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Número de pieza | TC74AC280P | |
Descripción | 9-BIT PARITY GENERATOR CHECKER | |
Fabricantes | Toshiba Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de TC74AC280P (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
No Preview Available ! TC74AC280P/F/FN
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74AC280P,TC74AC280F,TC74AC280FN
9-Bit Parity Generator/Checker
The TC74AC280 is an advanced high speed CMOS 9-BIT
PARITY GENERATOR fabricated with silicon gate and
double-layer metal wiring C2MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
The TC74AC280 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 = 7.8 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 8 μA (max) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28% VCC (min)
• Symmetrical output impedance: |IOH| = IOL = 24 mA (min)
Capability of driving 50 Ω
transmission lines.
• Balanced propagation delays: tpLH ∼− tpHL
• Wide operating voltage range: VCC (opr) = 2~5.5 V
• Pin and function compatible with 74F280
Pin Assignment
Note: xxxFN (JEDEC SOP) is not available in
Japan.
TC74AC280P
TC74AC280F
TC74AC280FN
Weight
DIP14-P-300-2.54
SOP14-P-300-1.27A
SOL14-P-150-1.27
: 0.96 g (typ.)
: 0.18 g (typ.)
: 0.12 g (typ.)
NC: No connection
1
2007-10-01
1 page TC74AC280P/F/FN
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
⎯
⎯
IOH = −50 μA
VIN
= VIH or
VIL IOH = −4 mA
IOH = −24 mA
IOH = −75 mA
VIN
= VIH or
VIL
IOL = 50 μA
IOL = 12 mA
IOL = 24 mA
IOL = 75 mA
VCC
(V)
2.0
3.0
5.5
2.0
3.0
5.5
2.0
3.0
4.5
3.0
4.5
(Note) 5.5
2.0
3.0
4.5
3.0
4.5
(Note) 5.5
VIN = VCC or GND
5.5
Ta = 25°C
Min Typ. Max
1.50 ⎯
⎯
2.10 ⎯
⎯
3.85 ⎯
⎯
⎯ ⎯ 0.50
⎯ ⎯ 0.90
⎯ ⎯ 1.65
1.9 2.0
⎯
2.9 3.0
⎯
4.4 4.5
⎯
2.58 ⎯
⎯
3.94 ⎯
⎯
⎯⎯⎯
⎯ 0.0 0.1
⎯ 0.0 0.1
⎯ 0.0 0.1
⎯ ⎯ 0.36
⎯ ⎯ 0.36
⎯⎯⎯
⎯ ⎯ ±0.1
Ta = −40~85°C
Min Max
1.50 ⎯
2.10 ⎯
3.85 ⎯
⎯ 0.50
⎯ 0.90
⎯ 1.65
1.9 ⎯
2.9 ⎯
4.4 ⎯
2.48 ⎯
3.80 ⎯
3.85 ⎯
⎯ 0.1
⎯ 0.1
⎯ 0.1
0.44
⎯
0.44
⎯
1.65
⎯ ±1.0
Unit
V
V
V
V
μA
ICC VIN = VCC or GND
5.5 ⎯
⎯ 8.0 ⎯ 80.0 μA
Note:
This spec indicates the capability of driving 50 Ω transmission lines.
One output should be tested at a time for a 10 ms maximum duration.
AC Characteristics (CL = 50 pF, RL = 500 Ω, input: tr = tf = 3 ns)
Characteristics
Propagation delay
time
Input capacitance
Power dissipation
capacitance
Symbol
tpLH
tpHL
CIN
CPD
(Note)
Test Condition
⎯
⎯
⎯
VCC (V)
3.3 ± 0.3
5.0 ± 0.5
Ta = 25°C
Min Typ. Max
⎯ 12.9 21.9
⎯ 8.5 12.7
⎯ 5 10
⎯ 80 ⎯
Ta = −40~85°C
Min Max
1.0 25.0
1.0 14.5
⎯ 10
⎯⎯
Unit
ns
pF
pF
Note:
CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load.
Average operating current can be obtained by the equation:
ICC (opr) = CPD・VCC・fIN + ICC
5 2007-10-01
5 Page |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet TC74AC280P.PDF ] |
Número de pieza | Descripción | Fabricantes |
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