SCAS433A − OCTOBER 1993 − REVISED JULY 1995 D EPIC (Enhanced-Performance Implanted D D D D D DGG OR DL PACKAGE (TOP VIEW) CMOS) Submicron Process Member of the Texas Instruments Widebus Family ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) Latch-Up Performance Exceeds 250 mA Per JEDEC Standard JESD-17 Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors Package Options Include Plastic Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages OEA CLKEN1B 2B3 GND 2B2 2B1 VCC A1 A2 A3 GND A4 A5 A6 A7 A8 A9 GND A10 A11 A12 VCC 1B1 1B2 GND 1B3 CLKEN2B SEL description The SN74ALVC16270 is a 12-bit to 24-bit registered bus exchanger, which is intended for use in applications where data must be transferred from a narrow high-speed bus to a wide lower-frequency bus. This device is designed specifically for low-voltage (3.3-V) VCC operation. 1 56 2 55 3 54 4 53 5 52 6 51 7 50 8 49 9 48 10 47 11 46 12 45 13 44 14 43 15 42 16 41 17 40 18 39 19 38 20 37 21 36 22 35 23 34 24 33 OEB CLKENA2 2B4 GND 2B5 2B6 VCC 2B7 2B8 2B9 GND 2B10 2B11 2B12 1B12 1B11 1B10 GND 1B9 1B8 1B7 VCC 1B6 1B5 GND 1B4 CLKENA1 CLK The device provides synchronous data exchange 25 32 between the two ports. Data is stored in the 26 31 internal registers on the low-to-high transition of 27 30 the clock (CLK) input when the appropriate 28 29 CLKEN inputs are low. The select (SEL) line selects 1B or 2B data for the A outputs. For data transfer in the A-to-B direction, a two-stage pipeline is provided in the A-to-1B path, with a single storage register in the A to 2B path. Proper control of the CLKENA inputs allows two sequential 12-bit words to be presented synchronously as a 24-bit word on the B port. Data flow is controlled by the active-low output enables (OEA, OEB). The control terminals are registered to synchronize the bus direction changes with CLK. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. The SN74ALVC16270 is available in TI’s shrink small-outline (DL) and thin shrink small-outline (DGG) packages, which provide twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The SN74ALVC16270 is characterized for operation from − 40°C to 85°C. 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. EPIC and Widebus are trademarks of Texas Instruments Incorporated. Copyright 1995, Texas Instruments Incorporated !"#$ % &'!!($ #% )'*+&#$ ,#$(!,'&$% &!" $ %)(&&#$% )(! $.( $(!"% (/#% %$!'"($% %$#,#!, 0#!!#$1- !,'&$ )!&(%%2 ,(% $ (&(%%#!+1 &+',( $(%$2 #++ )#!#"($(!%- • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 1 SCAS433A − OCTOBER 1993 − REVISED JULY 1995 Function Tables OUTPUT ENABLE OUTPUTS INPUTS CLK OEA OEB A 1B, 2B ↑ H H Z Z ↑ H L Z Active ↑ L H Active Z ↑ L L Active Active A-TO-B STORAGE (OEB = L) INPUTS OUTPUTS CLKENA1 CLKENA2 CLK L H ↑ L H ↑ L L L L A L 1B L† 2B 2B0‡ H H† 2B0‡ ↑ L L† L ↑ H H† H 1B0‡ 1B0‡ H H L ↑ L H L ↑ H L H H X X 1B0‡ 2B0‡ † Two CLK edges are needed to propagate data. ‡ Output level before the indicated steady-state input conditions were established B-TO-A STORAGE (OEA = L) INPUTS OUTPUT A CLKEN1B CLKEN2B CLK SEL 1B 2B H X X H X X X H X L X X L X ↑ H L X L L X ↑ H H X H X L ↑ L X L L A0‡ A0‡ X L ↑ L X H H ‡ Output level before the indicated steady-state input conditions were established 2 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • SCAS433A − OCTOBER 1993 − REVISED JULY 1995 logic diagram (positive logic) CLK 29 2 CLKEN1B CLKEN2B CLKENA1 CLKENA2 OEB SEL OEA 27 30 55 C1 56 1D 28 1 CE 1D C1 1D C1 G1 A1 1B1 CE C1 1 8 23 1 1D 1D 6 2B1 CE CE C1 C1 1D 1D CE C1 1D 1 of 12 Channels • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 3 SCAS433A − OCTOBER 1993 − REVISED JULY 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 4.6 V Input voltage range, VI: Except I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V I/O ports (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V Output voltage range, VO (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 100 mA Maximum power dissipation at TA = 55°C (in still air) (see Note 3): DGG package . . . . . . . . . . . . . . . . . . 1 W DL package . . . . . . . . . . . . . . . . . . 1.4 W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C † 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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. The input and output positive-voltage ratings may be exceeded up to 4.6 V if the input and output clamp-current ratings are observed. 3. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils. For more information, refer to the Package Thermal Considerations application note in the 1994 ABT Advanced BiCMOS Technology Data Book, literature number SCBD002B. recommended operating conditions (see Note 4) MIN MAX 2.3 3.6 VCC Supply voltage VIH High-level input voltage VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V VIL Low-level input voltage VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V VI VO Input voltage 0 Output voltage 0 IOH High-level output current IOL Low-level output current ∆t /∆v Input transition rise or fall rate 4 • • V 2 0.7 0.8 VCC VCC −12 VCC = 3 V VCC = 2.3 V −24 VCC = 2.7 V VCC = 3 V 12 POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 V 1.7 VCC = 2.3 V VCC = 2.7 V TA Operating free-air temperature NOTE 4: Unused control inputs must be held high or low to prevent them from floating. UNIT −12 V V V mA 12 mA 24 0 10 ns / V −40 85 °C SCAS433A − OCTOBER 1993 − REVISED JULY 1995 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER IOH = − 100 µA IOH = − 6 mA, VOH VOL 2.3 V VCC −0.2 2 2.3 V 1.7 IOH = − 12 mA VIH = 2 V VIH = 2 V 2.7 V 2.2 3V 2.4 IOH = − 24 mA, IOL = 100 µA VIH = 2 V 3V 2 MIN to MAX 0.2 IOL = 6 mA, VIL = 0.7 V VIL = 0.7 V 2.3 V 0.4 2.3 V 0.7 VIL = 0.8 V VIL = 0.8 V 2.7 V 0.4 3V 0.55 IOL = 24 mA, VI = VCC or GND II(hold) 2.3 V VI = 0.8 V VI = 2 V 3V ±5 V µA 45 −45 µA 75 VI = VCC or GND, One input at VCC − 0.6 V, Control inputs UNIT V 3.6 V VI = 0.7 V VI = 1.7 V VI = 0 to 3.6 V VO = VCC or GND IOZ§ ICC nICC Ci MIN to MAX TA = − 40°C to 85°C MIN TYP‡ MAX VIH = 1.7 V VIH = 1.7 V IOL = 12 mA II VCC† TEST CONDITIONS IO = 0 Other inputs at VCC or GND 3.6 V ± 500 3.6 V ± 10 µA 3.6 V 40 µA 750 µA 3 V to 3.6 V VI = VCC or GND VO = VCC or GND 3.3 V Cio A or B ports 3.3 V † For conditions shown as MIN or MAX, use the appropriate values under recommended operating conditions. ‡ All typical values are at VCC = 3.3 V. § For I/O ports, the parameter IOZ includes the input leakage current. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • −75 3.5 pF 9 pF 5 SCAS433A − OCTOBER 1993 − REVISED JULY 1995 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) VCC = 2.5 V ± 0.2 V MIN fclock tw tsu th MAX Clock frequency Hold time MIN 150 Pulse duration, CLK high or low Setup time VCC = 2.7 V MAX VCC = 3.3 V ± 0.3 V MIN 150 150 3.3 3.3 3.3 A data before CLK↑ High or low 4.1 3.8 3.1 B data before CLK↑ High or low 0.9 1.2 0.9 CLKENA1 or CLKENA2 before CLK↑ High or low 3.5 3.2 2.7 CLKEN1B or CLKEN2B before CLK↑ High or low 3.4 3 2.6 OE data before CLK↑ High or low 4.4 3.9 3.2 A data after CLK↑ High or low 0 0 0.2 B data after CLK↑ High or low 1.4 1 1.7 CLKENA1 or CLKENA2 after CLK↑ High or low 0 0.1 0.3 CLKEN1B or CLKEN2B after CLK↑ High or low 0 0 0.6 OE after CLK↑ High or low 0 0 0.1 UNIT MAX MHz ns ns ns switching characteristics over recommended operating free-air temperature range (unless otherwise noted) (see Figures 1 and 2) PARAMETER tpd ten tdis 6 FROM (INPUT) TO (OUTPUT) CLK VCC = 2.5 V ± 0.2 V MIN MAX B 2 CLK A SEL A CLK CLK VCC = 2.7 V UNIT MAX MIN MAX 6.5 5.8 1.1 5.1 1.7 6 5.4 1 4.7 1.9 6.8 6.4 1 5.5 A or B 1.6 7.5 6.8 1 6 ns A or B 2.6 7.4 6.5 1.1 5.8 ns • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • MIN VCC = 3.3 V ± 0.3 V ns SCAS433A − OCTOBER 1993 − REVISED JULY 1995 PARAMETER MEASUREMENT INFORMATION VCC = 2.5 V " 0.2 V 4.6 V S1 500 Ω From Output Under Test Open GND CL = 50 pF (see Note A) TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 4.6 V GND 500 Ω tw LOAD CIRCUIT 2.3 V Input 2.3 V Timing Input VOLTAGE WAVEFORMS PULSE DURATION th 2.3 V Data Input 1.2 V 1.2 V 0V tPHL Output Waveform 2 S1 at GND (see Note B) VOH 1.2 V 1.2 V VOL 1.2 V 0V tPLZ 2.3 V Output Waveform 1 S1 at 4.6 V (see Note B) 1.2 V tPLH 1.2 V tPZL 2.3 V 1.2 V 2.3 V Output Control (low-level enabling) 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES Output 1.2 V 0V 0V tsu Input 1.2 V 1.2 V 1.2 V tPZH VOL + 0.3 V VOL tPHZ VOH 1.2 V VOH − 0.3 V 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES 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 v 10 MHz, ZO = 50 Ω, tr v 2.5 ns, tf v 2.5 ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPHL and tPLH are the same as tpd. Figure 1. Load Circuit and Voltage Waveforms • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 7 SCAS433A − OCTOBER 1993 − REVISED JULY 1995 PARAMETER MEASUREMENT INFORMATION VCC = 2.7 V AND 3.3 V " 0.3 V 6V S1 500 Ω From Output Under Test Open GND CL = 50 pF (see Note A) TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 6V GND 500 Ω tw LOAD CIRCUIT 2.7 V Input 2.7 V Timing Input 0V 0V VOLTAGE WAVEFORMS PULSE DURATION th 2.7 V Data Input 1.5 V 1.5 V 0V tPHL Output Waveform 2 S1 at GND (see Note B) VOH 1.5 V 1.5 V VOL 1.5 V 0V tPLZ 3V Output Waveform 1 S1 at 6 V (see Note B) 1.5 V tPLH 1.5 V tPZL 2.7 V 1.5 V 2.7 V Output Control (low-level enabling) 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES Output 1.5 V 1.5 V tsu Input 1.5 V 1.5 V tPZH VOL + 0.3 V VOL tPHZ VOH 1.5 V VOH − 0.3 V 0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES 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 v 10 MHz, ZO = 50 Ω, tr v 2.5 ns, tf v 2.5 ns. D. The outputs are measured one at a time with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPHL and tPLH are the same as tpd. Figure 2. Load Circuit and Voltage Waveforms 8 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • PACKAGE OPTION ADDENDUM www.ti.com 30-Mar-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN74ALVC16270DL OBSOLETE SSOP DL 56 TBD Call TI Call TI SN74ALVC16270DLR OBSOLETE SSOP DL 56 TBD Call TI Call TI Lead/Ball Finish MSL Peak Temp (3) (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) 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. 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. Addendum-Page 1 MECHANICAL DATA MSSO001C – JANUARY 1995 – REVISED DECEMBER 2001 DL (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 48 PINS SHOWN 0.025 (0,635) 0.0135 (0,343) 0.008 (0,203) 48 0.005 (0,13) M 25 0.010 (0,25) 0.005 (0,13) 0.299 (7,59) 0.291 (7,39) 0.420 (10,67) 0.395 (10,03) Gage Plane 0.010 (0,25) 1 0°–ā8° 24 0.040 (1,02) A 0.020 (0,51) Seating Plane 0.110 (2,79) MAX 0.004 (0,10) 0.008 (0,20) MIN PINS ** 28 48 56 A MAX 0.380 (9,65) 0.630 (16,00) 0.730 (18,54) A MIN 0.370 (9,40) 0.620 (15,75) 0.720 (18,29) DIM 4040048 / E 12/01 NOTES: A. B. C. D. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. 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