Revised March 2000 74VCXH162374 Low Voltage 16-Bit D-Type Flip-Flop with Bushold and 26Ω Series Resistors in Outputs General Description Features The VCXH162374 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 VCXH162374 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 74VCXH162374 is also designed with 26Ω series resistors in the outputs. This design reduces line noise in applications such as memory address drivers, clock drivers and bus transceivers/transmitters. The 74VCXH162374 is designed for low voltage (1.65V to 3.6V) VCC applications with output compatibility up to 3.6V. The 74VCXH162374 is fabricated with an advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation. ■ 1.65V–3.6V VCC supply operation ■ 3.6V tolerant control inputs and outputs ■ Bushold data inputs eliminates the need for external pull-up/pull-down resistors ■ 26Ω series resistors in outputs ■ tPD (CLK to O n) 3.4 ns max for 3.0V to 3.6V VCC 4.8 ns max for 2.3V to 2.7V VCC 9.6 ns max for 1.65V to 1.95V VCC ■ Static Drive (IOH/IOL) ±12 mA @ 3.0V VCC ±8 mA @ 2.3V VCC ±3 mA @ 1.65V VCC ■ Uses patented noise/EMI reduction circuitry ■ Latch-up performance exceeds 300 mA ■ ESD performance: Human body model > 2000V Machine model > 200V Ordering Code: Order Number Package Package Descriptions Number 74VCXH162374MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide [TUBES] 74VCXH162374MTX (Note 1) MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide [TAPE and REEL] Note 1: Use this Order Number to receive devices in Tape and Reel. Logic Symbol Pin Descriptions Pin Names © 2000 Fairchild Semiconductor Corporation DS500226 Description OEn Output Enable Input (Active LOW) CPn Clock Pulse Input I0–I15 Bushold Inputs O0–O15 Outputs www.fairchildsemi.com 74VCXH162374 Low Voltage 16-Bit D-Type Flip-Flop with Bushold January 2000 74VCXH162374 Connection Diagram Truth Tables Inputs Outputs OE1 I0–I7 O0–O7 L H H L L L L L X O0 X H X Z CP1 Inputs Outputs OE2 I8–I15 O8–O15 L H H L L L L L X O0 X H X Z CP2 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 Functional Description 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 74VCXH162374 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 flip- 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. www.fairchildsemi.com 2 Recommended Operating Conditions (Note 4) −0.5V to +4.6V Supply Voltage (VCC) DC Input Voltage (VI) Power Supply −0.5V to 4.6V OEn, CPn Operating −0.5V to VCC to 0.5V I0 – I15 1.65V to 3.6V Data Retention Only Output Voltage (VO) 1.2V to 3.6V −0.3V to VCC Input Voltage −0.5V to +4.6V Outputs 3-STATED Outputs Active (Note 3) Output Voltage (VO) −0.5V to VCC +0.5V Output in Active States DC Input Diode Current (IIK) 0V to VCC Output in “OFF” State VI < 0V −50 mA 0.0V to 3.6V Output Current in IOH/IOL VCC = 3.0V to 3.6V ±12 mA VO < 0V −50 mA VCC = 2.3V to 2.7V ±8 mA VO > VCC +50 mA VCC = 1.65V to 2.3V DC Output Diode Current (IOK) DC Output Source/Sink Current ±50 mA (IOH/IOL) −40°C to +85°C Minimum Input Edge Rate (∆t/∆V) VIN = 0.8V to 2.0V, VCC = 3.0V DC VCC or GND Current per ±100 mA Supply Pin (ICC or GND) Storage Temperature Range (TSTG) ±3 mA Free Air Operating Temperature (TA) 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. −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 (2.7V < VCC ≤ 3.6V) Symbol Parameter Conditions VCC (V) Min 2.0 VIH HIGH Level Input Voltage 2.7 − 3.6 VIL LOW Level Input Voltage 2.7 − 3.6 VOH HIGH Level Output Voltage VOL II II(HOLD) II(OD) IOH = −100 µA LOW Level Output Voltage Input Leakage Current Bushold Input Minimum 0.8 V V 2.7 − 3.6 VCC − 0.2 V 2.7 2.2 V IOH = −8 mA 3.0 2.4 V IOH = −12 mA 3.0 2.2 V IOL = 100 µA 2.7 − 3.6 0.2 V IOL = 6 mA 2.7 0.4 V IOL = 8 mA 3.0 0.55 V IOL = 12 mA 3.0 0.8 V Control Pins 0 ≤ VI ≤ 3.6V 2.7 − 3.6 ±5.0 µA Data Pins VI = V CC or GND 2.7 − 3.6 ±5.0 µA VIN = 0.8V 3.0 75 Drive Hold Current VIN = 2.0V 3.0 −75 Bushold Input Over-Drive (Note 5) 3.6 450 3.6 −450 Current to Change State (Note 6) 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V IOFF Power-OFF Leakage Current 0 ≤ (VO) ≤ 3.6V ICC Quiescent Supply Current VI = V IH or VIL Increase in ICC per Input Units IOH = −6 mA IOZ ∆ICC Max µA µA 2.7 − 3.6 ±10 µA 0 10 µA VI = V CC or GND 2.7 − 3.6 20 µA VCC ≤ (VO) ≤ 3.6V (Note 7) 2.7 − 3.6 ±20 µA VIH = VCC −0.6V 2.7 − 3.6 750 µA Note 5: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 6: An external driver must sink at least the specified current to switch from HIGH-to-LOW. Note 7: Outputs disabled or 3-STATE only. 3 www.fairchildsemi.com 74VCXH162374 Absolute Maximum Ratings(Note 2) 74VCXH162374 DC Electrical Characteristics (2.3V ≤ VCC ≤ 2.7V) Symbol Parameter Conditions V CC (V) Min 1.6 VIH HIGH Level Input Voltage 2.3 − 2.7 VIL LOW Level Input Voltage 2.3 − 2.7 VOH HIGH Level Output Voltage VOL IOH = −100 µA LOW Level Output Voltage Control Pins V V VCC − 0.2 V 2.3 2.0 V IOH = −6 mA 2.3 1.8 V IOH = −8 mA 2.3 1.7 IOL = 100 µA 2.3 − 2.7 0.2 V IOL = 6 mA 2.3 0.4 V IOL = 8 mA 2.3 0.6 V 0 ≤ VI ≤ 3.6V 2.3 − 2.7 ±5.0 µA VI = VCC or GND 2.3 − 2.7 ±5.0 µA II(HOLD) Bushold Input Minimum VIN = 0.7V 2.3 45 Drive Hold Current VIN = 1.6V 2.3 −45 IOZ 0.7 2.3 − 2.7 Input Leakage Current II(OD) Units IOH = −4 mA II Data Pins Max Bushold Input Over-Drive (Note 8) 2.7 300 Current to Change State (Note 9) 2.7 −300 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V VI = VIH or VIL 2.3 − 2.7 V µA µA ±10 µA IOFF Power-OFF Leakage Current 0 ≤ (VO) ≤ 3.6V 0 10 µA ICC Quiescent Supply Current VI = VCC or GND 2.3 − 2.7 20 µA VCC ≤ (VO) ≤ 3.6V (Note 10) 2.3 − 2.7 ±20 µA Max Units Note 8: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 9: An external driver must sink at least the specified current to switch from HIGH-to-LOW. Note 10: Outputs disabled or 3-STATE only. DC Electrical Characteristics (1.65V ≤ VCC < 2.3V) Symbol Parameter Conditions VCC (V) Min 0.65 × VCC VIH HIGH Level Input Voltage 1.65 - 2.3 VIL LOW Level Input Voltage 1.65 - 2.3 VOH HIGH Level Output Voltage IOH = −100 µA VOL LOW Level Output Voltage II(HOLD) II(OD) IOZ Input Leakage Current V 1.65 - 2.3 VCC − 0.2 IOH = −3 mA 1.65 1.25 IOL = 100 µA 1.65 - 2.3 0.2 V 1.65 0.3 V IOL = 3 mA II V 0.35 × VCC V V Control Pins 0 ≤ VI ≤ 3.6V 1.65 - 2.3 ±5.0 µA Data Pins VI = VCC or GND 1.65 - 2.3 ±5.0 µA Bushold Input Minimum VIN = 0.57V 1.65 25 Drive Hold Current VIN = 1.07V 1.65 −25 Bushold Input Over-Drive (Note 11) 1.95 200 Current to Change State (Note 12) 1.95 −200 3-STATE Output Leakage 0 ≤ VO ≤ 3.6V VI = VIH or VIL µA µA 1.65 - 2.3 ±10 µA IOFF Power-OFF Leakage Current 0 ≤ (VO) ≤ 3.6V 0 10 µA ICC Quiescent Supply Current VI = VCC or GND 1.65 - 2.3 20 µA VCC ≤ (VO) ≤ 3.6V (Note 13) 1.65 - 2.3 ±20 µA Note 11: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 12: An external driver must sink at least the specified current to switch from HIGH-to-LOW. Note 13: Outputs disabled or 3-STATE only. www.fairchildsemi.com 4 (Note 14) TA = −40°C to +85°C, CL = 30 pF, RL = 500Ω Symbol Parameter VCC = 3.3V ± 0.3V Min VCC = 2.5V ± 0.2V Max Min Max Min Units Max fMAX Maximum Clock Frequency 250 tPHL, tPLH Prop Delay CP to On 0.8 3.4 1.0 4.8 1.5 9.6 ns tPZL, tPZH Output Enable Time 0.8 3.9 1.0 5.4 1.5 9.8 ns tPLZ, tPHZ Output Disable Time 0.8 4.0 1.0 4.4 1.5 7.9 tS Setup Time 1.5 tH Hold Time 1.0 1.0 1.0 ns tW Pulse Width 1.5 1.5 4.0 ns tOSHL Output to Output Skew (Note 15) tOSLH 200 VCC = 1.8V ± 0.15V 100 1.5 0.5 MHz 2.5 0.5 ns ns 0.75 ns Note 14: For CL = 50PF, add approximately 300 ps to the AC maximum specification. Note 15: Skew is defined as the absolute value of the difference 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). Dynamic Switching Characteristics Symbol VOLP VOLV VOHV Parameter Quiet Output Dynamic Peak VOL Quiet Output Dynamic Valley VOL Quiet Output Dynamic Valley VOH Conditions CL = 30 pF, VIH = VCC, VIL = 0V CL = 30 pF, VIH = VCC, VIL = 0V CL = 30 pF, VIH = VCC, VIL = 0V V CC (V) TA = +25°C Typical 1.8 0.15 2.5 0.25 3.3 0.35 1.8 −0.15 2.5 −0.25 3.3 −0.35 1.8 1.55 2.5 2.05 3.3 2.65 Units V V V Capacitance Symbol Parameter Conditions TA = +25°C Typical Units CIN Input Capacitance VCC = 1.8V, 2.5V or 3.3V, VI = 0V or VCC 6 pF COUT Output Capacitance VI = 0V or VCC, VCC = 1.8V, 2.5V or 3.3V 7 pF CPD Power Dissipation Capacitance 20 pF VI = 0V or VCC, f = 10 MHz, VCC = 1.8V, 2.5V or 3.3V 5 www.fairchildsemi.com 74VCXH162374 AC Electrical Characteristics 74VCXH162374 AC Loading and Waveforms TEST SWITCH tPLH, tPHL Open tPZL, tPLZ 6V at VCC = 3.3 ± 0.3V; VCC x 2 at VCC = 2.5 ± 0.2V; 1.8V ± 0.15V tPZH, tPHZ GND FIGURE 1. AC Test Circuit FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage Logic FIGURE 2. Waveform for Inverting and Non-Inverting Functions FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage Logic FIGURE 6. Setup Time, Hold Time and Recovery Time for Low Voltage Logic FIGURE 5. Propagation Delay, Pulse Width and tREC Waveforms Symbol VCC 3.3V ± 0.3V 2.5V ± 0.2V 1.8V ± 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 www.fairchildsemi.com 6 74VCXH162374 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 Body Width 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