TC7MB3251FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7MB3251FK 1-of-8 FET Multiplexer/Demultiplexer The TC7MB3251FK is high-speed CMOS 1-8 multiplexer/demultiplexer. The low on resistance of the switch allows connections to be made with minimal propagation delay time. This device is 1 to 8 multiplexer/demultiplexer controlled by the combination of select inputs (S0, S1, S2) and output enable (OE). The A inputs is connected to the corresponded B1~B8 outputs determined by the combination both the select inputs (S0, S1, S2) and output enable (OE). When the output enable (OE) input is held “H” level, the switches are open with regardless the state of select inputs and a high-impedance state exists between the switches. All inputs are equipped with protection circuits against static discharge. Features • Weight: 0.02 g (typ.) Pin Assignment (top view) Operating voltage: VCC = 4.5~5.5 V • High speed: tpd = 0.25 ns (max) • Low on resistance: RON = 5 Ω (typ.) • ESD performance: Machine model ≥ ±200 V Human body model ≥ ±2000 V • Compatible with TTL outputs (control inputs) • Package: VSSOP (US16) • Pin compatible with the 74xx251 type. Functionally equivalent to (FST/CBT) 3251. 1 B4 1 16 VCC B3 2 15 B5 B2 3 14 B6 B1 4 13 B7 A 5 12 B8 NC 6 11 S0 OE 7 10 S1 GND 8 9 S2 2007-10-19 TC7MB3251FK Truth Table Inputs Function OE S2 S1 S0 L L L L A port = B1 port L L L H A port = B2 port L L H L A port = B3 port L L H H A port = B4 port L H L L A port = B5 port L H L H A port = B6 port L H H L A port = B7 port L H H H A port = B8 port H X X X Disconnect System Diagram A 5 4 3 2 1 15 14 13 12 OE S0 S1 S2 B1 B2 B3 B4 B5 B6 B7 B8 7 11 10 9 2 2007-10-19 TC7MB3251FK Absolute Maximum Ratings (Note) Characteristics Symbol Rating Unit Power supply range VCC −0.5~7.0 V DC input voltage VIN −0.5~7.0 V DC switch voltage VS −0.5~7.0 V Input diode current IIK −50 mA Continuous channel current IS 128 mA Power dissipation PD 180 mW DC VCC/GND current ICC/IGND ±100 mA Storage temperature Tstg −65~150 °C Note: 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). Operating Ranges (Note) Characteristics Symbol Rating Unit Supply voltage VCC 4.5~5.5 V Input voltage ( OE , S) VIN 0~5.5 V Switch voltage VS 0~5.5 V Operating temperature Topr −40~85 °C Input rise and fall time dt/dv 0~10 ns/V Note: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. 3 2007-10-19 TC7MB3251FK Electrical Characteristics DC Characteristics (Ta = −40~85°C) Characteristics Input voltage Min Typ. (Note 1) 4.5~5.5 2.0 ⎯ ⎯ 4.5~5.5 ⎯ ⎯ 0.8 4.5~5.5 ⎯ ⎯ ±1.0 μA 0 ⎯ ⎯ ±1.0 μA 4.5~5.5 ⎯ ⎯ ±1.0 μA IIS = 64 mA 4.5 ⎯ 5 7 IIS = 30 mA 4.5 ⎯ 5 7 VIS = 2.4 V, IIS = 15 mA 4.5 ⎯ 10 15 VIN = VCC or GND, IOUT = 0 5.5 ⎯ ⎯ 10 μA VIN = 3.4 V (one input) 5.5 ⎯ ⎯ 2.5 mA Symbol Test Condition “H” level VIH ⎯ “L” level VIL ⎯ Input leakage current ( OE , S) IIN Power off leakage current IOFF Off-state leakage current (switch off) ISZ ON resistance (Note 2) Increase in ICC per input RON ICC ΔICC VCC (V) VIN = 0~5.5 V A, B, OE = 0~5.5 V A, B = 0~5.5 V, OE = VCC VIS = 0 V Max Unit V Ω Note 1: Typical values are at VCC = 5 V, Ta = 25°C. Note 2: Measured by the voltage drop between A and B pins at the indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A or B) pins. AC Characteristics (Ta = −40~85°C) Characteristics Symbol Propagation delay time tpLH (bus to bus) tpHL Propagation delay time tpLH (S to bus) tpHL Output enable time tpZL ( OE to bus) tpZH Output enable time tpZL (S to bus) tpZH Output disable time tpLZ ( OE to bus) tpHZ Output disable time tpLZ (S to bus) tpHZ Test Condition Min Max Unit 4.5 ⎯ 0.25 ns Figure 1, Figure 2 4.5 ⎯ 6.0 ns Figure 1, Figure 3 4.5 ⎯ 5.6 ns Figure 1, Figure 3 4.5 ⎯ 5.6 ns Figure 1, Figure 3 4.5 ⎯ 6.4 ns Figure 1, Figure 3 4.5 ⎯ 6.4 ns Figure 1, Figure 2 VCC (V) (Note) Note: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical on resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage the source (zero output impedance). Capacitive Characteristics (Ta = 25°C) Characteristics Symbol Control pin input capacitance ( OE , S) CIN Switch terminal capacitance (B1~8) CI/O Switch terminal capacitance (A) CI/O Test Condition VCC (V) Typ. Unit (Note) 5.0 3 pF OE = VCC (Note) 5.0 10 pF OE = VCC (Note) 5.0 59 pF Note: This parameter is guaranteed by design. 4 2007-10-19 TC7MB3251FK AC Test Circuit RL Switch Open 7.0 V GND Measure RL CL Output CL = 50 pF RL = 500 Ω Parameter Switch tpLH, tpHL Open tpLZ, tpZL 7.0 V tpHZ, tpZH Open Figure 1 AC Waveform tf 2.5 ns tr 2.5 ns 3.0 V 90% 1.5 V Input 10% GND VOH Output 1.5 V tpLH, tpHL VOL tpHL, tpLH Figure 2 tpLH, tpHL tf 2.5 ns tr 2.5 ns 3.0 V 90% 1.5 V Output Enable ( OE , S) 10% tpLZ GND tpZL 3.5 V Output (A, B) Low to Off to Low 1.5 V tpHZ VOL + 0.3 V VOH − 0.3 V Output (A, B) High to Off to High VOL tpZH VOH 1.5 V GND Outputs enabled Outputs disabled Outputs enabled Figure 3 tpLZ, tpHZ, tpZL, tpZH 5 2007-10-19 TC7MB3251FK Package Dimensions Weight: 0.02 g (typ.) 6 2007-10-19 TC7MB3251FK RESTRICTIONS ON PRODUCT USE 20070701-EN GENERAL • The information contained herein is subject to change without notice. • 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. 7 2007-10-19