D ts e t
aa h e
R c e t r lc r nc
o h se Ee to is
Ma u a t r dCo o e t
n fc u e
mp n n s
R c e tr b a d d c mp n ns ae
o h se rn e
o oet r
ma ua trd u ig ete dewaes
n fcue sn i r i/ fr
h
p rh s d f m te oiia s p l r
uc a e r
o h r n l u pi s
g
e
o R c e tr waes rce td f m
r o h se
fr e rae r
o
te oiia I. Al rce t n ae
h
r nl P
g
l e rai s r
o
d n wi tea p o a o teOC
o e t h p rv l f h
h
M.
P r aetse u igoiia fcoy
at r e td sn r n la tr
s
g
ts p o rmso R c e tr e eo e
e t rga
r o h se d v lp d
ts s lt n t g aa te p o u t
e t oui s o u rne
o
rd c
me t o e c e teOC d t s e t
es r x e d h
M aa h e.
Qu l yOv riw
ai
t
e ve
• IO- 0 1
S 90
•A 92 cr ct n
S 1 0 et ai
i
o
• Qu l e Ma ua trr Ls (
ai d
n fcues it QML MI- R -
) LP F
385
53
•C a sQ Mitr
ls
lay
i
•C a sVS a eL v l
ls
p c ee
• Qu l e S p l r Ls o D sr uos( L )
ai d u pi s it f it b tr QS D
e
i
•R c e trsacic l u pir oD A a d
o h se i
r ia s p l t L n
t
e
me t aln u t a dD A sa d r s
es lid sr n L tn ad .
y
R c e tr lcrnc , L i c mmi e t
o h se Ee t is L C s o
o
tdo
t
s p ligp o u t ta s t f c so r x e t-
u pyn rd cs h t ai y u tme e p ca
s
t n fr u lya daee u loto eoiial
i s o q ai n r q a t h s r n l
o
t
g
y
s p l db id sr ma ua trr.
u pi
e yn ut
y n fcues
T eoiia ma ua trr d ts e t c o a yn ti d c me t e e t tep r r n e
h r n l n fcue’ aa h e a c mp n ig hs o u n r cs h ef ma c
g
s
o
a ds e ic t n o teR c e tr n fcue v rino ti d vc . o h se Ee t n
n p c ai s f h o h se ma ua trd eso f hs e ie R c e tr lcr -
o
o
isg aa te tep r r n eo i s mio d co p o u t t teoiia OE s e ic -
c u rne s h ef ma c ft e c n u tr rd cs o h r n l M p c a
o
s
g
t n .T pc lv le aefr eee c p r o e o l. eti mii m o ma i m rt g
i s ‘y ia’ au s r o rfrn e up s s ny C r n nmu
o
a
r xmu ai s
n
ma b b s do p o u t h rceiain d sg , i lt n o s mpetsig
y e a e n rd c c aa tr t , e in smuai , r a l e t .
z o
o
n
© 2 1 R cetr l t n s LC Al i t R sre 0 1 2 1
0 3 ohs E cr i , L . lRg s eevd 7 1 0 3
e e oc
h
T l r m r, l s v iw wrcl . m
o e n oe p ae it w . e c o
a
e
s
o ec
NC7WZ126 TinyLogic UHS Dual Buffer with 3-STATE Outputs
March 2001
Revised January 2005
NC7WZ126
TinyLogic
UHS Dual Buffer with 3-STATE Outputs
General Description
The NC7WZ126 is a Dual Non-Inverting Buffer with inde-
pendent active HIGH enables for the 3-STATE outputs. 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 V
CC
operating range. The
device is specified to operate over the 1.65V to 5.5V V
CC
operating range. The inputs and outputs are high imped-
ance when V
CC
is 0V. Inputs tolerate voltages up to 5.5V
independent of V
CC
operating range. Outputs tolerate volt-
ages above V
CC
when in the 3-STATE condition.
Features
s
Space saving US8 surface mount package
s
MicroPak
Pb-Free leadless package
s
Ultra High Speed; t
PD
2.6 ns Typ into 50 pF at 5V V
CC
s
High Output Drive;
±
24 mA at 3V V
CC
s
Broad V
CC
Operating Range: 1.65V to 5.5V
s
Matches the performance of LCX when operated at
3.3V V
CC
s
Power down high impedance inputs/outputs
s
Overvoltage tolerant inputs facilitate 5V to 3V
translation
s
Outputs are overvoltage tolerant in 3-STATE mode
s
Patented noise/EMI reduction circuitry implemented
Ordering Code:
Product
Order
Number
NC7WZ126L8X
Package
Number
MAC08A
Code
Top Mark
WZ26
T6
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
Pb-Free 8-Lead MicroPak, 1.6 mm Wide
5k Units on Tape and Reel
Package Description
Supplied As
NC7WZ126K8X MAB08A
Pb-Free package per JEDEC J-STD-020B.
Logic Symbol
Connection Diagrams
Pin Descriptions
Pin Names
OE
n
A
n
Y
n
Description
Enable Inputs for 3-STATE Outputs
Inputs
3-STATE Outputs
(Top View)
Pad Assignments for MicroPak
Function Table
Inputs
OE
H
H
L
L
H
=
HIGH Logic Level
Output
A
n
L
H
L
H
Y
n
L
H
Z
Z
Z
=
3-STATE
L
=
LOW Logic Level
(Top Thru View)
MicroPak is a trademark of Fairchild Semiconductor Corporation.
TinyLogic is a registered trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation
DS500397
www.fairchildsemi.com
NC7WZ126
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
CC
)
DC Input Voltage (V
IN
) (Note 2)
DC Output Voltage (V
OUT
)
DC Input Diode Current (I
IK
)
@V
IN
<
0V
DC Output Diode Current (I
OK
)
@V
OUT
<
0V
DC Output Source/Sink Current (I
OUT
)
DC V
CC
/GND Current (I
CC
/I
GND
)
Storage Temperature Range (T
STG
)
Junction Temperature under Bias (T
J
)
Junction Lead Temperature (T
L
)
(Soldering, 10 seconds)
Power Dissipation (P
D
) @
+
85
°
C
−
0.5V to
+
7.0V
−
0.5V to
+
7.0V
−
0.5V to
+
7.0V
−
50 mA
−
50 mA
±
50 mA
±
100 mA
−
65
°
C to
+
150
°
C
+
150
°
C
+
260
°
C
250 mW
Recommended Operating
Conditions
(Note 3)
Supply Voltage Operating (V
CC
)
Supply Voltage Data Retention (V
CC
)
Input Voltage (V
IN
)
Output Voltage (V
OUT
)
Active State
3-State
Operating Temperature (T
A
)
Input Rise and Fall Time (t
r
, t
f
)
V
CC
=
1.8V, 0.15V, 2.5V
±
0.2V
V
CC
=
3.8V
±
0.3V
V
CC
=
5.0V
±
0.5V
Thermal Resistance (
θ
JA
)
0 ns/V to 20 ns/V
0 ns/V to 10 ns/V
0 ns/V to 5 ns/V
250
°
C/W
0V to V
CC
0V to 5.5V
1.65V to 5.5V
1.5V to 5.5V
0V to 5.5V
−
40
°
C to
+
85
°
C
Note 1:
Absolute maximum ratings are DC values beyond which the device
may be damaged or have its useful life impaired. The datasheet specifica-
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 and output negative voltage ratings may be exceeded is
the input and output diode current ratings are observed.
Note 3:
Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol
V
IH
V
IL
V
OH
Parameter
HIGH Level Input Voltage
.
LOW Level Input Voltage
HIGH Level Output Voltage
V
CC
(V)
2.3 to 5.5
1.65 to 1.95
2.3 to 5.5
1.65
2.3
3.0
4.5
1.65
2.3
3.0
3.0
4.5
V
OL
LOW Level Output Voltage
1.65
2.3
3.0
4.5
1.65
2.3
3.0
3.0
4.5
I
IN
I
OZ
I
OFF
I
CC
Input Leakage Current
3-STATE Output Leakage
Power Off Leakage Current
Quiescent Supply Current
0 to 5.5
1.65 to 5.5
0.0
1.65 to 5.5
1.55
2.2
2.9
4.4
1.29
1.9
2.4
2.3
3.8
1.65
2.3
3.0
4.5
1.52
2.15
2.80
2.68
4.20
0.0
0.0
0.0
0.0
0.08
0.10
0.15
0.22
0.22
0.10
0.10
0.10
0.10
0.24
0.3
0.4
0.55
0.55
±0.1
±0.5
1
1
Min
0.7 V
CC
0.25 V
CC
0.3 V
CC
1.55
2.2
2.9
4.4
1.29
1.9
2.4
2.3
3.8
0.10
0.10
0.10
0.10
0.24
0.3
0.4
0.55
0.55
±1
±5
10
10
µA
µA
µA
µA
V
or V
IL
I
OL
=
4 mA
V
IN
=
V
IH
I
OL
=
8 mA
I
OL
=
16 mA
I
OL
=
24 mA
I
OL
=
32 mA
V
IN
=
5.5V, GND
V
IN
=
V
IH
or V
IL
0
≤
V
OUT
≤
5.5V
V
IN
or V
OUT
=
5.5V
V
IN
=
5.5V, GND
V
V
IN
=
V
IH
I
OL
=
100
µA
or V
IL
V
or V
IL
I
OH
= −4
mA
V
IN
=
V
IH
I
OH
= −8
mA
I
OH
= −16
mA
I
OH
= −24
mA
I
OH
= −32
mA
V
V
IN
=
V
IH
I
OH
= −100 µA
or V
IL
1.65 to 1.95 0.75 V
CC
T
A
= +25°C
Typ
Max
T
A
= −40°C
to
+85°C
Min
0.75 V
CC
0.7 V
CC
0.25 V
CC
0.3 V
CC
Max
Unit
V
V
Conditions
www.fairchildsemi.com
2
NC7WZ126
Noise Characteristics
Symbol
V
OLP
(Note 4)
V
OLV
(Note 4)
V
OHV
(Note 4)
V
IHD
(Note 4)
V
ILD
(Note 4)
Parameter
Quiet Output Maximum Dynamic V
OL
Quiet Output Minimum Dynamic V
OL
Quiet Output Minimum Dynamic V
OH
Minimum HIGH Level Dynamic Input Voltage
Maximum LOW Level Dynamic Input Voltage
V
CC
(V)
5.0
5.0
5.0
5.0
5.0
T
A
= +25°C
Typ
Max
1.0
1.0
4.0
3.5
1.5
Units
V
V
V
V
V
Conditions
C
L
=
50 pF
C
L
=
50 pF
C
L
=
50 pF
C
L
=
50 pF
C
L
=
50 pF
Note 4:
Parameter guaranteed by design.
AC Electrical Characteristics
Symbol
t
PLH
t
PHL
Parameter
Propagation Delay
A
n
to Y
n
V
CC
(V)
1.8
±
0.15
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
t
PLH
t
PHL
t
OSLH
t
OSHL
t
PZL
t
PZH
Propagation Delay
A
n
to Y
n
Output to Output Skew
(Note 5)
Output Enable Time
3.3
±
0.3
5.0
±
0.5
3.3
±
0.3
5.0
±
0.5
1.8
±
0.15
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
t
PLZ
t
PHZ
Output Disable Time
1.8
±
0.15
2.5
±
0.2
3.3
±
0.3
5.0
±
0.5
C
IN
C
OUT
C
PD
Input Capacitance
Output Capacitance
Power Dissipation
Capacitance
0
5.0
3.3
5.0
3.0
1.8
1.2
0.8
2.5
1.5
0.8
0.3
2.5
4
10
12
Min
2.0
1.0
0.8
0.5
1.2
0.8
T
A
= +25°C
Typ
Max
12.0
7.5
5.2
4.5
5.7
5.0
1.0
0.8
14.0
8.5
6.2
5.5
12.0
8.0
5.7
4.7
3.0
1.8
1.2
0.8
2.5
1.5
0.8
0.3
T
A
= −40°C
to
+85°C
Min
2.0
1.0
0.8
0.5
1.2
0.8
Max
13.0
8.0
5.5
4.8
6.0
5.3
1.0
0.8
15.0
9.0
6.5
5.8
13.0
8.5
6.0
5.0
ns
ns
ns
ns
C
L
=
50 pF
RD
=
500Ω
S
1
=
OPEN
C
L
=
50 pF
RD
=
500Ω
S
1
=
OPEN
C
L
=
50 pF
RD, RU
=
500Ω
S
1
=
GND for t
PZH
S
1
=
V
I
for t
PZL
V
I
=
2
×
V
CC
C
L
=
50 pF
RD, RU
=
500Ω
S
1
=
GND for t
PHZ
S
1
=
V
I
for t
PLZ
V
I
=
2
×
V
CC
pF
pF
(Note 6)
Figure 2
Figures
1, 3
Figures
1, 3
Figures
1, 3
ns
Units
Conditions
C
L
=
15 pF
RD
=
1 MΩ
S
1
=
OPEN
Figures
1, 3
Figure
Number
Figures
1, 3
Note 5:
Parameter guaranteed by design. t
OSLH
=
| t
PLHmax
−
t
PLHmin
|; t
OSHL
=
| t
PHLmax
−
t
PHLmin
|.
Note 6:
C
PD
is defined as the value of the internal equivalent capacitance which is derived from dynamic operating current consumption (I
CCD
) at no output
loading and operating at 50% duty cycle. (See Figure 2.) C
PD
is related to I
CCD
dynamic operating current by the expression:
I
CCD
=
(CPD) (V
CC
) (f
IN
)
+
(I
CC
static).
3
www.fairchildsemi.com
NC7WZ126
AC Loading and Waveforms
C
L
includes load and stray capacitance
Input PRR
=
1.0 MHz, t
w
=
500 ns
FIGURE 1. AC Test Circuit
Input
=
AC Waveform; t
r
=
t
f
=
1.8 ns;
PRR
=
10 MHz; Duty Cycle
=
50%
FIGURE 2. I
CCD
Test Circuit
FIGURE 3. AC Waveforms
www.fairchildsemi.com
4
工作这点儿事
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
