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74LV157PWDH Arkusz danych(PDF) 6 Page - NXP Semiconductors

Numer części 74LV157PWDH
Szczegółowy opis  Quad 2-input multiplexer
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Producent  PHILIPS [NXP Semiconductors]
Strona internetowa  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LV157PWDH Arkusz danych(HTML) 6 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LV157
Quad 2-input multiplexer
1998 Apr 30
6
AC CHARACTERISTICS
GND = 0V; tr = tf = 2.5ns; CL = 50pF; RL = KΩ
CONDITION
LIMITS
SYMBOL
PARAMETER
WAVEFORM
CONDITION
–40 to +85
°C
–40 to +125
°C
UNIT
VCC(V)
MIN
TYP1
MAX
MIN
MAX
1.2
65
tPHL/tPLH
Propagation delay
nl0 to nY;
Figures 1 2
2.0
22
43
51
ns
tPHL/tPLH
nl0 to nY;
nl1 to nY
Figures 1, 2
2.7
16
31
38
ns
1
3.0 to 3.6
122
25
30
1.2
70
tPHL/tPLH
Propagation delay
Figures 1 2
2.0
24
44
54
ns
tPHL/tPLH
gy
E to nY
Figures 1, 2
2.7
18
33
40
ns
3.0 to 3.6
132
26
32
1.2
75
t
/t
Propagation delay
Figures 1 2
2.0
26
49
60
ns
tPHL/tPLH
gy
S to nY
Figures 1, 2
2.7
19
36
44
ns
3.0 to 3.6
142
29
35
NOTES:
1. Unless otherwise stated, all typical values are measured at Tamb = 25°C
2. Typical values are measured at VCC = 3.3 V.
AC WAVEFORMS
VM = 1.5 V at VCC ≥ 2.7 V;
VM = 0.5 V × VCC at VCC < 2.7 V.
VOL and VOH are the typical output voltage drop that occur with the
output load.
SV00567
V M
E INPUT
nY OUTPUT
V M
tPLH
tPHL
GND
V CC
V OL
V OH
Figure 1. Enable input (E) to output (nY)
propagation delays and output transition times.
SV00568
V M
nI 0 , nI1 , S
INPUT
nY OUTPUT
V M
tPLH
tPHL
GND
V CC
V OL
V OH
Figure 2. Data inputs (nln) and common data select input (S) to
output (nY) propagation delays.
TEST CIRCUIT
PULSE
GENERATOR
RT
VI
D.U.T.
VO
CL
RL = 1k
VCC
Test Circuit for switching times
DEFINITIONS
VCC
VI
< 2.7V
VCC
TEST
tPLH/tPHL
RT = Termination resistance should be equal to ZOUT of pulse generators.
50pF
SV00901
RL = Load resistor
CL = Load capacitance includes jig and probe capacitance
2.7–3.6V
2.7V
Figure 3. Load circuitry for switching times.


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