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TC7MBL3244AFK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MBL3244AFK
Octal Bus Switch
The TC7MBL3244AFK provides eight bits of low-voltage, high-speed bus switching in a standard '244 device pinout. The low ON-resistance of the switch allows connections to be made with minimal propagation delay and while maintaining CMOS low power dissipation. The device comprises two 4-bit low-impedance switches with separate output-enable ( OE ) inputs. When OE is low, the switch is on and data can flow from port A to port B, or vice versa. When OE is high, the switch is open and a high-impedance state exists between the two ports. All inputs are equipped with protection circuits to guard against static discharge.
Weight: 0.03 g (typ.)
Features
* * * * * * * Operating voltage: VCC = 2.0~3.6 V High speed: tpd = 0.31 ns (max) @ VCC = 3.0 V Low ON-resistance: RON = 5 (typ.) @ VCC = 3.0 V ESD performance: Machine model 200 V Human body model 2000 V Power-down protection for inputs ( OE input only) Package: VSSOP (US20) Pin compatible with the 74xx244 type
Pin Assignment (top view)
1OE 1A1 2B4 1A2 2B3 1A3 2B2 1A4 2B1
1 2 3 4 5 6 7 8 9
20 19 18 17 16 15 14 13 12 11 (top view)
VCC
2OE
1B1 2A4 1B2 2A3 1B3 2A2 1B4 2A1
GND 10
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Truth Table
Inputs OE L H Function A port = B port Disconnect
System Diagram
1A1
1B1
2A1
2B1
1A4
1B4
2A4
2B4
1OE
2OE
Absolute Maximum Ratings (Note)
Characteristic Power supply range Control pin input voltage Switch terminal I/O voltage Clump diode current Switch I/O current Power dissipation DC VCC/GND current Storage temperature Control input pin Switch terminal Symbol VCC VIN VS IIK IS PD ICC/IGND Tstg Rating -0.5~4.6 -0.5~4.6 -0.5~Vcc+0.5 -50 50 128 180 100 -65~150 Unit V V V mA mA mW mA C
Note: Exceeding any of the absolute maximum ratings, even briefly, may 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)
Characteristic Power supply voltage Control pin input voltage Switch I/O voltage Operating temperature Input rise and fall time Symbol VCC VIN VS Topr dt/dv Rating 2.0~3.6 0~3.6 0~Vcc -40~85 0~10 Unit V V V C 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.
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Electrical Characteristics DC Characteristics (Ta = -40 to 85C)
Characteristic High-level control input voltage Low-level control input voltage Control input current Power off leakage current Off-stage leakage current (switch off) Symbol VIH VIL IIN IOFF ISZ VIN = 0 to 3.6 V OE = 0 to 3.6 V A, B = 0 to VCC, OE = VCC VIS = 0 V, IIS = 30 mA VIS = 3.0 V, IIS = 30 mA Switch ON-resistance (Note 2) RON VIS = 2.4 V, IIS = 15 mA VIS = 0 V, IIS = 24 mA VIS = 2.3 V, IIS = 24 mA Quiescent supply current ICC VIN = VCC or GND, IOUT = 0 (Note 1) (Note 1) (Note 1) (Note 1) (Note 1) Test Condition VCC (V) 2.0 to 3.6 2.0 to 3.6 2.0 to 3.6 0 2.0 to 3.6 3.0 3.0 3.0 2.3 2.3 3.6 Min 0.7 x VCC Typ. 2 3 5 3 4 Max 0.3 x VCC 1.0 1.0 1.0 7 9 20 10 15 10 A V Unit
A A A
Note 1: All typical values are at Ta = 25C. Note 2: Measured by voltage drop between A and B pins at indicated current through the switch. ON-resistance is determined by the lower of the voltages on the two pins (A or B).
AC Characteristics (Ta = -40 to 85C)
Characteristic Propagation delay (bus to bus) Symbol tpLH tpHL tpZL tpZH tpLZ tpHZ Test Condition Figure 1, Figure 2 (Note) VCC (V) 3.3 0.3 2.5 0.2 3.3 0.3 2.5 0.2 3.3 0.3 2.5 0.2 Min Max 0.31 0.52 6 7.5 6 7.5 Unit ns
Output enable time
Figure 1, Figure 3
ns
Output disable time
Figure 1, Figure 3
ns
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 from the source (zero output impedance).
Capacitance (Ta = 25C)
Characteristic Control input capacitance Switch terminal capacitance Symbol CIN CI/O OE = VCC Test Condition (Note) (Note) VCC (V) 3.0 3.0 Typ. 3 17 Unit pF pF
Note: This parameter is guaranteed by design.
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AC Test Circuit
Open 7.0 V GND Measure CL = 50 pF RL = 500 CL RL
Switch RL
Parameter tpLH, tpHL tpLZ, tpZL tpHZ, tpZH
Switch Open 2 x VCC GND
Output
Figure 1 AC Waveforms
tr 2.5 ns Input (A, B) tf 2.5 ns 90% 50% 10% VCC GND VOH 50% tpLH tpHL VOL
Output (B, A)
Figure 2 tpLH, tpHL
tr 2.5 ns Output Enable ( OE ) tpLZ Output (A, B) Low to Off to Low tpHZ Output (A, B) High to Off to High Outputs enabled 90%
tf 2.5 ns 90% 50% 10% tpZL VOH 50% 10% tpZH VOL VOH 50% VOL Outputs disabled Outputs enabled VCC GND
Figure 3 tpLZ, tpHZ, tpZL, tpZH
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Package Dimensions
Weight: 0.03 g (typ.)
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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.
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