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Numéro de référence | M74HC283 | ||
Description | 4 BIT BINARY FULL ADDER | ||
Fabricant | ST Microelectronics | ||
Logo | |||
1 Page
M54HC283
M74HC283
. HIGH SPEED
tPD = 17 ns (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) AT 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 V TO 6 V
. FULL-CARRY LOOK-AHEAD ACROSS THE
FOUR BITS
. PARTIAL LOOK-AHEAD WITHTHE ECONOMY
OF RIPPLY CARRY
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS283
4 BIT BINARY FULL ADDER
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M 54HC 28 3F 1R
M 74H C2 83 M1 R
M 74HC 28 3B 1R
M 74H C2 83 C1 R
PIN CONNECTIONS (top view)
DESCRIPTION
The M54/74HC283 is a high speed CMOS 4-BIT BI-
NARY FULL ADDER fabricated in silicon gate
C2MOS technology. It has the same high speed per-
formance of LSTTL combined with true CMOS low
power consumption.
Sum (Σ) outputs are provided for each bit and a re-
sultant carry (C4) is obtained from the fourth bit. This
adder features full internal look ahead across all four
bits. A 4 x n binary adder is easily built up by cas-
cading without any additional logic.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
October 1992
NC =
No Internal
Connection
1/10
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Pages | Pages 10 | ||
Télécharger | [ M74HC283 ] |
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