HC240D PDF даташит
Спецификация HC240D изготовлена «NXP Semiconductors» и имеет функцию, называемую « 74HC240». |
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Детали детали
Номер произв | HC240D |
Описание | 74HC240 |
Производители | NXP Semiconductors |
логотип |
7 Pages
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INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
www.DataSheet4U.com
• The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications
• The IC06 74HC/HCT/HCU/HCMOS Logic Package Information
• The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT240
Octal buffer/line driver; 3-state;
inverting
Product specification
File under Integrated Circuits, IC06
December 1990
No Preview Available ! |
Philips Semiconductors
Octal buffer/line driver; 3-state;
inverting
Product specification
74HC/HCT240
FEATURES
GENERAL DESCRIPTION
• Output capability: bus driver
• ICC category: MSI
The 74HC/HCT240 are high-speed Si-gate CMOS devices
and are pin compatible with low power Schottky TTL
(LSTTL). They are specified in compliance with JEDEC
standard no. 7A.
www.DataSheet4U.com
The 74HC/HCT240 are octal inverting buffer/line drivers
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. The “240” is identical to the “244” but has
inverting outputs.
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns
SYMBOL PARAMETER
tPHL/ tPLH
CI
CPD
propagation delay
1An to 1Yn;
2An to 2Yn
input capacitance
power dissipation capacitance per buffer
CONDITIONS
CL = 15 pF; VCC = 5 V
notes 1 and 2
TYPICAL
HC
9
HCT
9
UNIT
ns
3.5 3.5 pF
30 30 pF
Notes
1. CPD is used to determine the dynamic power dissipation (PD in µW):
PD = CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where:
fi = input frequency in MHz
fo = output frequency in MHz
∑ (CL × VCC2 × fo) = sum of outputs
CL = output load capacitance in pF
VCC = supply voltage in V
2. For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC − 1.5 V
ORDERING INFORMATION
See “74HC/HCT/HCU/HCMOS Logic Package Information”.
December 1990
2
No Preview Available ! |
Philips Semiconductors
Octal buffer/line driver; 3-state; inverting
Product specification
74HC/HCT240
PIN DESCRIPTION
PIN NO.
1
2, 4, 6, 8
3, 5, 7, 9
10
17, 15, 13, 11
www.DataSheet41U8.c,o1m6, 14, 12
19
20
SYMBOL
1OE
1A0 to 1A3
2Y0 to 2Y3
GND
2A0 to 2A3
1Y0 to 1Y3
2OE
VCC
NAME AND FUNCTION
output enable input (active LOW)
data inputs
bus outputs
ground (0 V)
data inputs
bus outputs
output enable input (active LOW)
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
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HC240D | 74HC240 | NXP Semiconductors |
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