SN54AHC245, SN74AHC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCLS230I - OCTOBER 1995 - REVISED JULY 2003 D D SN54AHC245 . . . J OR W PACKAGE SN74AHC245 . . . DB, DGV, DW, N, OR PW PACKAGE (TOP VIEW) Operating Range 2-V to 5.5-V VCC Latch-Up Performance Exceeds 250 mA Per JESD 17 DIR A1 A2 A3 A4 A5 A6 A7 A8 GND description/ordering information The 'AHC245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. These devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OE B1 B2 B3 B4 B5 B6 B7 B8 A2 A1 DIR VCC OE SN54AHC245 . . . FK PACKAGE (TOP VIEW) To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 B1 B2 B3 B4 B5 A8 GND B8 B7 B6 A3 A4 A5 A6 A7 ORDERING INFORMATION PDIP - N SN74AHC245N Tube SN74AHC245DW Tape and reel SN74AHC245DWR Tape and reel SN74AHC245DBR Tube SN74AHC245PW Tape and reel SN74AHC245PWR TVSOP - DGV Tape and reel SN74AHC245DGVR HA245 CDIP - J Tube SNJ54AHC245J SNJ54AHC245J CFP - W Tube SNJ54AHC245W SNJ54AHC245W LCCC - FK Tube SNJ54AHC245FK SNJ54AHC245FK SSOP - DB TSSOP - PW -55C to 125C TOP-SIDE MARKING Tube SOIC - DW -40C to 85C ORDERABLE PART NUMBER PACKAGE TA SN74AHC245N AHC245 HA245 HA245 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright 2003, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 SN54AHC245, SN74AHC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCLS230I - OCTOBER 1995 - REVISED JULY 2003 FUNCTION TABLE (each transceiver) INPUTS OE DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation logic diagram (positive logic) DIR 1 19 A1 OE 2 18 B1 To Seven Other Channels absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V Input voltage range, VI (see Note 1): Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V I/O, Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0): Control inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 mA I/O, Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 mA Package thermal impedance, JA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70C/W DGV package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C Stresses beyond those listed under "absolute maximum ratings" 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. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. 2 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 SN54AHC245, SN74AHC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCLS230I - OCTOBER 1995 - REVISED JULY 2003 recommended operating conditions (see Note 3) SN54AHC245 VCC VIH Supply voltage VCC = 2 V VCC = 3 V High-level input voltage VI VO IOH Low-level input voltage MAX 2 5.5 1.5 VCC = 5.5 V VCC = 2 V VIL MIN t/v MIN MAX 2 5.5 2.1 2.1 3.85 0.5 VCC = 3 V VCC = 5.5 V UNIT V 1.5 3.85 V 0.5 0.9 0.9 1.65 1.65 V Input voltage OE or DIR 0 5.5 0 5.5 V Output voltage A or B 0 VCC -50 0 VCC -50 mA High-level output current VCC = 2 V VCC = 3.3 V 0.3 V -4 -4 -8 -8 50 50 VCC = 3.3 V 0.3 V VCC = 5 V 0.5 V 4 4 8 8 VCC = 3.3 V 0.3 V VCC = 5 V 0.5 V 100 100 20 20 VCC = 5 V 0.5 V VCC = 2 V IOL SN74AHC245 Low-level output current Input transition rise or fall rate V mA mA mA ns/V TA Operating free-air temperature -55 125 -40 85 C NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS IOH = -50 mA VOH IOH = -4 mA IOH = -8 mA IOL = 50 mA VOL IOL = 4 mA IOL = 8 mA A or B inputs II OE or DIR VI = VCC or GND IOZ VO = VCC or GND, VI (OE) = VIL or VIH ICC VI = VCC or GND, Ci OE or DIR Cio A or B inputs VI = VCC or GND IO = 0 MIN TA = 25C TYP MAX 2V 1.9 2 1.9 1.9 3V 2.9 3 2.9 2.9 4.5 V 4.4 4.5 4.4 4.4 3V 2.58 2.48 2.48 4.5 V 3.94 3.8 VCC SN54AHC245 MIN MAX SN74AHC245 MIN MAX UNIT V 3.8 2V 0.1 0.1 0.1 3V 0.1 0.1 0.1 4.5 V 0.1 0.1 0.1 V 3V 0.36 0.5 0.44 4.5 V 0.36 0.5 0.44 5.5 V 0.1 1 1 0 V to 5.5 V 0.1 1* 1 5.5 V 0.25 2.5 2.5 mA 5.5 V 4 40 40 mA 10 pF 5V 2.5 10 VI = VCC or GND 5V 4 * On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V. The parameter IOZ includes the input leakage current. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 mA pF 3 SN54AHC245, SN74AHC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCLS230I - OCTOBER 1995 - REVISED JULY 2003 switching characteristics over recommended operating VCC = 3.3 V 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE tPLH tPHL A or B B or A CL = 15 pF tPZH tPZL OE A or B CL = 15 pF tPHZ tPLZ OE A or B CL = 15 pF tPLH tPHL A or B B or A CL = 50 pF tPZH tPZL OE A or B CL = 50 pF tPHZ tPLZ OE A or B CL = 50 pF tsk(o) MIN free-air TA = 25C TYP MAX temperature SN54AHC245 range, SN74AHC245 MIN MAX MIN MAX 5.8** 8.4** 1** 10** 1 10 5.8** 8.4** 1** 10** 1 10 8.5** 13.2** 1** 15.5** 1 15.5 8.5** 13.2** 1** 15.5** 1 15.5 8.9** 12.5** 1** 15.5** 1 15.5 8.9** 12.5** 1** 15.5** 1 15.5 8.3 11.9 1 13.5 1 13.5 8.3 11.9 1 13.5 1 13.5 11 16.7 1 19 1 19 11 16.7 1 19 1 19 11.5 15.8 1 18 1 18 11.5 15.8 1 18 1 18 CL = 50 pF 1.5*** 1.5 UNIT ns ns ns ns ns ns ns ** On products compliant to MIL-PRF-38535, this parameter is not production tested. *** On products compliant to MIL-PRF-38535, this parameter does not apply. switching characteristics over recommended operating VCC = 5 V 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) LOAD CAPACITANCE tPLH tPHL A or B B or A CL = 15 pF tPZH tPZL OE A or B CL = 15 pF tPHZ tPLZ OE A or B CL = 15 pF tPLH tPHL A or B B or A CL = 50 pF tPZH tPZL OE A or B CL = 50 pF tPHZ tPLZ OE A or B CL = 50 pF tsk(o) MIN TA = 25C TYP MAX SN54AHC245 range, SN74AHC245 MIN MAX MIN MAX 5.5* 1* 6.5* 1 6.5 4* 5.5* 1* 6.5* 1 6.5 5.8* 8.5* 1* 10* 1 10 5.8* 8.5* 1* 10* 1 10 5.6* 7.8* 1* 9.2* 1 9.2 5.6* 7.8* 1* 9.2* 1 9.2 5.5 7.5 1 8.5 1 8.5 5.5 7.5 1 8.5 1 8.5 7.3 10.6 1 12 1 12 7.3 10.6 1 12 1 12 7 9.7 1 11 1 11 7 9.7 1 11 1 11 CL = 50 pF POST OFFICE BOX 655303 temperature 4* 1** * On products compliant to MIL-PRF-38535, this parameter is not production tested. ** On products compliant to MIL-PRF-38535, this parameter does not apply. 4 free-air * DALLAS, TEXAS 75265 1 UNIT ns ns ns ns ns ns ns SN54AHC245, SN74AHC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCLS230I - OCTOBER 1995 - REVISED JULY 2003 noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25C (see Note 4) SN74AHC245 PARAMETER MIN TYP MAX UNIT VOL(P) VOL(V) Quiet output, maximum dynamic VOL 0.9 V Quiet output, minimum dynamic VOL -0.9 V VOH(V) VIH(D) Quiet output, minimum dynamic VOH 4.3 V High-level dynamic input voltage 3.5 VIL(D) Low-level dynamic input voltage NOTE 4: Characteristics are for surface-mount packages only. V 1.5 V TYP UNIT operating characteristics, VCC = 5 V, TA = 25C PARAMETER Cpd TEST CONDITIONS Power dissipation capacitance No load, POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 f = 1 MHz 14 pF 5 SN54AHC245, SN74AHC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCLS230I - OCTOBER 1995 - REVISED JULY 2003 PARAMETER MEASUREMENT INFORMATION From Output Under Test RL = 1 k From Output Under Test Test Point S1 VCC Open TEST GND CL (see Note A) CL (see Note A) S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open Drain Open VCC GND VCC LOAD CIRCUIT FOR 3-STATE AND OPEN-DRAIN OUTPUTS LOAD CIRCUIT FOR TOTEM-POLE OUTPUTS VCC 50% VCC Timing Input tw tsu VCC Input 50% VCC 50% VCC 0V th VCC 50% VCC Data Input 50% VCC 0V 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PULSE DURATION VCC 50% VCC Input 50% VCC 0V tPLH In-Phase Output tPHL 50% VCC tPHL Out-of-Phase Output VOH 50% VCC VOL VCC Output Control Output Waveform 1 S1 at VCC (see Note B) 50% VCC 0V tPZL VOH 50% VCC VOL tPLZ VCC 50% VCC tPZH tPLH 50% VCC 50% VCC Output Waveform 2 S1 at GND (see Note B) VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS VOL + 0.3 V VOL tPHZ 50% VCC VOH - 0.3 V VOH 0 V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES LOW- AND HIGH-LEVEL ENABLING NOTES: A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR 1 MHz, ZO = 50 , tr 3 ns, tf 3 ns. D. The outputs are measured one at a time with one input transition per measurement. E. All parameters and waveforms are not applicable to all devices. Figure 1. Load Circuit and Voltage Waveforms 6 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 PACKAGE OPTION ADDENDUM www.ti.com 23-Mar-2012 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp ACTIVE LCCC FK 20 1 TBD Call TI Call TI 5962-9681801QRA ACTIVE CDIP J 20 1 TBD Call TI Call TI 5962-9681801QSA ACTIVE CFP W 20 1 TBD Call TI Call TI 5962-9681801VRA ACTIVE CDIP J 20 20 TBD A42 N / A for Pkg Type 5962-9681801VSA ACTIVE CFP W 20 25 TBD Call TI N / A for Pkg Type SN74AHC245DBLE OBSOLETE SSOP DB 20 Call TI Call TI SN74AHC245DBR ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DBRE4 ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DBRG4 ACTIVE SSOP DB 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DGVR ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DGVRE4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DGVRG4 ACTIVE TVSOP DGV 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DW ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DWE4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DWG4 ACTIVE SOIC DW 20 25 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DWR ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DWRE4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245DWRG4 ACTIVE SOIC DW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245N ACTIVE PDIP N 20 20 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type SN74AHC245NE4 ACTIVE PDIP N 20 20 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Addendum-Page 1 Samples (Requires Login) 5962-9681801Q2A TBD (3) PACKAGE OPTION ADDENDUM www.ti.com Orderable Device 23-Mar-2012 Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245NSRE4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245NSRG4 ACTIVE SO NS 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245PW ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245PWE4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245PWG4 ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245PWLE OBSOLETE TSSOP PW 20 SN74AHC245PWR ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245PWRE4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74AHC245PWRG4 ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SNJ54AHC245FK ACTIVE LCCC FK 20 1 TBD SNJ54AHC245J ACTIVE CDIP J 20 1 TBD A42 N / A for Pkg Type SNJ54AHC245W ACTIVE CFP W 20 1 TBD Call TI N / A for Pkg Type Call TI Samples (Requires Login) SN74AHC245NSR TBD (3) Call TI POST-PLATE N / A for Pkg Type (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Addendum-Page 2 PACKAGE OPTION ADDENDUM www.ti.com 23-Mar-2012 Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. OTHER QUALIFIED VERSIONS OF SN54AHC245, SN54AHC245-SP, SN74AHC245 : * Catalog: SN74AHC245, SN54AHC245 * Automotive: SN74AHC245-Q1, SN74AHC245-Q1 * Enhanced Product: SN74AHC245-EP, SN74AHC245-EP * Military: SN54AHC245 * Space: SN54AHC245-SP NOTE: Qualified Version Definitions: * Catalog - TI's standard catalog product * Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects * Enhanced Product - Supports Defense, Aerospace and Medical Applications * Military - QML certified for Military and Defense Applications * Space - Radiation tolerant, ceramic packaging and qualified for use in Space-based application Addendum-Page 3 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 7.5 2.5 12.0 16.0 Q1 SN74AHC245DBR SSOP DB 20 2000 330.0 16.4 SN74AHC245DGVR TVSOP DGV 20 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN74AHC245DWR SOIC DW 20 2000 330.0 24.4 10.8 13.0 2.7 12.0 24.0 Q1 SN74AHC245NSR SO NS 20 2000 330.0 24.4 8.2 13.0 2.5 12.0 24.0 Q1 SN74AHC245PWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.0 Q1 SN74AHC245PWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.0 Q1 SN74AHC245PWRG4 TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.0 Q1 Pack Materials-Page 1 8.2 B0 (mm) PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74AHC245DBR SSOP DB 20 2000 367.0 367.0 38.0 SN74AHC245DGVR TVSOP DGV 20 2000 367.0 367.0 35.0 SN74AHC245DWR SOIC DW 20 2000 367.0 367.0 45.0 SN74AHC245NSR SO NS 20 2000 367.0 367.0 45.0 SN74AHC245PWR TSSOP PW 20 2000 367.0 367.0 38.0 SN74AHC245PWR TSSOP PW 20 2000 364.0 364.0 27.0 SN74AHC245PWRG4 TSSOP PW 20 2000 367.0 367.0 38.0 Pack Materials-Page 2 MECHANICAL DATA MPDS006C - FEBRUARY 1996 - REVISED AUGUST 2000 DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE 24 PINS SHOWN 0,40 0,23 0,13 24 13 0,07 M 0,16 NOM 4,50 4,30 6,60 6,20 Gage Plane 0,25 0-8 1 0,75 0,50 12 A Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,08 14 16 20 24 38 48 56 A MAX 3,70 3,70 5,10 5,10 7,90 9,80 11,40 A MIN 3,50 3,50 4,90 4,90 7,70 9,60 11,20 DIM 4073251/E 08/00 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side. Falls within JEDEC: 24/48 Pins - MO-153 14/16/20/56 Pins - MO-194 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 MECHANICAL DATA MSSO002E - JANUARY 1995 - REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0-8 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion not to exceed 0,15. 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