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| TC7MZ245FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7MZ245FK Low Voltage Octal Bus Transceiver with 5 V Tolerant Inputs and Outputs The TC7MZ245FK is a high performance cmos octal bus transceiver. Designed for use in 3.3 V systems, it achieves high speed operation while maintaining the CMOS low power dissipation. The device is designed for low-voltage (3.3 V) VCC applications, but it could be used to interface to 5 V supply environment for both inputs and outputs. The direction of data transmission is determined by the level of the DIR input. The enable input ( OE ) can be used to disable the device so that the busses are effectively isolated. All inputs are equipped with protection circuits against static discharge. Weight: 0.03 g (typ.) Features * * * * * * * * Low voltage operation: VCC = 2.0~3.6 V High speed operation: tpd = 7.0 ns (max) (VCC = 3.0~3.6 V) Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.0 V) Latch-up performance: 500 mA Package: VSSOP (US20) Bidirectional interface between 3.3 V and 5.0 V signals. Power down protection is provided on all inputs and outputs. Pin and function compatible with the 74 series (74AC/VHC/HC/F/ALS/LS etc.) 245 type. Note: Do not apply a signal to any bus terminal when it is in the output mode. Damage may result. All floating (high impedance) bus terminals must have their input levels fixed by means of pull up or pull down resistors. 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 1/7 TC7MZ245FK Pin Assignment (top view) IEC Logic Symbol DIR A1 A2 A3 A4 A5 A6 A7 A8 1 2 3 4 5 6 7 8 9 20 19 18 17 16 15 14 13 12 11 VCC OE OE DIR 19 1 G3 3 EN 1 [BA] 3 EN 2 [AB] 1 2 18 B1 B1 B2 A1 2 A2 B3 B4 B5 B6 B7 A6 GND 10 B8 A7 A8 A3 A4 A5 3 4 5 6 7 8 9 17 16 15 14 13 12 11 B2 B3 B4 B5 B6 B7 B8 Truth Table Inputs OE Outputs DIR L H X A=B B=A Z Function A-Bus Output Input B-Bus Input Output L L H High Impedance X: Don't care Z: High impedance 2000-07-04 2/7 TC7MZ245FK Maximum Ratings Characteristics Supply voltage range DC input voltage (DIR, OE ) DC bus I/O voltage Input diode current Output diode current DC output current Power dissipation DC VCC/ground current Storage temperature Symbol VCC VIN VI/O IIK IOK IOUT PD ICC/IGND Tstg Rating -0.5~7.0 -0.5~7.0 -0.5~7.0 (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: Output in off-state Note2: High or low state. IOUT absolute maximum rating must be observed. Note3: VOUT < GND, VOUT > VCC Recommended Operating Conditions Characteristics Supply voltage Input voltage (DIR, OE ) Bus I/O voltage Symbol VCC VIN VI/O Rating 2.0~3.6 1.5~3.6 0~5.5 0~5.5 0~VCC 24 12 -40~85 0~10 (Note9) (Note5) (Note6) (Note7) (Note8) C ns/V mA (Note4) V V Unit V Output current Operating temperature Input rise and fall time IOH/IOL Topr dt/dv Note4: Data retention only Note5: Output in off-state Note6: High or low state Note7: VCC = 3.0~3.6 V Note8: VCC = 2.7~3.0 V Note9: VIN = 0.8~2.0 V, VCC = 3.0 V 2000-07-04 3/7 TC7MZ245FK Electrical Characteristics DC Characteristics (Ta = -40~85C) 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 = -12 mA IOH = -18 mA Output voltage IOH = -24 mA IOL = 100 A Low level VOL VIN = VIH or VIL IOL = 12 mA IOL = 16 mA IOL = 24 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 = 0~5.5 V VIN = VIH or VIL VOUT = 0~5.5 V VIN/VOUT = 5.5 V VIN = VCC or GND VIN/VOUT = 3.6~5.5 V VIH = VCC - 0.6 V 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 0.4 0.55 5.0 5.0 10.0 10.0 10.0 500 A A A A V V Min Max Unit 2000-07-04 4/7 TC7MZ245FK AC Characteristics (Ta = -40~85C) Characteristics Symbol tpLH tpHL Output enable time tpZL tpZH Output disable time tpLZ tpHZ Output to output skew tosLH tosHL (Note10) Figure 1, Figure 3 Figure 1, Figure 3 Test Condition VCC (V) Propagation delay time Figure 1, Figure 2 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 2.7 3.3 0.3 1.5 1.5 1.5 8.0 7.0 9.5 8.5 8.5 7.5 1.0 ns ns ns ns Min Max Unit Note10: This parameter is guaranteed by design. (tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|) Dynamic Switching Characteristics (Ta = 25C, Input: tr = tf = 2.5 ns, CL = 50 pF, RL = 500 ) Characteristics Quiet output maximum dynamic Quiet output minimum dynamic VOL VOL Symbol VOLP |VOLV| Test Condition VCC (V) VIH = 3.3 V, VIL = 0 V VIH = 3.3 V, VIL = 0 V 3.3 3.3 0.8 0.8 V V Typ. Unit Capacitive Characteristics (Ta = 25C) Characteristics Input capacitance Bus input capacitance Power dissipation capacitance Symbol CIN CI/O CPD DIR, OE An, Bn fIN = 10 MHz (Note11) Test Condition VCC (V) 3.3 3.3 3.3 7 8 25 pF pF pF Typ. Unit Note11: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption. Average operating current can be obtained by the equation: ICC (opr) = CPD VCC fIN + ICC/8 (per bit) 2000-07-04 5/7 TC7MZ245FK AC Test Circuit Open 6.0 V GND Measure CL = 50 pF RL = 500 CL RL Switch RL Paramenter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH Switch Open 6.0 V GND Output Figure 1 AC Waveform tr Input (An, Bn) 2.5 ns tf 90% 1.5 V 10% 2.5 ns 2.7 V GND Output (Bn, An) tpLH VOH 1.5 V tpHL VOL Figure 2 tpLH, tpHL tr Output Enable ( OE ) 2.5 ns tf 90% 1.5 V 2.5 ns 2.7 V 10% GND tpLZ Output (An, Bn) Low to Off to Low tpHZ Output (An, Bn) High to Off to High Outputs enabled tpZL 3.0 V 1.5 V VOL + 0.3 V VOH - 0.3 V 1.5 V GND Outputs disabled Outputs enabled tpZH VOL VOH Figure 3 tpLZ, tpHZ, tpZL, tpZH 2000-07-04 6/7 TC7MZ245FK Package Dimensions Weight: 0.03 g (typ.) 2000-07-04 7/7 |
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