Revised September 2001 74VCX32500 Low Voltage 36-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs General Description Features The VCX32500 is an 36-bit universal bus transceiver which combines D-type latches and D-type flip-flops to allow data flow in transparent, latched, and clocked modes. ■ 1.65V–3.6V VCC supply operation Data flow in each direction is controlled by output-enable (OEAB and OEBA), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is HIGH. When LEAB is LOW, the A data is latched if CLKAB is held at a HIGH or LOW logic level. If LEAB is LOW, the A bus data is stored in the latch/flip-flop on the HIGH-to-LOW transition of CLKAB. When OEAB is HIGH, the outputs are active. When OEAB is LOW, the outputs are in a highimpedance state. Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, and CLKBA. The output enables are complementary (OEAB is active HIGH and OEBA is active LOW). The VCX32500 is designed for low voltage (1.65V to 3.6V) VCC applications with I/O capability up to 3.6V. The 74VCX32500 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation. ■ 3.6V tolerant inputs and outputs ■ tPD (A to B, B to A) 2.9 ns max for 3.0V to 3.6V VCC 3.5 ns max for 2.3V to 2.7V VCC 7.0 ns max for 1.65V to 1.95V VCC ■ Power-down high impedance inputs and outputs ■ Supports live insertion/withdrawal (Note 1) ■ Static Drive (IOH/IOL) ±24 mA @ 3.0V VCC ±18 mA @ 2.3V VCC ±6 mA @ 1.65V VCC ■ Uses patented noise/EMI reduction circuitry ■ Latchup performance exceeds 300 mA ■ ESD performance: Human body model > 2000V Machine model >200V ■ Packaged in plastic Fine-Pitch Ball Grid Array (FBGA) Note 1: To ensure the high-impedance state during power up or power down, OEBA should be tied to VCC through a pull-up resistor and OEAB should be tied to GND through a pull-down resistors; the minimum value of the resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number 74VCX32500GX (Note 2) Package Number BGA114A Package Description 114-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide [Tape and Reel] Note 2: BGA package available in Tape and Reel only. © 2001 Fairchild Semiconductor Corporation DS500403 www.fairchildsemi.com 74VCX32500 Low Voltage 36-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs March 2001 74VCX32500 Connection Diagram FBGA Pin Assignments (Top Thru View) Pin Descriptions Pin Names 1 2 A 1A2 1A1 B 1A4 1A3 C 1A6 1A5 D 1A8 E 1A10 3 4 5 6 LEAB1 CLKAB1 1B1 1B2 OEAB1 GND 1B3 1B4 GND GND 1B5 1B6 1A7 VCC VCC 1B7 1B8 1A9 GND GND 1B9 1B10 F 1A12 1A11 GND GND 1B11 1B12 G 1A14 1A13 VCC VCC 1B13 1B14 H 1A15 1A16 GND GND 1B16 1B15 J 1A17 1A18 1B18 1B17 K NC L 2A2 2A1 M 2A4 N 2A6 P OEBA1 CLKBA1 LEAB2 LEBA1 GND CLKAB2 NC OEAB2 GND 2B1 2B2 2A3 GND GND 2B3 2B4 2A5 VCC VCC 2B5 2B6 2A8 2A7 GND GND 2B7 2B8 R 2A10 2A9 GND GND 2B9 2B10 T 2A12 2A11 VCC VCC 2B11 2B12 U 2A14 2A13 GND GND 2B13 2B14 V 2A15 2A16 OEBA2 CLKBA2 2B16 2B15 W 2A17 2A18 LEBA2 2B18 2B17 GND Function Table (Note 3) Inputs Description OEABn Output Enable Input for A to B Direction (Active HIGH) OEBAn Output Enable Input for B to A Direction (Active LOW) Outputs OEABn LEABn CLKABn An Bn L X X X Z H H X L L LEABn, LEBAn Latch Enable Inputs H H X H H CLKABn, CLKBAn Clock Inputs H L ↓ L L 1A1–1A18 2A1–2A18 Side A Inputs or 3-STATE Outputs 1B1–1B18 2B1–2B18 Side B Inputs or 3-STATE Outputs H L ↓ H H H L H X B0 (Note 4) H L L X B0 (Note 5) H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial (HIGH or LOW, inputs may not float) Z = High Impedance Note 3: A-to-B data flow is shown; B-to-A flow is similar but uses OEBA, LEBA and CLKBA. OEBA is active LOW. Note 4: Output level before the indicated steady-state input conditions were established. Note 5: Output level before the indicated steady-state input conditions were established, provided that CLKAB was LOW before LEAB went LOW. www.fairchildsemi.com 2 74VCX32500 Logic Diagrams 3 www.fairchildsemi.com 74VCX32500 Absolute Maximum Ratings(Note 6) Supply Voltage (VCC ) −0.5V to +4.6V DC Input Voltage (VI) −0.5V to +4.6V Recommended Operating Conditions (Note 8) Power Supply Output Voltage (VO) Operating −0.5V to +4.6V Outputs 3-STATE Outputs Active (Note 7) DC Input Diode Current (IIK) VI < 0V −0.5 to VCC + 0.5V −50 mA Output Voltage (VO) Output in Active States VO < 0V −50 mA VO > VCC +50 mA 0.0V to 3.6V Output Current in IOH/IOL ±50 mA VCC = 3.0V to 3.6V ±24 mA VCC = 2.3V to 2.7V ±18 mA VCC = 1.65V to 2.3V DC VCC or Ground Current per Storage Temperature Range (TSTG) 0V to VCC Output in 3-STATE DC Output Source/Sink Current Supply Pin (ICC or Ground) 1.2V to 3.6V −0.3V to 3.6V Input Voltage DC Output Diode Current (IOK) (IOH/IOL) 1.65V to 3.6V Data Retention Only ±100 mA ±6 mA Free Air Operating Temperature (TA) −65°C to +150 °C −40°C to +85°C Minimum Input Edge Rate (∆t/∆V) VIN = 0.8V to 2.0V, VCC = 3.0V 10 ns/V Note 6: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The Recommended Operating Conditions tables will define the conditions for actual device operation. Note 7: IO Absolute Maximum Rating must be observed. Note 8: Floating or unused pin (inputs or I/O's) must be held HIGH or LOW. DC Electrical Characteristics (2.7V < VCC ≤ 3.6V) Symbol Parameter Conditions VCC (V) VIH HIGH Level Input Voltage 2.7–3.6 VIL LOW Level Input Voltage 2.7–3.6 VOH HIGH Level Output Voltage VOL LOW Level Output Voltage Min Max 2.0 V 0.8 IOH = −100 µA 2.7–3.6 VCC − 0.2 IOH = −12 mA 2.7 2.2 IOH = −18 mA 3.0 2.4 IOH = −24 mA 3.0 2.2 IOL = 100 µA 2.7–3.6 0.2 IOL = 12 mA 2.7 0.4 IOL = 18 mA 3.0 0.4 IOL = 24 mA II Input Leakage Current 0V ≤ VI ≤ 3.6V IOZ 3-STATE Output Leakage 0V ≤ VO ≤ 3.6V VI = VIH or VIL 3.0 0.55 ±5.0 µA 2.7–3.6 ±10 µA Power Off Leakage Current 0V ≤ (VI, VO) ≤ 3.6V 0 10 Quiescent Supply Current VI = VCC or GND 2.7–3.6 40 VCC ≤ (VI, VO) ≤ 3.6V (Note 9) 2.7–3.6 ±40 ∆ICC Increase in ICC per Input VIH = VCC − 0.6V 2.7–3.6 750 4 V 2.7–3.6 ICC www.fairchildsemi.com V V IOFF Note 9: Outputs disabled or 3-STATE only. Units µA µA µA Symbol Parameter Conditions VCC VIH HIGH Level Input Voltage 2.3–2.7 VIL LOW Level Input Voltage 2.3–2.7 VOH HIGH Level Output Voltage VOL LOW Level Output Voltage IOH = −100 µA Min (V) Max Units 0.7 V 1.6 2.3–2.7 VCC − 0.2 IOH = −6 mA 2.3 2.0 IOH = −12 mA 2.3 1.8 IOH = −18 mA 2.3 1.7 V V IOL = 100 µA 2.3–2.7 0.2 IOL = 12 mA 2.3 0.4 IOL = 18 mA 2.3 0.6 2.3–2.7 ±5.0 µA 2.3–2.7 ±10 µA µA II Input Leakage Current 0 ≤ VI ≤ 3.6V IOZ 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V VI = V IH or VIL IOFF Power Off Leakage Current 0 ≤ (VI, VO) ≤ 3.6V 0 10 ICC Quiescent Supply Current VI = V CC or GND 2.3–2.7 40 VCC ≤ (VI, VO) ≤ 3.6V (Note 10) 2.3–2.7 ±40 V µA Note 10: Outputs disabled or 3-STATE only. DC Electrical Characteristics (1.65V ≤ VCC < 2.3V) Symbol Parameter Conditions VCC (V) VIH HIGH Level Input Voltage 1.65 - 2.3 VIL LOW Level Input Voltage 1.65 - 2.3 VOH HIGH Level Output Voltage VOL LOW Level Output Voltage IOH = −100 µA Min Max 0.65 × VCC V 0.35 × VCC 1.65 - 2.3 VCC − 0.2 IOH = −6 mA 1.65 1.25 IOL = 100 µA 1.65 - 2.3 0.2 1.65 0.3 IOL = 6 mA V V II Input Leakage Current 0 ≤ VI ≤ 3.6V IOZ 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V IOFF Power Off Leakage Current 0 ≤ (VI, VO) ≤ 3.6V ICC Quiescent Supply Current VI = V CC or GND VCC ≤ (VI, VO) ≤ 3.6V (Note 11) 1.65 - 2.3 ±40 VI = V IH or VIL Units V 1.65 - 2.3 ±5.0 µA 1.65 - 2.3 ±10 µA 0 10 µA 1.65 - 2.3 40 µA Note 11: Outputs disabled or 3-STATE only. 5 www.fairchildsemi.com 74VCX32500 DC Electrical Characteristics (2.3V ≤ VCC ≤ 2.7V) 74VCX32500 AC Electrical Characteristics (Note 12) TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω Symbol Parameter VCC = 3.3V ± 0.3V Min fMAX Maximum Clock Frequency tPHL Propagation Delay tPLH Bus to Bus tPHL Propagation Delay tPLH Clock to Bus tPHL Propagation Delay tPLH LE to Bus tPZL Output Enable Time tPZH tPLZ Output Disable Time tPHZ Max 250 VCC = 2.5 ± 0.2V VCC = 1.8 ± 0.15V Min Min Max 200 Units Max 100 MHz 0.6 2.9 0.8 3.5 1.5 7.0 ns 0.6 4.2 0.8 5.3 1.5 9.8 ns 0.6 3.8 0.8 4.9 1.5 9.8 ns 0.6 3.8 0.8 4.9 1.5 9.8 ns 0.6 3.7 0.8 4.2 1.5 7.6 ns tS Setup Time 1.5 1.5 2.5 ns tH Hold Time 1.0 1.0 1.0 ns tW Pulse Width 1.5 1.5 4.0 ns Note 12: For CL = 50pF, add approximately 300ps to the AC maximum specification. Dynamic Switching Characteristics Symbol VOLP Parameter Quiet Output Dynamic Conditions CL = 30 pF, VIH = VCC, VIL = 0V Peak VOL VOLV Quiet Output Dynamic CL = 30 pF, VIH = VCC, VIL = 0V Valley VOL VOHV Quiet Output Dynamic CL = 30 pF, VIH = VCC, VIL = 0V Valley VOH VCC TA = +25°C (V) Typical 1.8 2.5 3.3 0.25 0.6 0.8 V 1.8 2.5 3.3 −0.25 −0.6 −0.8 V 1.8 2.5 3.3 1.5 1.9 2.2 V TA = +25°C Units 6 pF 7 pF 20 pF Units Capacitance Symbol CIN Parameter Input Capacitance Conditions VI = 0V or VCC VCC = 1.8V, 2.5V, or 3.3V, CI/O Output Capacitance VI = 0V, or VCC, VCC = 1.8V, 2.5V or 3.3V CPD Power Dissipation Capacitance VI = 0V or VCC, f = 10 MHz VCC = 1.8V, 2.5V or 3.3V www.fairchildsemi.com 6 74VCX32500 AC Loading and Waveforms FIGURE 1. AC Test Circuit TEST SWITCH tPLH, tPHL Open tPZL, tPLZ 6V at VCC = 3.3 ± 0.3V; VCC x 2 at VCC = 2.5 ± 0.2V; 1.8 ± 0.15V tPZH, tPHZ GND FIGURE 2. Waveform for Inverting and Non-inverting Functions FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage Logic FIGURE 5. Propagation Delay, Pulse Width and trec Waveforms FIGURE 6. Setup Time, Hold Time and Recovery Time for Low Voltage Logic Symbol VCC 3.3V ± 0.3V 2.5V ± 0.2V 1.8 ± 0.15V Vmi 1.5V VCC /2 VCC /2 Vmo 1.5V VCC /2 VCC /2 VX VOL + 0.3V VOL + 0.15V VOL + 0.15V VY VOH − 0.3V VOH − 0.15V VOH − 0.15V 7 www.fairchildsemi.com 74VCX32500 Low Voltage 36-Bit Universal Bus Transceivers with 3.6V Tolerant Inputs and Outputs Physical Dimensions inches (millimeters) unless otherwise noted 114-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA114A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com www.fairchildsemi.com 8