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M74HC283

ST Microelectronics
Part Number M74HC283
Manufacturer ST Microelectronics
Description 4 BIT BINARY FULL ADDER
Published May 6, 2005
Detailed Description M54HC283 M74HC283 4 BIT BINARY FULL ADDER . . . . . . . . . . HIGH SPEED tPD = 17 ns (TYP.) AT VCC = 5 V LOW POWER DIS...
Datasheet PDF File M74HC283 PDF File

M74HC283
M74HC283

Overview
M54HC283 M74HC283 4 BIT BINARY FULL ADDER .
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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 WITH THE ECONOMY OF RIPPLY CARRY PIN AND FUNCTION COMPATIBLE WITH 54/74LS283 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC283F1R M74HC283M1R M74HC283B1R M74HC283C1R PIN CONNECTIONS (top view) DESCRIPTION The M54/74HC283 is a high speed CMOS 4-BIT BINARY FULL ADDER fabricated in silicon gate 2 C MOS technology.
It has the same high speed performance of LSTTL combined with true CMOS low power consumption.
Sum (Σ) outputs are provided for each bit and a resultant 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 cascading without any additional logic.
All inputs are equipped with protection circuits against static discharge and transient excess voltage.
October 1992 NC = No Internal Connection 1/10 M54/M74HC283 TRUTH TABLE (1 bit) INPUTS Bn L L L L H H H H An L L H H L L H H Cn-1 L H L H L H L H OUTPUTS Σn L H H L H L L H Cn L L L H L H H H BLOCK DIAGRAM LOGIC DIAGRAM 2/10 M54/M74HC283 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 4, 1, 13, 10 5, 3, 14, 12 6, 2, 15, 11 7 9 8 16 SYMBOL Σ1 to Σ4 A1 to A4 B1 to B4 C0 C4 GND V CC NAME AND FUNCTION Sum Outputs A Operand Inputs B Operand Inputs Carry Input Carry Output Ground (0V) Positive Supply Voltage IEC LOGIC SYMBOL ABSOLUTE MAXIMUM RATING Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC ...


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