SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 D D D D D D D Member of the Texas Instruments Widebus Family EPIC (Enhanced-Performance Implanted CMOS) Submicron Process Typical VOLP (Output Ground Bounce) < 0.8 V at VCC = 3.3 V, TA = 25°C Typical VOHV (Output VOH Undershoot) > 2 V at VCC = 3.3 V, TA = 25°C 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 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages description This 16-bit bus transceiver and register is designed for low-voltage (3.3-V) VCC operation. The SN74LVC16652 consists of D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers. The device can be used as two 8-bit transceivers or one 16-bit transceiver. DGG OR DL PACKAGE (TOP VIEW) 1OEAB 1CLKAB 1SAB GND 1A1 1A2 VCC 1A3 1A4 1A5 GND 1A6 1A7 1A8 2A1 2A2 2A3 GND 2A4 2A5 2A6 VCC 2A7 2A8 GND 2SAB 2CLKAB 2OEAB 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 25 32 26 31 1OEBA 1CLKBA 1SBA GND 1B1 1B2 VCC 1B3 1B4 1B5 GND 1B6 1B7 1B8 2B1 2B2 2B3 GND 2B4 2B5 2B6 VCC 2B7 2B8 GND 2SBA 2CLKBA 2OEBA Complementary output-enable (OEAB and 27 30 OEBA) inputs control the transceiver functions. 28 29 Select-control (SAB and SBA) inputs select whether real-time or stored data is transferred. A low input level selects real-time data, and a high input level selects stored data. The circuitry used for select control eliminates the typical decoding glitch that occurs in a multiplexer during the transition between stored and real-time data. Figure 1 illustrates the four fundamental bus-management functions that can be performed with the SN74LVC16652. 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 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1 SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 description (continued) Data on the A or B bus, or both, can be stored in the internal D flip-flops by low-to-high transitions at the appropriate clock (CLKAB or CLKBA) inputs regardless of the levels on the select-control or output-enable inputs. When SAB and SBA are in the real-time transfer mode, it is also possible to store data without using the internal D-type flip-flops by simultaneously enabling OEAB and OEBA. In this configuration, each output reinforces its input. When all other data sources to the two sets of bus lines are at high impedance, each set of bus lines remains at its last level configuration. To ensure the high-impedance state during power up or power down, OEBA should be tied to VCC through a pullup resistor and OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver. Active bus-hold circuitry holds unused or floating data inputs at a valid logic level. The SN74LVC16652 is characterized for operation from – 40°C to 85°C. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS OEAB OEBA L L CLKAB CLKBA SAB X X X BUS B BUS A BUS A BUS B SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 SBA L OEAB OEBA H H OEBA H X H CLKAB CLKBA SAB ↑ X ↑ X ↑ ↑ X X X SAB L SBA X BUS B BUS A BUS A OEAB X L L CLKBA X REAL-TIME TRANSFER BUS A TO BUS B BUS B REAL-TIME TRANSFER BUS B TO BUS A CLKAB X SBA X X X STORAGE FROM A, B, OR A AND B OEAB H OEBA L CLKAB CLKBA SAB SBA H or L H or L H H TRANSFER STORED DATA TO A AND/OR B Figure 1. Bus-Management Functions POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 logic symbol† 1OEBA 1OEAB 1CLKBA 1SBA 1CLKAB 1SAB 2OEBA 2OEAB 2CLKBA 2SBA 2CLKAB 2SAB 1A1 56 1 55 54 2 EN1 [BA] EN2 [AB] C3 G4 C5 3 29 28 30 31 27 26 G6 EN7 [BA] EN8 [AB] C9 G10 C11 G12 ≥1 1 5 3D 4 52 1B1 4 1 5D 1A2 1A3 1A4 1A5 1A6 1A7 1A8 2A1 6 1 6 ≥1 2 6 51 8 49 9 48 10 47 12 45 13 44 14 43 ≥1 15 10 7 9D 42 1B2 1B3 1B4 1B5 1B6 1B7 1B8 2B1 10 1 11D 12 ≥1 8 2A2 2A3 2A4 2A5 2A6 2A7 2A8 16 1 12 40 19 38 20 37 21 36 23 34 24 33 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 4 41 17 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2B2 2B3 2B4 2B5 2B6 2B7 2B8 SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 logic diagram (positive logic) 1OEBA 1OEAB 1CLKBA 1SBA 1CLKAB 1SAB 56 1 55 54 2 3 One of Eight Channels 1D C1 1A1 5 52 1B1 1D C1 To Seven Other Channels 2OEBA 2OEAB 2CLKBA 2SBA 2CLKAB 2SAB 29 28 30 31 27 26 One of Eight Channels 1D C1 2A1 15 42 2B1 1D C1 To Seven Other Channels POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 FUNCTION TABLE DATA I/O† INPUTS OEAB OEBA CLKAB CLKBA SAB L H H or L H or L X L H ↑ ↑ X X H ↑ H or L H H ↑ ↑ X X‡ L X H or L ↑ X L L ↑ ↑ X L L X X X L L X H or L X H H X X L H H H or L X H H L H or L H or L H SBA OPERATION OR FUNCTION A1 THRU A8 B1 THRU B8 X Input Input Isolation X Input Input Store A and B data X Input Unspecified‡ Store A, hold B X Input Unspecified‡ Output Store A in both registers Input Hold A, store B Output Input Store B in both registers L Output Input Real-time B data to A bus H Output Input Stored B data to A bus X Input Output Real-time A data to B bus X Input Output Stored A data to B bus Output Stored A data to B bus and Stored B data to A bus X X‡ H Output † The data output functions may be enabled or disabled by a variety of level combinations at the OEAB or OEBA inputs. Data input functions are always enabled; i.e., data at the bus terminals is stored on every low-to-high transition on the clock inputs. ‡ Select control = L; clocks can occur simultaneously. Select control = H; clocks must be staggered in order to load both registers. 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 4.6 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. This value is limited to 4.6 V maximum. 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. 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 recommended operating conditions (see Note 4) MIN MAX 2.7 3.6 VCC VIH Supply voltage VIL VI Low-level input voltage Input voltage 0 VO Output voltage 0 High-level input voltage VCC = 2.7 V to 3.6 V VCC = 2.7 V to 3.6 V IOH High level output current High-level VCC = 2.7 V VCC = 3 V IOL Low level output current Low-level VCC = 2.7 V VCC = 3 V ∆t /∆V Input transition rise or fall rate 2 V V 0.8 V VCC VCC V – 12 12 – 24 24 TA Operating free-air temperature NOTE 4: Unused inputs must be held high or low to prevent them from floating. UNIT V mA mA 0 10 ns / V – 40 85 °C electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VCC† MIN to MAX TEST CONDITIONS IOH = – 100 µA VOH 2.7 IOH = – 12 mA IOH = – 24 mA IOL = 100 µA VOL II II(hold) ( ) Control inputs A or B ports IOZ§ ICC Ci MAX VCC – 0.2 2.2 3 2.4 3 2 0.2 2.7 0.4 3 0.55 VI = VCC or GND VI = 0.8 V 3.6 3 VI = 2 V VI = 0 to 3.6 V IO = 0 Other inputs at VCC or GND VI = VCC or GND VO = VCC or GND µA 75 µA –75 ± 500 3.6 ± 10 µA 3.6 40 µA 500 µA 3 V to 3.6 V Cio A or B ports 3.3 † For conditions shown as MIN or MAX, use the appropriate values under recommended operating conditions. ‡ All typical values are at VCC = 3.3 V, TA = 25°C. § For I/O ports, the parameter IOZ includes the input leakage current. • DALLAS, TEXAS 75265 ±5 V 3.6 3.3 POST OFFICE BOX 655303 UNIT V IOL = 12 mA IOL = 24 mA One input at VCC – 0.6 V, Control inputs TYP‡ MIN to MAX VO = VCC or GND VI = VCC or GND, nICC MIN 3 pF 7 pF 7 SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) VCC = 3.3 V ± 0.3 V VCC = 2.7 V MIN MAX MIN MAX 0 100 0 80 UNIT fclock tw Clock frequency 4.5 4.5 ns tsu th Setup time, A or B before CLKAB↑ or CLKBA↑ Data high or low 5 5 ns Hold time, A or B after CLKAB↑ or CLKBA↑ Data high or low 0 0 ns Pulse duration, CLK high or low MHz switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 2) PARAMETER FROM (INPUT) TO (OUTPUT) A or B B or A fmax tpd VCC = 3.3 V ± 0.3 V MIN MAX VCC = 2.7 V MIN 100 CLKAB or CLKBA A or B SAB or SBA UNIT MAX 80 MHz 1.5 7 8 1.5 8.5 9.5 ns 1.5 8.5 9.5 ten OE or OE A or B 1.5 8 9 ns tdis OE or OE A or B 1.5 8.5 9.5 ns operating characteristics, VCC = 3.3 V, TA = 25°C PARAMETER Cpd d 8 Power dissipation capacitance per transceiver TEST CONDITIONS Outputs enabled Outputs disabled POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 CL = 50 pF, pF f = 10 MHz TYP 25 4 UNIT pF SN74LVC16652 16-BIT BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS SCAS319B – NOVEMBER 1993 – REVISED JULY 1995 PARAMETER MEASUREMENT INFORMATION 6V 500 Ω From Output Under Test S1 Open GND CL = 50 pF (see Note A) 500 Ω TEST S1 tpd tPLZ/tPZL tPHZ/tPZH Open 6V GND 2.7 V LOAD CIRCUIT FOR OUTPUTS 1.5 V Timing Input 0V tw tsu 2.7 V 1.5 V Input 1.5 V th 2.7 V 1.5 V Data Input 1.5 V 0V 0V VOLTAGE WAVEFORMS PULSE DURATION VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 2.7 V 1.5 V Input 1.5 V 0V VOH 1.5 V Output 1.5 V VOL VOH Output 1.5 V 1.5 V 0V 1.5 V VOL tPLZ Output Waveform 1 S1 at 6 V (see Note B) tPLH tPHL 1.5 V tPZL tPHL tPLH 2.7 V Output Control Output Waveform 2 S1 at GND (see Note B) 1.5 V tPZH VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES INVERTING AND NONINVERTING OUTPUTS 3V VOL + 0.3 V VOL tPHZ 1.5 V VOH – 0.3 V VOH [0V 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 ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 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. tPLH and tPHL are the same as tpd. Figure 2. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright 1998, Texas Instruments Incorporated