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PDF TC74HC280AF Data sheet ( Hoja de datos )
| Número de pieza | TC74HC280AF | |
| Descripción | 9-Bit Parity Generator/Checker | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TC74HC280AF (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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TC74HC280AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC280AP, TC74HC280AF
9-Bit Parity Generator/Checker
The TC74HC280A is a high speed CMOS 9-BIT PARITY
GENERATOR fabricated with silicon gate C2MOS technology.
It achieves the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
The TC74HC280A is composed of nine data inputs A thru I and
odd/even parity outputs Σ ODD and Σ EVEN.
The odd parity output is high when an odd number of data
inputs are high. The even parity output is high when an even
number of data inputs are high.
The word-length capability is easily expanded by cascading.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
Features
• High speed: tpd = 22 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28% VCC (min)
• Output drive capability: 10 LSTTL loads
• Symmetrical output impedance: |IOH| = IOL = 4 mA (min)
• Balanced propagation delays: tpLH ∼− tpHL
• Wide operating voltage range: VCC (opr) = 2 to 6 V
• Pin and function compatible with 74LS280
Pin Assignment
TC74HC280AP
TC74HC280AF
Weight
DIP14-P-300-2.54
SOP14-P-300-1.27A
: 0.96 g (typ.)
: 0.18 g (typ.)
NC: No connection
Start of commercial production
1987-11
1 2014-03-01
1 page  
TC74HC280AP/AF
Electrical Characteristics
DC Characteristics
Characteristics
High-level input
voltage
Low-level input
voltage
High-level output
voltage
Low-level output
voltage
Input leakage
current
Quiescent supply
current
Symbol
VIH
VIL
VOH
VOL
IIN
Test Condition
Ta = 25°C
⎯
⎯
VIN
= VIH or VIL
IOH = −20 μA
IOH = −4 mA
IOH = −5.2 mA
VIN
= VIH or VIL
IOL = 20 μA
IOL = 4 mA
IOL = 5.2 mA
VCC (V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
Min
1.50
3.15
4.20
⎯
⎯
⎯
1.9
4.4
5.9
4.18
5.68
⎯
⎯
⎯
⎯
⎯
Typ.
⎯
⎯
⎯
⎯
⎯
⎯
2.0
4.5
6.0
4.31
5.80
0.0
0.0
0.0
0.17
0.18
Max
⎯
⎯
⎯
0.50
1.35
1.80
⎯
⎯
⎯
⎯
⎯
0.1
0.1
0.1
0.26
0.26
VIN = VCC or GND
6.0 ⎯ ⎯ ±0.1
ICC VIN = VCC or GND
6.0 ⎯ ⎯ 4.0
Ta =
−40 to 85°C
Min Max
1.50 ⎯
3.15 ⎯
4.20 ⎯
⎯ 0.50
⎯ 1.35
⎯ 1.80
1.9 ⎯
4.4 ⎯
5.9 ⎯
4.13 ⎯
5.63 ⎯
⎯ 0.1
⎯ 0.1
⎯ 0.1
⎯ 0.33
⎯ 0.33
⎯ ±1.0
⎯ 40.0
Unit
V
V
V
V
μA
μA
AC Characteristics (CL = 15 pF, VCC = 5 V, Ta = 25°C, input: tr = tf = 6 ns)
Characteristics
Symbol
Test Condition
Min Typ. Max Unit
Output transition time
Propagation delay time
tTLH
tTHL
tpLH
tpHL
⎯
⎯4
8 ns
⎯ ⎯ 22 35 ns
5 2014-03-01
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet TC74HC280AF.PDF ] | |
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