Fairchild NC7ST00 service manual

NC7ST00

NC7ST00 TinyLogic

February 1997
Revised August 2004

TinyLogic

General Description

The NC7ST00 is a single 2-In put high pe rform anc e CMOS
NAND Gate, with TTL-compatible inputs. Advanced Silicon
Gate CMOS fabrication assures high speed and low power
circuit operation. E SD protection diodes inherently g uard
both inputs and outpu t with respect to the V

rails. High gain circuitry offers high noise immunity and
reduced sensitivity to input edge rate. The TTL-compa tible
inputs facilitate TTL to NMOS/CMOS inte rfacing. Device
performance is similar to MM74HCT but with 1/2 the output
current drive of HC/HCT.

 HST 2-Input NAND Gate

Features

■ Space saving SOT23 or SC70 5-lead package

■ Ultra small MicroPak

■ High Speed; t

and GND

CC

■ Low Quiescent Power; I

■ Balanced Output Drive; 2 mA I

■ TTL-compatible inputs

 leadless package

< 7 ns typ, VCC = 5V, CL = 15 pF

PD

< 1 µA typ, VCC = 5.5V

CC

, −2 mA I

OL

OH

Ordering Code:

Order Package Product Code

Number Number Top Mark

NC7ST00M5X MA05B 8S00 5-Lead SOT23, JEDEC MO-178, 1.6mm 3k Units on Tape and Reel
NC7ST00P5X MAA05A T00 5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 3k Units on Tape and Reel
NC7ST00L6X MAC06A E3 6-Lead MicroPak, 1.0mm Wide 5k Units on Tape and Reel

Logic Symbol

IEEE/IEC

Package Description Supplied As

Connection Diagrams

Pin Assignme nts for SOT23 and SC70



HST 2-Input NAND Gate

Pin Descriptions

Pin Names Description

A, B Inputs

Y Output

NC No Connect

Pad Assignments for MicroPak

(Top View)

Function Table

Y = AB

Inputs Output

ABY

LLH
LHH
HLH
HHL

H = HIGH Logic Le v el
L = LOW Logic Level

TinyLogic is a registered tradema rk of F airc hild Semiconduct or Corporation.
MicroPak is a tradem ark of Fairchild Semiconductor Corporation.

© 2004 Fairchild Semiconductor Corporation DS012181 www.fairchildsemi.com

(Top Thru View)

Absolute Maximum Ratings(Note 1) Recommended Operating

Supply Voltage (VCC) −0.5V to +7.0V
DC Input Diode Current (l

NC7ST00

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

Output Voltage (V

)

IK

IN

OK

) −0.5V to VCC + 0.5V

OUT

−0.5V to V

)

DC Output Source or

Sink Current (I

DC V

or Ground Current per

CC

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

) ±12.5 mA

OUT

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

CC

+ 0.5V

Conditions

Supply Voltage 4.5V to 5.5V
Input Voltage (V
Output Voltage (V
Operating Temperature (TA) −40°C to +85°C
Input Rise and Fall Time (t

V

= 5.0V 0 to 500 ns

CC

Thermal Resistance (

SOT23-5 300
SC70-5 425

Note 1: Absolute Maximum Ratings a re those va lues beyon d which d am-

°C

age to the device may occu r. The databook specifica tions should be met ,
without exception, to ensure that the design is reliable over its power sup­ply, temperature, and output/input loading variables Fairchild does not rec­ommend operation of circuits outside th e databook specific at ions.

Note 2: Unused inputs must be held HIGH or LOW. They may not float.

(Note 2)

) 0.0 V to V

IN

) 0V to V

OUT

, tf)

r

θ

)

JA

DC Electrical Characteristics

Symbol Parameter

V
V
V

V

I
I
I

HIGH Level Input Voltage 4.5–5.5 2.0 2.0 V

IH

LOW Level Input Voltage 4.5–5.5 0.8 0.8 V

IL

HIGH Level Output Voltage 4.5 4.4 4.5 4.4

OH

LOW Level Output Voltage 4.5 0 0.1 0.1

OL

Input Leakage Current 5.5 ±0.1 ±1.0 µA0 ≤ VIN ≤ 5.5V

IN

Quiescent Supply Current 5.5 1.0 10.0 µAVIN = VCC or GND

CC
CCTICC

per Input 5.5 2.0 2.9 mA One Input VIN = 0.5V or 2.4V,

V

CC

(V) MinTypMaxMinMax

4.5 4.18 4.35 4.13 I

4.5 0.10 0.26 0.33 I

TA = +25°CT

= −40°C to +85°C

A

Units Conditions

V

V

°C/W
°C/W

IOH = −20 µA

= −2 mA

OH

= V

V

IN

IL

IOL = 20 µA

= 2 mA

OL

= V

V

IN

IH

Other Input VCC or GND

CC
CC

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AC Electrical Characteristics

Symbol Parameter

t

, Propagation Delay 5.0 3.4 12

PLH

t

PHL

VCC T

(V) Min Typ Max Min Max Number

4.5 6.0 16 20

5.5 4.1 14 18

, Output Transition Time 5.0 4 10 ns CL = 15 pF

t

TLH

t

THL

4.5 11 25 31

5.5 10 21 26

C

Input Capacitance Open 2 10 pF

IN

C

Power Dissipation Capacitance 5.0 6 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. Current consumption (I
output loading and operating at 50% duty cycle. (See Figure 2). CPD is related to I

= (CPD)(VCC)(fIN) + (I

I

CCD

CCstatic

).

= +25°CT

A

= −40°C to +85°C

A

6.3 17

11.5 27 31

11.2 26 30

dynamic operating current by the expressi on:

CCD

Units Conditions

C

= 15 pF

L

ns

C

= 50 pF

L

ns CL = 50 pF

AC Loading and Waveforms

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

= 500 ns

w

FIGURE 1. AC Test Circuit

CCD

Figure

Figures

1, 3

Figures

1, 3

) at no

NC7ST00

Input = AC Wavefor m; PRR = variable; Duty Cycle = 50%

FIGURE 2. I

Test Circuit

CCD

FIGURE 3. AC Waveforms

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