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HD74LS148 数据表(PDF) 4 Page - Renesas Technology Corp

部件名 HD74LS148
功能描述  8-line-to-3-line Octal Priority Encoder
PDF  6 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

HD74LS148 数据表(HTML) 4 Page - Renesas Technology Corp

  HD74LS148 Datasheet HTML 1Page - Renesas Technology Corp HD74LS148 Datasheet HTML 2Page - Renesas Technology Corp HD74LS148 Datasheet HTML 3Page - Renesas Technology Corp HD74LS148 Datasheet HTML 4Page - Renesas Technology Corp HD74LS148 Datasheet HTML 5Page - Renesas Technology Corp HD74LS148 Datasheet HTML 6Page - Renesas Technology Corp  
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HD74LS148
Rev.2.00, Feb.18.2005, page 4 of 5
Testing Method
Test Circuit
4.5V
EO
Load circuit 1
Output
VCC
RL
CL
Input
P.G.
Zout = 50
Ω
7
5
6
3
4
EI
0
1
2
A0
A1
A2
GS
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Same as Load Circuit 1.
Output
Notes:
1.
CL includes probe and jig capacitance.
2.
All diodes are 1S2074(H).
Waveform
tPLH
tPHL
VOH
VOL
0 V
3 V
VOH
VOL
tPHL
tPLH
10%
90%
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
10%
90%
Input
In phase output
Out of phase output
tTLH
tTHL
Note:
Input pulse; tTLH
≤ 15 ns, t
THL
≤ 6 ns, PRR = 1 MHz, duty cycle 50%



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