參數(shù)資料
型號(hào): 74LVC27
廠商: NXP Semiconductors N.V.
英文描述: Quadruple 2-Input Positive-OR Gates 14-SSOP -40 to 85
中文描述: 三3輸入或非門
文件頁(yè)數(shù): 5/10頁(yè)
文件大?。?/td> 87K
代理商: 74LVC27
Philips Semiconductors
Product specification
74LVC27
Triple 3-input NOR gate
1998 Apr 28
5
AC CHARACTERISTICS
GND = 0 V; t
r
= t
f
2.5 ns; C
L
= 50 pF; R
L
= 500 ; T
amb
= –40 C to +85 C
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
±
0.3V
TYP
1
V
CC
= 2.7V
MIN
UNIT
MIN
MAX
MAX
t
PHL
/
t
PLH
Propagation delay
nA, nB, nC to nY
Figure 1, 2
3.4
5.9
7.0
ns
NOTE:
1. These typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
AC WAVEFORMS
V
M
= 1.5 V at V
CC
V
M
= 0.5 V
CC
at V
CC
< 2.7 V
V
OL
and V
OH
are the typical output voltage drop that occur with the
output load.
2.7 V
SV00420
VM
nA, nB, nC
INPUT
nY OUTPUT
VM
tPLH
tPHL
GND
VI
VOL
VOH
Figure 1. Input (nA, nB, nC) to output (nY) propagation delays.
TEST CIRCUIT
SWITCH POSITION
PULSE
GENERATOR
R
T
V
I
D.U.T.
V
O
C
L
V
CC
500
Open
GND
S
1
V
CC
V
I
< 2.7V
V
CC
TEST
S
1
t
PLH/
t
PHL
Open
2.7V
2.7–3.6V
50pF
500
2 * V
CC
SV00903
Figure 2. Load circuitry for switching times.
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