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參數(shù)資料
| 型號： | SNJ54ALS139J |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | ALS SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDIP16 |
| 封裝： | 0.300 INCH, CERAMIC, DIP-16 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大小： | 773K |
| 代理商： | SNJ54ALS139J |
SN54ALS139, SN74ALS139
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SDAS204A – APRIL 1982 – REVISED DECEMBER 1994
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/ 74ALS AND 54AS/ 74AS DEVICES
tPHZ
tPLZ
tPHL
tPLH
0.3 V
tPZL
tPZH
tPLH
tPHL
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
From Output
Under Test
Test
Point
R1
S1
CL
(see Note A)
7 V
1.3 V
3.5 V
0.3 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing
Input
Data
Input
1.3 V
3.5 V
0.3 V
High-Level
Pulse
Low-Level
Pulse
tw
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
Out-of-Phase
Output
(see Note C)
1.3 V
3.5 V
0.3 V
VOL
VOH
VOL
Output
Control
(low-level
enabling)
Waveform 1
S1 Closed
(see Note B)
Waveform 2
S1 Open
(see Note B)
[0 V
VOH
VOL
[3.5 V
In-Phase
Output
0.3 V
1.3 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
R2
VCC
RL
Test
Point
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
From Output
Under Test
Test
Point
CL
(see Note A)
RL
RL = R1 = R2
NOTES: A. CL includes probe and jig capacitance.
B. 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.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR
≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%.
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SNJ54ALS139W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS |
| SNJ54ALS151FK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-OF-8 DATA SELECTORS/MULTIPLEXERS |
| SNJ54ALS151J | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1-OF-8 DATA SELECTORS/MULTIPLEXERS |
| SNJ54ALS151W | 制造商:Texas Instruments 功能描述:Multiplexer 1-Element Bipolar 8-IN 16-Pin CFPAK Tube 制造商:Rochester Electronics LLC 功能描述:8414101FA, 1-OF-8 DATA SELECTOR/MUX - Bulk |
| SNJ54ALS153J | 制造商:Texas Instruments 功能描述: |
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