參數(shù)資料
型號(hào)： 74LVC240A
廠商： NXP Semiconductors N.V.
英文描述： Octal buffer/line driver with 5-volt tolerant inputs/outputs; inverting (3-State)(反相,5V輸入/輸出容限的八緩沖器/線驅(qū)動(dòng)器（三態(tài)）)
中文描述： 八路緩沖器/線路驅(qū)動(dòng)器5伏容限輸入/輸出;反相（3態(tài)）（，5V的輸入/輸出容限的八緩沖器反相/線驅(qū)動(dòng)器（三態(tài)））
文件頁(yè)數(shù)： 2/11頁(yè)
文件大?。?/td> 96K
代理商： 74LVC240A
Philips Semiconductors
Product specification
74LVC240A
Octal buffer/line driver with 5-volt
tolerant inputs/outputs; inverting (3-State)
2
1998 May 20
853-1981 19419
FEATURES
5-volt tolerant inputs/outputs, for interfacing with 5-volt logic
Supply voltage range of 1.2V to 3.6V
Complies with JEDEC standard no. 8-1A
CMOS low power consumption
Direct interface with TTL levels
High impedance when V
CC
= 0V
DESCRIPTION
The 74LVC240A is a high-performance, low-power, low-voltage,
Si-gate CMOS device, superior to most advanced CMOS
compatible TTL families.
Inputs can be driven from either 3.3V or 5V devices. In 3-State
operation, outputs can handle 5V. These features allow the use of
these devices as translators in a mixed 3.3V/5V environment.
The ‘240A is an octal non-inverting buffer/line driver with 3-State
outputs. The 3-State outputs are controlled by the output enable
inputs 1OE and 2OE. A HIGH on nOE causes the outputs to
assume a high impedance OFF-state. Schmitt-trigger action at all
inputs makes the circuit highly tolerant for slower input rise and fall
times.
The ’240’ is functionally identical to the ’244’, but the ’244’ has
inverting outputs.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
SYMBOL
2.5 ns
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
/t
PLH
Propagation delay
1A
n
to 1Y
n;
2A
n
to 2Y
n
Input capacitance
C
L
= 50pF
V
CC
= 3.3V
3.5
ns
C
I
5.0
pF
C
PD
Power dissipation capacitance per
buffer
Notes 1 and 2
20
pF
NOTE:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in W):
P
D
= C
PD
x V
CC2
x f
i
+ (C
L
x V
CC2
x f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacity in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
(C
L
x V
CC2
x f
o
) = sum of outputs.
2. The condition is V
I
= GND to V
CC
ORDERING INFORMATION
PACKAGES
TEMPERATURE
RANGE
OUTSIDE
NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic Small Outline (SO)
–40
°
C to +85
°
C
74LVC240A D
74LVC240A D
SOT163-1
20-Pin Plastic Shrink Small Outline (SSOP) Type II
–40
°
C to +85
°
C
74LVC240A DB
74LVC240A DB
SOT339-1
20-Pin Plastic Thin Shrink Small Outline (TSSOP) Type I
–40
°
C to +85
°
C
74LVC240A PW
7LVC240APW DH
SOT360-1
相關(guān)PDF資料
PDF描述
74LVC241A Octal D-Type Flip-Flops With Clear 20-TSSOP -40 to 85
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74LVC240ABQ 制造商:NXP Semiconductors 功能描述:IC OCT BUFF/DRV TRI-ST DHV
74LVC240ABQ,115 功能描述:緩沖器和線路驅(qū)動(dòng)器 3.3V OCT BUFF/LINE RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
74LVC240ABQ-G 功能描述:緩沖器和線路驅(qū)動(dòng)器 3.3V OCT BUFF/LINE DVR INV 3-S RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
74LVC240AD 制造商:NXP Semiconductors 功能描述:Octal line driver,Tristate,74LVC240AD
74LVC240AD,112 功能描述:緩沖器和線路驅(qū)動(dòng)器 3.3V OCTAL 3-S BUF INV RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel
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