HD74HC257 Quad. 2-to-1-line Data Selectors/Multiplexers (with noninverted 3-state outputs) REJ03D0601–0200 (Previous ADE-205-478) Rev.2.00 Jan 31, 2006 Description The large output drive capability coupled with the 3-state feature make this device ideal for interfacing with bus lines in a bus organized system. When the output control input line is taken high, the outputs of all four multiplexers are sent into a high impedance state. When the output control line is low, the select input chooses whether the A or B input is used. Features • • • • • • High Speed Operation: tpd (Data to Y) = 10.5 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Ordering Information Part Name Package Code (Previous Code) Package Type Package Abbreviation Taping Abbreviation (Quantity) HD74HC257P DILP-16 pin PRDP0016AE-B (DP-16FV) P — HD74HC257FPEL SOP-16 pin (JEITA) PRSP0016DH-B (FP-16DAV) FP EL (2,000 pcs/reel) PRSP0016DG-A RP (FP-16DNV) Note: Please consult the sales office for the above package availability. HD74HC257RPEL SOP-16 pin (JEDEC) EL (2,500 pcs/reel) Function Table Inputs Output Control Select L L L L L H L H H X Notes H: high level, L: low level, X: irrelevant Rev.2.00 Jan 31, 2006 page 1 of 7 A L H X X X B X X L H X Output Y L H L H High impedance HD74HC257 Pin Arrangement Select 1 1A 2 1A 1B 3 1Y 16 VCC S OC 15 Output control 1B 4A 14 4A 4 1Y 4B 13 4B 2A 5 2A 4Y 12 4Y 2B 6 2B 3A 11 3A 2Y 7 2Y 3B 10 3B GND 8 3Y 9 3Y (Top view) Logic Diagram VCC 1A 1Y 1B VCC 2A 2Y 2B VCC 3A 3Y 3B VCC 4A 4Y 4B Select Output control Rev.2.00 Jan 31, 2006 page 2 of 7 HD74HC257 Absolute Maximum Ratings Item Supply voltage range Input / Output voltage Input / Output diode current Output current VCC, GND current Power dissipation Storage temperature Symbol VCC VIN, VOUT IIK, IOK IO ICC or IGND PT Tstg Ratings –0.5 to 7.0 –0.5 to VCC +0.5 ±20 ±35 ±75 500 –65 to +150 Unit V V mA mA mA mW °C Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of which may be realized at the same time. Recommended Operating Conditions Item Supply voltage Input / Output voltage Operating temperature Input rise / fall time*1 Symbol VCC VIN, VOUT Ta tr, tf Ratings 2 to 6 0 to VCC –40 to 85 0 to 1000 0 to 500 0 to 400 Unit V V °C ns Conditions VCC = 2.0 V VCC = 4.5 V VCC = 6.0 V Notes: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics. Electrical Characteristics Item Input voltage Symbol VCC (V) VIH VIL Output voltage VOH VOL Min Ta = 25°C Typ Max Ta = –40 to+85°C Unit Min Max 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 4.5 6.0 2.0 1.5 3.15 4.2 — — — 1.9 4.4 5.9 4.18 5.68 — — — — — — — 2.0 4.5 6.0 — — 0.0 — — — 0.5 1.35 1.8 — — — — — 0.1 1.5 3.15 4.2 — — — 1.9 4.4 5.9 4.13 5.63 — — — — 0.5 1.35 1.8 — — — — — 0.1 4.5 6.0 4.5 6.0 — — — — 0.0 0.0 — — 0.1 0.1 0.26 0.26 — — — — 0.1 0.1 0.33 0.33 Off-state output current Input current IOZ 6.0 — — ±0.5 — ±5.0 Iin Quiescent supply current ICC 6.0 6.0 — — — — ±0.1 4.0 — — ±1.0 40 Rev.2.00 Jan 31, 2006 page 3 of 7 Test Conditions V V V V Vin = VIH or VIL IOH = –20 µA Vin = VIH or VIL IOH = –6 mA IOH = –7.8 mA IOL = 20 µA IOL = 6 mA IOL = 7.8 mA µA Vin = VIH or VIL, Vout = VCC or GND µA Vin = VCC or GND µA Vin = VCC or GND, Iout = 0 µA HD74HC257 Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns) Item Ta = 25°C Min Typ Max — — 115 — 11 23 — — 20 — — 115 — 10 23 — — 20 — — 115 — 14 23 — — 20 — — 115 — 14 23 — — 20 — — 150 — 11 30 — — 26 — — 150 Symbol VCC (V) Propagation delay time tPHL 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 tPLH tPHL tPLH Output enable time tZL tZH tLZ Output disable time tHZ Output rise/fall time tTLH tTHL Input capacitance Cin Ta = –40 to +85°C Unit Test Conditions Min Max — 145 ns Data to Y — 29 — 25 — 145 ns — 29 — 25 — 145 ns Select to Y — 29 — 25 — 145 ns — 29 — 25 — 190 ns Output control to Y — 38 — 33 — 190 ns 4.5 6.0 — — 13 — 30 26 — — 38 33 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 — — — — — — — — — — — — 14 — — 18 — — 4 — 5 150 30 26 150 30 26 60 12 10 10 — — — — — — — — — — 190 38 33 190 38 33 75 15 13 10 ns Output control to Y ns ns pF Test Circuit VCC VCC Output 1 kΩ Input Pulse Generator Zout = 50 Ω See Function Table OC 1Y CL = 50 pF Output 1A to 4A 2Y Output OPEN GND VCC Same as Load Circuit 1B to 4B 3Y Output S 4Y Note : 1. CL includes probe and jig capacitance. Rev.2.00 Jan 31, 2006 page 4 of 7 S1 Same as Load Circuit Same as Load Circuit TEST t PLH / t PHL S1 OPEN t ZH/ t HZ t ZL / t LZ GND VCC HD74HC257 Waveforms • Waveform – 1 tr tf 90 % 50 % Input VCC 90 % 50 % 10 % 10 % t PLH t PHL 90 % Same-phase output 0V 50 % 10 % 50 % 10 % t TLH t PHL t PLH 90 % 50 % 10 % 50 % 10 % VOL tr 90 % 50 % 10 % t ZL Input G VOH t TLH t THL tf VOL t THL 90 % Inverse-phase output • Waveform – 2 VOH 90 % VCC 90 % 50 % 10 % 0V t LZ VOH 50 % Waveform – A t ZH Waveform – B 10 % t HZ 50 % 90 % VOL VOH VOL Notes : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, tr ≤ 6 ns, tf ≤ 6 ns 2. Waveform– A is for an output with internal conditions such that the output is low except when disabled by the output control. 3. Waveform– B is for an output with internal conditions such that the output is high except when disabled by the output control. 4. The output are measured one at a time with one transition per measurement. Rev.2.00 Jan 31, 2006 page 5 of 7 HD74HC257 Package Dimensions JEITA Package Code P-DIP16-6.3x19.2-2.54 RENESAS Code PRDP0016AE-B MASS[Typ.] 1.05g Previous Code DP-16FV 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 A L1 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 0.80 Z L L Rev.2.00 Jan 31, 2006 page 6 of 7 8° 0.50 1 0.70 1.15 0.90 HD74HC257 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 8 1 Z 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 e 1.27 x 0.25 y 0.15 0.635 Z 0.40 L L Rev.2.00 Jan 31, 2006 page 7 of 7 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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