Semiconductor Components Industries, LLC, 2000
March, 2000 – Rev. 3
1 Publication Order Number:
MC14008B/D
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.
• 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
MAXIMUM RATINGS (Voltages Referenced to V
SS
) (Note 2.)
Symbol
Parameter Value Unit
V
DD
DC Supply Voltage Range –0.5 to +18.0 V
Vin, V
out
Input or Output Voltage Range
(DC or Transient)
–0.5 to VDD + 0.5 V
Iin, I
out
Input or Output Current
(DC or Transient) per Pin
±10 mA
P
D
Power Dissipation,
per Package (Note 3.)
500 mW
T
A
Ambient Temperature Range –55 to +125 °C
T
stg
Storage Temperature Range –65 to +150 °C
T
L
Lead Temperature
(8–Second Soldering)
260 °C
2. Maximum Ratings are those values beyond which damage to the device
may occur.
3. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C T o 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, V
in
and V
out
should be constrained
to the range V
SS
v (Vin or V
out
) v VDD.
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,
either V
SS
or VDD). Unused outputs must be left open.
http://onsemi.com
A = Assembly Location
WL or L = Wafer Lot
YY or Y = Year
WW or W = Work Week
Device Package Shipping
ORDERING INFORMATION
MC14008BCP PDIP–16 2000/Box
MC14008BDR2 SOIC–16 2500/Tape & Reel
MC14008BF SOEIAJ–16 See Note 1.
1. For ordering information on the EIAJ version of
the SOIC packages, please contact your local
ON Semiconductor representative.
MARKING
DIAGRAMS
1
16
PDIP–16
P SUFFIX
CASE 648
MC14008BCP
AWLYYWW
SOIC–16
D SUFFIX
CASE 751B
1
16
14008B
AWLYWW
SOEIAJ–16
F SUFFIX
CASE 966
1
16
MC14008B
AWLYWW