.0 10.0 µAVIN = VCC, GND

T

CC

(V) MinTypMaxMinMax

= +25°CT

A

= −40°C to +85°C

A

Units Conditions

V

AC Electrical Characteristics

V

Symbol Parameter

t

Propagation Delay 5.0 4.5 21 ns CL = 15 pF

PLH

t

PHL

CC

(V) Min Typ Max Min Max

2.0 20 100 125

3.0 12 27 35

4.5 8.5 20 25

6.0 7.5 17 21

Output Transition Time 5.0 3 8 ns CL = 15 pF

t

TLH

t

THL

2.0 25 125 145

3.0 16 35 45

4.5 11 25 30

6.0 9 21 24

C

Input Capacitance Open 2 10 10 pF

IN

C

Power Dissipation Capacitance 5.0 7 pF (Note 3) Figure 2

PD

Note 3: CPD is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I
loading and operating at 50% duty cycle. (See Figure 2.) C

= (CPD) (VCC) (fIN) + (ICCstatic).

I

CCD

TA = +25°CT

is related to I

PD

dynamic operating current by the express ion:

CCD

= −40°C to +85°C

A

Units Conditions Fig. No.

ns CL = 50 pF

ns CL = 50 pF

AC Loading and Waveforms

) at no output

CCD

Figures

1, 3

Figures

1, 3

NC7S14

CL includes load and s tr ay c apacitance
Input PR R = 1.0 MHz, t

= 500 ns

w

FIGURE 1. AC Test Circuit

Input = AC Waveforms;
PRR = variable; Duty Cycle = 50%

FIGURE 2. I

CCD

FIGURE 3. AC Waveforms

Test Circuit

3 www.fairchildsemi.com