 |
|
| 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: |
| TC74VCXH16244FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VCXH16244FT Low-Voltage 16-Bit Bus Buffer with Bushold The TC74VCXH16244FT is a high-performance CMOS 16-bit 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. This device is non-inverting 3-state buffer having four active-low output enables. It can be used as four 4-bit buffers two 8-bit buffers or one 16-bit buffer. 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 A data inputs include active bushold circuitry, eliminating Weight: 0.25 g (typ.) the need for external pull-up resistors to hold unused or floating data inputs at a valid logic level. All inputs are equipped with protection circuits against static discharge. Features * * * Low-voltage operation: VCC = 1.8 to 3.6 V Bushold on data inputs eliminating the need for external pull-up/pull-down resistors High-speed operation: tpd = 2.5 ns (max) (VCC = 3.0 to 3.6 V) : tpd = 3.0 ns (max) (VCC = 2.3 to 2.7 V) : tpd = 5.0 ns (max) (VCC = 1.8 V) * Output current : IOH/IOL = 24 mA (min) (VCC = 3.0 V) : IOH/IOL = 18 mA (min) (VCC = 2.3 V) : IOH/IOL = 6 mA (min) (VCC = 1.8 V) * * * * Latch-up performance: -300 mA ESD performance: Machine model 200 V Human body model 2000 V Package: TSSOP 3.6-V tolerant function and power-down protection control inputs and outputs 1 2007-10-19 TC74VCXH16244FT Pin Assignment (top view) IEC Logic Symbol 1OE 1Y1 1Y2 GND 1Y3 1Y4 VCC 2Y1 2Y2 1 2 3 4 5 6 7 8 9 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 2OE 1A1 1A2 GND 1A3 1A4 VCC 2A1 2A2 GND 2A3 2A4 3A1 3A2 GND 3A3 3A4 VCC 4A1 4A2 GND 4A3 4A4 1OE 2OE 3OE 4OE 1 48 25 24 47 46 44 43 41 40 38 37 36 35 33 32 30 29 27 26 EN1 EN2 EN3 EN4 1 1 2 3 5 6 1 2 8 9 11 1 3 12 13 14 16 1 4 17 19 20 22 23 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 3Y1 3Y2 3Y3 3Y4 4Y1 4Y2 4Y3 4Y4 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 3A1 3A2 3A3 3A4 4A1 4A2 4A3 4A4 GND 10 2Y3 11 2Y4 12 3Y1 13 3Y2 14 GND 15 3Y3 16 3Y4 17 VCC 18 4Y1 19 4Y2 20 GND 21 4Y3 22 4Y4 23 4OE 24 3OE 2 2007-10-19 TC74VCXH16244FT Truth Table Inputs Outputs 1Y1-1Y4 L H Z 1A1-1A4 2A1-2A4 1Y1-1Y4 2Y1-2Y4 3Y1-3Y4 4Y1-4Y4 3A1-3A4 4A1-4A4 1/4 1OE 3OE System Diagram 1A1-1A4 L H X 1OE L L H 2OE 4OE Inputs 2OE L L H 2A1-2A4 L H X Outputs 2Y1-2Y4 L H Z Inputs Outputs 3Y1-3Y4 L H Z 3OE L L H 3A1-3A4 L H X Inputs 4OE L L H 4A1-4A4 L H X Outputs 4Y1-4Y4 L H Z X: Don't care Z: High impedance 3 2007-10-19 TC74VCXH16244FT Absolute Maximum Ratings (Note 1) Characteristics Power supply voltage DC input voltage ( OE ) (An) Symbol VCC VIN Rating -0.5 to 4.6 -0.5 to 4.6 -0.5 to VCC + 0.5 -0.5 to 4.6 (Note 2) DC output voltage VOUT -0.5 to VCC + 0.5 (Note 3) Input diode current Output diode current Output current Power dissipation DC VCC/ground current per supply pin Storage temperature IIK IOK IOUT PD ICC/IGND Tstg -50 50 50 400 100 -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 4 2007-10-19 TC74VCXH16244FT Operating Ranges (Note 1) (Note 2) Characteristics Power supply voltage ( OE ) (An) Symbol VCC Rating 1.8 to 3.6 1.2 to 3.6 (Note 3) -0.3 to 3.6 0 to VCC 0 to 3.6 (Note 4) 0 to VCC (Note 5) 24 Output current IOH/IOL 18 6 Operating temperature Input rise and fall time Topr dt/dv -40 to 85 0 to 10 (Note 9) (Note 6) (Note 7) (Note 8) C ns/V mA Unit V Input voltage VIN V Output voltage VOUT 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: Floating or unused control inputs must be held high or low. Note 3: Data retention Note 4: OFF state Note 5: High or low state Note 6: VCC = 3.0 to 3.6 V Note 7: VCC = 2.3 to 2.7 V Note 8: VCC = 1.8 V Note 9: VIN = 0.8 to 2.0 V, VCC = 3.0 V 5 2007-10-19 TC74VCXH16244FT 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 = -12 mA IOH = -18 mA Output voltage IOH = -24 mA IOL = 100 A L-level VOL VIN = VIH or VIL IOL = 12 mA IOL = 18 mA IOL = 24 mA Input leakage current ( OE ) (An) IIN VIN = 0 to 3.6 V VIN = VCC or GND VIN = 0.8 V VIN = 2.0 V (Note 1) (Note 2) VIN = VIH or VIL VOUT = 0 to 3.6 V VOUT = 0 to 3.6 V VIN = VCC or GND VCC < 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 3.0 3.0 3.6 3.6 2.7 to 3.6 0 2.7 to 3.6 (Note 3) 2.7 to 3.6 2.7 to 3.6 Min 2.0 VCC - 0.2 2.2 2.4 2.2 75 -75 Max 0.8 0.2 0.4 0.4 0.55 5.0 5.0 450 -450 10.0 10.0 20.0 20.0 750 A V Unit Input voltage V Bushold input minimum drive hold current Bushold input over-drive current to change state 3-state output OFF state current Power-off leakage current Quiescent supply current Increase in ICC per input II (HOLD) A II (OD) A IOZ IOFF ICC ICC A A A A Note 1: An external driver must source at least the specified current to switch LOW-to-HIGH. Note 2: An external driver must sink at least the specified current to switch HIGH-to-LOW. Note 3: Outputs high impedance only. 6 2007-10-19 TC74VCXH16244FT < < 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 = -6 mA IOH = -12 mA IOH = -18 mA IOL = 100 A L-level VOL VIN = VIH or VIL IOL = 12 mA IOL = 18 mA Input leakage current ( OE ) (An) IIN VIN = 0 to 3.6 V VIN = VCC or GND VIN = 0.7 V VIN = 1.6 V (Note 1) (Note 2) VIN = VIH or VIL VOUT = 0 to 3.6 V VOUT = 0 to 3.6 V VIN = VCC or GND VCC < 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 2.3 2.3 2.7 2.7 2.3 to 2.7 0 2.3 to 2.7 (Note 3) 2.3 to 2.7 Min 1.6 VCC - 0.2 2.0 1.8 1.7 45 -45 Max 0.7 0.2 0.4 0.6 5.0 5.0 300 -300 10.0 10.0 20.0 20.0 A V Unit Input voltage V Bushold input minimum drive hold current Bushold input over-drive current to change state 3-state output OFF state current Power-off leakage current Quiescent supply current II (HOLD) A II (OD) A IOZ IOFF ICC A A A Note 1: An external driver must source at least the specified current to switch LOW-to-HIGH. Note 2: An external driver must sink at least the specified current to switch HIGH-to-LOW. Note 3: Outputs high impedance only. 7 2007-10-19 TC74VCXH16244FT < DC Characteristics (Ta = -40 to 85C, 1.8 V = VCC < 2.3 V) Characteristics Symbol Test Condition IOH = -100 A IOH = -6 mA L-level Input leakage current ( OE ) (An) VOL VIN = VIH or VIL VIN = 0 to 3.6 V VIN = VCC or GND VIN = 0.36 V VIN = 1.26 V (Note 1) (Note 2) VIN = VIH or VIL VOUT = 0 to 3.6 V VOUT = 0 to 3.6 V VIN = VCC or GND VCC < VOUT < 3.6 V = = (Note 3) IOL = 100 A IOL = 6 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 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 25 -25 Max 0.2 x VCC 0.2 0.3 5.0 5.0 200 -200 10.0 10.0 20.0 20.0 A V V Unit H-level Input voltage L-level VIH VIL H-level Output voltage VOH VIN = VIH or VIL IIN Bushold input minimum drive hold current Bushold input over-drive current to change state 3-state output OFF state current Power-off leakage current Quiescent supply current II (HOLD) A II (OD) A IOZ IOFF ICC A A A Note 1: An external driver must source at least the specified current to switch LOW-to-HIGH. Note 2: An external driver must sink at least the specified current to switch HIGH-to-LOW. Note 3: Outputs high impedance only. 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 1.0 0.8 1.5 1.0 0.8 1.5 1.0 0.8 Max 5.0 3.0 2.5 6.5 4.1 3.5 5.0 3.8 3.5 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|) 8 2007-10-19 TC74VCXH16244FT 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. 0.25 0.6 0.8 -0.25 -0.6 -0.8 1.5 1.9 2.2 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) (Note) 1.8, 2.5, 3.3 1.8, 2.5, 3.3 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/16 (per bit) 9 2007-10-19 TC74VCXH16244FT 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 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 10 2007-10-19 TC74VCXH16244FT Package Dimensions Weight: 0.25 g (typ.) 11 2007-10-19 TC74VCXH16244FT 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. 12 2007-10-19 |
Price & Availability of TC74VCXH16244FT
 |
|
|
|
|
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] |