SCHS251E November 1998 – January 2025 CD54AC283 , CD54ACT283 , CD74AC283 , CD74ACT283
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
The ’AC283 and ’ACT283 4-bit binary adders with fast carry that utilize Advanced CMOS Logic technology. These devices add two 4-bit binary numbers and generate a carryout bit if the sum exceeds 15.
Because of the symmetry of the add function, this device can be used with either all active-HIGH operands (positive logic) or with all active-LOW operands (negative logic). When using positive logic, the carry-in input must be tied LOW if there is no carry-in.
PART NUMBER | PACKAGE(1) | PACKAGE SIZE(2) | BODY SIZE(3) |
---|---|---|---|
CDx4AC283/ CDx4ACT283 | D (SOIC,16) | 9.9mm x 6mm | 9.9mm x 3.90mm |
N (PDIP,16) | 19.3mm x 9.4mm | 19.3mm x 6.35mm |
PIN | TYPE(1) | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
S1 | 1 | O | Sum output 1 |
B1 | 2 | I | 1 bit input for binary number B |
A1 | 3 | I | 1 bit input for binary number A |
S0 | 4 | O | Sum output 0 |
A0 | 5 | I | 0 bit input for binary number A |
B0 | 6 | I | 0 bit input for binary number B |
CIN | 7 | I | Carry input |
GND | 8 | G | Ground |
COUT | 9 | O | Carry output |
S3 | 10 | O | Sum output 3 |
B3 | 11 | I | 3 bit input for binary number B |
A3 | 12 | I | 3 bit input for binary number A |
S2 | 13 | O | Sum output 2 |
A2 | 14 | I | 2 bit input for binary number A |
B2 | 15 | I | 2 bit input for binary number B |
VCC | 14 | P | VCC |