INTEGRATED CIRCUITS 74LV251 8-input multiplexer (3-State) Product specification Supersedes data of 1997 Apr 10 IC24 Data Handbook 1998 May 20 Philips Semiconductors Product specification 8-input multiplexer (3-State) 74LV251 FEATURES DESCRIPTION • Optimized for low voltage applications: 1.0 to 3.6 V • Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V • Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V, The 74LV251 is a low-voltage Si-gate CMOS device and is pin and function compatible with 74HC/HCT251. The 74LV251 is an 8-input multiplexer with 8 binary inputs (I0 to I7), an output enable input (OE) and three select inputs (S0, S1, S2). One of the eight binary inputs is selected by the select inputs and is routed to the outputs (Y, Y). Both outputs are in the high impedance OFF-state (Z) when the output enable input is HIGH, allowing multiplexer expansion by tying the outputs. Tamb = 25°C • Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, Tamb = 25°C • True and complement outputs • Both outputs are 3-State for further multiplexer expansion • Multifunction capability • Permits multiplexing from n-lines to one line • Output capability: standard • ICC category: MSI QUICK REFERENCE DATA GND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns PARAMETER SYMBOL tPHL/tPLH Propagation delay In to Y In to Y Sn to Y Sn to Y CI Input capacitance CPD CONDITIONS CL = 15 pF; VCC = 3.3 V Power dissipation capacitance per gate TYPICAL 14 16 19 20 VCC = 3.3 V VI = GND to VCC1 UNIT ns 3.5 pF 44 pF NOTE: 1. CPD is used to determine the dynamic power dissipation (PD in µW) PD = CPD × VCC2 × fi (CL × VCC2 × fo) where: fi = input frequency in MHz; CL = output load capacitance in pF; fo = output frequency in MHz; VCC = supply voltage in V; (CL × VCC2 × fo) = sum of the outputs. ORDERING INFORMATION PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. # 16-Pin Plastic DIL –40°C to +125°C 74LV251 N 74LV251 N SOT38-4 16-Pin Plastic SO –40°C to +125°C 74LV251 D 74LV251 D SOT109-1 16-Pin Plastic SSOP Type II –40°C to +125°C 74LV251 DB 74LV251 DB SOT338-1 16-Pin Plastic TSSOP Type I –40°C to +125°C 74LV251 PW 74LV251PW DH SOT403-1 1998 May 20 2 853–1967 19420 Philips Semiconductors Product specification 8-input multiplexer (3-State) 74LV251 PIN CONFIGURATION PIN DESCRIPTION I3 1 16 V CC I2 2 15 I4 I1 3 14 I5 I0 4 13 I6 Y 5 12 I7 Y 6 11 S0 QE 7 10 S1 GND 8 9 S2 PIN NUMBER SV00629 LOGIC SYMBOL SYMBOL FUNCTION 4, 3, 2, 1, 15, 14, 13, 12 I0 to I7 Multiplexer inputs 5 Y Multiplexer output 6 Y Complementary multiplexer output 7 OE 3-State output enable input (active LOW) 8 GND Ground (0 V) 11, 10, 9 S0 to S2 Select inputs 16 VCC Positive supply voltage LOGIC SYMBOL (IEEE/IEC) 11 10 MUX 9 7 S0 4 I0 3 I1 2 I2 1 I3 15 I4 14 I5 13 I6 12 I7 S1 S2 11 EN 0 G0 7 10 9 2 4 0 3 1 2 2 1 3 15 4 14 5 13 6 12 7 5 Y Y 5 6 OE 6 7 SV00631 SV00630 FUNCTIONAL DIAGRAM 11 S0 10 S1 9 S2 7 OE 4 3 2 1 15 14 13 12 I0 I1 I2 I3 I4 I5 I6 I7 MULTIPLEXER Y Y 6 5 SV00632 1998 May 20 3 Philips Semiconductors Product specification 8-input multiplexer (3-State) 74LV251 FUNCTION TABLE INPUTS OUTPUTS OE S2 S1 S0 I0 I1 I2 I3 I4 I5 I6 I7 Y Y H X X X X X X X X X X X Z Z L L L L L L L L L L L L L L H H L H X X X X L H X X X X X X X X X X X X X X X X X X X X X X X X H L H L L H L H L L L L L L L L H H H H L L H H X X X X X X X X L H X X X X L H X X X X X X X X X X X X X X X X H L H L L H L H L L L L H H H H L L L L L L H H X X X X X X X X X X X X X X X X L H X X X X L H X X X X X X X X H L H L L H L H L L L L H H H H H H H H L L H H X X X X X X X X X X X X X X X X X X X X X X X X L H X X X X L H H L H L L H L H NOTES: H = HIGH voltage level L = LOW voltage level X = don’t care Z = high impedance OFF-state RECOMMENDED OPERATING CONDITIONS SYMBOL VCC PARAMETER CONDITIONS MIN TYP MAX UNIT See Note 1 1.0 3.3 3.6 V DC supply voltage VI Input voltage 0 – VCC V VO Output voltage 0 – VCC V +85 +125 °C 500 200 100 ns/V Tamb Operating ambient temperature range in free air tr, tf Input rise and fall times See DC and AC characteristics –40 –40 VCC = 1.0V to 2.0V VCC = 2.0V to 2.7V VCC = 2.7V to 3.6V – – – – – – NOTE: 1. The LV is guaranteed to function down to VCC = 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to VCC = 5.5V. 1998 May 20 4 Philips Semiconductors Product specification 8-input multiplexer (3-State) 74LV251 ABSOLUTE MAXIMUM RATINGS1, 2 In accordance with the Absolute Maximum Rating System (IEC 134). Voltages are referenced to GND (ground = 0 V). PARAMETER SYMBOL CONDITIONS RATING UNIT VCC DC supply voltage –0.5 to +4.6 V IIK DC input diode current VI < –0.5 or VI > VCC + 0.5V 20 mA IOK DC output diode current VO < –0.5 or VO > VCC + 0.5V 50 mA IO DC output source or sink current – standard outputs –0.5V < VO < VCC + 0.5V 25 mA 50 mA –65 to +150 °C IGND, ICC Tstg PTOT DC VCC or GND current for types with – standard outputs Storage temperature range Power dissipation per package – plastic DIL – plastic mini-pack (SO) – plastic shrink mini-pack (SSOP and TSSOP) for temperature range: –40 to +125°C above +70°C derate linearly with 12 mW/K above +70°C derate linearly with 8 mW/K above +60°C derate linearly with 5.5 mW/K 750 500 400 mW NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. DC ELECTRICAL CHARACTERISTICS Over recommended operating conditions. Voltages are referenced to GND (ground = 0 V). LIMITS SYMBOL PARAMETER TEST CONDITIONS -40°C to +85°C MIN VIH VIL HIGH level Input voltage LOW level Input voltage TYP1 0.9 0.9 VCC = 2.0 V 1.4 1.4 VCC = 2.7 to 3.6 V 2.0 2.0 VOH VOL O VOL 1998 May 20 HIGH level output voltage; STANDARD outputs LOW level output voltage; all outputs LOW level output voltage; STANDARD outputs V 0.3 0.3 VCC = 2.0 V 0.6 0.6 0.8 0.8 1.8 2.0 1.8 VCC = 2.7 V; VI = VIH or VIL; –IO = 100µA 2.5 2.7 2.5 VCC = 3.0 V; VI = VIH or VIL; –IO = 100µA 2.8 3.0 2.8 VCC = 3.0 V; VI = VIH or VIL; –IO = 6mA 2.40 2.82 2.20 V V VCC = 1.2 V; VI = VIH or VIL; IO = 100µA 0 VCC = 2.0 V; VI = VIH or VIL; IO = 100µA 0 0.2 0.2 VCC = 2.7 V; VI = VIH or VIL; IO = 100µA 0 0.2 0.2 VCC = 3.0 V; VI = VIH or VIL; IO = 100µA 0 0.2 0.2 0.25 0.40 0.50 5 V 1.2 VCC = 2.0 V; VI = VIH or VIL; –IO = 100µA VCC = 3.0 V; VI = VIH or VIL; IO = 6mA UNIT MAX VCC = 1.2 V VCC = 1.2 V; VI = VIH or VIL; –IO = 100µA HIGH level output voltage; all outputs MIN VCC = 1.2 V VCC = 2.7 to 3.6 V VOH O -40°C to +125°C MAX V V Philips Semiconductors Product specification 8-input multiplexer (3-State) 74LV251 DC ELECTRICAL CHARACTERISTICS (Continued) LIMITS SYMBOL PARAMETER -40°C to +85°C TEST CONDITIONS MIN TYP1 -40°C to +125°C MAX MIN UNIT MAX Input leakage current VCC = 3.6 V; VI = VCC or GND 1.0 1.0 µA ICC Quiescent supply current; MSI VCC = 3.6 V; VI = VCC or GND; IO = 0 20.0 160 µA ∆ICC Additional quiescent supply current per input VCC = 2.7 V to 3.6 V; VI = VCC – 0.6 V 500 850 µA –40 to +125 °C UNIT II NOTE: 1. All typical values are measured at Tamb = 25°C. AC CHARACTERISTICS GND = 0V; tr = tf = 2.5ns; CL = 50pF; RL = 1KΩ SYMBOL PARAMETER WAVEFORM VCC(V) tPHL//tPLH tPHL//tPLH tPHL//tPLH tPHL//tPLH tPZH//tPZL tPHZ//tPLZ Propagation g delay y In to Y Propagation g delay y In to Y Propagation g delay y Sn to Y Propagation g delay y Sn to Y 3-State output disable time OE to Y, Y 3-State output disable time OE to Y, Y –40 to +85 °C MIN TYP1 MAX MIN MAX 1.2 90 2.0 31 58 70 2.7 23 43 51 3.0 to 3.6 172 34 41 1.2 100 2.0 34 65 77 2.7 25 48 56 3.0 to 3.6 192 38 45 1.2 120 2.0 41 77 92 2.7 30 56 68 3.0 to 3.6 232 45 54 1.2 125 2.0 43 82 97 2.7 31 60 71 3.0 to 3.6 242 48 57 1.2 65 2.0 22 43 51 2.7 16 31 38 3.0 to 3.6 122 25 30 1.2 60 2.0 22 39 48 2.7 17 29 36 3.0 to 3.6 132 24 29 Figure 1 Figure 2 Figure 1 Figure 2 Figure 2 Figure 2 NOTES: 1. Unless otherwise stated, all typical values are measured at Tamb = 25°C 2. Typical values are measured at VCC = 3.3 V. 1998 May 20 LIMITS CONDITION 6 ns ns ns ns ns ns Philips Semiconductors Product specification 8-input multiplexer (3-State) 74LV251 AC WAVEFORMS VM = 1.5 V at VCC ≥ 2.7 V VM = 0.5 V × VCC at VCC < 2.7 V VOL and VOH are the typical output voltage drop that occur with the output load. VX = VOL + 0.3 V at VCC ≥ 2.7 V VX = VOL + 0.1 × VCC at VCC < 2.7 V VY = VOH – 0.3 V at VCC ≥ 2.7V VY = VOH – 0.1 × VCC at VCC < 2.7 V V CC OE INPUT tPLZ OUTPUT LOW-to-OFF OFF-to-LOW V OL VM VX VM tPZH tPHZ GND t PHL V OH OUTPUT HIGH-to-OFF OFF-to-HIGH GND t PLH V OH VM Y OUTPUT tPZL V CC V CC I n , S n INPUT VM GND VY VM outputs enabled V OL outputs disabled outputs enabled SV00635 SV00633 Figure 3. 3-State enable and disable times Figure 1. Multiplexer input (In) and select input (Sn) to output (Y) propagation delays. TEST CIRCUIT VCC V CC In, Sn INPUT VM VI GND t PHL t PLH D.U.T. V OH Y OUTPUT VO PULSE GENERATOR 50pF RT CL RL= 1KΩ VM V OL Test Circuit for switching times SV00634 DEFINITIONS Figure 2. Multiplexer input (In) and the select input (Sn) to output (Y) propagation delays. RT = Termination resistance should be equal to ZOUT of pulse generators. RL = Load resistor CL = Load capacitance includes jig and probe capacitance TEST tPLH/tPHL VCC VI < 2.7V VCC 2.7–3.6V 2.7V SV00776 Figure 4. Load circuitry for switching times. 1998 May 20 7 Philips Semiconductors Product specification 8–input multiplexer (3–State) 74LV251 DIP16: plastic dual in-line package; 16 leads (300 mil) 1998 May 20 8 SOT38-4 Philips Semiconductors Product specification 8–input multiplexer (3–State) 74LV251 SO16: plastic small outline package; 16 leads; body width 3.9 mm 1998 May 20 9 SOT109-1 Philips Semiconductors Product specification 8–input multiplexer (3–State) 74LV251 SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm 1998 May 20 10 SOT338-1 Philips Semiconductors Product specification 8–input multiplexer (3–State) 74LV251 TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm 1998 May 20 11 SOT403-1 Philips Semiconductors Product specification 8–input multiplexer (3–State) 74LV251 DEFINITIONS Data Sheet Identification Product Status Definition Objective Specification Formative or in Design This data sheet contains the design target or goal specifications for product development. Specifications may change in any manner without notice. Preliminary Specification Preproduction Product This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips Semiconductors reserves the right to make changes at any time without notice in order to improve design and supply the best possible product. Product Specification Full Production This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes at any time without notice, in order to improve design and supply the best possible product. Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products, including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. LIFE SUPPORT APPLICATIONS Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices, or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale. Copyright Philips Electronics North America Corporation 1998 All rights reserved. Printed in U.S.A. Philips Semiconductors 811 East Arques Avenue P.O. Box 3409 Sunnyvale, California 94088–3409 Telephone 800-234-7381 print code Document order number: 1998 May 20 12 Date of release: 05-96 9397-750-04439