TC74VHCT138AFK(E,K

TC74VHCT138AF/AFK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHCT138AF, TC74VHCT138AFK 3-to-8 Line Decoder TC74VHCT138AF The TC74VHCT138 is an advanced high speed CMOS 3-to-8 LINE DECODER fabricated with silicon gate C2MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. When the device is enabled, 3 Binary Select inputs (A, B and C) determine which one of the outputs ( Y0 to Y7 ) will go low. When enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all outputs go high. G1, G2A , and G2B inputs are provided to ease cascade connection and for use as an address decoder for memory systems. The input voltage are compatible with TTL output voltage. This device may be used as a level converter for interfacing 3.3 V to 5 V system. Input protection and output circuit ensure that 0 to 5.5 V can be applied to the input and output (Note) pins without regard to the supply voltage. These structure prevents device destruction due to mismatched supply and input/output voltages such as battery back up, hot board insertion, etc. Note: VCC = 0 V TC74VHCT138AFK Weight SOP16-P-300-1.27A VSSOP16-P-0030-0.50 Features : 0.18 g (typ.) : 0.02 g (typ.)  High speed: tpd = 7.6 ns (typ.) at VCC = 5 V  Low power dissipation: ICC = 4 μA (max) at Ta = 25°C  Compatible with TTL inputs: VIL = 0.8 V (max) VIH = 2.0 V (min)  Power down protection is provided on all inputs and outputs  Balanced propagation delays: tpLH ≈ tpHL  Pin and function compatible with the 74 series (74AC/HC/F/ALS/LS etc.) 138 type. Start of commercial production 1995-12 © 2019 Toshiba Electronic Devices & Storage Corporation 1 2019-01-31 TC74VHCT138AF/AFK Pin Assignment A 1 16 B 2 15 C 3 14 4 13 5 12 6 11 7 10 8 9 G1 GND VCC (top view) IEC Logic Symbol A B C G1 (1) (2) (3) (6) (4) (5) BIN/OCT 1 2 4 (15) (14) (13) (12) (11) (10) (9) (7) 0 1 2 3 4 5 6 7 & EN DMUX (1) (2) (3) A B C 0 2 & (6) (4) (5) G1 (15) (14) (13) (12) (11) (10) (9) (7) 0 1 2 3 4 5 6 7 Truth Table Inputs Outputs Enable Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Selected Output Select G1 G2 A G2B C B A L X X X X X H H H H H H H H None X H X X X X H H H H H H H H None X X H X X X H H H H H H H H None H L L L L L L H H H H H H H Y0 H L L L L H H L H H H H H H Y1 H L L L H L H H L H H H H H Y2 H L L L H H H H H L H H H H Y3 H L L H L L H H H H L H H H Y4 H L L H L H H H H H H L H H Y5 H L L H H L H H H H H H L H Y6 H L L H H H H H H H H H H L Y7 X: Don’t care © 2019 Toshiba Electronic Devices & Storage Corporation 2 2019-01-31 TC74VHCT138AF/AFK System Diagram 15 14 A 1 13 12 Select inputs B 2 Data outputs 11 10 C 3 9 7 4 Enable inputs 5 G1 6 Absolute Maximum Ratings (Note 1) Characteristics Symbol Rating Unit Supply voltage range VCC −0.5 to 7.0 V DC input voltage VIN −0.5 to 7.0 V DC output voltage VOUT −0.5 to 7.0 (Note 2) −0.5 to VCC + 0.5 (Note 3) V Input diode current IIK −20 Output diode current IOK ±20 DC output current IOUT ±25 mA DC VCC/ground current ICC ±75 mA Power dissipation PD 180 mW Storage temperature Tstg −65 to 150 °C mA (Note 4) mA Note 1: 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). Note 2: VCC = 0 V Note 3: High or low state. IOUT absolute maximum rating must be observed. Note 4: VOUT  GND, VOUT  VCC © 2019 Toshiba Electronic Devices & Storage Corporation 3 2019-01-31 TC74VHCT138AF/AFK Operating Ranges (Note 1) Characteristics Symbol Rating Unit Supply voltage VCC 4.5 to 5.5 V Input voltage VIN 0 to 5.5 V Output voltage VOUT 0 to 5.5 (Note 2) 0 to VCC (Note 3) V Operating temperature Topr −40 to 85 °C Input rise and fall time dt/dV 0 to 20 ns/V Note 1: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. Note 2: VCC = 0 V Note 3: High or low state Electrical Characteristics DC Characteristics Test Condition Characteristics Ta = −40 to 85°C Ta = 25°C Symbol VCC (V) Min Typ. Max Min Max Unit High-level input voltage VIH ― 4.5 to 5.5 2.0 ― ― 2.0 ― V Low-level input voltage VIL ― 4.5 to 5.5 ― ― 0.8 ― 0.8 V High-level output voltage IOH = −50 μA VIN = VIH or VIL I OH = −8 mA 4.5 4.40 4.50 ― 4.40 ― VOH 4.5 3.94 ― ― 3.80 ― Low-level output voltage IOL = 50 μA VIN = VIH or VIL I = 8 mA OL 4.5 ― 0.0 0.1 ― 0.1 VOL 4.5 ― ― 0.36 ― 0.44 Input leakage current Quiescent supply current Output leakage current (Power-OFF) V V IIN VIN = 5.5 V or GND 0 to 5.5 ― ― ±0.1 ― ±1.0 μA ICC VIN = VCC or GND 5.5 ― ― 4.0 ― 40.0 μA ICCT Per input: VIN = 3.4 V Other input: VCC or GND 5.5 ― ― 1.35 ― 1.50 mA IOPD VOUT = 5.5 V 0 ― ― 0.5 ― 5.0 μA © 2019 Toshiba Electronic Devices & Storage Corporation 4 2019-01-31 TC74VHCT138AF/AFK AC Characteristics (input: tr = tf = 3 ns) Test Condition Characteristics Unit VCC (V) Propagation delay time (A, B, C- Y ) tpLH tpHL ― Propagation delay time (G1- Y ) tpLH tpHL ― Propagation delay time ( G2 - Y ) tpLH tpHL ― Input capacitance CIN Power dissipation capacitance CPD Note: Ta = −40 to 85°C Ta = 25°C Symbol CL (pF) Min Typ. Max Min Max 15 ― 7.6 10.4 1.0 12.0 50 ― 8.1 11.4 1.0 13.0 15 ― 6.6 9.1 1.0 10.5 50 ― 7.1 10.1 1.0 11.5 15 ― 7.0 9.6 1.0 11.0 50 ― 7.5 10.6 1.0 12.0 ― 4 10 ― 10 pF ― 49 ― ― ― pF 5.0 ± 0.5 ns 5.0 ± 0.5 ns 5.0 ± 0.5 ns ― (Note) 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 © 2019 Toshiba Electronic Devices & Storage Corporation 5 2019-01-31 TC74VHCT138AF/AFK Package Dimensions Weight: 0.18 g (typ.) © 2019 Toshiba Electronic Devices & Storage Corporation 6 2019-01-31 TC74VHCT138AF/AFK Package Dimensions Weight: 0.02 g (typ.) © 2019 Toshiba Electronic Devices & Storage Corporation 7 2019-01-31 TC74VHCT138AF/AFK RESTRICTIONS ON PRODUCT USE Toshiba Corporation and its subsidiaries and affiliates are collectively referred to as “TOSHIBA”. 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