74LCX16374MTDX

Revised April 1999 74LCX16374 Low Voltage 16-Bit D-Type Flip-Flop with 5V Tolerant Inputs and Outputs General Description Features The LCX16374 contains sixteen non-inverting D-type flipflops 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. ■ 5V tolerant inputs and outputs ■ 2.3V–3.6V VCC specifications provided ■ 6.2 ns tPD max (VCC = 3.3V), 20 µA ICC max ■ Power down high impedance inputs and outputs The LCX16374 is designed for low voltage (2.5V or 3.3V) VCC applications with capability of interfacing to a 5V signal environment. ■ Supports live insertion/withdrawal (Note 1) The LCX16374 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. ■ Latch-up performance exceeds 500 mA ■ ±24 mA output drive (VCC = 3.0V) ■ Implements patented noise/EMI reduction circuitry ■ ESD performance: Human body model > 2000V Machine model > 200V Note 1: To ensure the high-impedance state during power up or down, OE should be tied to VCC through a pull-up resistor: the minimum value or the resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number Package Number 74LCX16374MEA MS48A 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300” Wide Package Description 74LCX16374MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Connection Diagram Pin Descriptions Pin Names Description OEn Output Enable Input (Active LOW) CPn Clock Pulse Input I0–I15 Inputs O0–O15 Outputs © 1999 Fairchild Semiconductor Corporation DS012003.prf www.fairchildsemi.com 74LCX16374 Low Voltage 16-Bit D-Type Flip-Flop with 5V Tolerant Inputs and Outputs February 1994 74LCX16374 Functional Description the state of their individual D 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. Operation of the OEn input does not affect the state of the flip-flops. The LCX16374 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 byte 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 flip-flop will store Truth Tables Inputs Outputs   OE1 I0–I7 O0–O7 L H H L L L L L X X H X CP1 Inputs Outputs   OE2 I8–I15 O8–O15 L H H L L L O0 L L X O0 Z X H X Z CP2 H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance O0 = Previous O0 before HIGH-to-LOW of CP Logic Diagrams 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. www.fairchildsemi.com 2 Symbol Parameter Value Conditions VCC Supply Voltage −0.5 to +7.0 VI DC Input Voltage −0.5 to +7.0 VO DC Output Voltage −0.5 to +7.0 Units V V 3-STATE −0.5 to VCC + 0.5 Output in HIGH or LOW State (Note 3) IIK DC Input Diode Current −50 VI < GND IOK DC Output Diode Current −50 VO < GND +50 VO > VCC V mA mA IO DC Output Source/Sink Current ±50 mA ICC DC Supply Current per Supply Pin ±100 mA IGND DC Ground Current per Ground Pin ±100 mA TSTG Storage Temperature −65 to +150 °C Recommended Operating Conditions Symbol VCC Parameter Supply Voltage VI Input Voltage VO Output Voltage IOH/IOL (Note 4) Output Current TA Free-Air Operating Temperature ∆t/∆V Input Edge Rate, VIN = 0.8V–2.0V, VCC = 3.0V Min Max Operating 2.0 3.6 Data Retention 1.5 3.6 0 5.5 HIGH or LOW State 0 VCC 3-STATE 0 5.5 VCC = 3.0V − 3.6V ±24 VCC = 2.7V − 3.0V ±12 VCC = 2.3V − 2.7V ±8 Units V V V mA −40 85 °C 0 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. Note 3: IO Absolute Maximum Rating must be observed. Note 4: Unused inputs must be held HIGH or LOW. They may not float. DC Electrical Characteristics Symbol Parameter Conditions VCC (V) VIH VIL VOH VOL HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage LOW Level Output Voltage IOH = −100 µA TA = −40°C to +85°C Min 2.3 − 2.7 1.7 2.7 − 3.6 2.0 V 2.3 − 2.7 0.7 2.7 − 3.6 0.8 2.3 − 3.6 2.3 1.8 IOH = −12 mA 2.7 2.2 IOH = −18 mA 3.0 2.4 IOH = −24 mA 3.0 2.2 IOL = 100 µA 2.3 − 3.6 V 0.2 IOL = 8 mA 2.3 0.6 IOL = 12 mA 2.7 0.4 IOL = 16 mA 3.0 0.4 0.55 IOL = 24 mA 3.0 Input Leakage Current 0 ≤ VI ≤ 5.5V 2.3 − 3.6 ±5.0 IOZ 3-STATE Output Leakage 0 ≤ VO ≤ 5.5V 2.3 − 3.6 ±5.0 0 10 VI = V IH or VIL Power-Off Leakage Current VI or VO = 5.5V 3 V VCC − 0.2 IOH = −8 mA II IOFF Units Max V µA µA µA www.fairchildsemi.com 74LCX16374 Absolute Maximum Ratings(Note 2) 74LCX16374 DC Electrical Characteristics Symbol Parameter (Continued) VCC Conditions (V) ICC ∆ICC Quiescent Supply Current Increase in ICC per Input TA = −40°C to +85°C Min Units Max VI = VCC or GND 2.3 − 3.6 20 3.6V ≤ VI, VO ≤ 5.5V (Note 5) 2.3 − 3.6 ±20 VIH = VCC −0.6V 2.3 − 3.6 500 µA µA Note 5: Outputs disabled or 3-STATE only. AC Electrical Characteristics TA = −40° to +85°C, RL = 500Ω Symbol Parameter VCC = 3.3V ± 0.3V VCC = 2.7V VCC = 2.5V ± 0.2V CL = 50 pF CL = 50 pF CL = 30 pF Min Max Min Max Min Max 6.2 1.5 6.5 1.5 7.4 Units fMAX Maximum Clock Frequency 170 tPHL Propagation Delay 1.5 tPLH CP to On 1.5 6.2 1.5 6.5 1.5 7.4 tPZL Output Enable time 1.5 6.1 1.5 6.3 1.5 7.9 1.5 6.1 1.5 6.3 1.5 7.9 Output Disable Time 1.5 6.0 1.5 6.2 1.5 7.2 1.5 6.0 1.5 6.2 1.5 7.2 tS Setup Time 2.5 2.5 3.0 ns tH Hold Time 1.5 1.5 2.0 ns tW Pulse Width 3.0 3.0 3.5 ns tOSHL Output to Output Skew (Note 6) tPZH tPLZ tPHZ MHz 1.0 tOSLH ns ns ns ns 1.0 Note 6: Skew is defined as the absolute value of the differences between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). Parameter guaranteed by design. Dynamic Switching Characteristics Symbol VOLP VOLV Parameter Quiet Output Dynamic Peak VOL Quiet Output Dynamic Valley VOL Conditions VCC (V) TA = 25°C Units Typical CL = 50 pF, VIH = 3.3V, VIL = 0V 3.3 0.8 CL = 30 pF, VIH = 2.5V, VIL = 0V 2.5 0.6 CL = 50 pF, VIH = 3.3V, VIL = 0V 3.3 −0.8 CL = 30 pF, VIH = 2.5V, VIL = 0V 2.5 0.6 V V Capacitance Typical Units CIN Symbol Input Capacitance Parameter VCC = Open, VI = 0V or VCC 7 pF COUT Output Capacitance VCC = 3.3V, VI = 0V or VCC 8 pF CPD Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, f = 10 MHz 20 pF www.fairchildsemi.com Conditions 4 74LCX16374 AC LOADING and WAVEFORMS Generic for LCX Family FIGURE 1. AC Test Circuit (CL includes probe and jig capacitance) Test Switch tPLH, tPHL Open tPZL, tPLZ 6V at VCC = 3.3 ± 0.3V VCC x 2 at VCC = 2.5 ± 0.2V tPZH,tPHZ GND Waveform for Inverting and Non-Inverting Functions 3-STATE Output High Enable and Disable Times for Logic Propagation Delay. Pulse Width and trec Waveforms Setup Time, Hold Time and Recovery Time for Logic trise and tfall 3-STATE Output Low Enable and Disable Times for Logic FIGURE 2. Waveforms (Input Characteristics; f =1MHz, tR = tF = 3ns) Symbol VCC 3.3V ± 0.3V 2.7V 2.5V ± 0.2V Vmi 1.5V 1.5V VCC/2 Vmo 1.5V 1.5V VCC/2 Vx VOL + 0.3V VOL + 0.3V VOL + 0.15V Vy VOH − 0.3V VOH − 0.3V VOH − 0.15V 5 www.fairchildsemi.com 74LCX16374 Schematic Diagram Generic for LCX Family www.fairchildsemi.com 6 74LCX16374 Physical Dimensions inches (millimeters) unless otherwise noted 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300” Wide Package Number MS48A 7 www.fairchildsemi.com 74LCX16374 Low Voltage 16-Bit D-Type Flip-Flop with 5V 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 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 1. Life support devices or systems are devices or systems device or system whose failure to perform can be reawhich, (a) are intended for surgical implant into the sonably expected to cause the failure of the life support body, or (b) support or sustain life, and (c) whose failure device or system, or to affect its safety or effectiveness. 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 www.fairchildsemi.com user. 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.