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)
文件頁數(shù): 6/15頁
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
6 of 15
Philips Semiconductors
74LVT125
3.3 V quad buffer; 3-state
[1]
Typical values are measured at V
CC
= 3.3 V and T
amb
= 25
°
C.
Unused pins at V
CC
or GND.
This is the bus hold overdrive current required to force the input to the opposite logic state.
[2]
[3]
[4]
This parameter is valid for any V
CC
between 0 V and 1.2 V with a transition time of up to 10 ms. From V
CC
= 1.2 V to V
CC
= 3.3 V
±
0.3 V
a transition time of 100
μ
s is permitted. This parameter is valid for T
amb
= 25
°
C only.
I
CC
is measured with outputs pulled to V
CC
or GND.
This is the increase in supply current for each input at the specified voltage level other than V
CC
or GND.
[5]
[6]
11. Dynamic characteristics
I
EX
external current into output
output in HIGH-state when
V
O
> V
CC
; V
O
= 5.5 V and
V
CC
= 3.0 V
V
CC
1.2 V; V
O
= 0.5 V to V
CC
;
V
I
= GND or V
CC
;
nOE = don’t care
V
CC
= 3.6 V; V
I
= V
IH
or V
IL
output HIGH: V
O
= 3.0 V
output LOW: V
O
= 0.5 V
V
CC
= 3.6 V; V
I
= GND or V
CC
;
I
O
= 0 A
outputs HIGH
outputs LOW
outputs disabled
V
CC
= 3 V to 3.6 V; one input at
V
CC
0.6 V and other inputs at
V
CC
or GND;
V
I
= 0 V or 3.0 V
outputs disabled;
V
O
= 0 Vor 3.0 V
-
60
125
μ
A
I
PU
, I
PD
power-up or power-down
3-state output current
[4]
-
±
1
±
100
μ
A
I
OZ
3-state output current
-
-
1
1
5
5
μ
A
μ
A
I
CC
quiescent supply current
-
-
0.13
2
0.13
0.1
0.19
7
0.19
0.2
mA
mA
mA
mA
[5]
-
I
CC
additional supply current per
input pin
[6]
-
C
I
C
O
input capacitance
output capacitance
-
-
4
8
-
-
pF
pF
Table 7:
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Static characteristics
…continued
Min
Typ
Max
Unit
Table 8:
GND = 0 V; t
r
= t
f
= 2.5 ns; C
L
= 50 pF; R
L
= 500
; for test circuit see
Figure 8
.
Symbol Parameter
T
amb
=
40
°
C to +85
°
C
[1]
t
PLH
propagation delay nA to nY
Dynamic characteristics
Conditions
Min
Typ
Max
Unit
V
CC
= 2.7 V
V
CC
= 3.3 V
±
0.3 V
V
CC
= 2.7 V
V
CC
= 3.3 V
±
0.3 V
V
CC
= 2.7 V
V
CC
= 3.3 V
±
0.3 V
V
CC
= 2.7 V
V
CC
= 3.3 V
±
0.3 V
-
1.0
-
1.0
-
1.0
-
1.1
-
2.7
-
2.9
-
3.4
-
3.4
4.5
4.0
4.9
3.9
6.0
4.7
6.5
4.7
ns
ns
ns
ns
ns
ns
ns
ns
t
PHL
propagation delay nA to nY
t
PZH
output enable time nOE to nY
t
PZL
output enable time nOE to nY
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