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7LVC240APWDHのメーカーはNXP Semiconductorsです、この部品の機能は「Octal buffer/line driver with 5-volt tolerant inputs/outputs; inverting 3-State」です。 |
部品番号 | 7LVC240APWDH |
| |
部品説明 | Octal buffer/line driver with 5-volt tolerant inputs/outputs; inverting 3-State | ||
メーカ | NXP Semiconductors | ||
ロゴ | |||
このページの下部にプレビューと7LVC240APWDHダウンロード(pdfファイル)リンクがあります。 Total 11 pages
INTEGRATED CIRCUITS
74LVC240A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs; inverting (3-State)
Product specification
IC24 Data Handbook
1998 May 20
Philips
Semiconductors
1 Page Philips Semiconductors
Octal buffer/line driver with 5-volt
tolerant inputs/outputs; inverting (3-State)
Product specification
74LVC240A
PIN DESCRIPTION
PIN NUMBER SYMBOL
FUNCTION
1
2, 4, 6, 8
3, 5, 7, 9
10
1OE
1A0 to 1A3
2Y0 to 2Y3
GND
Output enable input (active LOW)
Data inputs
Bus outputs
Ground (0V)
17, 15, 13, 11
18, 16, 14, 12
19
2A0 to 2A3
1Y0 to 1Y3
2OE
Bus inputs
Bus outputs
Output enable input (active-LOW)
20 VCC Positive power supply
PIN CONFIGURATION
1OE 1
1A0 2
2Y0 3
1A1 4
2Y1 5
1A2 6
2Y2 7
1A3 8
2Y3 9
GND 10
20 VCC
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
11 2A3
SV00212
LOGIC SYMBOL (IEEE/IEC)
1
EN
2
4
6
8
18
16
14
12
19
EN
11
13
15
17
9
7
5
3
SV00611
FUNCTION TABLE
INPUTS
nOE
L
nAn
L
LH
HX
H = HIGH voltage level
L = LOW voltage level
X = Don’t care
Z = High impedance OFF-state
LOGIC SYMBOL
2 1A 0
17 2A 0
4 1A 1
15 2A 1
6 1A 2
13 2A 2
8 1A 3
11 2A 3
1 1OE
19 2OE
OUTPUT
nYn
H
L
Z
1Y 0 18
2Y 0 3
1Y 1 16
2Y 1 5
1Y 2 14
2Y 2 7
1Y 3 12
2Y 3 9
SV00608
FUNCTIONAL DIAGRAM
2 1A 0
4 1A 1
6 1A 2
8 1A 3
1 1OE
17 2A 0
15 2A 1
13 2A 2
11 2A 3
19 2OE
1Y 0 18
1Y 1 16
1Y 2 14
1Y 3 12
2Y 0 3
2Y 1 5
2Y 2 7
2Y 3 9
SV00610
1998 May 20
3
3Pages Philips Semiconductors
Octal buffer/line driver with 5-volt
tolerant inputs/outputs; inverting (3-State)
Product specification
74LVC240A
AC WAVEFORMS
VM = 1.5V at VCC w 2.7V; VM = 0.5 VCC at VCC t 2.7V.
VOL and VOH are the typical output voltage drop that occur with the
output load.
VX = VOL + 0.3V at VCC w 2.7V; VX = VOL + 0.1 VCC at VCC t 2.7V
VY = VOH –0.3V at VCC w 2.7V; VY = VOH – 0.1 VCC at VCC t 2.7V
VI
INPUTS
VM
GND
VOH
tPHL
tPLH
OUTPUTS
VM
VOL
SW00221
Waveform 1. Inputs (1An, 2An) to outputs (1Yn, 2Yn)
propagation delays.
VI
nOE INPUT
GND
VCC
Qn OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
VOH
Qn OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
VM
tPLZ
tPZL
VX
tPHZ
VM
tPZH
outputs
enabled
VY
outputs
disabled
VM
outputs
enabled
SV00613
Waveform 2. 3-State enable and disable times.
TEST CIRCUIT
VCC
PULSE
GENERATOR
VIN
RT
D.U.T.
VOUT
50pF
S1
2<VCC
Open
GND
500Ω
500Ω
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
SWITCH
Open
2<VCC
GND
VCC
t 2.7V
2.7 – 3.6V
VI
VCC
2.7V
DEFINITIONS
RT = Termination resistance should be equal to ZOUT
of pulse generators.
SW00233
Waveform 3. Load circuitry for switching times.
1998 May 20
6
6 Page | |||
ページ | 合計 : 11 ページ | ||
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PDF ダウンロード | [ 7LVC240APWDH データシート.PDF ] |
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部品番号 | 部品説明 | メーカ |
7LVC240APWDH | Octal buffer/line driver with 5-volt tolerant inputs/outputs; inverting 3-State | NXP Semiconductors |