INTEGRATED CIRCUITS 74LV245 Octal bus transceiver (3-State) Product specification Supersedes data of 1997 Feb 19 IC24 Data Handbook 1998 Apr 20 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 FEATURES DESCRIPTION • Wide operating voltage: 1.0 to 5.5 V • 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 74LV245 is a low-voltage Si-gate CMOS device and is pin and function compatible with 74HC/HCT245. The 74LV245 is an octal transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. The 74LV245 features an output enable (OE) input for easy cascading and a send/receive (DIR) input for direction control. OE controls the outputs so that the buses are effectively isolated. Tamb = 25°C • Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V, Tamb = 25°C • Output capability: bus driver • ICC category: MSI QUICK REFERENCE DATA GND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns PARAMETER SYMBOL CONDITIONS TYPICAL UNIT 7.0 ns tPHL/tPLH Propagation delay An to Bn; Bn to An CL = 15 pF; VCC = 3.3 V CI Input capacitance 3.5 pF CI/O Input/output capacitance 10 pF CPD Power dissipation capacitance per buffer 40 pF VCC = 3.3 V VI = GND to VCC, note 1 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. # 20-Pin Plastic DIL –40°C to +125°C 74LV245 N 74LV245 N SOT146-1 20-Pin Plastic SO –40°C to +125°C 74LV245 D 74LV245 D SOT163-1 20-Pin Plastic SSOP Type II –40°C to +125°C 74LV245 DB 74LV245 DB SOT339-1 20-Pin Plastic TSSOP Type I –40°C to +125°C 74LV245 PW 74LV245PW DH SOT360-1 PIN DESCRIPTION PIN NUMBER FUNCTION TABLE SYMBOL FUNCTION 1 DIR Direction 2, 3, 4, 5, 6, 7, 8, 9 A0 to A7 Data inputs/outputs 10 GND Ground (0 V) 18, 17, 16, 15, 14, 13, 12, 11 B0 to B7 Data inputs/outputs 19 OE Output enable input (active LOW) 20 VCC Positive supply voltage 1998 Apr 20 INPUTS OE INPUTS/OUTPUT DIR An Bn L L A=B Inputs L H Inputs B=A H X Z Z NOTES: H = HIGH voltage level L = LOW voltage level X = don’t care Z = high impedance OFF-state 2 853–1931 19258 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 PIN CONFIGURATION LOGIC SYMBOL DIR 1 20 VCC A0 2 19 OE A1 3 18 B0 A2 4 17 B1 A3 5 16 B2 A4 6 15 B3 1 OE 2 3 7 14 B4 A6 8 13 B5 A7 9 12 B6 GND 10 11 B7 8 1 G3 9 3EN2 11 SV00625 1 2 18 2 3 17 4 16 5 15 6 14 7 13 8 12 9 11 SV00626 1998 Apr 20 12 A7 B7 3EN1 13 A6 B6 19 14 A5 B5 LOGIC SYMBOL (IEEE/IEC) 15 A4 B4 7 16 A3 B3 SV00624 17 A2 B2 6 18 A1 B1 5 19 A0 B0 4 A5 DIR 3 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 RECOMMENDED OPERATING CONDITIONS SYMBOL VCC PARAMETER CONDITIONS MIN TYP. MAX UNIT See Note 1 1.0 3.3 5.5 V DC supply voltage VI Input voltage 0 – VCC V VO Output voltage 0 – VCC V +85 +125 °C 500 200 100 50 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 VCC = 3.6V to 5.5V – – – – – – – – 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. ABSOLUTE MAXIMUM RATINGS1, 2 In accordance with the Absolute Maximum Rating System (IEC 134). Voltages are referenced to GND (ground = 0V). SYMBOL PARAMETER CONDITIONS RATING UNIT –0.5 to +7.0 V VCC DC supply voltage 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 – bus driver outputs –0.5V < VO < VCC + 0.5V 35 IGND, ICC Tstg PTOT DC VCC or GND current for types with – bus driver outputs 70 Storage temperature range Power dissipation per package – plastic DIL – plastic mini-pack (SO) – plastic shrink mini-pack (SSOP and TSSOP) –65 to +150 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 mA mA °C 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. 1998 Apr 20 4 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 DC ELECTRICAL CHARACTERISTICS Over recommended operating conditions. Voltages are referenced to GND (ground = 0V). LIMITS SYMBOL PARAMETER -40°C to +85°C TEST CONDITIONS MIN VIH VIL HIGH level Input voltage LOW level Input voltage TYP1 VOH O VOL VOL O HIGH level output voltage; BUS driver outputs l l output t t LOW level voltage out uts voltage; all outputs LOW level output voltage; BUS driver outputs MIN 0.9 0.9 VCC = 2.0V 1.4 1.4 VCC = 2.7 to 3.6V 2.0 2.0 VCC = 4.5 to 5.5V 0.7VCC UNIT MAX V 0.7VCC VCC = 1.2V 0.3 0.3 VCC = 2.0V 0.6 0.6 VCC = 2.7 to 3.6V 0.8 0.8 0.3VCC 0.3VCC VCC = 1.2V; VI = VIH or VIL; –IO = 100µA VOH MAX VCC = 1.2V VCC = 4.5 to 5.5 HIGH llevell output t t voltage out uts voltage; all outputs -40°C to +125°C V 1.2 VCC = 2.0V; VI = VIH or VIL; –IO = 100µA VCC = 2.7V; VI = VIH or VIL; –IO = 100µA 1.8 2.0 1.8 2.5 2.7 2.5 VCC = 3.0V; VI = VIH or VIL; –IO = 100µA 2.8 3.0 2.8 VCC = 4.5V;VI = VIH or VIL; –IO = 100µA 4.3 4.5 4.3 VCC = 3.0V;VI = VIH or VIL; –IO = 8mA 2.40 2.82 2.20 VCC = 4.5V;VI = VIH or VIL; –IO = 16mA 3.60 4.20 3.50 V V VCC = 1.2V; VI = VIH or VIL; IO = 100µA 0 VCC = 2.0V; VI = VIH or VIL; IO = 100µA VCC = 2.7V; VI = VIH or VIL; IO = 100µA 0 0.2 0.2 0 0.2 0.2 VCC = 3.0V;VI = VIH or VIL; IO = 100µA 0 0.2 0.2 VCC = 4.5V;VI = VIH or VIL; IO = 100µA 0 0.2 0.2 VCC = 3.0V;VI = VIH or VIL; IO = 8mA 0.20 0.40 0.50 VCC = 4.5V;VI = VIH or VIL; IO = 16mA 0.35 0.55 0.65 1.0 1.0 µA 5 10 µA V V Input leakage current VCC = 5.5V; VI = VCC or GND IOZ 3-State output OFF-state current VCC = 5.5V; VI = VIH or VIL; VO = VCC or GND ICC Quiescent supply current; MSI VCC = 5.5V; VI = VCC or GND; IO = 0 20.0 160 µA ∆ICC Additional quiescent supply current VCC = 2.7V to 3.6V; VI = VCC –0.6V 500 850 µA II NOTE: 1. All typical values are measured at Tamb = 25°C. 1998 Apr 20 5 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 AC CHARACTERISTICS GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 1KΩ SYMBOL PARAMETER WAVEFORM tPZH/tPZL tPHZ/tPLZ Pro agation delay Propagation An to Bn; Bn tto An 3-State out output ut enable time OE to An; OE tto Bn 3-State output disable time OE tto An; OE to Bn –40 to +85 °C –40 to +125 °C TYP1 MAX 1.2 45 28 2.0 15 28 34 2.7 11 19 24 3.0 to 3.6 92 16 20 4.5 to 5.5 83 11 14 1.2 55 2.0 19 31 39 VCC(V) tPHL/tPLH LIMITS CONDITION Figures 1 Figures 2 MIN MIN MAX 2.7 14 23 29 3.0 to 3.6 102 18 23 4.5 to 5.5 8.53 14 18 1.2 65 2.0 24 32 39 Figures 2 UNIT 2.7 18 24 29 3.0 to 3.6 142 20 24 4.5 to 5.5 11.53 16 19 ns ns ns NOTES: 1. Unless otherwise stated, all typical values are measured at Tamb = 25°C 2. Typical values are measured at VCC = 3.3 V. 3. Typical values are measured at VCC = 5.0 V. AC WAVEFORMS VM = 1.5 V at VCC ≥ 2.7 V and ≤ 3.6 V VM = 0.5 V × VCC at VCC < 2.7 V and ≥ 4.5 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 and ≤ 3.6 V VX = VOL + 0.1 × VCC at VCC < 2.7 V and ≥ 4.5 V VY = VOH – 0.3 V at VCC ≥ 2.7V and ≤ 3.6 V VY = VOH – 0.1 × VCC at VCC < 2.7 V and ≥ 4.5 V VI An, Bn INPUT VM OE INPUT VM GND tPHL Bn, An OUTPUT VCC OUTPUT tPLH tPLZ VM LOW-to-OFF OFF-to-LOW VOL VM tPZL VX tPZH tPHZ VOH OUTPUT SV00627 HIGH-to-OFF OFF-to-HIGH GND Figure 1. Input (An, Bn) to output (Bn, An) propagation delays and the output transition times. VY VM outputs enabled outputs disabled outputs enabled SV00628 Figure 2. 3-State enable and disable times. 1998 Apr 20 6 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 TEST CIRCUIT VCC 2 * VCC Open GND RL = 1k VO VI PULSE GENERATOR D.U.T. RT CL RL = 1k 50 pF Test Circuit for Outputs DEFINITIONS RL = Load resistor CL = Load capacitance includes jig and probe capacitiance. RT = Termination resistance should be equal to ZOUT of pulse generators. SWITCH POSITION S1 VCC tPLH/tPHL Open < 2.7V VCC tPLZ/tPZL 2 * VCC 2.7–3.6V 2.7V tPHZ/tPZH GND TEST 4.5V VI VCC SV00896 Figure 3. Load circuitry for switching times. 1998 Apr 20 7 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 DIP20: plastic dual in-line package; 20 leads (300 mil) 1998 Apr 20 8 SOT146-1 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 SO20: plastic small outline package; 20 leads; body width 7.5 mm 1998 Apr 20 9 SOT163-1 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm 1998 Apr 20 10 SOT339-1 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm 1998 Apr 20 11 SOT360-1 Philips Semiconductors Product specification Octal bus transceiver (3-State) 74LV245 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 Apr 20 12 Date of release: 05-96 9397-750-04438