參數(shù)資料
型號(hào)： SN54LS240
廠商： Motorola, Inc.
英文描述： Dual 1-of-4 Decoder/Demultiplexer; Package: SOIC 16 LEAD; No of Pins: 16; Container: Rail; Qty per Container: 48
中文描述： 八路緩沖器/線路驅(qū)動(dòng)器，具有三態(tài)輸出
文件頁(yè)數(shù)： 10/16頁(yè)
文件大小： 247K
代理商： SN54LS240
SN54LS240, SN54LS241, SN54LS244, SN54S240, SN54S241, SN54S244
SN74LS240, SN74LS241, SN74LS244, SN74S240, SN74S241, SN74S244
OCTAL BUFFERS AND LINE DRIVERS WITH 3-STATE OUTPUTS
SDLS144B
–
APRIL 1985
–
REVISED FEBRUARY 2002
10
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
CL
(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
≤
15 ns, tf
≤
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
–
0.3 V
VOL + 0.3 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 1. Load Circuits and Voltage Waveforms
相關(guān)PDF資料
PDF描述
SN54LS240J Dual 1-of-4 Decoder/Demultiplexer; Package: TSSOP-16; No of Pins: 16; Container: Tape and Reel; Qty per Container: 2500
SN54S253FK DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74S253D DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN54S253J Replaced by BQ24750 : Advanced Multi-Cell Battery Charger and System Power Selector 40-VQFN -40 to 85
SN54S253W DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SN54LS240J 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Texas Instruments 功能描述:BFFR/LINE DRVR 8CH INV 3-ST BIPOLAR 20CDIP - Rail/Tube
SN54LS240W 制造商:Texas Instruments 功能描述:
SN54LS241J 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk
SN54LS243J 制造商:Texas Instruments 功能描述:Bus XCVR Single 4-CH 3-ST 14-Pin CDIP Tube
SN54LS244J 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Texas Instruments 功能描述:BFFR/LINE DRVR 8CH NON-INV 3-ST BIPOLAR 20CDIP - Rail/Tube 制造商:Texas Instruments 功能描述:Octal buffer/line driver,SN54LS244J
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