Revised February 2002 74ALVCH16374 Low Voltage 16-Bit D-Type Flip-Flop with Bushold General Description Features The ALVCH16374 contains sixteen non-inverting D-type flip-flops with 3-STATE outputs and is intended for bus oriented applications. The device is byte controlled. A buffered clock (CP) and output enable (OE) are common to each byte and can be shorted together for full 16-bit operation. The ALVCH16374 data inputs include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level. The 74ALVCH16374 is designed for low voltage (1.65V to 3.6V) VCC applications with output compatibility up to 3.6V. The 74ALVCH16374 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation. ■ 1.65V to 3.6V VCC supply operation ■ 3.6V tolerant control inputs and outputs ■ Bushold on data inputs eliminates the need for external pull-up/pull-down resistors ■ tPD 4.2 ns max for 3.0V to 3.6V VCC 5.3 ns max for 2.3V to 2.7V VCC 7.8 ns max for 1.65V to 1.95V VCC ■ Uses patented noise/EMI reduction circuitry ■ Latch-up conforms to JEDEC JED78 ■ ESD performance: Human body model > 2000V Machine model > 200V Ordering Code: Order Number 74ALVCH16374T (Note 1) Package Number Package Descriptions MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Note 1: Devices also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbol © 2002 Fairchild Semiconductor Corporation DS500627 www.fairchildsemi.com 74ALVCH16374 Low Voltage 16-Bit D-Type Flip-Flop with Bushold September 2001 74ALVCH16374 Connection Diagrams Pin Descriptions Pin Assignment for TSSOP Pin Names Description OEn Output Enable Input (Active LOW) CPn Clock Pulse Input I0–I15 Bushold Inputs O0–O15 Outputs NC No Connect FBGA Pin Assignments 1 2 3 4 5 6 A O0 NC OE1 CP1 NC I0 B O2 O1 NC NC I1 I2 C O4 O3 VCC VCC I3 I4 D O6 O5 GND GND I5 I6 E O8 O7 GND GND I7 I8 F O10 O9 GND GND I9 I10 I12 G O12 O11 VCC VCC I11 H O14 O13 NC NC I13 I14 J O15 NC OE2 CP2 NC I15 Truth Tables Inputs CP1 Pin Assignment for FBGA Outputs OE1 I0–I7 O0–O7 L H H L L L L L X O0 X H X Z Inputs CP2 (Top Thru View) Outputs OE2 I8–I15 O8–O15 L H H L L L L L X O0 X H X Z H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial (HIGH or LOW, control inputs may not float) Z = High Impedance O0 = Previous O0 before HIGH-to-LOW of CP www.fairchildsemi.com 2 flip-flop will store the state of their individual I inputs that meet the setup and hold time requirements on the LOW-to-HIGH Clock (CPn) transition. With the Output Enable (OEn) LOW, the contents of the flip-flops are available at the outputs. When OEn is HIGH, the outputs go to the high impedance state. Operations of the OEn input does not affect the state of the flip-flops. The 74ALVCH16374 consists of sixteen edge-triggered flip-flops with individual D-type inputs and 3-STATE true outputs. The device is byte controlled with each byte functioning identically, but independent of the other. The control pins can be shorted together to obtain full 16-bit operation. Each clock has a buffered clock and buffered Output Enable common to all flip-flops within that byte. The description which follows applies to each byte. Each Logic Diagram Byte 1 (0:7) Byte 2 (8:15) 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 74ALVCH16374 Functional Description 74ALVCH16374 Absolute Maximum Ratings(Note 2) Recommended Operating Conditions (Note 4) −0.5V to +4.6V Supply Voltage (VCC) −0.5V to 4.6V DC Input Voltage (VI) Output Voltage (VO) (Note 3) Power Supply −0.5V to VCC +0.5V Operating DC Input Diode Current (IIK) VI < 0V −50 mA 0V to VCC Output Voltage (VO) DC Output Diode Current (IOK) 0V to VCC Free Air Operating Temperature (TA) VO < 0V −50 mA −40°C to +85°C Minimum Input Edge Rate (∆t/∆V) VIN = 0.8V to 2.0V, VCC = 3.0V DC Output Source/Sink Current ±50 mA (IOH/IOL) ±100 mA Supply Pin (ICC or GND) 10 ns/V Note 2: 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. DC VCC or GND Current per Storage Temperature Range (TSTG) 1.65V to 3.6V Input Voltage (VI) −65°C to +150°C Note 3: IO Absolute Maximum Rating must be observed. Note 4: Floating or unused control inputs must be held HIGH or LOW. DC Electrical Characteristics Symbol VIH VIL VOH VOL Parameter Conditions HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage LOW Level Output Voltage VCC (V) Min 1.65 - 1.95 0.65 x VCC 2.3 - 2.7 1.7 2.7 - 3.6 2.0 Max V 1.65 - 1.95 0.35 x VCC 2.3 - 2.7 0.7 2.7 - 3.6 0.8 IOH = 100 µA 1.65 - 3.6 IOH = −4 mA 1.65 1.2 IOH = −6 mA 2.3 2.0 IOH = −12 mA 2.3 1.7 2.7 2.2 V VCC - 0.2 V 3.0 2.4 IOH = −24 mA 3.0 2 IOL = 100 µA 1.65 - 3.6 0.2 1.65 0.45 IOL = 6 mA 2.3 0.4 IOL = 12 mA 2.3 0.7 2.7 0.4 IOL = 24 mA 3.0 0.55 IOL = 4 mA Units II Input Leakage Current 0 ≤ VI ≤ 3.6V 3.6 II(HOLD) Bushold Input Maximum VIN = 0.58V 1.65 25 ±5.0 Drive Hold Current VIN = 1.07V 1.65 −25 VIN = 0.7V 2.3 45 VIN = 1.7V 2.3 −45 VIN = 0.8V 3.0 75 −75 V µA µA VIN = 2.0V 3.0 0 < VO ≤ 3.6V 3.6 ±500 IOZ 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V 3.6 ±10 µA ICC Quiescent Supply Current VI = VCC or GND, IO = 0 3.6 40 µA ∆ICC Increase in ICC per Input VIH = VCC − 0.6V 3 - 3.6 750 µA www.fairchildsemi.com 4 TA = −40°C to +85°C, RL = 500Ω Symbol CL = 50 pF Parameter VCC = 3.3V ± 0.3V Min Max CL = 30 pF VCC = 2.7V Min VCC = 2.5V ± 0.2V Max 150 Min 150 VCC = 1.8V ± 0.15V Max Min Units Max fCLOCK Clock Frequency 150 tW Pulse Width 3.3 3.3 3.3 4.0 100 MHz ns tS Setup Time 1.9 2.2 2.1 2.5 ns tH Hold Time 0.5 0.5 0.6 1.0 ns fMAX Maximum Clock Frequency 150 150 150 100 MHz tPHL, tPLH Propagation Delay 1.0 4.2 4.9 1.0 5.3 1.5 7.8 ns tPZL, tPZH Output Enable Time 1.0 4.8 5.9 1.0 6.2 1.5 9.2 ns tPLZ, tPHZ Output Disable Time 1.0 4.3 4.7 1.0 5.3 1.5 6.8 ns Capacitance Symbol CIN Parameter Input Capacitance COUT Output Capacitance CPD Power Dissipation Capacitance Conditions TA = +25°C Units VCC Typical Control VI = 0V or VCC 3.3 3 Data VI = 0V or VCC 3.3 6 VI = 0V or VCC 3.3 7 Outputs Enabled f = 10 MHz, CL = 50 pF 3.3 30 2.5 31 Outputs Disabled f = 10 MHz, CL = 50 pF 3.3 18 2.5 16 5 pF pF pF www.fairchildsemi.com 74ALVCH16374 AC Electrical Characteristics 74ALVCH16374 AC Loading and Waveforms TABLE 1. Values for Figure 1 TEST SWITCH tPLH, tPHL Open tPZL, tPLZ VL tPZH, tPHZ GND FIGURE 1. AC Test Circuit TABLE 2. Variable Matrix (Input Characteristics: f = 1MHz; tr = tf = 2ns; Z0 = 50Ω) Symbol VCC 3.3V ± 0.3V 2.7V 2.5V ± 0.2V 1.8V ± 0.15V Vmi 1.5V 1.5V VCC/2 VCC/2 Vmo 1.5V 1.5V VCC/2 VCC/2 VX VOL + 0.3V VOL + 0.3V VOL + 0.15V VOL + 0.15V VY VOH − 0.3V VOH − 0.3V VOH − 0.15V VOH − 0.15V VL 6V 6V VCC*2 VCC*2 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 www.fairchildsemi.com FIGURE 6. Setup Time, Hold Time and Recovery Time for Low Voltage Logic 6 74ALVCH16374 Low Voltage 16-Bit D-Type Flip-Flop with Bushold Physical Dimensions inches (millimeters) unless otherwise noted 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: 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 7 www.fairchildsemi.com