54AC16640, 74AC16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS240A – JULY 1990 – REVISED APRIL 1996 D D D D D D 54AC16640 . . . WD PACKAGE 74AC16640 . . . DL PACKAGE (TOP VIEW) Members of the Texas Instruments Widebus Family Flow-Through Architecture Optimizes PCB Layout Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise EPIC (Enhanced-Performance Implanted CMOS) 1-µm Process 500-mA Typical Latch-Up Immunity at 125°C Package Options Include Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Pin Spacings 1DIR 1B1 1B2 GND 1B3 1B4 VCC 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VCC 2B5 2B6 GND 2B7 2B8 2DIR description The ’AC16640 are inverting 16-bit transceivers designed for asynchronous communication between data buses. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They 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 (1DIR and 2DIR) inputs. The output-enable (1OE and 2OE) inputs can be used to disable the device so that the buses are effectively isolated. 1 48 2 47 3 46 4 45 5 44 6 43 7 42 8 41 9 40 10 39 11 38 12 37 13 36 14 35 15 34 16 33 17 32 18 31 19 30 20 29 21 28 22 27 23 26 24 25 1OE 1A1 1A2 GND 1A3 1A4 VCC 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCC 2A5 2A6 GND 2A7 2A8 2OE The 74AC16640 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The 54AC16640 is characterized for operation over the full military temperature range of –55°C to 125°C. The 74AC16640 is characterized for operation from –40°C to 85°C. FUNCTION TABLE (each section) INPUTS OPERATION OE DIR L L B data to A bus L H A data to B bus H X Isolation 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 1996, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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 54AC16640, 74AC16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS240A – JULY 1990 – REVISED APRIL 1996 logic symbol† 1OE 1DIR 48 1 25 2OE 2DIR 1A1 24 G3 3 EN1 [BA] 3 EN2 [AB] G6 6 EN4 [BA] 6 EN5 [AB] 47 1 1 1A2 1A3 1A4 1A5 1A6 1A7 1A8 2A1 3 44 5 43 6 41 8 40 9 38 11 37 12 36 13 4 2A3 2A4 2A5 2A6 2A7 2A8 1B1 2 46 1 1 2A2 2 1 1B2 1B3 1B4 1B5 1B6 1B7 1B8 2B1 5 35 14 33 16 32 17 30 19 29 20 27 22 26 23 2B2 2B3 2B4 2B5 2B6 2B7 2B8 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram (positive logic) 1OE 1DIR 1A1 48 2OE 1 2DIR 47 2 1B1 2A1 25 24 36 To Seven Other Channels To Seven Other Channels 2 POST OFFICE BOX 655303 13 • DALLAS, TEXAS 75265 2B1 54AC16640, 74AC16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS240A – JULY 1990 – REVISED APRIL 1996 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±400 mA Maximum power dissipation at TA = 55°C (in still air)(see Note 2): DL package . . . . . . . . . . . . . . . . . . . . 1.2 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 voltage ratings may be exceeded if the input and output current ratings are observed. 2. The maximum package power dissipation is calculated using a junction temperature of 150°C and a board trace length of 750 mils. recommended operating conditions (see Note 3) 54AC16640 VCC VIH Supply voltage High-level input voltage VCC = 3 V VCC = 4.5 V VCC = 5.5 V VCC = 3 V VIL VI VO IOH IOL ∆t/∆v Low-level input voltage Low-level output current MAX 3 5 5.5 MIN NOM MAX 3 5 5.5 2.1 2.1 3.15 3.15 3.85 3.85 0 Output voltage High-level output current NOM VCC = 4.5 V VCC = 5.5 V Input voltage 74AC16640 MIN 0 VCC = 3 V VCC = 4.5 V 0.9 1.35 1.35 1.65 1.65 0 0 VCC VCC –4 –4 –24 –24 VCC = 5.5 V VCC = 3 V –24 –24 12 12 VCC = 4.5 V VCC = 5.5 V 24 24 24 24 Input transition rise or fall rate TA Operating free-air temperature NOTE 3: Unused inputs must be held high or low to prevent them from floating. V V 0.9 VCC VCC UNIT V V V mA mA 0 10 0 10 ns/V –55 125 –40 85 °C PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 54AC16640, 74AC16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS240A – JULY 1990 – REVISED APRIL 1996 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC IOH = –50 µA VOH IOH = –4 mA A or B ports ICC Ci Control inputs Cio A or B ports MIN 74AC16640 MAX MIN 3V 2.9 2.9 2.9 4.5 V 4.4 4.4 4.4 5.5 V 5.4 5.4 5.4 2.58 2.48 2.48 3.94 3.8 3.8 IOH = –24 24 mA A 5.5 V 4.94 4.8 4.8 IOH = –75 mA† 5.5 V IOL = 12 mA Control inputs 54AC16640 3V IOL = 24 mA II IOZ‡ TA = 25°C TYP MAX 4.5 V IOL = 50 µA VOL MIN 3.85 MAX UNIT V 3.85 3V 0.1 0.1 0.1 4.5 V 0.1 0.1 0.1 5.5 V 0.1 0.1 0.1 3V 0.36 0.44 0.44 4.5 V 0.36 0.44 0.44 5.5 V 0.36 0.44 0.44 1.65 1.65 V IOL = 75 mA† VI = VCC or GND 5.5 V 5.5 V ±0.1 ±1 ±1 µA VO = VCC or GND VI = VCC or GND, 5.5 V ±0.5 ±5 ±5 µA 5.5 V 8 80 80 µA IO = 0 VI = VCC or GND VO = VCC or GND 5V 4.5 pF 5V 16 pF † Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. ‡ For I/O ports, the parameter IOZ includes the input leakage current. switching characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A or B B or A tPZH tPZL OE A or B tPHZ tPLZ OE A or B MIN TA = 25°C TYP MAX 54AC16640 MIN 74AC16640 MAX MIN MAX 2.2 6.9 9.1 2.2 10 2.2 10 3 8.5 11 3 11.9 3 11.9 3 8.2 11 3 12.3 3 12.3 3.9 10.9 14 3.9 15.5 3.9 15.5 5.1 8.3 10.6 5.1 11.2 5.1 11.2 4.3 7.8 10.1 4.3 10.6 4.3 10.6 UNIT ns ns ns switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM (INPUT) TO (OUTPUT) tPLH tPHL A or B B or A tPZH tPZL OE A or B tPHZ tPLZ OE A or B MIN TA = 25°C TYP MAX POST OFFICE BOX 655303 74AC16640 MIN MAX MIN MAX 1.8 4.7 1.8 7.3 1.8 7.3 2.6 5.7 2.6 8.6 2.6 8.6 2.4 5.6 2.4 8 2.4 8 3 6.6 3 9.9 3 9.9 5 7.5 5 9.9 5 9.9 4.1 6.5 4.1 9 4.1 9 PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. 4 54AC16640 • DALLAS, TEXAS 75265 UNIT ns ns ns 54AC16640, 74AC16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS240A – JULY 1990 – REVISED APRIL 1996 operating characteristics, VCC = 5 V, TA = 25°C PARAMETER Cpd d TEST CONDITIONS Outputs enabled Power dissipation capacitance per transceiver Outputs disabled pF CL = 50 pF, TYP f = 1 MHz 55 8 UNIT pF PARAMETER MEASUREMENT INFORMATION 2 × VCC 500 Ω From Output Under Test S1 Open GND CL = 50 pF (see Note A) TEST S1 tPLH/tPHL tPLZ/tPZL tPHZ/tPZH Open 2 × VCC GND 500 Ω LOAD CIRCUIT Output Control (low-level enabling) VCC Input 50% 50% 0V tPHL tPLH In-Phase Output 50% VCC 50% VCC 0V tPZL VOH 50% VCC VOL Output Waveform 2 S1 at GND (see Note B) [ VCC tPLZ Output Waveform 1 S1 at 2 × VCC (see Note B) tPLH tPHL Out-of-Phase Output VOH 50% VCC VOL VCC 50% 50% 50% VCC VOL tPHZ tPZH VOLTAGE WAVEFORMS 20% VCC 50% VCC 80% VCC VOH [0V VOLTAGE WAVEFORMS 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 Ω, tr = 3 ns, tf = 3 ns. D. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveform POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 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. 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