74LV244D,118

查询供应商 INTEGRATED CIRCUITS 74LV244 Octal buffer/line driver (3-State) Product specification Supersedes data of 1997 Feb 19 IC24 Data Handbook
     1998 May 20 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 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 74LV244 is a low-voltage Si-gate CMOS device and is pin and function compatible with 74HC/HCT244. The 74LV244 is an octal non-inverting buffer/line driver with 3-State outputs. The 3-State outputs are controlled by the output enable inputs 1OE and 2OE. A HIGH on nOE causes the outputs to assume a high impedance OFF-state. The 74LV244 is identical to the 74LV240 but has non-inverting outputs. 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 tPHL/tPLH Propagation delay 1An to 1Yn; 2An to 2Yn CL = 15 pF; VCC = 3.3 V CI Input capacitance CPD Power dissipation capacitance per buffer VCC = 3.3 V VI = GND to VCC1 TYPICAL UNIT 8.0 ns 3.5 pF 35 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. # 20-Pin Plastic DIL –40°C to +125°C 74LV244 N 74LV244 N SOT146-1 20-Pin Plastic SO –40°C to +125°C 74LV244 D 74LV244 D SOT163-1 20-Pin Plastic SSOP Type II –40°C to +125°C 74LV244 DB 74LV244 DB SOT339-1 20-Pin Plastic TSSOP Type I –40°C to +125°C 74LV244 PW 74LV244PW DH SOT360-1 PIN CONFIGURATION LOGIC SYMBOL 1 20 VCC 2 1A0 17 2A0 1Y0 18 2Y0 3 1A0 2 19 2OE 2Y0 3 18 1Y0 4 1A1 15 2A1 1Y1 16 2Y1 5 1A1 4 17 2A0 6 1A2 13 2A2 1Y2 14 2Y2 7 8 1A3 11 2A3 1Y3 12 2Y3 9 1OE 2Y1 5 16 1Y1 1A2 6 15 2A1 2Y2 7 14 1Y2 1A3 8 13 2A2 2Y3 9 12 1Y3 GND 10 11 2A3 1 1OE 19 2OE SV00621 SV00620 1998 May 20 2 853–1924 19420 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 PIN DESCRIPTION PIN NUMBER FUNCTIONAL DIAGRAM SYMBOL FUNCTION 2 1A0 1Y0 18 4 1A1 1Y1 16 6 1A2 1Y2 14 8 1A3 1Y3 12 1 1OE Output enable input (active LOW) 2, 4, 6, 8 1A0 to 1A3 Data inputs 3, 5, 7, 9 2Y0 to 2Y3 Bus outputs 10 GND Ground (0 V) 17, 15, 13, 11 2A0 to 2A3 Data inputs 1 1OE 18, 16, 14, 12 1Y0 to 1Y3 Bus outputs 17 2A0 2Y0 3 19 2OE Output enable input (active LOW) 15 2A1 2Y1 5 20 VCC Positive supply voltage 13 2A2 2Y2 7 11 2A3 2Y3 9 19 2OE LOGIC SYMBOL (IEEE/IEC) 1 EN 2 18 4 16 6 14 8 12 19 SV00622 FUNCTION TABLE INPUTS EN 11 9 13 7 15 5 17 3 nOE nAn nYn L L L L H H H X Z NOTES: H = HIGH voltage level L = LOW voltage level X = don’t care Z = high impedance OFF-state SV00666 1998 May 20 OUTPUT 3 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 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 mA 70 mA –65 to +150 °C
IGND,
ICC Tstg PTOT DC VCC or GND current for types with – bus driver 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. 1998 May 20 4 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 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 LOW level l l output t t 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 0.7
VCC 0.7
VCC UNIT MAX V VCC = 1.2V 0.3 0.3 VCC = 2.0V 0.6 0.6 VCC = 2.7 to 3.6V 0.8 0.8 0.3
VCC 0.3
VCC VCC = 1.2V; VI = VIH or VIL; –IO = 100µA VOH MAX VCC = 1.2V VCC = 4.5 to 5.5 HIGH level l l 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 1.8 2.0 1.8 VCC = 2.7V; VI = VIH or VIL; –IO = 100µA 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 0 0.2 0.2 VCC = 2.7V; VI = VIH or VIL; IO = 100µA 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 0.25 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 = 3.6V; 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 per input 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 May 20 5 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 AC CHARACTERISTICS GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL =1KΩ LIMITS CONDITION SYMBOL PARAMETER VCC(V) Pro agation delay Propagation 1An to 1Yn; 2An to 2Yn tPHL/tPLH –40 to +85 °C WAVEFORM MIN TYP1 tPZH/tPZL 2.0 17 24 31 2.7 13 17 23 3.0 to 3.6 92 14 18 12 15 Figures 1, 2 1.2 65 2.0 22 39 49 2.7 16 29 36 3.0 to 3.6 122 23 29 19 24 Figures 2, 3 3-State out output ut disable time 1OE to 1Yn; 2OE to 2Yn 1.2 60 2.0 22 34 43 2.7 17 24 32 3.0 to 3.6 132 21 26 16 19 Figures 2, 3 4.5 to 5.5 UNIT MAX 50 4.5 to 5.5 tPHZ/tPLZ MIN 1.2 4.5 to 5.5 3-State out output ut enable time 1OE to 1Yn; 2OE to 2Yn –40 to +125 °C MAX 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. AC WAVEFORMS VM = 1.5 V at VCC ≥ 2.7 V and ≤ 3.6 V VM = 0.5 × 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 OE INPUT VCC VM VX tPZH tPHZ VM VOH GND tPHL VY Qn OUTPUT HIGH-to-OFF OFF-to-HIGH GND tPLH VOH 1Yn, 2Yn OUTPUT tPZL tPLZ Qn OUTPUT LOW-to-OFF OFF-to-LOW VOL VI 1An, 2An INPUTS VM GND VM outputs enabled VM outputs disabled outputs enabled SV00623 VOL Figure 2. 3-State enable and disable times. SV00617 Figure 1. Input (1An, 2An) to output (1Yn, 2Yn) propagation delays. 1998 May 20 6 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 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 May 20 7 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 DIP20: plastic dual in-line package; 20 leads (300 mil) 1998 May 20 8 SOT146-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 SO20: plastic small outline package; 20 leads; body width 7.5 mm 1998 May 20 9 SOT163-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm 1998 May 20 10 SOT339-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm 1998 May 20 11 SOT360-1 Philips Semiconductors Product specification Octal buffer/line driver (3-State) 74LV244 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 9397-750-04437