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MC14008B-MC14008BCP-MC14008BDR2
4-Bit Full Adder
MC14008B
4-Bit Full Adder
The MC14008B 4−bit full adder is constructed with MOS
P−Channel and N−Channel enhancement mode devices in a single
monolithic structure. This device consists of four full adders with fast
internal look−ahead carry output. It is useful in binary addition and
other arithmetic applications. The fast parallel carry output bit allows
high−speed operation when used with other adders in a system.
Features Look−Ahead Carry Output Diode Protection on All Inputs All Outputs Buffered Supply Voltage Range = 3.0 Vdc to 18 Vdc Capable of Driving Two Low−Power TTL Loads or One
Low−Power Schottky TTL Load Over the Rated Temperature Range Pin−for−Pin Replacement for CD4008B Pb−Free Packages are Available*
MAXIMUM RATINGS (Voltages Referenced to VSS)Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/�C From 65�C To 125�C
This device contains protection circuitry to guard against damage due to high
static voltages or electric fields. However, precautions must be taken to avoid
applications of any voltage higher than maximum rated voltages to this
high−impedance circuit. For proper operation, Vin and Vout should be constrained
to the range VSS � (Vin or Vout) � VDD.
Unused inputs must always be tied to an appropriate logic voltage level
(e.g., either VSS or VDD). Unused outputs must be left open.
*For additional information on our Pb−Free strategy and soldering details, please
