參數(shù)資料
型號: 74LVC38A
廠商: NXP Semiconductors N.V.
英文描述: Hex Inverting Buffers And Line Drivers With 3-State Outputs 16-SOIC -40 to 85
中文描述: 四2輸入與非門(開漏)
文件頁數(shù): 8/14頁
文件大?。?/td> 99K
代理商: 74LVC38A
2004 Mar 22
8
Philips Semiconductors
Product specification
Quad 2-input NAND gate (open drain)
74LVC38A
AC WAVEFORMS
handbook, full pagewidth
MNA700
tPLZ
VX
(3)
nY output
nA, nB input
VI
VCC
VM
(1)
VOL
(2)
GND
tPZL
VM
(1)
Fig.6 The input nA, nB to output nY propagation delays.
(1) V
M
= 1.5 V at V
CC
2.7 V.
V
M
= 0.5V
CC
at V
CC
< 2.7 V.
(2) V
OL
and V
OH
are typical output voltage drop that occur with the output load.
(3) V
X
= V
OL
+ 0.3 V at V
CC
2.7 V.
V
X
= V
OL
+ 0.15 V at V
CC
< 2.7 V.
Fig.7 Load circuitry for switching times.
Definitions for test circuits:
R
L
= Load resistor.
C
L
= Load capacitance including jig and probe capacitance.
R
T
= Termination resistance should be equal to the output impedance Z
o
of the pulse generator.
t
r
= t
f
2.5 ns; when measuring f
max
, there is no constraint on t
r
, t
f
with 50% duty factor.
Note
1.
The circuit performs better when R
L
= 1000
.
V
CC
V
EXT
V
I
C
L
R
L
1.2
2.7
3.3 to 3.6
2
×
V
CC
6 V
6 V
V
CC
2.7 V
2.7 V
30 pF
50 pF
50 pF
500
(1)
500
500
handbook, full pagewidth
VEXT
VCC
VI
VO
MNA616
D.U.T.
CL
RT
RL
RL
PULSE
GENERATOR
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