HD74LS42 BCD-to-Decimal Decoder REJ03D0409–0300 Rev.3.00 Jul.22.2005 This monolithic decimal decoder consists of eight inverters and ten four-input NAND gates. The inverters are connected in pairs to make BCD input data available for decoding by NAND gates. Full decoding of valid input logic ensures that all outputs remain off for all invalid input conditions. Features • Ordering Information Package Code (Previous Code) PRDP0016AE-B (DP-16FV) Part Name Package Type HD74LS42P DILP-16 pin HD74LS42FPEL SOP-16 pin (JEITA) HD74LS42RPEL SOP-16 pin (JEDEC) PRSP0016DH-B (FP-16DAV) PRSP0016DG-A (FP-16DNV) Package Abbreviation Taping Abbreviation (Quantity) P — FP EL (2,000 pcs/reel) RP EL (2,500 pcs/reel) Note: Please consult the sales office for the above package availability. Pin Arrangement 0Y 1 16 VCC 15 A 14 B 13 C 12 D 11 9Y 10 8Y 9 7Y 0 1Y 2Y 2 1 3 2 3 Outputs 3Y 4 4Y 5 5Y 6 6Y 7 GND 8 A B 4 5 6 C 7 8 D 9 (Top view) Rev.3.00, Jul.22.2005, page 1 of 6 Inputs Outputs HD74LS42 Function Table No. BCD input Decimal output 0 D L C L B L A L 0 L 1 H 2 H 3 H 4 H 5 H 6 H 7 H 8 H 9 H 1 2 L L L L L H H L H H L H H L H H H H H H H H H H H H H H 3 4 L L L H H L H L H H H H H H L H H L H H H H H H H H H H 5 6 L L H H L H H L H H H H H H H H H H L H H L H H H H H H 7 8 L H H L H L H L H H H H H H H H H H H H H H L H H L H H 9 H H L L L H H L H H H H H H H H H H H H H H H H H H L H H H L H H L H L H H H H H H H H H H H H H H H H H H H H H H H H L H H L H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H Invalid H H H; high level, L; low level Block Diagram A A 0Y A 1Y 2Y B B 3Y B 4Y Inputs Outputs C D C 5Y C 6Y D 7Y D 8Y 9Y Absolute Maximum Ratings Symbol Ratings Unit Supply voltage Input voltage Item VCC VIN 7 7 V V Power dissipation Storage temperature PT Tstg 400 –65 to +150 mW °C Note: Voltage value, unless otherwise noted, are with respect to network ground terminal. Rev.3.00, Jul.22.2005, page 2 of 6 HD74LS42 Recommended Operating Conditions Item Supply voltage Output current Operating temperature Symbol Min Typ Max Unit VCC IOH 4.75 — 5.00 — 5.25 –400 V µA IOL Topr — –20 — 25 8 75 mA °C Electrical Characteristics (Ta = –20 to +75 °C) Item Input voltage Symbol min. typ.* max. Unit VIH VIL 2.0 — — — — 0.8 V V VOH 2.7 — — V — — 0.5 IIH — — — — 0.4 20 µA VCC = 5.25 V, VI = 2.7 V IIL II — — — — –0.4 0.1 mA mA VCC = 5.25 V, VI = 0.4 V VCC = 5.25 V, VI = 7 V — –100 mA VCC = 5.25 V Output voltage VOL Input current VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V, IOH = –400 µA IOL = 8 mA VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V IOL = 4 mA V Short-circuit output current Supply current IOS –20 ICC** — 7 13 mA Input clamp voltage VIK — — –1.5 V Condition VCC = 5.25 V VCC = 4.75 V, IIN = –18 mA Notes: * VCC = 5 V, Ta = 25°C ** VCC is measured with all outputs and all inputs grounded. Switching Characteristics (VCC = 5 V, Ta = 25°C) Item Symbol 2 Stage Propagation delay time 3 Stage 2 Stage 3 Stage Rev.3.00, Jul.22.2005, page 3 of 6 tPLH tPHL min. — typ. 15 max. 25 — — 20 15 30 25 — 20 30 Unit Condition ns CL = 15 pF, RL = 2 kΩ ns HD74LS42 Testing Method Test Circuit VCC 4.5V 0 RL Output Input P.G. Zout = 50Ω See Function Table 1 2 A 3 B 4 5 C CL 6 7 D 8 9 Notes: 1. All diodes are 1S2074(H). 2. CL includes probe and jig capacitance. Waveform tTHL tTLH 90% 1.3 V Input 3V 90% 1.3 V 10% 10% 0V tPHL tPLH VOH In phase output 1.3 V 1.3 V VOL tPHL tPLH VOH Out of phase output 1.3 V 1.3 V VOL Note: Input pulse: tTLH ≤ 15 ns, tTHL ≤ 6 ns, PRR = 1 MHz, duty cycle 50%. Rev.3.00, Jul.22.2005, page 4 of 6 HD74LS42 Package Dimensions JEITA Package Code P-DIP16-6.3x19.2-2.54 RENESAS Code PRDP0016AE-B Previous Code DP-16FV MASS[Typ.] 1.05g D 9 E 16 1 8 b3 0.89 Z A1 A Reference Symbol L e Nom θ c e1 D 19.2 E 6.3 JEITA Package Code P-SOP16-5.5x10.06-1.27 RENESAS Code PRSP0016DH-B *1 Previous Code FP-16DAV 7.4 A1 0.51 b p 0.40 b 3 0.48 0.56 1.30 c 0.19 θ 0° e 2.29 0.25 0.31 2.54 2.79 15° 1.12 L 2.54 MASS[Typ.] 0.24g NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. D F 16 20.32 5.06 Z ( Ni/Pd/Au plating ) Max 7.62 1 A bp e Dimension in Millimeters Min 9 c HE *2 E bp Index mark Reference Symbol Terminal cross section ( Ni/Pd/Au plating ) 1 Z *3 bp Nom D 10.06 E 5.50 Max 10.5 A2 8 e Dimension in Millimeters Min x A1 M 0.00 0.10 0.20 0.34 0.40 0.46 0.15 0.20 0.25 7.80 8.00 2.20 A L1 bp b1 c A c A1 θ y L Detail F 1 θ 0° HE 7.50 1.27 e x 0.12 y 0.15 Z 0.80 0.50 L L Rev.3.00, Jul.22.2005, page 5 of 6 8° 1 0.70 1.15 0.90 HD74LS42 JEITA Package Code P-SOP16-3.95x9.9-1.27 RENESAS Code PRSP0016DG-A *1 Previous Code FP-16DNV MASS[Typ.] 0.15g D NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. F 16 9 c *2 Index mark HE E bp Reference Symbol Terminal cross section ( Ni/Pd/Au plating ) Dimension in Millimeters Min Nom Max D 9.90 10.30 E 3.95 A2 1 Z 8 e *3 bp x A1 0.10 0.14 0.25 0.34 0.40 0.46 0.15 0.20 0.25 6.10 6.20 1.75 A M L1 bp b1 c A c A1 θ L y Detail F 1 θ 0° HE 5.80 1.27 e x 0.25 y 0.15 Z 0.635 0.40 L L Rev.3.00, Jul.22.2005, page 6 of 6 8° 1 0.60 1.08 1.27 Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. 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