參數(shù)資料
型號(hào): 74LVC125A
廠商: NXP Semiconductors N.V.
英文描述: Data Selectors/Multiplexers With 3-State Outputs 16-SOIC -40 to 85
中文描述: 四緩沖器/線路驅(qū)動(dòng)器5伏耐輸入/輸出三態(tài)
文件頁(yè)數(shù): 6/10頁(yè)
文件大?。?/td> 94K
代理商: 74LVC125A
Philips Semiconductors
Product specification
74LVC125A
Quad buffer/line driver with 5-volt
tolerant inputs/outputs (3-state)
1998 Apr 28
6
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.
V
X
= V
OL
+ 0.3 V at V
CC
2.7 V
V
X
= V
OL
+ 0.1 V at V
CC
> 2.7 V
V
Y
= V
OH
– 0.3 V at V
CC
2.7 V
V
Y
= V
OH
– 0.1 V at V
CC
< 2.7 V
2.7 V;
SV00459
VM
nA INPUT
nY OUTPUT
VM
tPLH
tPHL
GND
V
l
VOL
VOH
Figure 1. Input (nA) to output (nY) propagation delays.
SV00458
outputs
disabled
outputs
enabled
outputs
tPHZ
tPZH
tPZL
tPLZ
VX
VY
VM
VM
nOE Input
VI
GND
VCC
VOL
VOH
HIGOUTPUT
GND
OUTPUT
LOW-to-OFF
VM
Figure 2. 3-state enable and disable times.
TEST CIRCUIT
PULSE
GENERATOR
R
T
V
IN
D.U.T.
V
OUT
C
L
V
CC
R
L
=500
SWITCH POSITION
TEST
t
PLH
/t
PHL
t
PLZ
/t
PZL
t
PHZ
/t
PZH
SWITCH
Open
2
V
CC
GND
Test Circuit for 3-State Outputs
Open
GND
S
1
2
V
CC
DEFINITIONS
R
L
= Load resistor
C
L
= Load capacitance includes jig and probe capacitance
R
T
=Termination resistance should be equal to Z
OUT
of pulse generators.
V
CC
2.7V
2.7 – 3.6V
V
IN
V
CC
2.7V
SW00047
R
L
=500
Figure 3. Load circuitry for switching times.
相關(guān)PDF資料
PDF描述
74LVC125 Quad buffer/line driver; 3-State
74LVC125D Quad buffer/line driver; 3-State
74LVC125PW Data Selectors/Multiplexers With 3-State Outputs 16-SOIC -40 to 85
74LVC125PWDH Data Selectors/Multiplexers With 3-State Outputs 16-SOIC -40 to 85
74LVC125DB Quad buffer/line driver; 3-State
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