TC7MBL3257AFT/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC7MBL3257AFT, TC7MBL3257AFK Quad 1-of-2 Multiplexer/Demultiplexer The TC7MBL3257A is high-speed CMOS quad 1-2 multiplexer/demultiplexer. The low on resistance of the switch allows connections to be made with minimal propagation delay time. This device consists of four individual two-inputs multiplexer/demultiplexer with common select input (S) and output enable ( OE ). The A inputs is connected to the B1 or B2 outputs determined by the combination both the select input (S) 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. TC7MBL3257AFT TC7MBL3257AFK Features • Operating voltage: VCC = 2.0 to 3.6 V • High speed: tpd = 0.31ns (max.) @ VCC =3.0V • Low on resistance: RON = 5 Ω (typ.) @ VCC =3.0V • ESD performance: Machine model ≥ ±200 V Human body model ≥ ±2000 V • Package: TSSOP16,VSSOP16 (US16) • Pin compatible with the 74xx257 type. Weight: TSSOP16-P-0044-0.65A VSSOP16-P-0030-0.50 : 0.06 g (typ.) : 0.02 g (typ.) Pin Assignment (top view) S 1 16 VCC 1B1 2 15 OE 1B2 3 14 4B1 1A 4 13 4B2 2B1 5 12 4A 2B2 6 11 3B1 2A 7 10 3B2 GND 8 9 3A 1 2008-09-01 TC7MBL3257AFT/FK Truth Table Inputs Function OE S L L A port = B1 port L H A port = B2 port H X Disconnect System Diagram 1A 4 2 3 2A 7 5 6 3A 9 11 10 4A 12 14 13 S OE 1B1 1B2 2B1 2B2 3B1 3B2 4B1 4B2 1 15 2 2008-09-01 TC7MBL3257AFT/FK Absolute Maximum Ratings (Note) Symbol Rating Unit Power supply range Characteristics VCC −0.5 to 4.6 V DC input voltage VIN −0.5 to 4.6 V DC switch voltage VS −0.5 to Vcc+0.5 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 to 150 °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) Characteristics Symbol Rating Unit Supply voltage VCC 2.0 to 3.6 V Input voltage VIN 0 to 3.6 V Switch voltage VS 0 to Vcc V Operating temperature Topr −40 to 85 °C Input rise and fall time dt/dv 0 to 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. Electrical Characteristics DC Characteristics (Ta = −40 to 85°C) Characteristics Symbol Test Condition “H” level VIH ⎯ “L” level VIL ⎯ Min Typ. Max 2.0 to 3.6 0.7 × VCC ⎯ ⎯ 2.0 to 3.6 ⎯ ⎯ 0.3 × VCC 2.0 to 3.6 ⎯ ⎯ ±1.0 μA 0 ⎯ ⎯ ±1.0 μA 2.0 to 3.6 ⎯ ⎯ ±1.0 μA 7 VCC (V) Input voltage Input leakage current ( OE , S) Power off leakage current Off-state leakage current (switch off) ON resistance (Note 2) Quiescent supply current IIN IOFF ISZ RON ICC 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 (Note 1) 3.0 ⎯ 5 VIS = 3.0 V, IIS = 30 mA (Note 1) 3.0 ⎯ 5 9 VIS = 2.4 V, IIS = 15 mA (Note 1) 3.0 ⎯ 6 15 VIS = 0 V, IIS = 24 mA (Note 1) 2.3 ⎯ 6 10 VIS = 2.3 V, IIS = 24 mA (Note 1) 2.3 ⎯ 6 15 3.6 ⎯ ⎯ 10 VIN = VCC or GND, IOUT = 0 Unit V Ω μA Note 1: All typical values are at 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. 3 2008-09-01 TC7MBL3257AFT/FK AC Characteristics (Ta = −40 to 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 Figure 1, Figure 2 (Note) Figure 1, Figure 2 Figure 1, Figure 3 Figure 1, Figure 3 Figure 1, Figure 3 Figure 1, Figure 3 Min Max 3.3 ± 0.3 ⎯ 0.31 2.5 ± 0.2 ⎯ 0.52 3.3 ± 0.3 ⎯ 11.0 2.5 ± 0.2 ⎯ 17.0 3.3 ± 0.3 ⎯ 11.0 2.5 ± 0.2 ⎯ 17.0 3.3 ± 0.3 ⎯ 20.0 2.5 ± 0.2 ⎯ 22.0 3.3 ± 0.3 ⎯ 20.0 2.5 ± 0.2 ⎯ 22.0 3.3 ± 0.3 ⎯ 20.0 2.5 ± 0.2 ⎯ 22.0 VCC (V) Unit ns ns ns ns ns 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 the source (zero output impedance). Capacitive Characteristics (Ta = 25°C) Characteristics Symbol Control pin input capacitance ( OE , S) CIN Switch terminal capacitance (B1, B2) CI/O Switch terminal capacitance (A) CI/O Test Condition VCC (V) Typ. Unit (Note) 3.0 3 pF OE = VCC (Note) 3.0 15 pF OE = VCC (Note) 3.0 26 pF Note: This parameter is guaranteed by design. 4 2008-09-01 TC7MBL3257AFT/FK AC Test Circuit RL Switch Open 2 × VCC GND Measure RL CL Output CL = 50 pF RL = 500 Ω Parameter Switch tpLH, tpHL Open tpLZ, tpZL 2 × VCC tpHZ, tpZH GND Figure 1 AC Waveform tf 2.5 ns tr 2.5 ns VCC 90% 50% Input (A, B) 10% GND VOH Output (B, A) 50% tpLH VOL tpHL Figure 2 tpLH, tpHL tf 2.5 ns tr 2.5 ns VCC 90% 50% Output Enable ( OE ) 10% tpLZ GND tpZL VOH Output (A, B) Low to Off to Low 50% 10% tpHZ VOL tpZH VOH 90% Output (A, B) High to Off to High 50% VOL Outputs enabled Outputs disabled Outputs enabled Figure 3 tpLZ, tpHZ, tpZL, tpZH 5 2008-09-01 TC7MBL3257AFT/FK Package Dimensions Weight: 0.06 g (typ.) 6 2008-09-01 TC7MBL3257AFT/FK Package Dimensions Weight: 0.02 g (typ.) 7 2008-09-01 TC7MBL3257AFT/FK RESTRICTIONS ON PRODUCT USE • Toshiba Corporation, and its subsidiaries and affiliates (collectively “TOSHIBA”), reserve the right to make changes to the information in this document, and related hardware, software and systems (collectively “Product”) without notice. • This document and any information herein may not be reproduced without prior written permission from TOSHIBA. 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