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| 74VCXH245 Low-Voltage 1.8/2.5/3.3 V 8-Bit Transceiver (3-State, Non-Inverting with Bushold) The 74VCXH245 is an advanced performance, non-inverting 8-bit transceiver. It is designed for very high-speed, very low-power operation in 1.8 V, 2.5 V or 3.3 V systems. The 74VCXH245 is designed as a byte control. The Transmit/Receive (T/Rn) inputs determine the direction of data flow through the bidirectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B to A ports. The Output Enable input (OE), when HIGH, disables both A and B ports by placing them in a HIGH Z condition. The data inputs include active bushold circuitry, eliminating the need for external pullup resistors to hold unused or floating inputs at a valid logic state. Features http://onsemi.com MARKING DIAGRAM 1 QFN MNR2 SUFFIX CASE 485AA VCX H245 ALYWG G * Designed for Low Voltage Operation: VCC = 1.65-3.6 V * High Speed Operation: 3.5 ns max for 3.0 to 3.6 V * * * * * * 4.2 ns max for 2.3 to 2.7 V 8.4 ns max for 1.65 to 1.95 V Static Drive: 24 mA Drive at 3.0 V 18 mA Drive at 2.3 V 6 mA Drive at 1.65 V Includes Active Bushold to Hold Unused or Floating Data Inputs at a Valid Logic State Near Zero Static Supply Current in All Three Logic States (20 mA) Substantially Reduces System Power Requirements Latchup Performance Exceeds 200 mA @ 85C ESD Performance: Human Body Model >2000 V Machine Model >200 V Pb-Free Package is Available A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb-Free Package (Note: Microdot may be in either location) 19 12 20 PIN #1 QFN 11 10 2 Pinout (Top View) 9 ORDERING INFORMATION Device 74VCXH245MNR2 74VCXH245MNR2G Package QFN Shipping 3000/Tape&Reel QFN 3000/Tape&Reel (Pb-Free) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *For additional information on our Pb-Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. (c) Semiconductor Components Industries, LLC, 2005 1 April, 2005 - Rev. 10 Publication Order Number: 74VCXH245/D 74VCXH245 OE 19 T/R 1 2 18 FUNCTION Output Enable Input Transmit/Receive Input Side A Bushold Inputs or 3-State Outputs Side B Bushold Inputs or 3-State Outputs A1 3 17 A2 4 16 A3 5 15 OPERATING MODE Non-Inverting B Data to A Bus A Data to B Bus Z State 8 12 A7 9 11 VCC = Pin 20 GND = Pin 10 A5 7 13 A6 B5 A4 6 14 A0 PIN NAMES PINS OE T/R A0-A7 B0-B7 B0 B1 B2 TRUTH TABLE INPUTS OE L L H T/R L H X B3 B4 H = High Voltage Level L = Low Voltage Level Z = High Impedance State X = High or Low Voltage Level and Transitions are Acceptable B6 B7 Figure 1. Logic Diagram ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK Parameter DC Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current Value -0.5 to + 4.6 -0.5 VI VCC + 0.5 -0.5 VO VCC + 0.5 -50 -50 +50 IO ICC IGND TSTG DC Output Source/Sink Current DC Supply Current Per Supply Pin DC Ground Current Per Ground Pin Storage Temperature Range 50 100 100 -65 to +150 Note 1 VI < GND VO < GND VO > VCC Condition Unit V V V mA mA mA mA mA mA C Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. IO absolute maximum rating must be observed. http://onsemi.com 2 74VCXH245 RECOMMENDED OPERATING CONDITIONS (Note 2) Symbol VCC VI VO IOH IOL IOH IOL IOH IOL TA Dt/DV Supply Voltage Input Voltage Output Voltage HIGH Level Output Current, VCC = 3.0 V - 3.6 V LOW Level Output Current, VCC = 3.0 V - 3.6 V HIGH Level Output Current, VCC = 2.3 V - 2.7 V LOW Level Output Current, VCC = 2.3 V - 2.7 V HIGH Level Output Current, VCC = 1.65 V - 1.95 V LOW Level Output Current, VCC = 1.65 V - 1.95 V Operating Free-Air Temperature Input Transition Rise or Fall Rate, VIN from 0.8 V to 2.0 V, VCC = 3.0 V -40 0 Parameter Operating Data Retention Only Min 1.65 1.2 -0.3 0 Typ 3.3 3.3 Max 3.6 3.6 VCC VCC -24 24 -18 18 -6 6 +85 10 Unit V V V mA mA mA mA mA mA C ns/V 2. Floating or unused control inputs must be held HIGH or LOW. Xmax = 0.28 0.5 Pitch 0.65 1.45 2.8 3.45 All Dimensions in mm. 4.80 Figure 2. 20 Pad QFN Suggested Board Layout (Bottom View) http://onsemi.com 3 74VCXH245 DC ELECTRICAL CHARACTERISTICS TA = -40C to +85C Symbol VIH Characteristic HIGH Level Input Voltage (Note 3) Condition 1.65 V VCC < 1.95 V 2.3 V VCC 2.7 V 2.7 V < VCC 3.6 V VIL LOW Level Input Voltage (Note 3) 1.65 V VCC < 1.95 V 2.3 V VCC 2.7 V 2.7 V < VCC 3.6 V VOH HIGH Level Output Voltage 1.65 V VCC 3.6 V; IOH = -100 mA VCC = 1.65 V; IOH = -6 mA VCC = 2.3 V; IOH = -6 mA VCC = 2.3 V; IOH = -12 mA VCC = 2.3 V; IOH = -18 mA VCC = 2.7 V; IOH = -12 mA VCC = 3.0 V; IOH = -18 mA VCC = 3.0 V; IOH = -24 mA VOL LOW Level Output Voltage 1.65 V VCC 3.6 V; IOL = 100 mA VCC = 1.65 V; IOL = 6 mA VCC = 2.3 V; IOL = 12 mA VCC = 2.3 V; IOL = 18 mA VCC = 2.7 V; IOL = 12 mA VCC = 3.0 V; IOL = 18 mA VCC = 3.0 V; IOL = 24 mA II II(HOLD) ( ) Input Leakage Current Minimum Bushold Input Current VIN = VCC or GND; VCC = 3.6 V VCC = 3.0 V, VIN = 0.8 V VCC = 3.0 V, VIN = 2.0 V VCC = 2.3 V, VIN = 0.7 V VCC = 2.3 V, VIN = 1.6 V VCC = 1.65 V, VIN = 0.57 V VCC = 1.65 V, VIN = 1.07 V II(OD) () Minimum Bushold Over-Drive Current Needed to Change State VCC = 3.6 V, (Note 4) VCC = 3.6 V, (Note 5) VCC = 2.7 V, (Note 4) VCC = 2.7 V, (Note 5) VCC = 1.95 V, (Note 4) VCC = 1.95 V, (Note 5) IOZ ICC DICC 3. 4. 5. 6. 3-State Output Current Quiescent Supply Current (Note 6) Increase in ICC per Input VO = VCC or GND; VCC = 3.6 V; VI = VIH or VIL 1.65 V VCC 3.6 V; VI = GND or VCC 2.7 V < VCC 3.6 V; VIH = VCC - 0.6 V 75 -75 45 -45 25 -25 450 -450 300 -300 200 -200 10 20 750 mA mA mA mA VCC - 0.2 1.25 2.0 1.8 1.7 2.2 2.4 2.2 0.2 0.3 0.4 0.6 0.4 0.4 0.55 5.0 mA mA V Min 0.65 x VCC 1.6 2.0 0.35 x VCC 0.7 0.8 V V Max Unit V These values of VI are used to test DC electrical characteristics only. An external driver must source at least the specified current to switch from LOW-to-HIGH. An external driver must sink at least the specified current to switch from HIGH-to-LOW. Outputs disabled or 3-state only. http://onsemi.com 4 74VCXH245 AC CHARACTERISTICS (Note 7; tR = tF = 2.0 ns; CL = 30 pF; RL = 500 W) Limits TA = -40C to +85C VCC = 3.0 V to 3.6 V Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tOSHL tOSLH Parameter Propagation Delay Input to Output Output Enable Time to High and Low Level Output Disable Time From High and Low Level Output-to-Output Skew (Note 8) Waveform 1 2 2 Min 0.6 0.6 0.6 0.6 0.6 0.6 Max 3.5 3.5 4.5 4.5 3.6 3.6 0.5 0.5 VCC = 2.3 V to 2.7 V Min 0.8 0.8 0.8 0.8 0.8 0.8 Max 4.2 4.2 5.6 5.6 4.0 4.0 0.5 0.5 VCC = 1.65 V to1.95 V Min 1.5 1.5 1.5 1.5 1.5 1.5 Max 8.4 8.4 9.8 9.8 7.2 7.2 0.75 0.75 Unit ns ns ns ns 7. For CL = 50 pF, add approximately 300 ps to the AC maximum specification. 8. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH); parameter guaranteed by design. DYNAMIC SWITCHING CHARACTERISTICS TA = +25C Symbol VOLP Characteristic Dynamic LOW Peak Voltage (Note 9) (N ) Condition VCC = 1.8 V, CL = 30 pF, VIH = VCC, VIL = 0 V VCC = 2.5 V, CL = 30 pF, VIH = VCC, VIL = 0 V VCC = 3.3 V, CL = 30 pF, VIH = VCC, VIL = 0 V VOLV Dynamic LOW Valley Voltage (Note 9) (N ) VCC = 1.8 V, CL = 30 pF, VIH = VCC, VIL = 0 V VCC = 2.5 V, CL = 30 pF, VIH = VCC, VIL = 0 V VCC = 3.3 V, CL = 30 pF, VIH = VCC, VIL = 0 V VOHV Dynamic HIGH Valley Voltage (N ) (Note 10) VCC = 1.8 V, CL = 30 pF, VIH = VCC, VIL = 0 V VCC = 2.5 V, CL = 30 pF, VIH = VCC, VIL = 0 V VCC = 3.3 V, CL = 30 pF, VIH = VCC, VIL = 0 V Typ 0.3 0.7 1.0 -0.3 -0.7 -1.0 1.3 1.7 2.0 V V Unit V 9. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the LOW state. 10. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in the HIGH state. CAPACITIVE CHARACTERISTICS Symbol CIN COUT CPD Parameter Input Capacitance Output Capacitance Power Dissipation Capacitance Condition Note 11 Note 11 Note 11, 10 MHz Typical 6 7 20 Unit pF pF pF 11. VCC = 1.8, 2.5 or 3.3 V; VI = 0 V or VCC. http://onsemi.com 5 74VCXH245 VIH An, Bn Vm tPLH Bn, An Vm WAVEFORM 1 - PROPAGATION DELAYS tR = tF = 2.0 ns, 10% to 90%; f = 1 MHz; tW = 500 ns VIH OEn, T/Rn tPZH An, Bn tPZL An, Bn Vm Vm Vm tPHZ Vm 0V VOH Vy 0V tPLZ VCC Vx VOL Vm tPHL Vm VOL 0V VOH WAVEFORM 2 - OUTPUT ENABLE AND DISABLE TIMES tR = tF = 2.0 ns, 10% to 90%; f = 1 MHz; tW = 500 ns Figure 3. AC Waveforms VCC Symbol VIH Vm Vx Vy 3.3 V 0.3 V 2.7 V 1.5 V VOL + 0.3 V VOH - 0.3 V VCC RL CL RL 6 V or VCC x 2 OPEN GND 2.5 V 0.2 V VCC VCC/2 VOL + 0.15 V VOH - 0.15 V 1.8 V 0.15 V VCC VCC/2 VOL + 0.15 V VOH - 0.15 V PULSE GENERATOR RT DUT TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ SWITCH Open 6 V at VCC = 3.3 0.3 V; VCCx 2 at VCC = 2.5 0.2 V; 1.8 V 0.15 V GND CL = 30 pF or equivalent (Includes jig and probe capacitance) RL = 500 W or equivalent RT = ZOUT of pulse generator (typically 50 W) Figure 4. Test Circuit http://onsemi.com 6 74VCXH245 PACKAGE DIMENSIONS QFN MNR2 SUFFIX CASE 485AA-01 ISSUE A D A B PIN ONE REFERENCE NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. DIMENSIONS b APPLIES TO PLATED TERMINAL AND IS MEASURED BETWEEN 0.25 AND 0.30 MM FROM TERMINAL. 4. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. DIM A A1 A2 A3 b D D2 E E2 e K L MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.65 0.75 0.20 REF 0.20 0.30 2.50 BSC 0.85 1.15 4.50 BSC 2.85 3.15 0.50 BSC 0.20 --- 0.35 0.45 E 2X 0.15 C 2X 0.15 C 0.10 C A2 20X A (A3) D2 e 11 SEATING PLANE 0.08 C A1 C 20X L 9 12 e E2 20X b 2 1 19 20X 0.10 C A B 0.05 C NOTE 3 K http://onsemi.com 7 74VCXH245 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. "Typical" parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 61312, Phoenix, Arizona 85082-1312 USA Phone: 480-829-7710 or 800-344-3860 Toll Free USA/Canada Fax: 480-829-7709 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2-9-1 Kamimeguro, Meguro-ku, Tokyo, Japan 153-0051 Phone: 81-3-5773-3850 ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. http://onsemi.com 8 74VCXH245/D |
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