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| 74ALVC16373 Low Voltage 16-Bit Transparent Latch with 3.6V Tolerant Inputs and Outputs October 2001 Revised May 2005 74ALVC16373 Low Voltage 16-Bit Transparent Latch with 3.6V Tolerant Inputs and Outputs General Description The ALVC16373 contains sixteen non-inverting latches with 3-STATE outputs and is intended for bus oriented applications. The device is byte controlled. The flip-flops appear to be transparent to the data when the Latch Enable (LE) is HIGH. When LE is LOW, the data that meets the setup time is latched. Data appears on the bus when the Output Enable (OE) is LOW. When OE is HIGH, the outputs are in a high impedance state. The 74ALVC16373 is designed for low voltage (1.1V to 3.6V) VCC applications with I/O compatibility up to 3.6V. The 74ALVC16373 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation. Features s 1.1V to 3.6V VCC supply operation s 3.6V tolerant inputs and outputs s tPD (In to On) 3.5 ns max for 3.0V to 3.6V VCC 3.9 ns max for 2.3V to 2.7V VCC 6.8 ns max for 1.65V to 1.95V VCC s Power-off high impedance inputs and outputs s Support live insertion and withdrawal (Note 1) s Uses patented noise/EMI reduction circuitry s Latchup conforms to JEDEC JED78 s ESD performance: Human body model ! 2000V Machine model ! 200V s Also packaged in plastic Fine-Pitch Ball Grid Array (FBGA) (Preliminary) Note 1: To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number 74ALVC16373GX (Note 2) 74ALVC16373MTD (Note 3) Package Number BGA54A (Preliminary) MTD48 Package Description 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide [TAPE and REEL] 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Note 2: BGA package available in Tape and Reel only. Note 3: Devices also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code. Logic Symbol (c) 2005 Fairchild Semiconductor Corporation DS500687 www.fairchildsemi.com 74ALVC16373 Connection Diagrams Pin Assignment for TSSOP Pin Descriptions Pin Names OEn LEn I0-I15 O0-O15 NC Description Output Enable Input (Active LOW) Latch Enable Input Inputs Outputs No Connect FBGA Pin Assignments 1 A B C D E F G H J O0 O2 O4 O6 O8 O10 O12 O14 O15 2 NC O1 O3 O5 O7 O9 O11 O13 NC 3 OE1 NC VCC GND GND GND VCC NC OE2 4 LE1 NC VCC GND GND GND VCC NC LE2 5 NC I1 I3 I5 I7 I9 I11 I13 NC 6 I0 I2 I4 I6 I8 I10 I12 I14 I15 Truth Tables Inputs LE1 X H Pin Assignment for FBGA H L OE1 H L L L Inputs LE2 X H H L H L X Z O0 Outputs I0-I7 X L H X O0-O7 Z L H O0 Outputs I8-I15 X L H X O8-O15 Z L H O0 OE2 H L L L (Top Thru View) HIGH Voltage Level LOW Voltage Level Immaterial (HIGH or LOW, inputs may not float) High Impedance Previous O0 before HIGH-to-LOW of Latch Enable www.fairchildsemi.com 2 74ALVC16373 Functional Description The 74ALVC16373 contains sixteen edge D-type latches with 3-STATE outputs. The device is byte controlled with each byte functioning identically, but independent of the other. Control pins can be shorted together to obtain full 16-bit operation. The following description applies to each byte. When the Latch Enable (LEn) input is HIGH, data on the In enters the latches. In this condition the latches are transparent, i.e., a latch output will change state each time its I input changes. When LEn is LOW, the latches store information that was present on the I inputs a setup time preceding the HIGH-to-LOW transition on LEn. The 3-STATE outputs are controlled by the Output Enable (OEn) input. When OEn is LOW the standard outputs are in the 2-state mode. When OEn is HIGH, the standard outputs are in the high impedance mode but this does not interfere with entering new data into the latches. Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. 3 www.fairchildsemi.com 74ALVC16373 Absolute Maximum Ratings(Note 4) Supply Voltage (VCC) DC Input Voltage (VI) Output Voltage (VO) (Note 5) DC Input Diode Current (IIK) VI 0V DC Output Diode Current (IOK) VO 0V DC Output Source/Sink Current (IOH/IOL) DC VCC or GND Current per Supply Pin (I CC or GND) Storage Temperature Range (TSTG) 0.5V to 4.6V 0.5V to 4.6V 0.5V to VCC 0.5V 50 mA 50 mA r50 mA r100 mA 65qC to 150qC Recommended Operating Conditions (Note 6) Power Supply Operating Input Voltage (VI) Output Voltage (VO) Free Air Operating Temperature (TA) Minimum Input Edge Rate ('t/'V) VIN 0.8V to 2.0V, VCC 3.0V 10 ns/V Note 4: 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" table will define the conditions for actual device operation. Note 5: IO Absolute Maximum Rating must be observed. Note 6: Floating or unused inputs must be held HIGH or LOW. 1.65V to 3.6V 0V to VCC 0V to VCC 40qC to 85qC DC Electrical Characteristics Symbol VIH Parameter HIGH Level Input Voltage Conditions VCC (V) 1.65 -1.95 2.3 - 2.7 2.7 - 3.6 VIL LOW Level Input Voltage 1.65 -1.95 2.3 - 2.7 2.7 - 3.6 VOH HIGH Level Output Voltage IOH IOH IOH IOH Min 0.65 x VCC 1.7 2.0 0.35 x VCC 0.7 0.8 VCC - 0.2 1.2 2 1.7 2.2 2.4 2 0.2 0.45 0.4 0.7 0.4 0.55 V V V V Max Units 100 PA 4 mA 6 mA 12 mA 1.65 - 3.6 1.65 2.3 2.3 2.7 3.0 IOH VOL LOW Level Output Voltage IOL IOL IOL IOL IOL II IOZ ICC Input Leakage Current 3-STATE Output Leakage Quiescent Supply Current Increase in ICC per Input 24 mA 100 PA 4 mA 6 mA 12mA 24 mA 3.0 1.65 - 3.6 1.65 2.3 2.3 2.7 3 3.6 3.6 0 3.6 3 -3.6 0 d VI d 3.6V 0 d VO d 3.6V VI VIH VCC or GND, IO VCC 0.6V r5.0 r10 40 750 PA PA PA PA 'ICC www.fairchildsemi.com 4 74ALVC16373 AC Electrical Characteristics TA Symbol Parameter V CC Min tPHL, tPLH tPHL, tPLH tPZL, tPZH tPLZ, tPHZ Propagation Delay Bus to Bus Propagation Delay LE to Bus Output Enable Time Output Disable Time 1.3 1.3 1.3 1.3 CL 3.3V r 0.3V Max 3.5 3.5 4.0 4.0 50 pF V CC Min 1.5 1.5 1.5 1.5 2.7V Max 3.9 4.4 5.1 4.3 V CC Min 1.0 1.0 1.0 1.0 40qC to 85qC, RL 500: CL 2.5V r 0.2V Max 3.4 3.9 4.6 3.8 30 pF V CC Min 1.5 1.5 1.5 1.5 1.8V r 0.15V Max 6.8 7.8 9.2 6.8 ns ns ns ns Units Capacitance Symbol CIN COUT CPD Input Capacitance Output Capacitance Power Dissipation Capacitance Parameter VI VI Outputs Enabled f 0V or VCC 0V or VCC 10 MHz, CL 50 pF Conditions TA VCC 3.3 3.3 3.3 2.5 25qC Typical 6 7 20 20 Units pF pF pF 5 www.fairchildsemi.com 74ALVC16373 AC Loading and Waveforms TABLE 1. Values for Figure 1 TEST tPLH, tPHL tPZL, tPLZ tPZH, tPHZ SWITCH Open VL GND FIGURE 1. AC Test Circuit TABLE 2. Variable Matrix (Input Characteristics: f 1MHz; tr tf 2ns; Z0 Symbol Vmi Vmo VX VY VL VCC 3.3V r 0.3V 1.5V 1.5V VOL 0.3V VOH 0.3V 6V 2.7V 1.5V 1.5V VOL 0.3V VOH 0.3V 6V 2.5V r 0.2V VCC/2 VCC/2 VOL 0.15V VOH 0.15V VCC*2 1.8V r 0.15V VCC/2 VCC/2 VOL 0.15V VOH 0.15V VCC*2 50:) FIGURE 2. Waveform for Inverting and Non-Inverting Functions FIGURE 3. 3-STATE Output HIGH Enable and Disable Times for Low Voltage Logic FIGURE 4. 3-STATE Output LOW 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 www.fairchildsemi.com 6 74ALVC16373 Physical Dimensions inches (millimeters) unless otherwise noted 54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205, 5.5mm Wide Package Number BGA54A (Preliminary) 7 www.fairchildsemi.com 74ALVC16373 Low Voltage 16-Bit Transparent Latch with 3.6V Tolerant Inputs and Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Package Number MTD48 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: 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 8 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. www.fairchildsemi.com |
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