INTEGRATED CIRCUITS DATA SHEET 74AVCH16244 16-bit buffer/line driver; 3.6 V tolerant; 3-state Product Specification File under Integrated Circuits, IC24 2000 Mar 07 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 FEATURES DESCRIPTION • Wide supply voltage range from 1.2 to 3.6 V The 74AVCH16244 is a 16-bit non-inverting buffer/line driver with 3-state outputs. The device can be used as four 4-bit buffers, two 8-bit buffers or one 16-bit buffer. The 3-state outputs are controlled by the output enable inputs nOE. A HIGH on nOE causes the outputs to assume a high impedance OFF-state. • Complies with JEDEC standard no. 8-1A/5/7 • CMOS low power consumption • Input/output tolerant up to 3.6 V • Dynamic Controlled Output (DCO) circuit dynamically changes the output impedance, resulting in noise reduction without speed degradation The 74AVCH16244 is designed to have an extremely fast propagation delay and a minimum amount of power consumption. • Low inductance multiple VCC and GND pins to minimize noise and ground bounce To ensure the high-impedance output state during power-up or power-down, nOE should be tied to VCC through a pull-up resistor (Live Insertion). • Supports Live Insertion • All data inputs have bus-hold. A Dynamic Controlled Output (DCO) circuitry is implemented to support termination line drive during transient (see Figs 1 and 2). The 74AVCH16244 has active bus-hold circuitry to hold unused or floating data inputs at a valid logic level. This feature eliminates the need for external pull-up or pull-down resistors. MNA506 MNA507 0 300 handbook, halfpage handbook, halfpage I OH (mA) I OL (mA) 3.3 V 1.8 V −100 200 2.5 V 2.5 V −200 100 1.8 V 3.3 V −300 Fig.1 0 0 1 2 3 VOH (V) 4 0 Output voltage as a function of the HIGH-level output current. 2000 Mar 07 Fig.2 2 1 2 3 VOL (V) Output voltage as a function of the LOW-level output current. 4 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 QUICK REFERENCE DATA GND = 0 V; Tamb = 25 °C; tr = tf ≤ 2.0 ns. SYMBOL PARAMETER tPHL/tPLH CONDITIONS propagation delay nAn to nYn TYP. VCC = 1.2 V 5.2 ns VCC = 1.5 V 2.9 ns VCC = 1.8 V 2.1 ns VCC = 2.5 V 1.5 ns VCC = 3.3 V 1.3 ns 5.0 pF outputs enabled 34 pF outputs disabled 1 pF CI input capacitance CPD power dissipation capacitance per buffer notes 1 and 2 Notes 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; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in Volts; ∑ (CL × VCC2 × fo) = sum of outputs. 2. The condition is VI = GND to VCC. FUNCTION TABLE See note 1. INPUTS nOE OUTPUTS nAn nYn L L L L H H H X Z Note 1. H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high impedance OFF-state. 2000 Mar 07 3 UNIT Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 ORDERING AND PACKAGE INFORMATION PACKAGE TYPE NUMBER 74AVCH16244DGG TEMPERATURE RANGE PINS PACKAGE MATERIAL CODE −40 to +85 °C 48 TSSOP plastic SOT362-1 PINNING PIN SYMBOL DESCRIPTION 1 1OE output enable input (active LOW) 2, 3, 5 and 6 1Y0 to 1Y3 data outputs 4, 10, 15, 21, 28, 34, 39 and 45 GND ground (0 V) 7, 18, 31 and 42 VCC positive supply voltage 8, 9, 11 and 12 2Y0 to 2Y3 data outputs 13, 14, 16 and 17 3Y0 to 3Y3 data outputs 19, 20, 22 and 23 4Y0 to 4Y3 data outputs 24 4OE output enable input (active LOW) 25 3OE output enable input (active LOW) 26, 27, 29 and 30 4A3 to 4A0 data inputs 32, 33, 35 and 36 3A3 to 3A0 data inputs 37, 38, 40 and 41 2A3 to 2A0 data inputs 43, 44, 46 and 47 1A3 to 1A0 data inputs 48 2OE output enable input (active LOW) 2000 Mar 07 4 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 handbook, halfpage handbook, halfpage 1OE 1 48 2OE 1Y0 2 47 1A0 1Y1 3 46 1A1 GND 4 45 GND 1Y2 5 44 1A2 1Y3 6 43 1A3 VCC 7 42 VCC 2Y0 8 41 2A0 2Y1 9 40 2A1 nA0 nY0 nA1 nY1 nA2 nY2 nA3 nY3 nOE MNA502 GND 10 39 GND 2Y2 11 38 2A2 37 2A3 2Y3 12 3Y0 13 Fig.4 Logic symbol. 16244 36 3A0 3Y1 14 35 3A1 GND 15 34 GND handbook, halfpage 1 48 25 24 3Y2 16 33 3A2 3Y3 17 32 3A3 47 1EN 2EN 3EN 4EN 1 1 2 46 3 VCC 18 31 VCC 44 5 4Y0 19 30 4A0 43 6 4Y1 20 29 4A1 41 1 2 8 40 9 GND 21 28 GND 38 11 4Y2 22 27 4A2 37 12 4Y3 23 26 4A3 36 4OE 24 25 3OE 35 14 33 16 32 17 1 3 13 MNA501 30 1 4 19 29 20 27 22 26 23 MNA503 Fig.3 Pin configuration. 2000 Mar 07 Fig.5 IEEE/IEC logic symbol. 5 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 RECOMMENDED OPERATING CONDITIONS SYMBOL VCC PARAMETER DC supply voltage CONDITIONS according to JEDEC Low Voltage Standards DC input voltage VO DC output voltage MAX. UNIT 1.4 1.6 V 1.65 1.95 V 2.3 2.7 V 3.0 3.6 V 1.2 3.6 V 0 3.6 V output 3-state 0 3.6 V output HIGH or LOW state 0 VCC V for low-voltage applications VI MIN. Tamb operating ambient temperature in free air −40 +85 °C tr, tf input rise and fall ratios VCC = 1.4 to 1.6 V 0 40 ns/V VCC = 1.65 to 2.3 V 0 30 ns/V VCC = 2.3 to 3.0 V 0 20 ns/V VCC = 3.0 to 3.6 V 0 10 ns/V LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134); voltages are referenced to GND (ground = 0 V). SYMBOL PARAMETER VCC DC supply voltage CONDITIONS MIN. MAX. UNIT −0.5 +4.6 V IIK DC input diode current VI < 0 − −50 mA VI DC input voltage for inputs; note 1 −0.5 +4.6 V IOK DC output clamping diode current VO < 0 − −50 mA VO DC output voltage output HIGH or LOW state; note 1 −0.5 VCC + 0.5 V output 3-state; note 1 −0.5 +4.6 V VO = 0 to VCC − 50 mA − ±100 mA −65 +150 °C − 500 mW IO DC output sink current ICC, IGND DC VCC or GND current Tstg storage temperature PD power dissipation per package for temperature range: −40 to +85 °C; note 2 Notes 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. Above 60 °C the value of PD derates linearly with 5.5 mW/K. 2000 Mar 07 6 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 DC CHARACTERISTICS Over recommended operating conditions; voltages are referenced to GND (ground = 0 V). Tamb = −40 to +85 °C TEST CONDITIONS SYMBOL PARAMETER OTHER VIH VIL VOH VOL HIGH-level input voltage LOW-level output voltage TYP.(1) MIN. UNIT MAX. 1.2 VCC − − V 1.4 to 1.6 0.65 × VCC 0.9 − V 1.65 to 1.95 0.65 × VCC 0.9 − V 2.3 to 2.7 1.2 − V 1.7 3.0 to 3.6 2.0 1.5 − V 1.2 − − GND V 1.4 to 1.6 − 0.9 0.35 × VCC V 1.65 to 1.95 − 0.9 0.35 × VCC V 2.3 to 2.7 − 1.2 0.7 V 3.0 to 3.6 − 1.5 0.8 V IO = −100 µA 1.65 to 3.6 VCC − 0.20 VCC − V IO = −3 mA 1.4 VCC − 0.35 VCC − 0.21 − V IO = −4 mA 1.65 VCC − 0.45 VCC − 0.25 − V IO = −8 mA 2.3 VCC − 0.55 VCC − 0.37 − V IO = −12 mA 3.0 VCC − 0.70 VCC − 0.47 − V LOW-level input voltage HIGH-level output voltage VCC (V) VI = VIH or VIL VI = VIH or VIL IO = 100 µA 1.65 to 3.6 − GND 0.20 V IO = 3 mA 1.4 − 0.22 0.35 V IO = 4 mA 1.65 − 0.24 0.45 V IO = 8 mA 2.3 − 0.38 0.55 V IO = 12 mA 3.0 − 0.53 0.70 V II input leakage current per pin VI = VCC or GND 1.4 to 3.6 − 0.1 2.5 µA Ioff power-off leakage current VI or VO = 3.6 V 0 − 0.1 ±10 µA IIHZ/IILZ input current for common I/O pins VI = VCC or GND 1.4 to 3.6 − 0.1 12.5 µA IOZ 3-state output OFF-state current VI = VIH or VIL; VO = VCC or GND 1.4 to 2.7 − 0.1 5 µA 3.0 to 3.6 − 0.1 10 µA quiescent supply current VI = VCC or GND; IO = 0 1.4 to 2.7 − 0.1 20 µA 3.0 to 3.6 − 0.2 40 µA bus-hold LOW sustaining current VI = 0.35 × VCC 1.65 25 − − µA VI = 0.7 V 2.3 45 − − µA VI = 0.8 V 3.0 75 − − µA ICC IBHL 2000 Mar 07 7 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 Tamb = −40 to +85 °C TEST CONDITIONS SYMBOL PARAMETER OTHER IBHH IBHLO IBHHO TYP.(1) MIN. UNIT MAX. 1.65 −25 − − µA 2.3 −45 − − µA 3.0 −75 − − µA bus-hold LOW overdrive current 1.95 200 − − µA 2.7 300 − − µA 3.6 450 − − µA bus-hold HIGH overdrive current 1.95 −200 − − µA 2.7 −300 − − µA 3.6 −450 − − µA bus-hold HIGH sustaining current VI = 0.65 × VCC VCC (V) Note 1. All typical values are measured at Tamb = 25 °C. AC CHARACTERISTICS GND = 0 V; tr = tf ≤ 2.0 ns. Tamb = −40 to +85 °C TEST CONDITIONS SYMBOL PARAMETER WAVEFORMS tPHL/tPLH tPZH/tPZL tPHZ/tPLZ propagation delay; nAn to nYn 3-state output enable time; nOE to nYn 3-state output disable time; nOE to nYn see Figs 6 and 8 see Figs 7 and 8 see Figs 7 and 8 VCC (V) MIN. TYP.(1) UNIT MAX. − 5.2 − ns 1.40 to 1.60 − 2.9 − ns 1.65 to 1.95 0.8 2.1 3.4 ns 2.3 to 2.7 1.5 2.2 ns 1.2 0.7 3.0 to 3.6 0.6 1.3 2.0 ns 1.2 − 5.7 − ns 1.40 to 1.60 − 4.0 − ns 1.65 to 1.95 1.3 3.3 6.8 ns 2.3 to 2.7 0.9 2.2 4.0 ns 3.0 to 3.6 0.7 1.9 3.5 ns 1.2 − 5.9 − ns 1.40 to 1.60 − 4.2 − ns 1.65 to 1.95 1.6 3.7 6.2 ns 2.3 to 2.7 1.0 1.9 4.3 ns 3.0 to 3.6 1.1 2.2 3.5 ns Note 1. All typical values are measured at Tamb = 25 °C and at VCC respectively 1.2, 1.5, 1.8, 2.5 and 3.3 V. 2000 Mar 07 8 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 AC WAVEFORMS handbook, halfpage VI nAn input VM GND t PLH t PHL VOH nYn output VM VOL VCC VM MNA504 VI ≤2.3 to 2.7 V 0.5 × VCC VCC 3.0 to 3.6 V 0.5 × VCC VCC VOL and VOH are typical output voltage drop that occur with the output load. Fig.6 The input (nAn) to output (nYn) propagation delay. VI handbook, full pagewidth nOE input VM GND t PLZ t PZL VCC output LOW-to-OFF OFF-to-LOW VM VX VOL t PZH t PHZ VOH VY output HIGH-to-OFF OFF-to-HIGH GND VM outputs enabled outputs disabled outputs enabled MNA478 VCC VM VX VY VI ≤2.3 to 2.7 V 0.5 × VCC VOL + 0.15 V VOH − 0.15 V VCC 3.0 to 3.6 V 0.5 × VCC VOL + 0.3 V VOH − 0.3 V VCC VOL and VOH are typical output voltage drop that occur with the output load. Fig.7 The 3-state enable and disable times. 2000 Mar 07 9 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 S1 handbook, full pagewidth VCC VI PULSE GENERATOR 2 × VCC open GND R load VO D.U.T. CL RT R load MNA505 VCC (V) TEST S1 VI Rload CL 1.2 VCC 2000 Ω 15 pF 1.4 to 1.6 VCC 2000 Ω 15 pF tPLH/tPHL open 1.65 to 1.95 VCC 1000 Ω 30 pF tPLZ/tPZL 2 × VCC 2.3 to 2.7 VCC 500 Ω 30 pF tPHZ/tPZH GND 3.0 to 3.6 VCC 500 Ω 30 pF Fig.8 Load circuitry for switching times. 2000 Mar 07 10 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 PACKAGE OUTLINE TSSOP48: plastic thin shrink small outline package; 48 leads; body width 6.1 mm SOT362-1 E D A X c HE y v M A Z 48 25 Q A2 (A 3) A1 pin 1 index A θ Lp L 1 detail X 24 w M bp e 2.5 0 5 mm scale DIMENSIONS (mm are the original dimensions). UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z θ mm 1.2 0.15 0.05 1.05 0.85 0.25 0.28 0.17 0.2 0.1 12.6 12.4 6.2 6.0 0.5 8.3 7.9 1 0.8 0.4 0.50 0.35 0.25 0.08 0.1 0.8 0.4 8 0o Notes 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT362-1 2000 Mar 07 REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION ISSUE DATE 95-02-10 99-12-27 MO-153 11 o Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state SOLDERING 74AVCH16244 If wave soldering is used the following conditions must be observed for optimal results: Introduction to soldering surface mount packages • Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” (document order number 9398 652 90011). • For packages with leads on two sides and a pitch (e): – larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; There is no soldering method that is ideal for all surface mount IC packages. Wave soldering is not always suitable for surface mount ICs, or for printed-circuit boards with high population densities. In these situations reflow soldering is often used. – smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. Reflow soldering The footprint must incorporate solder thieves at the downstream end. Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. • For packages with leads on four sides, the footprint must be placed at a 45° angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners. Several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. Throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method. During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Typical reflow peak temperatures range from 215 to 250 °C. The top-surface temperature of the packages should preferable be kept below 230 °C. Typical dwell time is 4 seconds at 250 °C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. Wave soldering Manual soldering Conventional single wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. To overcome these problems the double-wave soldering method was specifically developed. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C. 2000 Mar 07 12 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state 74AVCH16244 Suitability of surface mount IC packages for wave and reflow soldering methods SOLDERING METHOD PACKAGE REFLOW(1) WAVE BGA, LFBGA, SQFP, TFBGA not suitable suitable(2) HBCC, HLQFP, HSQFP, HSOP, HTQFP, HTSSOP, SMS not PLCC(3), SO, SOJ suitable LQFP, QFP, TQFP SSOP, TSSOP, VSO suitable suitable suitable not recommended(3)(4) suitable not recommended(5) suitable Notes 1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”. 2. These packages are not suitable for wave soldering as a solder joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version). 3. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners. 4. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 5. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm. DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. 2000 Mar 07 13 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state NOTES 2000 Mar 07 14 74AVCH16244 Philips Semiconductors Product Specification 16-bit buffer/line driver; 3.6 V tolerant; 3-state NOTES 2000 Mar 07 15 74AVCH16244 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140, Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Printed in The Netherlands 245004/01/pp16 Date of release: 2000 Mar 07 Document order number: 9397 750 06759