- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369312 > 74LS147 (Texas Instruments, Inc.) 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS PDF資料下載
參數(shù)資料
| 型號(hào)： | 74LS147 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS |
| 中文描述： | 10線的4線和8線三線優(yōu)先編碼器 |
| 文件頁數(shù)： | 12/22頁 |
| 文件大?。?/td> | 623K |
| 代理商： | 74LS147 |
SDLS053B OCTOBER 1976 REVISED MAY 2004
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
SERIES 54LS/74LS DEVICES
tPHL
tPLH
tPLH
tPHL
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
High-Level
Pulse
Low-Level
Pulse
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
Out-of-Phase
Output
(see Note D)
3 V
0 V
VOL
VOH
VOH
VOL
In-Phase
Output
(see Note D)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VCC
RL
Test
Point
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT
FOR 2-STATE TOTEM-POLE OUTPUTS
(see Note B)
VCC
RL
From Output
Under Test
(see Note A)
Test
Point
(see Note B)
VCC
RL
From Output
Under Test
CL
(see Note A)
Test
Point
5 k
NOTES: A. CL includes probe and jig capacitance.
B. All diodes are 1N3064 or equivalent.
C. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
D. S1 and S2 are closed for tPLH, tPHL, tPHZ, and tPLZ; S1 is open, and S2 is closed for tPZH; S1 is closed, and S2 is open for tPZL.
E. Phase relationships between inputs and outputs have been chosen arbitrarily for these examples.
F. All input pulses are supplied by generators having the following characteristics: PRR
≤
1 MHz, ZO
≈
50
, tr
≤
1.5 ns, tf
≤
2.6 ns.
G. The outputs are measured one at a time, with one input transition per measurement.
S1
S2
tPHZ
tPLZ
tPZL
tPZH
3 V
3 V
0 V
0 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing
Input
Data
Input
3 V
0 V
Output
Control
(low-level
enabling)
Waveform 1
(see Notes C
and D)
Waveform 2
(see Notes C
and D)
≈
1.5 V
VOH 0.5 V
VOL + 0.5 V
≈
1.5 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
tw
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
VOL
VOH
Figure 2. Load Circuits and Voltage Waveforms
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74148 | 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS |
| 74LS147 | 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS |
| 74LS148 | 8-line-to-3-line Octal Priority Encoders |
| 74LS148 | 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS |
| 74LS148 | 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LS148 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:LOW POWER SCHOTTKY |
| 74LS148N | 制造商:Texas Instruments 功能描述: |
| 74LS14DC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74LS14FP-E | 制造商:Renesas Electronics 功能描述:Cut Tape 制造商:Renesas 功能描述:Inverter Schmitt Trigger 6-Element Bipolar 14-Pin SOP |
| 74LS14N | 制造商:SIG 功能描述:74LS14N 制造商: 功能描述: 制造商:undefined 功能描述: 制造商:Misc 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。