參數(shù)資料
型號(hào): 74LVT125
廠商: NXP Semiconductors N.V.
英文描述: 3.3V Quad buffer 3-State
中文描述: 3.3四緩沖三態(tài)
文件頁(yè)數(shù): 8/15頁(yè)
文件大?。?/td> 93K
代理商: 74LVT125
9397 750 14703
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 05 — 10 February 2005
8 of 15
Philips Semiconductors
74LVT125
3.3 V quad buffer; 3-state
V
M
= 1.5 V.
a. Input pulse definition
Test data is given in
Table 9
.
Definitions test circuit:
R
L
= Load resistor.
C
L
= Load capacitance including jig and probe capacitance.
R
T
= Termination resistance should be equal to output impedance Z
o
of the pulse generator.
V
EXT
= Test voltage for switching times.
b. Test circuit
Fig 8.
Load circuitry for switching times
Table 9:
Input
V
I
2.7 V
Test data
Load
C
L
50 pF
V
EXT
t
PHZ
, t
PZH
t
PLZ
, t
PZL
GND
f
i
10 MHz 500 ns
t
W
t
r
, t
f
2.5 ns
R
L
500
t
PLH
, t
PHL
open
6 V
001aac221
V
M
V
M
t
W
t
W
10 %
90 %
90 %
0 V
V
I
V
I
negative
pulse
positive
pulse
0 V
V
M
V
M
90 %
10 %
10 %
t
THL
(t
f
)
t
TLH
(t
r
)
t
TLH
(t
r
)
t
THL
(t
f
)
V
EXT
V
CC
V
I
V
O
mna616
D.U.T.
C
L
R
T
R
L
R
L
PULSE
GENERATOR
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