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| TC7MA2244FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7MA2244FK Low-Voltage Octal Bus Buffer with 3.6 V Tolerant Inputs and Outputs The TC7MA2244FK 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 over voltage 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. Weight: 0.03 g (typ.) The 26 series resistor helps reducing output overshoot and undershoot without external resistor. All inputs are equipped with protection circuits against static discharge. Features * * * 26 series resistors on outputs. Low voltage operation: VCC = 1.8~3.6 V High speed operation: tpd = 4.4 ns (max) (VCC = 3.0~3.6 V) tpd = 5.6 ns (max) (VCC = 2.3~2.7 V) tpd = 9.8 ns (max) (VCC = 1.8 V) 3.6 V tolerant inputs and outputs. 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: VSSOP (US20) Power down protection is provided on all inputs and outputs. Supports live insertion/withdrawal (*) *: To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver. 000630EBA1 * * * * * * * * 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 this document shall be made at the customer's own risk. * The products described in this document are subject to the foreign exchange and foreign trade laws. * The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. * The information contained herein is subject to change without notice. 2000-07-04 1/8 TC7MA2244FK Pin Assignment (top view) IEC Logic Level 1OE 1 2 4 6 8 EN 18 16 14 12 1Y1 1Y2 1Y3 1Y4 1OE 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VCC 2OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 1A1 1A2 1A3 1A4 2OE 2A1 2A2 2A3 2A4 19 11 13 15 17 EN 9 7 5 3 2Y1 2Y2 2Y3 2Y4 GND 10 Truth Table Inputs OE Outputs An L H X L H Z L L H X: Don't care Z: High impedance Maximum Ratings 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 -0.5~4.6 -0.5~4.6 -0.5~4.6 (Note1) Unit V V V mA (Note3) mA mA mW mA C -0.5~VCC + 0.5 (Note2) -50 50 50 180 100 -65~150 Note1: Off-state Note2: High or low state. IOUT absolute maximum rating must be observed. Note3: VOUT < GND, VOUT > VCC 2000-07-04 2/8 TC7MA2244FK Recommended Operating Range Characteristics Supply voltage Input voltage Output voltage Symbol VCC VIN VOUT Rating 1.8~3.6 1.2~3.6 -0.3~3.6 0~3.6 0~VCC 12 Output current IOH/IOL 8 4 Operating temperature Input rise and fall time Topr dt/dv -40~85 0~10 (Note10) (Note5) (Note6) (Note7) (Note8) (Note9) C ns/V mA (Note4) V V Unit V Note4: Data retention only Note5: Off-state Note6: High or low state Note7: VCC = 3.0~3.6 V Note8: VCC = 2.3~2.7 V Note9: VCC = 1.8 V Note10: VIN = 0.8~2.0 V, VCC = 3.0 V Electrical Characteristics < DC Characteristics (Ta = -40~85C, 2.7 V < VCC = 3.6 V) Characteristics High level Low level Symbol VIH VIL Test Condition VCC (V) Input voltage IOH = -100 A High level VOH VIN = VIH or VIL IOH = -6 mA IOH = -8 mA Output voltage IOH = -12 mA IOL = 100 A Low 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 IIN IOZ IOFF ICC ICC VIN = 0~3.6 V VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = = VIH = VCC - 0.6 V (per input) 2.7~3.6 2.7~3.6 2.7~3.6 2.7 3.0 3.0 2.7~3.6 2.7 3.0 3.0 2.7~3.6 2.7~3.6 0 2.7~3.6 2.7~3.6 2.7~3.6 2.0 VCC - 0.2 2.2 2.4 2.2 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 V Min Max Unit Quiescent supply current 2000-07-04 3/8 TC7MA2244FK < < DC Characteristics (Ta = -40~85C, 2.3 V = VCC = 2.7 V) Characteristics High level Low level Symbol VIH VIL Test Condition VCC (V) Input voltage IOH = -100 A High level Output voltage VOH VIN = VIH or VIL IOH = -4 mA IOH = -6 mA IOH = -8 mA IOL = 100 A Low 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 = 0~3.6 V VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = = 2.3~2.7 2.3~2.7 2.3~2.7 2.3 2.3 2.3 2.3~2.7 2.3 2.3 2.3~2.7 2.3~2.7 0 2.3~2.7 2.3~2.7 1.6 VCC - 0.2 2.0 1.8 1.7 0.7 0.2 0.4 0.6 5.0 10.0 10.0 20.0 20.0 A A A A V V Min Max Unit < DC Characteristics (Ta = -40~85C, 1.8 V = VCC < 2.3 V) Characteristics Symbol Test Condition VCC (V) High level Input voltage Low level VIL IOH = -100 A IOH = -4 mA Low 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 = 0~3.6 V VIN = VIH or VIL VOUT = 0~3.6 V VIN, VOUT = 0~3.6 V VIN = VCC or GND VCC < (VIN, VOUT) < 3.6 V = = IOL = 100 A IOL = 4 mA 1.8~2.3 1.8 1.8 1.8 1.8 1.8 1.8 0 1.8 1.8 VIH 1.8~2.3 0.7 x VCC VCC - 0.2 1.4 0.2 x VCC 0.2 0.3 5.0 10.0 10.0 20.0 20.0 A A A A V V Min Max Unit High level Output voltage VOH VIN = VIH or VIL 2000-07-04 4/8 TC7MA2244FK AC Characteristics (Ta = -40~85C, Input: tr = tf = 2.0 ns, CL = 30 pF, RL = 500 ) Characteristics Symbol Test Condition VCC (V) tpLH tpHL 1.8 Figure 1, Figure 2 2.5 0.2 3.3 0.3 1.8 3-state output enable tpZL tpZH Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.8 3-state output disable tpLZ tpHZ Figure 1, Figure 3 2.5 0.2 3.3 0.3 1.8 Output to output skew tosLH tosHL (Note11) 2.5 0.2 3.3 0.3 1.5 0.8 0.6 1.5 0.8 0.6 1.5 0.8 0.6 9.8 5.6 4.4 9.8 6.5 5.0 7.2 3.9 3.6 0.5 0.5 0.5 ns ns ns ns Min Max Unit Propagation delay time For CL = 50 pF, add approximately 300 ps to the AC maximum specification. Note11: This parameter is guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|) 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 (Note12) (Note12) (Note12) (Note12) (Note12) (Note12) (Note12) (Note12) (Note12) 1.8 2.5 3.3 1.8 2.5 3.3 1.8 2.5 3.3 0.15 0.25 0.35 -0.15 -0.25 -0.35 1.55 2.05 2.65 V V V Typ. Unit Note12: This parameter is 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 (Note13) 1.8, 2.5, 3.3 6 7 20 pF pF pF Typ. Unit Note13: 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) = CPD VCC fIN + ICC/8 (per bit) 2000-07-04 5/8 TC7MA2244FK AC Test Circuit 6.0 V or VCC x 2 Open GND Measure CL RL tpLZ, tpZL CL = 30 pF RL = 500 tpHZ, tpZH Switch RL Parameter tpLH, tpHL 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 Output Figure 1 AC Waveform tr Input (A) 2.0 ns tf 90% VM 10% 2.0 ns VIH GND Output (Y) tpLH VOH VM tpHL VOL Figure 2 tpLH, tpHL 2000-07-04 6/8 TC7MA2244FK tr Output Enable Control ( OE ) 2.0 ns tf 90% VM 2.0 ns VIH 10% GND tpLZ Output (Y) Low to Off to Low tpHZ VY tpZL 3.0 V or VCC VM VX tpZH VOL VOH VM GND Output (Y) High to Off to High Outputs enabled Outputs disabled Outputs enabled VCC Symbol VIH VM VX VY 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 Figure 3 tpLZ, tpHZ, tpZL, tpZH 2000-07-04 7/8 TC7MA2244FK Package Dimensions Weight: 0.03 g (typ.) 2000-07-04 8/8 |
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