© 2003 Fairchild Semiconductor Corporation DS500399 www.fairchildsemi.com
March 2001
Revised April 2003
NC7WZ241 TinyLogi c
UHS Dual Buffer with 3-STATE Outputs
NC7WZ241
TinyLogic UHS Dual Buffer with 3- STATE Outputs
General Description
The NC7WZ241 is a Dual Non-Inverting Buffer with
3-STATE outputs. The output enable circuitry is organized
as active LOW for one buffer and active HIGH for the oth er
buffer, thus facilitating transceiver operation.
The Ultra High Speed device is fabricated with advanced
CMOS technology to achieve superior switching perfor-
mance with high output drive while maintaining low static
power dissipation over a broad VCC operating range. The
device is spe cified to operate over the 1.6 5V to 5.5V VCC
operating range. The inputs and outputs are high imped-
ance when VCC is 0V. Inputs tolerate voltages up to 5.5V
indepen dent of VCC operat ing rang e. Outp uts tolera te vol t-
ages above VCC when in the 3-STATE condition.
Features
■Space saving US8 surface mount package
■MicroPak leadless package
■Ultra High Speed; tPD 2.6 ns Typ into 50 pF at 5V VCC
■High Output Drive; ±24 mA at 3V VCC
■Broad VCC Operating Range: 1.65V to 5.5V
■Matches the performance of LCX when operated at
3.3V VCC
■Power down high impedance inputs/outputs
■Overvoltage tolerant inputs facilitate 5V to 3V
translation
■Outputs are overvoltage tolerant in 3-STATE mode
■Patented noise/EMI reduction circuitry implemented
Ordering Code:
TinyLogic is a regis t ered tradem ark of F airc hild Semiconduc t or Corpor ation.
MicroPak is a trad em ark of Fairchild Sem icond uc t or Corporation.
Product Package Description Supplied AsOrder Package Code
Number Number To p Mark
NC7WZ241K8X MAB08A WZ41 8-Lead US8, JEDEC MO-187, V ariation CA 3.1mm Wide 3k Units on Tape and Reel
NC7WZ241L8X
(Preliminary) MAC08A T7 8-Lead MicroPak, 1.6 mm Wide 5k Units on Tape and Reel
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NC7WZ241
Logic Symbol
Function Table
H = HIGH Logi c Level
L = LOW Logic Lev el
Z = 3-STAT E
Pin Descriptions
Connection Diagrams
(Top View)
Pad Assignments for MicroPak
(Top Thru View)
Inputs Output
OE or OE AnY1Y2
LLLZ
LHHZ
HLZL
HHZH
Pin Names Description
OE, OE Enable Inputs for 3-STATE Outputs
AnInputs
Yn3-STATE Outputs
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NC7WZ241
Absolute Maximum Ratings(Note 1) Recommended Operating
Conditions (Note 3)
Note 1: Abs olut e maxi mum ratin gs ar e DC value s beyond whi ch t he devi ce
may b e dam aged or h ave its usef ul li fe i mpa ired . Th e data she et sp ecif ica-
tions should be met, without exception, to ensure that the system design is
reliable over its power supply, temperature, and output/input loading vari-
ables. Fairchild does not recommend operation outside datasheet specifi-
cations.
Note 2: The input an d ou tput ne ga tive v oltag e rat ings may be ex cee ded is
the in put and output diode cu rrent ratings are observed.
Note 3: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Supply Voltage (VCC)−0.5 V to +7.0V
DC Input Voltage (VIN) (Note 2) −0.5V to +7.0V
DC Output Voltage (VOUT)−0.5 V to +7.0V
DC Input Diode Current (IIK)
@VIN < 0V −50 mA
DC Output Diode Current (IOK)
@VOUT < 0V −50 mA
DC Output Source/Sink Current (IOUT)±50 mA
DC VCC/GND Current (ICC/IGND)±100 mA
Storage Temperature Range (TSTG)−65°C to +150°C
Junction Temperature under Bias (TJ)+150°C
Junction Lead Tem per atu re (T L)
(Soldering, 10 seconds) +260°C
Power Dissipation (PD) @+85°C 250 mW
Supply Voltage Operating (VCC) 1.65V to 5.5V
Supply Voltage Data Retention (VCC) 1.5V to 5.5V
Input Voltage (VIN) 0V to 5.5V
Output Voltage (VOUT)
Active State 0V to VCC
3-State 0V to 5.5V
Operating Temperature (TA)−40°C to +85°C
Input Rise and Fall Time (tr, tf)
VCC = 1.8V, 0.15V, 2.5V ± 0.2V 0 ns/V to 20 ns/V
VCC = 3.8V ± 0.3V 0 ns/V to 10 ns/V
VCC = 5.0V ± 0.5V 0 ns/V to 5 ns/V
Thermal Resistance (θJA)250°C/W
Symbol Parameter VCC TA = +25°CT
A = −40°C to +85°CUnit Conditions
(V) Min Typ Max Min Max
VIH HIGH Level Input V oltag e 1.65 to 1.95 0.75 VCC 0.75 VCC V
. 2.3 to 5.5 0.7 VCC 0.7 VCC
VIL LOW Level Input Voltage 1.65 to 1.95 0.25 VCC 0.25 VCC V
2.3 to 5.5 0.3 VCC 0.3 VCC
VOH HIGH Level Output Voltage 1.65 1.55 1.65 1.55
V
2.3 2.2 2.3 2.2 VIN = VIH IOH = −100 µA
3.0 2.9 3.0 2.9 or VIL
4.5 4.4 4.5 4.4
1.65 1.29 1.52 1.29
V
IOH = −4 mA
2.3 1.9 2.15 1.9 VIN = VIH IOH = −8 mA
3.0 2.4 2.80 2.4 or VIL IOH = −16 mA
3.0 2.3 3.68 2.3 IOH = −24 mA
4.5 3.8 4.20 3.8 IOH = −32 mA
VOL LOW Level Output Voltage 1.65 0.0 0.10 0.10
V
2.3 0.0 0.10 0.10 VIN = VIH IOL = 100 µA
3.0 0.0 0.10 0.10 or VIL
4.5 0.0 0.10 0.10
1.65 0.08 0.24 0.24
V
IOL = 4 mA
2.3 0.10 0.3 0.3 VIN = VIH IOL = 8 mA
3.0 0.15 0.4 0.4 or VIL IOL = 16 mA
3.0 0.22 0.55 0.55 IOL = 24 mA
4.5 0.22 0.55 0.55 IOL = 32 mA
IIN Input Leakage Current 0 to 5.5 ±0.1 ±1µAV
IN = 5.5V, GND
IOZ 3-STATE Output Leakage 1.65 to 5.5 ±0.5 ±5µAV
IN = VIH or VIL
0 ≤ VOUT ≤ 5.5V
IOFF Power Off Leakage Current 0.0 1 10 µAV
IN or VOUT = 5.5V
ICC Quiescent Supply Current 1.65 to 5.5 1 10 µAV
IN = 5.5V, GND
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NC7WZ241
Noise Characteristics
Note 4: Parameter guaranteed by design.
AC Electrical Characteristi cs
Note 5: Parameter guaranteed by design. tOSLH = | tPLHmax − tPLHmin |; tOSHL = | tPHLmax − tPHLmin |.
Note 6: CPD is defined as the value of th e internal equivalent c apacita nc e which is deriv ed from dy namic operat ing current con su m pt ion (ICCD) at no output
loading and operating at 50% duty cycle. (See Figure 2.) CPD is related to I CCD dynamic operating current by the expression:
ICCD = (CPD) (VCC) (fIN) + (ICC sta tic) .
Symbol Parameter VCC TA = +25°CUnits Conditions
(V) Typ Max
VOLP (Note 4) Quiet Output Maximum Dynamic VOL 5.0 1.0 V CL = 50 pF
VOLV (Note 4) Quiet Output Minimum Dynamic VOL 5.0 1.0 V CL = 50 pF
VOHV (Note 4) Quiet Output Minimum Dynamic VOH 5.0 4.0 V CL = 50 pF
VIHD (Note 4) Minimum HIGH Level Dynamic Input Voltage 5.0 3.5 V CL = 50 pF
VILD (Note 4) Maximum LOW Level Dynamic Input Voltage 5.0 1.5 V CL = 50 pF
Symbol Parameter VCC TA = +25°CT
A = −40°C to +85°CUnits Conditions Figure
(V) Min Typ Max Min Max Number
tPLH Propagation Delay 1.8 ± 0.15 2.0 12.0 2.0 13.0
ns
CL = 15 pF
Figures
1, 3
tPHL An to Yn2.5 ± 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 S1 = OPEN
5.0 ± 0.5 0.5 4.5 0.5 4.8
tPLH Propagation Delay 3.3 ± 0.3 1.2 5.7 1.2 6.0 ns CL = 50 pF Figures
1, 3
tPHL An to Yn5.0 ± 0.5 0.8 5.0 0.8 5.3 RD = 500Ω
S1 = OPEN
tOSLH Output to Output Skew 3.3 ± 0.3 1.0 1.0 ns CL = 50 pF Figures
1, 3
tOSHL (Note 5) 5.0 ± 0.5 0.8 0.8 RD = 500Ω
S1 = OPEN
tPZL Output Enable Time 1.8 ± 0.15 3.0 14.0 3.0 15.0
ns
CL = 50 pF
Figures
1, 3
tPZH 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 tPZH
5.0 ± 0.5 0.8 5.5 0.8 5.8 S1 = VI for tPZL
VI = 2 × VCC
tPLZ Output Disable Time 1.8 ± 0.15 2.5 12.0 2.5 13.0
ns
CL = 50 pF
Figures
1, 3
tPHZ 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 S1 = GND for tPHZ
5.0 ± 0.5 0.3 4.7 0.3 5.0 S1 = VI for tPLZ
VI = 2 × VCC
CIN Input Capacitance 0 2.5 pF
COUT Output Capacitance 5.0 4
CPD Power Dissipation 3.3 10 pF OE = GND Figure 2
Capacitance (Note 6) 5.0 12 OE = VCC
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NC7WZ241
AC Loading and Waveforms
CL include s l oad and str ay c apacitan ce
Input PRR = 1.0 MHz, t w = 500 ns
FIGURE 1. AC Test Circuit
Input = AC Wav efo r m; tr = tf = 1.8 ns ;
PRR = 10 MHz; Duty Cycle = 50%
FIGURE 2. ICCD Test Circuit
FIGURE 3. AC Waveforms
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NC7WZ241
Tape and Reel Specification
TAPE FORMAT for US8
TAPE DIMENSIONS inches (millimeters)
TAPE FORMAT for Micr oPak
TAPE DIMENSIONS inches (millimeters)
Package Tape Number Cavity Cover Tape
Designator Section Cavities Status Status
Leader (Start End) 125 (typ) Empty Sealed
K8X Carrier 3000 Filled Sealed
Trailer (Hub End) 75 (typ) Empty Sealed
Package Tape Number Cavity Cover Tape
Designator Section Cavities Status Status
Leader (Start End) 125 (typ) Empty Sealed
L8X Carrier 3000 Filled Sealed
Trailer (Hub End) 75 (typ) Empty Sealed
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NC7WZ241
Tape and Reel Specifi cation (Continu ed)
REEL DIMENSIONS inches (millimeters)
Tape
Size ABCDN W1 W2 W3
8 mm 7.0 0.059 0.512 0.795 2.165 0.331 + 0.059/−0.000 0.567 W1 + 0.078/−0.039
(177.8) (1.50) (13.00) (20.20) (55.00) (8.40 + 1.50/−0.00) (14.40) (W1 + 2.00/−1.00)
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NC7WZ241
Physical Dimensions inches (millimeters) unless otherwise noted
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide
Package Number MAB08A
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NC7WZ241 TinyLogi c
UHS Dual Buffer with 3-STATE Outputs
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
8-Lead Micro Pa k, 1.6 mm Wide
Package Number MAC08A
(Preliminary)
Fairchild does not assume an y responsibility for u se of any circuitry described, no circuit patent license s are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life suppor t de vices o r syst ems are dev ic es or syste ms
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instruct ions fo r use pr ovi de d in the l abe ling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A crit ical componen t in any com ponen t of a life s uppor t
device or system whose failure to perform can be rea-
sonabl y e xpec ted to cause th e fa i lure of the l ife s upport
device or system, or to affect its safety or effectiveness.
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