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参数资料
| 型号： | SN74LS148DE4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | LS SERIES, 8-BIT ENCODER, INVERTED OUTPUT, PDSO16 |
| 封装： | GREEN, PLASTIC, MS-012AC, SOIC-16 |
| 文件页数： | 2/26页 |
| 文件大小： | 831K |
| 代理商： | SN74LS148DE4 |
SN54147, SN54148, SN54LS147, SN54LS148
SN74147, SN74148 (TIM9907), SN74LS147, SN74LS148
10LINE TO 4LINE AND 8LINE TO 3LINE PRIORITY ENCODERS
SDLS053B OCTOBER 1976 REVISED MAY 2004
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
SN54LS147, SN74LS147 switching characteristics, VCC = 5 V, TA = 255C (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
WAVEFORM
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
Any
In-phase output
12
18
ns
tPHL
Any
In-phase output
CL = 15 pF,
12
18
ns
tPLH
Any
Out-of-phase output
CL = 15 pF,
RL = 2 k
21
33
ns
tPHL
Any
Out-of-phase output
RL = 2 k
15
23
ns
SN54LS148, SN74LS148 switching characteristics, VCC = 5 V, TA = 255C (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
WAVEFORM
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
1–7
A0, A1, or A2
In-phase output
14
18
ns
tPHL
1–7
A0, A1, or A2
In-phase output
15
25
ns
tPLH
1–7
A0, A1, or A2
Out-of-phase output
20
36
ns
tPHL
1–7
A0, A1, or A2
Out-of-phase output
16
29
ns
tPLH
0–7
EO
Out-of-phase output
7
18
ns
tPHL
0–7
EO
Out-of-phase output
25
40
ns
tPLH
0–7
GS
In-phase output
CL = 15 pF,
35
55
ns
tPHL
0–7
GS
In-phase output
CL = 15 pF,
RL = 2 k
9
21
ns
tPLH
EI
A0, A1, or A2
In-phase output
RL = 2 k
16
25
ns
tPHL
EI
A0, A1, or A2
In-phase output
12
25
ns
tPLH
EI
GS
In-phase output
12
17
ns
tPHL
EI
GS
In-phase output
14
36
ns
tPLH
EI
EO
In-phase output
12
21
ns
tPHL
EI
EO
In-phase output
23
35
ns
tPLH = propagation delay time, low-to-high-level output
tPHL = propagation delay time, high-to-low-level output
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相关代理商/技术参数 |
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|---|---|
| SN74LS148DG4 | 功能描述:编码器、解码器、复用器和解复用器 8 Ln to 3 Ln Priority Encoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LS148DR | 功能描述:编码器、解码器、复用器和解复用器 8 to 3 Priority RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LS148DR2 | 制造商:ON Semiconductor 功能描述:Encoder 8-to-3 Priority Bipolar 16-Pin SOIC T/R |
| SN74LS148DRE4 | 功能描述:编码器、解码器、复用器和解复用器 8-line to 3-line Priority encoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LS148DRG4 | 功能描述:编码器、解码器、复用器和解复用器 8 Ln to 3 Ln Priority Encoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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