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74HC7240 PDF даташит

Спецификация 74HC7240 изготовлена ​​​​«STMicroelectronics» и имеет функцию, называемую «OCTAL BUS BUFFER».

Детали детали

Номер произв 74HC7240
Описание OCTAL BUS BUFFER
Производители STMicroelectronics
логотип STMicroelectronics логотип 

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74HC7240 Даташит, Описание, Даташиты
M54HC7240/7241/7244
M74HC7240/7241/7244
OCTAL BUS BUFFER WITH 3 STATE OUTPUTS
HC7240: INVERTED - HC7241/7244 NON INVERTED
. HIGH SPEED
tPD = 15 ns (TYP.) at VCC = 5V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) at TA = 25 oC
. HIGH NOISE IMMUNITY
VH = 1.1 V(TYP.) at VCC = 5V
. OUTPUT DRIVE CAPABILITY
15 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 6 mA (MIN)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2V to 6V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS240/241/244
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HCXXXXF1R M74HCXXXXM1R
M74HCXXXXB1R M74HCXXXXC1R
DESCRIPTION
The M54/74HC7240, HC7241 and HC7244 are high
speed CMOS OCTAL BUS BUFFERs fabricated in
silicon gate C2MOS technology.
They have the same high speed performance of
LSTTL combined with true CMOS low power
consumption.
governs four BUS BUFFERs.
The HC7240, HC7241 and HC7244 have the same
pin configuration and function as the HC240, HC241
and HC244 and they have a hysteresis
characteristics with each input so can be used as a
line receiver, etc.
The designer has a choise of select combination of
inverting and non-inverting outputs, symmetrical G
(active low output control) input, and
complementary G and G inputs. Each control input
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PIN CONNECTION (top view)
HC7240
HC7241
HC7244
www.DataSheet4U.com
October 1993
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74HC7240 Даташит, Описание, Даташиты
M54/M74HC7240/7241/7244
CHIP CARRIER
HC7240
HC7241
HC7244
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HC7241)
PIN No SYMBOL
1 1G
2, 4, 6, 8 1A1 to 1A4
9, 7, 5, 3 2Y1 to 2Y4
11, 13, 15, 2A1 to 2A4
17
18, 16, 14, 1Y1 to 1Y4
12
19 2G
10 GND
20 VCC
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NAME AND FUNCTION
Output Enable Input
Data Inputs
Data Outputs
Data Inputs
Data Outputs
Output Enabel Input
Ground (0V)
Positive Supply Voltage
PIN DESCRIPTION (HC7240)
PIN No
1
2, 4, 6, 8
9, 7, 5, 3
11, 13, 15,
17
18, 16, 14,
12
19
10
20
SYMBOL
1G
1A1 to 1A4
2Y1 to 2Y4
2A1 to 2A4
1Y1 to 1Y4
2G
GND
VCC
NAME AND FUNCTION
Output Enable Input
Data Inputs
Data Outputs
Data Inputs
Data Outputs
Output Enabel Input
Ground (0V)
Positive Supply Voltage
PIN DESCRIPTION (HC7244)
PIN No
1
2, 4, 6, 8
9, 7, 5, 3
11, 13, 15,
17
18, 16, 14,
12
19
10
20
SYMBOL
1G
1A1 to 1A4
2Y1 to 2Y4
2A1 to 2A4
1Y1 to 1Y4
2G
GND
VCC
NAME AND FUNCTION
Output Enable Input
Data Inputs
Data Outputs
Data Inputs
Data Outputs
Output Enabel Input
Ground (0V)
Positive Supply Voltage
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74HC7240 Даташит, Описание, Даташиты
IEC LOGIC SYMBOLS
HC7240
HC7241
M54/M74HC7240/7241/7244
HC7244
TRUTH TABLE
G
L
L
H
X: ”H” or ”L”
Z: High impedance
INPUT
G (HC7241)
H
H
L
An
L
H
X
CIRCUIT SCHEMATIC (1/8 PACKAGE)
HC7240
Yn (HC7240)
H
L
Z
OUTPUT
Yn (HC7241)
L
H
Z
Yn (HC7244)
L
H
Z
HC7244
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