Fairchild NC7WZ126 service manual

NC7WZ126

NC7WZ126 TinyLogic

March 2001
Revised January 2005

TinyLogic

General Description

The NC7WZ126 is a Dual N on-Inverting Buffer with inde­pendent active HIGH enables for the 3-STA TE outputs. The
Ultra High Speed device is fabricated with advanced
CMOS technology to achieve superior switching perfor­mance with high output drive while maintaining low static
power dissipation over a br oad V

device is specified to o perate over the 1.65V to 5.5V V
operating range. Th e inputs and outputs are h igh imped-

ance when V
independent of V
ages above V

 UHS Dual Buffer with 3-STATE Outputs

Features

■ Space saving US8 surface mount package

 Pb-Free leadless package

3.3V V

CC

translation

2.6 ns Typ into 50 pF at 5V V

PD

operating range. The

CC

is 0V. Inputs tolerate voltages up to 5.5V

CC

operating range. Outp uts tolera te vol t-

CC

when in the 3-STATE condition.

CC

■ MicroPak

■ Ultra High Speed; t

■ High Output Drive; ±24 mA at 3V V

■ Broad VCC Operating Range: 1.65V to 5.5V

CC

■ Matches the performance of LCX when operated at

■ Power down high impedance inputs/outputs

■ Overvoltage tolerant inputs facilitate 5V to 3V

■ Outputs are overvoltage tolerant in 3-STATE mode

■ Patented noise/EMI reduction circuitry implemented

CC

CC

Ordering Code:

Product

Package Description Supplied AsOrder Package Code

Number Number Top Mark

NC7WZ126K8X MAB08A WZ26 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
NC7WZ126L8X MAC08A T6 Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5k Units on Tape and Reel

Pb-Free pac k age per JEDEC J-STD-020B.

Logic Symbol

Connection Diagrams



UHS Dual Buffer with 3-STATE Outputs

Pin Descriptions

Pin Names Description

OE

n

A

n

Y

n

Enable Inputs for 3-STATE Outputs

Inputs

3-STATE Outputs

(Top View)

Pad Assignments for MicroPak

Function Table

Inputs Output

OE A

HLL
HHH

LLZ
LHZ

H = HIGH Logic Le v el L = LOW Logic Level Z = 3-STATE
TinyLogic is a registered trademark of Fairchild Semiconductor Corporation. MicroPak is a trademark of Fairchild Semicon duc t or Corporation.

© 2005 Fairchild Semiconductor Corporation DS500397 www.fairchildsemi.com

n

Y

n

(Top Thru View)

Absolute Maximum Ratings(Note 1) Recommended Operating

Supply Voltage (VCC) −0.5V to +7.0V
DC Input Voltage (V
DC Output Voltage (V

NC7WZ126

DC Input Diode Current (I

@V

< 0V −50 mA

IN

DC Output Diode Current (I

< 0V −50 mA

@V

OUT

DC Output Source/Sink Current (I
DC V

/GND Current (ICC/I

CC

Storage Temperature Range (T
Junction Temperature under Bias (T
Junction Lead Temperature (T

) (Note 2) −0.5V to +7.0V

IN

) −0. 5V to +7.0V

OUT

)

IK

)

OK

) ±50 mA

OUT

) ±100 mA

GND

) −65°C to +150°C

STG

) +150°C

J

)

L

(Soldering, 10 seconds)

Power Dissipation (P

) @+85°C 250 mW

D

+260°C

Conditions

Supply Voltage Operating (V
Supply Voltage Data Retention (V
Input Voltage (V
Output Voltage (V

Active State 0V to V

3-State 0V to 5.5V
Operating Temperature (T
Input Rise and Fall Time (t

V

= 1.8V, 0.15V, 2.5V ± 0.2V 0 ns/V to 20 ns/V

CC

= 3.8V ± 0.3V 0 ns/V to 10 ns/V

V

CC

V

= 5.0V ± 0.5V 0 ns/V to 5 ns/V

CC

Thermal Resistance (

Note 1: Absolute maximum ratings are DC values beyond which the devi ce
may be damage d or h ave its us eful life im pai red. Th e dat as heet sp ecific a­tions should be met, without exception, to ensure that the system design is
reliable over its power supply, temperature, and output/input loading vari­ables. Fairchild does no t recommend operation outsid e datasheet spec ifi­cations.

Note 2: The input and ou tput ne ga tive voltag e ra ting s may be ex ceed ed is
the input and output diode current ratings are observed.

Note 3: Unused inputs must be held HIGH or LOW. They may not float.

(Note 3)

) 1.65V to 5.5V

CC

)0V to 5.5V

IN

)

OUT

) −40°C to +85°C

A

, tf)

r

θ

)250°C/W

JA

DC Electrical Characteristics

V

Symbol Parameter

V

HIGH Level Input Voltage 1.65 to 1.95 0.75 V

IH

V

LOW Level Input Voltage 1.65 to 1.95 0.25 V

IL

V

HIGH Level Output Voltage 1.65 1.55 1.65 1.55

OH

V

LOW Level Output Voltage 1.65 0.0 0.10 0.10

OL

I

Input Leakage Current 0 to 5.5 ±0.1 ±1 µAVIN = 5.5V, GND

IN

I

3-STATE Output Leakage 1.65 to 5.5 ±0.5 ±5 µAVIN = VIH or V

OZ

I

Power Off Leakage Current 0.0 1 10 µAVIN or V

OFF

I

Quiescent Supply Current 1.65 to 5.5 1 10 µAVIN = 5.5V, GND

CC

. 2.3 to 5.5 0.7 V

CC

(V) Min Typ Max Min Max

2.3 to 5.5 0.3 V

2.3 2.2 2.3 2.2 V

3.0 2.9 3.0 2.9 or V

4.5 4.4 4.5 4.4

1.65 1.29 1.52 1.29

2.3 1.9 2.15 1.9 V

3.0 2.4 2.80 2.4 or VILIOH = −16 mA

3.0 2.3 2.68 2.3 IOH = −24 mA

4.5 3.8 4.20 3.8 IOH = −32 mA

2.3 0.0 0.10 0.10 VIN = VIHIOL = 100 µA

3.0 0.0 0.10 0.10 or V

4.5 0.0 0.10 0.10

1.65 0.08 0.24 0.24

2.3 0.10 0.3 0.3 VIN = VIHIOL = 8 mA

3.0 0.15 0.4 0.4 or VILIOL = 16 mA

3.0 0.22 0.55 0.55 IOL = 24 mA

4.5 0.22 0.55 0.55 IOL = 32 mA

TA = +25°CT

CC
CC

= −40°C to +85°C

A

0.75 V

0.7 V

CC
CC

Unit Conditions

CC
CC

0.25 V

CC

0.3 V

CC

) 1.5V to 5.5V

CC

V

V

= VIHIOH = −100 µA

IN

V

IL

I

= VIHIOH = −8 mA

IN

V

V

IL

IOL = 4 mA

V

0 ≤ V

≤ 5.5V

OUT

OUT

= −4 mA

OH

IL

= 5.5V

CC

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Noise Characteristics

V

Symbol Parameter

V

(Note 4) Quiet Output Maximum Dynamic V

OLP

V

(Note 4) Quiet Output Minimum Dynamic V

OLV

V

(Note 4) Quiet Output Minimum Dynamic V

OHV

(Note 4) Minimum HIGH Level Dynamic Input Voltage 5.0 3.5 V CL = 50 pF

V

IHD

V

(Note 4) Maximum LOW Level Dynamic Input Voltage 5.0 1.5 V CL = 50 pF

ILD

Note 4: Parameter guaranteed by design.

OL
OL
OH

CC

(V) Typ Max

5.0 1.0 V CL = 50 pF

5.0 1.0 V CL = 50 pF

5.0 4.0 V CL = 50 pF

TA = +25°C

Units Conditions

AC Electrical Characteristics

V

Symbol Parameter

t
t

Propagation Delay 1.8 ± 0.15 2.0 12.0 2.0 13.0

PLH

An to Y

PHL

n

CC

(V) Min Typ Max Min Max Number

2.5 ± 0.2 1.0 7.5 1.0 8.0 RD = 1 MΩ

3.3 ± 0.3 0.8 5.2 0.8 5.5 S

5.0 ± 0.5 0.5 4.5 0.5 4.8
t
t

t
t

t
t

Propagation Delay 3.3 ± 0.3 1.2 5.7 1.2 6.0

PLH

An to Y

PHL

OSLH
OSHL

PZL
PZH

n

Output to Output Skew 3.3 ± 0.3 1. 0 1.0
(Note 5) 5.0 ± 0.5 0.8 0.8 RD = 500Ω

Output Enable Time 1.8 ± 0.15 3.0 14.0 3.0 15.0

5.0 ± 0.5 0.8 5.0 0.8 5.3 RD = 500Ω

2.5 ± 0.2 1.8 8.5 1.8 9.0 RD, RU = 500Ω

3.3 ± 0.3 1.2 6.2 1.2 6.5 S1 = GND for t

5.0 ± 0.5 0.8 5.5 0.8 5.8 S1 = VI for t

t
t

Output Disable Time 1.8 ± 0.15 2.5 12.0 2.5 13.0

PLZ
PHZ

2.5 ± 0.2 1.5 8.0 1.5 8.5 RD, RU = 500Ω

3.3 ± 0.3 0.8 5.7 0.8 6.0 S

5.0 ± 0.5 0.3 4.7 0.3 5.0 S1 = VI for t

C
C
C

Input Capacitance 0 2.5

IN

Output Capacitance 5.0 4

OUT

Power Dissipation 3.3 10

PD

Capacitance 5.0 1 2

Note 5: Parameter guaranteed by design. t
Note 6: C

loading and operating at 50% duty cycle. (See Figure 2.) C
I

is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I

PD

= (CPD) (VCC) (fIN) + (ICC static).

CCD

OSLH

= | t

PLHmax

TA = +25°CT

− t

|; t

PLHmin

is related to I

PD

= | t

OSHL

PHLmax

dynamic operating current by the express ion:

CCD

= −40°C to +85°C

A

− t

|.

PHLmin

Units Conditions

CL = 15 pF

ns

= OPEN

1

CL = 50 pF

ns

S1 = OPEN
CL = 50 pF

ns

S1 = OPEN
CL = 50 pF

ns

VI = 2 × V
CL = 50 pF

ns

= GND for t

1

VI = 2 × V

pF

pF (Note 6) Figure 2

PZH

PZL

CC

PHZ

PLZ

CC

) at no output

CCD

Figure

Figures

1, 3

Figures

1, 3

Figures

1, 3

Figures

1, 3

Figures

1, 3

NC7WZ126

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