CD74HCT283MG4

High Speed CMOS Logic 4-Bit Binary Full Adder with Fast Carry

Packaging

Package \| PIN:	SOIC (D) \| 16
Temp:	M (-55 to 125)
Carrier:	Partial Tube

Qty	Price
1-9	$0.74
10-24	$0.66
25-99	$0.61
100-249	$0.52
250-499	$0.48
500-749	$0.40
750-999	$0.32
1,000+	$0.28

Features

Adds Two Binary Numbers
Full Internal Lookahead
Fast Ripple Carry for Economical Expansion
Operates with Both Positive and Negative Logic
Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Wide Operating Temperature Range . . . -55°C to 125°C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: N_IL = 30%, N_IH = 30% of V_CC at V_CC = 5V
HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility, V_IL = 0.8V (Max), V_IH = 2V (Min)
- CMOS Input Compatibility, I_l 1µA at V_OL, V_OH

Texas Instruments CD74HCT283MG4

The ’HC283 and ’HCT283 binary full adders add two 4-bit binary numbers and generate a carry-out 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.