HD74LS280 9-bit Odd / Even Parity Generator / Checker REJ03D0475–0300 Rev.3.00 Jul.15.2005 This parity generator / checker offers the designer a trade-off between reduced power consumption and high performance. Although the HD74LS280 is implemented without expander inputs, the corresponding function is provided by the availability of an input at pin 4 and the absence of any internal connection at pin 3. Features • Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation Taping Abbreviation (Quantity) HD74LS280P DILP-14 pin PRDP0014AB-B (DP-14AV) P — PRSP0014DF-B FP (FP-14DAV) Notes: Please consult the sales office for the above package availability. HD74LS280FPEL SOP-14 pin (JEITA) EL (2,000 pcs/reel) Pin Arrangement G 1 14 VCC F 13 F E 12 E G Inputs H 2 NC 3 Input I 4 I D 11 D 5 Σ Even C 10 C 6 Σ Odd A B 9 B 8 A Σ Even Outputs Σ Odd GND H Inputs 7 (Top view) Function Table Number of inputs A through I that are high 0, 2, 4, 6, 8 1, 3, 5, 7, 9 Rev.3.00, Jul.15.2005, page 1 of 5 Outputs Σ Even H L Σ Odd L H HD74LS280 Block Diagram A B C Σ Even D E F Σ Odd G H I Absolute Maximum Ratings Symbol Ratings Unit Supply voltage Item VCC 7 V Input voltage VIN 7 V Power dissipation PT 400 mW Tstg –65 to +150 °C Storage temperature Note: Voltage value, unless otherwise noted, are with respect to network ground terminal. Recommended Operating Conditions Item Supply voltage Output current Operating temperature Rev.3.00, Jul.15.2005, page 2 of 5 Symbol Min Typ Max Unit VCC 4.75 5.00 5.25 V IOH — — –400 µA IOL — — 8 mA Topr –20 25 75 °C HD74LS280 Electrical Characteristics (Ta = –20 to +75 °C) Item Input voltage Symbol VIH VIL min. 2.0 — typ.* — — max. — 0.8 Unit V V VOH 2.7 — — V — — — — — –20 — — — — — — — — 16 — 0.4 0.5 20 –0.4 0.1 –100 27 –1.5 Output voltage VOL Input current IIH IIL II Short-circuit output current IOS Supply current** ICC Input clamp voltage VIK Notes: * VCC = 5 V, Ta = 25°C ** ICC is measured with all outputs open and all inputs grounded. Condition VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V, IOH = –400 µA IOL = 4 mA VCC = 4.75 V, VIH = 2 V, IOL = 8 mA VIL = 0.8 V V µA mA mA mA mA V VCC = 5.25 V, VI = 2.7 V VCC = 5.25 V, VI = 0.4 V VCC = 5.25 V, VI = 7 V VCC = 5.25 V VCC = 5.25 V VCC = 4.75 V, IIN = –18 mA Switching Characteristics (VCC = 5 V, Ta = 25°C) Item Propagation delay time Symbol tPLH tPHL tPLH tPHL Rev.3.00, Jul.15.2005, page 3 of 5 Outputs Σ Even Σ Odd min. — — — — typ. 33 29 23 31 max. 50 45 45 50 Unit ns ns ns ns Condition CL = 15 pF, RL = 2 kΩ HD74LS280 Testing Method Test Circuit VCC 4.5V Output Load circuit 1 RL A Input See Function Table P.G. Zout = 50Ω Σ even B C CL D E F Output G Σ odd H Same as Load Circuit 1. I Notes: 1. CL includes probe and jig capacitance. 2. All diodes are 1S2074(H). Waveform tTLH tTHL 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.15.2005, page 4 of 5 HD74LS280 Package Dimensions JEITA Package Code P-DIP14-6.3x19.2-2.54 RENESAS Code PRDP0014AB-B MASS[Typ.] 0.97g Previous Code DP-14AV D 8 E 14 1 7 b3 Z A1 A Reference Symbol Nom e1 7.62 D 19.2 E 6.3 L A θ bp e Dimension in Millimeters Min e1 A1 0.51 bp 0.40 0.48 JEITA Package Code P-SOP14-5.5x10.06-1.27 RENESAS Code PRSP0014DF-B *1 Previous Code FP-14DAV D 0.56 c 0.19 θ 0° e 2.29 0.25 0.31 2.54 2.79 15° 2.39 L 2.54 MASS[Typ.] 0.23g NOTE) 1. DIMENSIONS"*1 (Nom)"AND"*2" DO NOT INCLUDE MOLD FLASH. 2. DIMENSION"*3"DOES NOT INCLUDE TRIM OFFSET. F 14 7.4 1.30 Z ( Ni/Pd/Au plating ) 20.32 5.06 b3 c Max 8 c HE *2 E bp Index mark Reference Symbol Terminal cross section ( Ni/Pd/Au plating ) 1 Z *3 Nom Max D 10.06 10.5 E 5.50 A2 7 e A1 bp Dimension in Millimeters Min x M 0.00 0.10 0.34 0.40 0.46 0.15 0.20 0.25 7.80 8.00 A L1 0.20 2.20 bp b1 c A c A1 θ y L Detail F 1 θ 0° HE 7.50 e 1.27 x 0.12 y 0.15 1.42 Z L L Rev.3.00, Jul.15.2005, page 5 of 5 8° 0.50 1 0.70 1.15 0.90 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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