MM54HC283/MM74HC283 4-Bit Binary Adder with Fast Carry General Description Features This full adder performs the addition of two 4-bit binary numbers utilizing advanced silicon-gate CMOS technology. The sum (R) outputs are provided for each bit and the resultant carry (C4) is obtained from the fourth bit. These adders feature full internal look ahead across all four bits. This provides the system designer with partial look-ahead performance at the economy and reduced package count of a ripple-carry implementation. The adder logic, including the carry, is implemented in its true form meaning that the end-around carry can be accomplished without the need for logic or level inversion. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground. Y Y Y Y Y Full-carry look-ahead across the four bits Systems achieve partial look-ahead performance with the economy of ripple carry Wide supply range: 2V to 6V Low quiescent power consumption: 8 mA at 25§ C Low input current: 1 mA maximum Connection Diagram Dual-In-Line Package TL/F/5332 – 1 Top View Order Number MM54HC283 or MM74HC283 C1995 National Semiconductor Corporation TL/F/5332 RRD-B30M105/Printed in U. S. A. MM54HC283/MM74HC283 4-Bit Binary Adder with Fast Carry January 1988 Absolute Maximum Ratings (Notes 1 & 2) Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage (VCC) Supply Voltage (VCC) DC Input Voltage (VIN) DC Output Voltage (VOUT) Clamp Diode Current (IIK, IOK) DC Output Current, per pin (IOUT) DC VCC or GND Current, per pin (ICC) Storage Temperature Range (TSTG) Power Dissipation (PD) (Note 3) S.O. Package only Lead Temperature (TL) DC Input or Output Voltage (VIN, VOUT) b 0.5 to a 7.0V b 1.5 to VCC a 1.5V Operating Temp. Range (TA) MM74HC MM54HC b 0.5 to VCC a 1.5V g 20 mA g 25 mA Min 2 Max 6 Units V 0 VCC V b 40 b 55 a 85 a 125 §C §C 1000 500 400 ns ns ns Input Rise or Fall Times (tr, tf) VCC e 2.0V VCC e 4.5V VCC e 6.0V g 50 mA b 65§ C to a 150§ C 600 mW 500 mW (Soldering 10 seconds) 260§ C DC Electrical Characteristics (Note 4) Symbol Parameter Conditions TA e 25§ C VCC 74HC TA eb40 to 85§ C Typ 54HC TA eb55 to 125§ C Units Guaranteed Limits VIH Minimum High Level Input Voltage 2.0V 4.5V 6.0V 1.5 3.15 4.2 1.5 3.15 4.2 1.5 3.15 4.2 V V V VIL Maximum Low Level Input Voltage** 2.0V 4.5V 6.0V 0.5 1.35 1.8 0.5 1.35 1.8 0.5 1.35 1.8 V V V VOH Minimum High Level Output Voltage VIN e VIH or VIL lIOUTl s20 mA 2.0V 4.5V 6.0V 2.0 4.5 6.0 1.9 4.4 5.9 1.9 4.4 5.9 1.9 4.4 5.9 V V V 4.5V 6.0V 4.2 5.7 3.98 5.48 3.84 5.34 3.7 5.2 V V 2.0V 4.5V 6.0V 0 0 0 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 V V V VIN e VIH or VIL lIOUTl s4.0 mA lIOUTl s5.2 mA 4.5V 6.0V 0.2 0.2 0.26 0.26 0.33 0.33 0.4 0.4 V V VIN e VIH or VIL lIOUTl s4.0 mA lIOUTl s5.2 mA VOL Maximum Low Level Output Voltage VIN e VIH or VIL lIOUTl s20 mA IIN Maximum Input Current VIN e VCC or GND 6.0V g 0.1 g 1.0 g 1.0 mA ICC Maximum Quiescent Supply Current VIN e VCC or GND IOUT e 0 mA 6.0V 8.0 80 160 mA Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Note 2: Unless otherwise specified all voltages are referenced to ground. Note 3: Power Dissipation temperature derating Ð plastic ‘‘N’’ package: b 12 mW/§ C from 65§ C to 85§ C; ceramic ‘‘J’’ package: b 12 mW/§ C from 100§ C to 125§ C. Note 4: For a power supply of 5V g 10% the worst case output voltages (VOH, and VOL) occur for HC at 4.5V. Thus the 4.5V values should be used when designing with this supply. Worst case VIH and VIL occur at VCC e 5.5V and 4.5V respectively. (The VIH value at 5.5V is 3.85V.) The worst case leakage current (IIN, ICC, and IOZ) occur for CMOS at the higher voltage and so the 6.0V values should be used. **VIL limits are currently tested at 20% of VCC. The above VIL specification (30% of VCC) will be implemented no later than Q1, CY’89. 2 AC Electrical Characteristics VCC e 5V, TA e 25§ C, CL e 15 pF, tr e tf e 6 ns Typ Guaranteed Limit Units Maximum Propagation Delay From C0 to R1 or R2 18 27 ns tPHL, tPLH Maximum Propagation Delay From C0 to R3 18 27 ns tPHL, tPLH Maximum Propagation Delay From C0 to R4 20 30 ns tPHL, tPLH Maximum Propagation Delay From A1 or B1 to R1 17 26 ns tPHL, tPLH Maximum Propagation Delay From C0 to C4 22 32 ns tPHL, tPLH Maximum Propagation Delay From A1 or B1 to C4 22 32 ns Symbol Parameter tPHL, tPLH Conditions AC Electrical Characteristics CL e 50 pF, tr e tf e 6 ns (unless otherwise specified) Symbol Parameter Conditions TA e 25§ C VCC Typ 74HC TA eb40 to 85§ C 54HC TA eb55 to 125§ C Units Guaranteed Limits tPHL, tPLH Maximum Propagation Delay From C0 to R1 or R2 2.0V 4.5V 6.0V 60 21 18 150 30 26 188 37 32 225 45 39 ns ns ns tPHL, tPLH Maximum Propagation Delay From C0 to R3 2.0V 4.5V 6.0V 60 21 18 150 30 26 188 37 32 225 45 39 ns ns ns tPHL, tPLH Maximum Propagation Delay From C0 to R4 2.0V 4.5V 6.0V 65 24 19 162 34 28 202 43 35 243 51 42 ns ns ns tPHL, tPLH Maximum Propagation Delay From A1 or B1 to R1 2.0V 4.5V 6.0V 60 22 18 150 33 27 188 41 34 225 50 41 ns ns ns tPHL, tPLH Maximum Propagation Delay From C0 to C4 2.0V 4.5V 6.0V 70 26 21 175 39 32 219 49 40 263 59 46 ns ns ns tPHL, tPLH Maximum Propagation Delay From A1 or B1 to C4 2.0V 4.5V 6.0V 70 26 21 175 39 32 219 49 40 263 59 46 ns ns ns tTHL, tTLH Maximum Output Rise and Fall Time 2.0V 4.5V 6.0V 28 8 7 75 15 13 95 19 16 110 22 19 ns ns ns CIN Maximum Input Capacitance 6 10 10 10 pF CPD Power Dissipation Capacitance (Note 5) 150 Note 5: CPD determines the no load dynamic power consumption, PD e CPD VCC2 f a ICC VCC, and the no load dynamic current consumption, IS e CPD VCC f a ICC. 3 pF Truth Table Output When C0 e L Input When C0 e H When C2 e L When C2 e H A1 A3 B1 B3 A2 A4 B2 B4 R1 R3 R2 R4 C2 C4 R1 R3 R2 R4 C2 C4 L H L H L H L H L H L H L H L H L L H H L L H H L L H H L L H H L L L L H H H H L L L L H H H H L L L L L L L L H H H H H H H H L H H L L H H L L H H L L H H L L L L H H H H L H H H L L L L H L L L L L L L H L L L H H H H H H L L H H L L H H L L H H L L H L H H H H L L L H L L L L H H H L L L L L H H H L H H H H H H H H e high level, L e low level Note: Input conditions at A1, B1, A2, B2, and C0 are used to determine outputs R1 and R2 and the value of the internal carry C2. The values at C2, A3, B3, A4, and B4 are then used to determine outputs R3, R4, and C4 4 Logic Diagram ’HC283 TL/F/5332 – 2 5 MM54HC283/MM74HC283 4-Bit Binary Adder with Fast Carry Physical Dimensions inches (millimeters) Order Number MM54HC283J or MM74HC283J NS Package J16A Order Number MM74HC283N NS Package N16E LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation 1111 West Bardin Road Arlington, TX 76017 Tel: 1(800) 272-9959 Fax: 1(800) 737-7018 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Europe Fax: (a49) 0-180-530 85 86 Email: cnjwge @ tevm2.nsc.com Deutsch Tel: (a49) 0-180-530 85 85 English Tel: (a49) 0-180-532 78 32 Fran3ais Tel: (a49) 0-180-532 93 58 Italiano Tel: (a49) 0-180-534 16 80 National Semiconductor Hong Kong Ltd. 13th Floor, Straight Block, Ocean Centre, 5 Canton Rd. Tsimshatsui, Kowloon Hong Kong Tel: (852) 2737-1600 Fax: (852) 2736-9960 National Semiconductor Japan Ltd. Tel: 81-043-299-2309 Fax: 81-043-299-2408 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.