 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| TC74VCX2244FT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VCX2244FT, TC74VCX2244FK Low-Voltage Octal Bus Buffer with 3.6-V Tolerant Inputs and Outputs The TC74VCX2244 is a high-performance CMOS octal bus buffer. Designed for use in 1.8-V, 2.5-V or 3.3-V systems, it achieves high-speed operation while maintaining the CMOS low power dissipation. It is also designed with overvoltage tolerant inputs and outputs up to 3.6 V. This device is non-inverting 3-state buffer having four active-low output enables. When the OE input is high, the outputs are in a high-impedance state. This device is designed to be used with 3-state memory address drivers, etc. The 26- series resistor helps reducing output overshoot and undershoot without external resistor. All inputs are equipped with protection circuits against static discharge. TC74VCX2244FT TC74VCX2244FK Features * * * 26- series resistors on outputs. Low-voltage operation: VCC = 1.8 to 3.6 V High-speed operation: tpd = 4.4 ns (max) (VCC = 3.0 to 3.6 V) : tpd = 5.6 ns (max) (VCC = 2.3 to 2.7 V) : tpd = 9.8 ns (max) (VCC = 1.8 V) * Output current : IOH/IOL = 12 mA (min) (VCC = 3.0 V) : IOH/IOL = 8 mA (min) (VCC = 2.3 V) : IOH/IOL = 4 mA (min) (VCC = 1.8 V) * * * * Latch-up performance: -300 mA ESD performance: Machine model 200 V Human body model 2000 V Package: TSSOP and VSSOP (US) 3.6-V tolerant function and power-down protection provided on all inputs and outputs Weight TSSOP20-P-0044-0.65A VSSOP20-P-0030-0.50 : 0.08 g (typ.) : 0.03 g (typ.) 1 2007-10-19 TC74VCX2244FT/FK Pin Assignment (top view) IEC Logic Symbol 1 2 4 6 8 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VCC 1OE 1A1 1A2 1A3 1A4 EN 18 16 14 12 1Y1 1Y2 1Y3 1Y4 2OE 1Y1 2A4 1Y2 2OE 2A3 1Y3 2A2 1Y4 2A1 2A1 2A2 2A3 2A4 19 11 13 15 17 EN 9 7 5 3 2Y1 2Y2 2Y3 2Y4 GND 10 Truth Table Inputs Outputs An L H X L H Z OE L L H X: Don't care Z: High impedance 2 2007-10-19 TC74VCX2244FT/FK Absolute Maximum Ratings (Note 1) Characteristics Power supply voltage DC input voltage DC output voltage Input diode current Output diode current DC output current Power dissipation DC VCC/ground current Storage temperature Symbol VCC VIN VOUT IIK IOK IOUT PD ICC/IGND Tstg Rating -0.5 to 4.6 -0.5 to 4.6 -0.5 to 4.6 (Note 2) -0.5 to VCC + 0.5 (Note 3) -50 50 50 180 100 -65 to 150 (Note 4) mA mA mA mW mA C V Unit V V Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even destruction. Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum ratings and the operating ranges. Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook ("Handling Precautions"/"Derating Concept and Methods") and individual reliability data (i.e. reliability test report and estimated failure rate, etc). Note 2: OFF state Note 3: High or low state. IOUT absolute maximum rating must be observed. Note 4: VOUT < GND, VOUT > VCC Operating Ranges (Note 1) Characteristics Power supply voltage Input voltage Output voltage Symbol VCC VIN VOUT Rating 1.8 to 3.6 1.2 to 3.6 -0.3 to 3.6 0 to 3.6 0 to VCC 12 Output current Operating temperature Input rise and fall time IOH/IOL Topr dt/dv 8 4 -40 to 85 0 to 10 (Note 8) (Note 3) (Note 4) (Note 5) (Note 6) (Note 7) C ns/V mA (Note 2) Unit V V V Note 1: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. Note 2: Data retention only Note 3: OFF state Note 4: High or low state Note 5: VCC = 3.0 to 3.6 V Note 6: VCC = 2.3 to 2.7 V Note 7: VCC = 1.8 V Note 8: VIN = 0.8 to 2.0 V, VCC = 3.0 V 3 2007-10-19 TC74VCX2244FT/FK Electrical Characteristics < DC Characteristics (Ta = -40 to 85C, 2.7 V < VCC = 3.6 V) Characteristics H-level L-level Symbol VIH VIL Test Condition IOH = -100 A H-level VOH VIN = VIH or VIL IOH = -6 mA IOH = -8 mA Output voltage IOH = -12 mA IOL = 100 A L-level VOL VIN = VIH or VIL IOL = 6 mA IOL = 8 mA IOL = 12 mA Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current Increase in ICC per input IIN IOZ IOFF ICC ICC VIN = 0 to 3.6 V VIN = VIH or VIL VOUT = 0 to 3.6 V VIN, VOUT = 0 to 3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = = VIH = VCC - 0.6 V VCC (V) 2.7 to 3.6 2.7 to 3.6 2.7 to 3.6 2.7 3.0 3.0 2.7 to 3.6 2.7 3.0 3.0 2.7 to 3.6 2.7 to 3.6 0 2.7 to 3.6 2.7 to 3.6 2.7 to 3.6 Min 2.0 VCC - 0.2 2.2 2.4 2.2 Max 0.8 0.2 0.4 0.55 0.8 5.0 10.0 10.0 20.0 20.0 750 A A A A V Unit Input voltage V < < DC Characteristics (Ta = -40 to 85C, 2.3 V = VCC = 2.7 V) Characteristics H-level L-level Symbol VIH VIL Test Condition IOH = -100 A H-level Output voltage VOH VIN = VIH or VIL IOH = -4 mA IOH = -6 mA IOH = -8 mA IOL = 100 A L-level VOL VIN = VIH or VIL IOL = 6 mA IOL = 8 mA Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current IIN IOZ IOFF ICC VIN = 0 to 3.6 V VIN = VIH or VIL VOUT = 0 to 3.6 V VIN, VOUT = 0 to 3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = = VCC (V) 2.3 to 2.7 2.3 to 2.7 2.3 to 2.7 2.3 2.3 2.3 2.3 to 2.7 2.3 2.3 2.3 to 2.7 2.3 to 2.7 0 2.3 to 2.7 2.3 to 2.7 Min 1.6 VCC - 0.2 2.0 1.8 1.7 Max 0.7 0.2 0.4 0.6 5.0 10.0 10.0 20.0 20.0 A A A A V Unit Input voltage V 4 2007-10-19 TC74VCX2244FT/FK < DC Characteristics (Ta = -40 to 85C, 1.8 V = VCC < 2.3 V) Characteristics Symbol Test Condition IOH = -100 A IOH = -4 mA L-level Input leakage current 3-state output OFF state current Power-off leakage current Quiescent supply current VOL IIN IOZ IOFF ICC VIN = VIH or VIL VIN = 0 to 3.6 V VIN = VIH or VIL VOUT = 0 to 3.6 V VIN, VOUT = 0 to 3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = = IOL = 100 A IOL = 4 mA VCC (V) 1.8 to 2.3 1.8 to 2.3 1.8 1.8 1.8 1.8 1.8 1.8 0 1.8 1.8 Min 0.7 x VCC VCC - 0.2 1.4 Max 0.2 x VCC 0.2 0.3 5.0 10.0 10.0 20.0 20.0 A A A A V V Unit H-level Input voltage L-level VIH VIL H-level Output voltage VOH VIN = VIH or VIL AC Characteristics (Ta = -40 to 85C, input: tr = tf = 2.0 ns, CL = 30 pF, RL = 500 ) (Note 1) Characteristics Symbol Test Condition VCC (V) 1.8 Figure 1, Figure 2 2.5 0.2 3.3 0.3 1.8 Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.8 Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.8 (Note 2) 2.5 0.2 3.3 0.3 Min 1.5 0.8 0.6 1.5 0.8 0.6 1.5 0.8 0.6 Max 9.8 5.6 4.4 9.8 6.5 5.0 7.0 3.9 3.6 0.5 0.5 0.5 ns ns ns ns Unit Propagation delay time tpLH tpHL 3-state output enable time tpZL tpZH 3-state output disable time tpLZ tpHZ Output to output skew tosLH tosHL Note 1: For CL = 50 pF, add approximately 300 ps to the AC maximum specification. Note 2: Parameter guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|) 5 2007-10-19 TC74VCX2244FT/FK Dynamic Switching Characteristics (Ta = 25C, input: tr = tf = 2.0 ns, CL = 30 pF) Characteristics Symbol Test Condition VCC (V) VIH = 1.8 V, VIL = 0 V Quiet output maximum dynamic VOL VOLP VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V VIH = 1.8 V, VIL = 0 V Quiet output minimum dynamic VOL VOLV VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V VIH = 1.8 V, VIL = 0 V Quiet output minimum dynamic VOH VOHV VIH = 2.5 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V (Note) (Note) (Note) (Note) (Note) (Note) (Note) (Note) (Note) 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 Typ. 0.15 0.25 0.35 -0.15 -0.25 -0.35 1.55 2.05 2.65 V V V Unit Note: Parameter guaranteed by design. Capacitive Characteristics (Ta = 25C) Characteristics Input capacitance Output capacitance Power dissipation capacitance Symbol CIN CO CPD fIN = 10 MHz Test Condition VCC (V) 1.8, 2.5, 3.3 1.8, 2.5, 3.3 (Note) 1.8, 2.5, 3.3 Typ. 6 7 20 Unit pF pF pF Note: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: ICC (opr) = CPDVCCfIN + ICC/8 (per bit) AC Test Circuit 6.0 V or VCC x 2 Open GND Measure CL RL CL = 30 pF RL = 500 Parameter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH 6.0 V VCC x 2 Switch Open @VCC = 3.3 0.3 V @VCC = 2.5 0.2 V @VCC = 1.8 V GND Switch RL Output Figure 1 6 2007-10-19 TC74VCX2244FT/FK AC Waveform tr 2.0 ns Input (A) tf 2.0 ns 90% VM VIH 10% GND VOH VM tpLH tpHL VOL Output (Y) Figure 2 tpLH, tpHL tr 2.0 ns Output Enable Control ( OE ) tpLZ Output (Y) Low to Off to Low tpHZ Output (Y) High to Off to High Outputs enabled tf 2.0 ns 90% VM VIH 10% tpZL 3.0 V or VCC VM VX tpZH VOL VOH VM GND Outputs disabled Outputs enabled GND VY Figure 3 tpLZ, tpHZ, tpZL, tpZH Symbol VIH VM VX VY VCC 3.3 0.3 V 2.7 V 1.5 V VOL + 0.3 V VOH - 0.3 V 2.5 0.2 V VCC VCC/2 VOL + 0.15 V VOH - 0.15 V 1.8 V VCC VCC/2 VOL + 0.15 V VOH - 0.15 V 7 2007-10-19 TC74VCX2244FT/FK Package Dimensions Weight: 0.08 g (typ.) 8 2007-10-19 TC74VCX2244FT/FK Package Dimensions Weight: 0.03 g (typ.) 9 2007-10-19 TC74VCX2244FT/FK RESTRICTIONS ON PRODUCT USE * The information contained herein is subject to change without notice. 20070701-EN GENERAL * TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of such TOSHIBA products could cause loss of human life, bodily injury or damage to property. In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and conditions set forth in the "Handling Guide for Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc. * The TOSHIBA products listed in this document are intended for usage in general electronics applications (computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances, etc.).These TOSHIBA products are neither intended nor warranted for usage in equipment that requires extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in his document shall be made at the customer's own risk. * The products described in this document shall not be used or embedded to any downstream products of which manufacture, use and/or sale are prohibited under any applicable laws and regulations. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any patents or other rights of TOSHIBA or the third parties. * Please contact your sales representative for product-by-product details in this document regarding RoHS compatibility. Please use these products in this document in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances. Toshiba assumes no liability for damage or losses occurring as a result of noncompliance with applicable laws and regulations. 10 2007-10-19 |
Price & Availability of TC74VCX2244FT07
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |