Revised March 2005 74LVT2244 • 74LVTH2244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs and 25: Series Resistors in the Outputs General Description Features The LVT2244 and LVTH2244 are octal buffers and line drivers designed to be employed as memory address drivers, clock drivers and bus oriented transmitters or receivers which provides improved PC board density. The equivalent 25:-Series resistors helps reduce output overshoot and undershoot. ■ Input and output interface capability to systems at 5V VCC The LVTH2244 data inputs include bushold, eliminating the need for external pull-up resistors to hold unused inputs. These octal buffers and line drivers are designed for lowvoltage (3.3V) VCC applications, but with the capability to provide a TTL interface to a 5V environment. The LVT2244 and LVTH2244 are fabricated with an advanced BiCMOS technology to achieve high speed operation similar to 5V ABT while maintaining low power dissipation. ■ Equivalent 25:-Series resistors on outputs ■ Bushold data inputs eliminate the need for external pull-up resistors to hold unused inputs (74LVTH2244), also available without bushold feature (74LVT2244). ■ Live insertion/extraction permitted ■ Power Up/Down high impedance provides glitch-free bus loading ■ Outputs source/sink 12 mA/12 mA ■ Latch-up performance exceeds 500 mA ■ ESD performance: Human-body model ! 2000V Machine model ! 200V Charged-device model ! 1000V Ordering Code: Order Number Package Package Description Number 74LVT2244WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LVT2244SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LVT2244MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74LVT2244MTCX_NL (Note 1) MTC20 Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74LVTH2244WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LVTH2244SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LVTH2244MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74LVTH2244MTCX_NL (Note 1) MTC20 Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Pb-Free package per JEDEC J-STD-020B. Note 1: “_NL” indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only. © 2005 Fairchild Semiconductor Corporation DS012170 www.fairchildsemi.com 74LVT2244 • 74LVTH2244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs and 25: Series Resistors in the Outputs July 1999 74LVT2244 • 74LVTH2244 Logic Symbol Pin Descriptions IEEE/IEC Pin Names Description OE1, OE2 3-STATE Output Enable Inputs I0–I7 Inputs O0–O7 Outputs Truth Tables Inputs Outputs (Pins 12, 14, 16, 18) In OE1 L L L L H H H X Z Inputs OE2 Connection Diagram L L L L H H H X Z H HIGH Voltage Level L LOW Voltage Level X Immaterial Z High Impedance www.fairchildsemi.com 2 Outputs (Pins 3, 5, 7, 9) In Symbol Parameter VCC Supply Voltage VI DC Input Voltage VO DC Output Voltage IIK DC Input Diode Current IOK DC Output Diode Current IO DC Output Current Value Conditions 0.5 to 4.6 0.5 to 7.0 0.5 to 7.0 0.5 to 7.0 50 50 ICC DC Supply Current per Supply Pin IGND DC Ground Current per Ground Pin TSTG Storage Temperature Units V V Output in 3-STATE V Output in HIGH or LOW State (Note 3) V VI GND mA VO GND mA 64 VO ! VCC Output at HIGH State 128 VO ! VCC Output at LOW State mA r64 r128 65 to 150 mA mA qC Recommended Operating Conditions Symbol Parameter Min Max 2.7 3.6 V 0 5.5 V VCC Supply Voltage VI Input Voltage IOH HIGH-Level Output Current 12 IOL LOW-Level Output Current 12 TA Free-Air Operating Temperature 't/'V Input Edge Rate, VIN 0.8V–2.0V, VCC 3.0V Units mA 40 85 qC 0 10 ns/V Note 2: Absolute Maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute maximum rated conditions is not implied. Note 3: IO Absolute Maximum Rating must be observed. DC Electrical Characteristics Symbol VCC (V) Parameter TA 40qC to 85qC Min Typ (Note 4) Units 1.2 2.7 Conditions Max Input Clamp Diode Voltage VIH Input HIGH Voltage VIL Input LOW Voltage 2.7–3.6 VOH Output HIGH Voltage 2.7–3.6 VCC 0.2 V IOH 3.0 2.0 V IOH 12 mA V IOL 100 PA 2.7–3.6 VOL Output LOW Voltage 2.7 II(HOLD) Bushold Input Minimum Drive 3.0 II(OD) Bushold Input Over-Drive 3.0 (Note 5) Current to Change State II Input Current 2.0 0.8 0.2 3.0 (Note 5) Data Pins IPU/PD Power Off Leakage Current Power up/down 3-STATE Output Current V II VO d 0.1V or VO t VCC 0.1V 100 PA 12 mA V IOL 75 PA VI 0.8V 75 PA VI 2.0V 500 PA (Note 6) PA (Note 7) 500 Control Pins IOFF 0.8 V 18 mA VIK 3.6 10 PA VI 5.5V 3.6 r1 PA VI 0V or VCC 5 PA VI 0V 1 PA VI VCC 0 r100 PA 0V d VI or VO d 5.5V 0–1.5V r100 PA 3.6 VO VI 0.5V to 3.0V GND or VCC IOZL 3-STATE Output Leakage Current 3.6 5 PA VO 0.5V IOZH 3-STATE Output Leakage Current 3.6 5 PA VO 3.0V IOZH 3-STATE Output Leakage Current 3.6 10 PA VCC VO d 5.5V ICCH Power Supply Current 3.6 0.19 mA Outputs HIGH ICCL Power Supply Current 3.6 5 mA Outputs LOW ICCZ Power Supply Current 3.6 0.19 mA Outputs Disabled 3 www.fairchildsemi.com 74LVT2244 • 74LVTH2244 Absolute Maximum Ratings(Note 2) 74LVT2244 • 74LVTH2244 DC Electrical Characteristics Symbol (Continued) TA 40qC to 85qC VCC (V) Parameter Typ Min Units Max (Note 4) Conditions ICCZ Power Supply Current 3.6 0.19 mA VCC d V O d 5.5V, 'ICC Increase in Power Supply Current 3.6 0.2 mA One Input at VCC 0.6V Outputs Disabled Other Inputs at VCC or GND (Note 8) Note 4: All typical values are at VCC 3.3V, TA 25qC. Note 5: Applies to bushold versions only (74LVTH2244). Note 6: An external driver must source at least the specified current to switch from LOW-to-HIGH. Note 7: An external driver must sink at least the specified current to switch from HIGH-to-LOW. Note 8: This is the increase in supply current for each, input that is at the specified voltage level rather than VCC or GND. Dynamic Switching Characteristics Symbol (Note 9) VCC Parameter (V) 25qC TA Min Conditions Units Typ CL Max VOLP Quiet Output Maximum Dynamic VOL 3.3 0.8 V VOLV Quiet Output Minimum Dynamic VOL 3.3 0.8 V 50 pF, RL 500: (Note 10) Note 9: Characterized in SOIC package. Guaranteed parameter, but not tested. Note 10: Max number of outputs defined as (n). n1 data inputs are driven 0V to 3V. Output under test held LOW. AC Electrical Characteristics TA CL Symbol Parameter VCC Min 40qC to 85qC 50 pF, RL 3.3V r 0.3V Typ 500: VCC 2.7V Max Min Max 1.0 4.4 1.0 5.3 1.0 4.1 1.0 4.4 1.0 5.9 1.0 7.7 1.1 5.5 1.1 6.2 1.9 6.1 1.9 6.8 1.8 4.5 1.8 4.5 Units (Note 11) tPLH Propagation Delay Data to Output tPHL tPZH Output Enable Time tPZL tPHZ Output Disable Time tPLZ tOSHL Output to Output Skew tOSLH (Note 12) Note 11: All typical values are at VCC 1.0 3.3V, TA ns ns ns 1.0 ns 25qC. Note 12: 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). Capacitance Symbol (Note 13) Parameter Conditions CIN Input Capacitance VCC 0V, VI COUT Output Capacitance VCC 3.0V, VO Note 13: Capacitance is measured at frequency f www.fairchildsemi.com 0V or VCC 0V or VCC 1 MHz, per MIL-STD-883B, Method 3012. 4 Typical Units 3 pF 6 pF 74LVT2244 • 74LVTH2244 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Package Number M20B 5 www.fairchildsemi.com 74LVT2244 • 74LVTH2244 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M20D www.fairchildsemi.com 6 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC20 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 74LVT2244 • 74LVTH2244 Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs and 25: Series Resistors in the Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued)