SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 D D D D Compatible With IEEE Std 1194.1-1991 (BTL) TTL A Port, Backplane Transceiver Logic (BTL) B Port Open-Collector B-Port Outputs Sink 100 mA BIAS VCC Pin Minimizes Signal Distortion During Live Insertion/Withdrawal D D D High-Impedance State During Power Up and Power Down B-Port Biasing Network Preconditions the Connector and PC Trace to the BTL High-Level Voltage TTL-Input Structures Incorporate Active Clamping Networks to Aid in Line Termination AI2 AO1 AI1 GND VCC CLKAB/LEAB IMODE1 IMODE0 BG VCC OEA BG GND BIAS VCC B1 RC PACKAGE (TOP VIEW) 52 51 50 49 48 47 46 45 44 43 42 41 40 1 39 2 38 3 37 4 36 5 35 6 34 7 33 8 32 9 31 10 30 11 29 12 28 13 27 GND B2 GND B3 GND B4 GND B5 GND B6 GND B7 GND B8 OEB OEB GND 14 15 16 17 18 19 20 21 22 23 24 25 26 AO7 AI8 AO8 GND VCC CLKBA/LEBA OMODE0 OMODE1 VCC GND AO2 AI3 AO3 AI4 AO4 LOOPBACK AI5 AO5 AI6 AO6 AI7 GND description The SN74FB2033K is an 8-bit transceiver featuring a split input (AI) and output (AO) bus on the TTL-level A port. The common I/O, open-collector B port operates at backplane transceiver logic (BTL) signal levels. The SN74FB2033K is specifically designed to be compatible with IEEE Std 1194.1-1991. The logic element for data flow in each direction is configured by two mode inputs (IMODE1 and IMODE0 for B-to-A, OMODE1 and OMODE0 for A-to-B) as a buffer, a D-type flip-flop, or a D-type latch. When configured in the buffer mode, the inverted input data appears at the output port. In the flip-flop mode, data is stored on the rising edge of the appropriate clock input (CLKAB/LEAB or CLKBA/LEBA). In the latch mode, the clock inputs serve as active-high transparent latch enables. 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 2001, 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 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 description (continued) Data flow in the B-to-A direction, regardless of the logic element selected, is further controlled by the LOOPBACK input. When LOOPBACK is low, B-port data is the B-to-A input. When LOOPBACK is high, the output of the selected A-to-B logic element (before inversion) is the B-to-A input. The AO port-enable/-disable control is provided by OEA. When OEA is low or when VCC is less than 2.5 V, the AO port is in the high-impedance state. When OEA is high, the AO port is active (high or low logic levels). The B port is controlled by OEB and OEB. If OEB is low, or OEB is high, or when VCC is less than 2.5 V, the B port is inactive. If OEB is high and OEB is low, the B port is active. BG VCC and BG GND are the bias-generator reference inputs. The A-to-B and B-to-A logic elements are active, regardless of the state of their associated outputs. The logic elements can enter new data (in flip-flop and latch modes) or retain previously stored data while the associated outputs are in the high-impedance (AO port) or inactive (B port) states. Output clamps are provided on the BTL outputs to reduce switching noise. One clamp reduces inductive ringing effects on VOH during a low-to-high transition. The other clamps out ringing below the BTL VOL voltage of 0.75 V. Both of these clamps are active only during ac switching and do not affect the BTL outputs during steady-state conditions. BIAS VCC establishes a voltage between 1.62 V and 2.1 V on the BTL outputs when VCC is not connected. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING 0°C to 70°C QFP – RC Tube SN74FB2033KRC FB2033K † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 Function Tables FUNCTION INPUTS FUNCTION/MODE OEA OEB OEB OMODE1 OMODE0 IMODE1 IMODE0 LOOPBACK L L X X X X X X L X H X X X X X X H L L L X X X AI to B, buffer mode X H L L H X X X AI to B, flip-flop mode X H L H X X X X AI to B, latch mode H L X X X L L L H X H X X L L L H L X X X L H L H X H X X L H L H L X X X H X L H X H X X H X L H L X X X L L H H X H X X L L H H L X X X L H H H X H X X L H H H L X X X H X H H X H X X H X H H H L X X X X L Isolation B to t AO AO, b buffer ff mode d B to t AO, AO flip-flop fli fl mode d B to t AO AO, llatch t h mode d AI to AO AO, buffer mode AI to AO, AO flip-flop flip flop mode AI to AO, AO latch mode AI to B, B to AO ENABLE/DISABLE INPUTS OEA OEB OUTPUTS OEB AO B L X X Hi Z H X X Active X L L Inactive (H) X L H Inactive (H) X H L Active X H H Inactive (H) BUFFER INPUT OUTPUT L H H L LATCH INPUTS CLK/LE DATA OUTPUT H L H H H L L X Q0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 Function Tables (Continued) LOOPBACK LOOPBACK Q† L B port Point P‡ H † Q is the input to the B-to-A logic element. ‡ P is the output of the A-to-B logic element (see functional block diagram). SELECT INPUTS MODE1 SELECTED-LOGIC ELEMENT MODE0 L L Buffer L H Flip-flop H X Latch FLIP-FLOP INPUTS 4 CLK/LE DATA OUTPUT L X Q0 ↑ L H ↑ H L POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 functional block diagram 23 OEB OEB OMODE1 24 21 20 OMODE0 47 CLKAB/ LEAB Transceiver 1D C1 40 AI1 B1 50 P 1D C1 IMODE1 46 45 IMODE0 19 CLKBA/ LEBA 1D C1 51 Q AO1 OEA 1D 43 C1 One of Eight Channels LOOPBACK 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V Voltage range applied to any B output in the disabled or power-off state, VO . . . . . . . . . . . . . . –0.5 V to 3.5 V Voltage range applied to any output in the high state, VO: A port . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC Input voltage range, VI: Except B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.2 V to 7 V B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –1.2 V to 3.5 V Input clamp current, IIK: Except B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40 mA B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –18 mA Current applied to any single output in the low state, IO: A port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA B port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mA Package thermal impedance, θJA (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44°C/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. NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions (see Note 2) MIN NOM MAX UNIT VCC, BG VCC BIAS VCC Supply voltage 4.75 5 5.25 V Supply voltage 4.5 5 5.5 V VIH High level input voltage High-level VIL Low level input voltage Low-level IOH High-level output current IOL Low level output current Low-level ∆t/∆v Input transition rise or fall rate B port Except B port B port 1.62 2.3 2 0.75 1.47 Except B port 0.8 AO port –3 AO port B port Except B port 24 100 10 V V mA mA ns/V TA Operating free-air temperature 0 70 °C NOTE 2: To ensure proper device operation, all unused inputs must be terminated as follows: A and control inputs to VCC(5 V) or GND, and B inputs to GND only. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 electrical characteristics over recommended operating free-air temperature range PARAMETER VIK VOH B port Except B port AO port TEST CONDITIONS VCC = 4.75 V, VCC = 4.75 V, II = –18 mA II = –40 mA VCC = 4.75 V to 5.25 V, IOH = –10 µA IOH = –3 mA VCC = 4 4.75 75 V AO port IOH = –32 mA IOL = 20 mA 75 V VCC = 4 4.75 IOL = 55 mA IOL = 100 mA VOL B portt VCC = 4 4.75 75 V II Except B port IIH Except B port B port‡ VCC = 0, VCC = 5.25 V, IIL Except B port B port‡ IOL = 4 mA VI = 5.25 V VCC = 0 to 5.25 V, VCC = 5.25 V, VCC = 5.25 V, VCC = 0 to 5.25 V, IOH IOZH B port IOZL IOZPU AO port IOZPD IOS§ A port ICC Ci All outputs on Co AO port VI = 0.5 V or 2.5 V VO = 0.5 V or 2.5 V Ciio B port per IEEE Std 1194.1-1991 VCC = 0 to 4.75 V VCC = 4.75 V to 5.25 V AO port VCC = 2.1 V to 5.25 V, VCC = 2.1 V to 5.25 V, A port VCC = 0 to 2.1 V, VCC = 2.1 V to 0, AO port AI port and control inputs VCC = 5.25 V, VCC = 5.25 V, MIN TYP† MAX –1.2 –0.5 2.5 2.85 VCC–1.1 3.4 0.33 0.5 UNIT V V 2 0.8 0.75 1.1 V 0.5 100 VI = 2.7 V VI = 2.1 V 50 100 VI = 0.5 V VI = 0.75 V –100 –50 µA µA µA VO = 2.1 V VO = 2.7 V 100 µA 50 µA VO = 0.5 V VO = 0.5 V to 2.7 V –50 µA 50 µA VO = 0.5 V to 2.7 V VO = 0 –50 µA –80 –150 mA 45 70 mA –40 IO = 0 5 pF 5 pF 6 6 pF † All typical values are at VCC = 5 V, TA = 25°C ‡ For I/O ports, the parameters IIH and IIL include the off-state output current. § Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. live-insertion characteristics over recommended operating free-air temperature range (see Note 3) PARAMETER ICC (BIAS VCC) VO IO B port B port TEST CONDITIONS VCC = 0 to 4.75 V, VCC = 4.75 V to 5.25 V, VB = 0 to 2 V, VB = 0 to 2 V, VCC = 0, VCC = 0, BIAS VCC = 5 V VCC = 0 to 5.25 V, VCC = 0 to 2.2 V, MIN BIAS VCC = 4.5 V to 5.5 V BIAS VCC = 4.5 V to 5.5 V 1.62 VB = 1 V, OEB = 0 to 0.8 V VI (BIAS VCC) = 4.75 V to 5.25 V OEB = 0 to 5 V MAX UNIT 1.2 mA 10 µA 2.1 V 100 µA –1 100 NOTE 3: Power-up sequence is GND, BIAS VCC, VCC. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 timing requirements over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 2) VCC = 5 V, TA = 25°C 8 MIN MAX 0 150 MIN MAX UNIT 0 150 MHz fclock tw Clock frequency Pulse duration, CLKAB/LEAB or CLKBA/LEBA 3.3 3.3 ns tsu th Setup time, data before CLKAB/LEAB or CLKBA/LEBA↑ 2.7 2.7 ns Hold time, data after CLKAB/LEAB or CLKBA/LEBA↑ 0.7 0.7 ns POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 2) FROM (INPUT) PARAMETER fmax tPLH TO (OUTPUT) VCC = 5 V, TA = 25°C MIN TYP MIN 150 tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH tPHL tPLH AI (through mode) B B (through (th h mode) d ) AO AI (transparent) B B (transparent) (t t) AO OEB B OEB B OEA AO OEA AO CLKAB/LEAB B CLKBA/LEBA AO OMODE B IMODE AO LOOPBACK AO AI AO tPHL tr Rise time, 1.3 V to 1.8 V, B port MAX UNIT MAX 150 MHz 2.8 5.1 6.8 2.8 8.1 2.5 4.2 5.7 2.5 6.1 3.1 4.3 5.1 2.2 6.6 3.1 4.2 5.1 2.6 6 2.8 5.1 6.8 2.8 8.1 2.6 4.2 5.7 2.6 6.1 2.2 4.3 6 2.2 6.6 2.5 4.2 5.6 2.5 6 2.7 5.1 6.8 2.7 8.3 2.4 4.2 5.7 2.4 6.1 2.5 4.8 6.4 2.5 7.7 2.5 4.3 5.9 2.5 6.4 1.6 3.6 5.1 1.6 5.6 2.3 4.3 5.7 2.3 6 1.7 4 5.5 1.7 5.9 1.2 2.9 4.4 1.2 4.7 5.2 6.5 7.8 3.7 9.9 3.8 5.4 7.1 3.4 7.7 1.7 3.8 5.5 1.7 5.9 1.8 3.6 5.1 1.8 5.5 2.9 6.6 8.4 2.9 10 3 5.7 7.5 3 8.3 1.4 4.1 5.8 1.4 6.4 1.9 4.2 5.7 1.9 5.9 2 5.2 7.3 2 8.2 2.6 4.8 6.3 2.6 6.4 1.7 3.9 5.6 1.7 6.1 2.2 4.3 5.7 2.2 5.9 1.8 2.5 3.8 1.7 4 tf tr Fall time, 1.8 V to 1.3 V, B port 1.7 2.5 3.8 1.5 4 Rise time, 10% to 90%, AO 2.5 3.4 4.8 2 5 tf Fall time, 90% to 10%, AO 1.5 2.5 3.8 1 5 1 B-port input pulse rejection ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns output-voltage characteristics PARAMETER TEST CONDITIONS MIN MAX Peak output voltage during turnoff of 100 mA into 40 nH B port See Figure 1 Minimum output voltage during turnoff of 100 mA into 40 nH B port See Figure 1 1.62 V VOLV Minimum output voltage during high-to-low switch B port IOL = –50 mA 0.3 V POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 UNIT VOHP VOHV V 9 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 PARAMETER MEASUREMENT INFORMATION 2.1 V From Output Under Test 40 nH 9Ω 30 pF Figure 1. Load Circuit for VOHP and VOHV 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN74FB2033K 8-BIT TTL/BTL REGISTERED TRANSCEIVER SCBS472G – MAY 1994 – REVISED SEPTEMBER 2001 PARAMETER MEASUREMENT INFORMATION 2.1 V 9Ω 7V 500 Ω From Output Under Test CL = 50 pF (see Note A) S1 Open Test Point From Output Under Test CL = 30 pF (see Note A) 500 Ω LOAD CIRCUIT FOR A OUTPUTS S1 Open 7V Open LOAD CIRCUIT FOR B OUTPUTS 3V Timing Input TEST tPLH/tPHL tPLZ/tPZL tPHZ/tPZH tw 1.5 V 3V 0V Input tsu 1.5 V 0V th VOLTAGE WAVEFORMS PULSE DURATION 3V Data Input 1.5 V 1.5 V 1.5 V 0V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 3V Output Control 1.5 V 1.5 V 0V 3V Input 1.5 V tPZL 1.5 V 0V tPHL tPLH 1.55 V 1.55 V VOH Output VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES (A TO B) 2.1 V Input 1.55 V 1.55 V tPLZ Output Waveform 1 S1 at 7 V (see Note B) 3.5 V 1.5 V VOL + 0.3 V VOL tPZH tPHZ Output Waveform 2 S1 at Open (see Note B) VOH VOH – 0.3 V 1.5 V ≈0V VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES (A PORT) 1V tPHL tPLH VOHP VOHV VOH Output 1.5 V 1.5 V VOLV VOL VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES (B TO A) 2.1 V 1V 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: TTL inputs: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns; BTL inputs: 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. Figure 2. Load Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 11 PACKAGE OPTION ADDENDUM www.ti.com 28-Sep-2007 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty SN74FB2033KRC ACTIVE QFP RC 52 96 TBD CU SNPB Level-2-240C-1 YEAR SN74FB2033KRCR ACTIVE QFP RC 52 500 TBD CU SNPB Level-2-240C-1 YEAR 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), 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. 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 MQFP003 – OCTOBER 1994 RC (S-PQFP-G52) PLASTIC QUAD FLATPACK 0,38 0,22 0,65 39 0,13 M 27 40 26 52 14 0,16 NOM 1 13 7,80 TYP 10,20 SQ 9,80 13,45 SQ 12,95 Gage Plane 0,25 0,05 MIN 2,20 1,80 0°– 7° 1,03 0,73 Seating Plane 2,45 MAX 0,10 4040151 / B 03/95 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. 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