TC74VHC138F(EL,K,F

TC74VHC138F/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74VHC138F, TC74VHC138FK 3-to-8 Line Decoder The TC74VHC138 is an advanced high speed CMOS 3-to-8 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 - 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. An input protection circuit ensures that 0 to 5.5 V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5 V to 3 V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages. Features TC74VHC138F TC74VHC138FK Weight SOP16-P-300-1.27A VSSOP16-P-0030-0.50  High speed: tpd = 5.7 ns (typ.) at VCC = 5 V  Low power dissipation: ICC = 4 μA (max) at Ta = 25°C : 0.18 g (typ.) : 0.02 g (typ.)  High noise immunity: VNIH = VNIL = 28% VCC (min)  Power down protection is provided on all inputs.  Balanced propagation delays: tpLH ∼ − tpHL  Wide operating voltage range: VCC (opr) = 2 V to 5.5 V  Pin and function compatible with 74ALS138 Start of commercial production 1991-11 © 2019 Toshiba Electronic Devices & Storage Corporation 1 2019-01-31 TC74VHC138F/FK 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 & EN (15) (14) (13) (12) (11) (10) (9) (7) 0 1 2 3 4 5 6 7 (1) (2) (3) A B C 0 (15) (14) (13) (12) (11) (10) (9) (7) 0 1 2 3 4 5 6 7 2 & (6) (4) (5) G1 DMUX Truth Table Inputs Outputs Enable Select Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Selected Output G1 G2 A G 2B 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 TC74VHC138F/FK Logic Diagram 15 A Select inputs B C 14 1 13 12 2 Data outputs 11 10 3 9 7 4 Enable inputs 5 G1 6 Absolute Maximum Ratings (Note) 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 VCC + 0.5 V Input diode current IIK −20 mA Output diode current IOK ±20 mA 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 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 Supply voltage Input voltage Output voltage Operating temperature Input rise and fall time Note: Symbol Rating Unit VCC 2.0 to 5.5 V VIN 0 to 5.5 V VOUT 0 to VCC V Topr −40 to 85 °C dt/dv 0 to 100 (VCC = 3.3 ± 0.3 V) 0 to 20 (VCC = 5 ± 0.5 V) ns/V The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must be tied to either VCC or GND. © 2019 Toshiba Electronic Devices & Storage Corporation 3 2019-01-31 TC74VHC138F/FK Electrical Characteristics DC Characteristics Characteristics Symbol Ta = −40 to 85°C Ta = 25°C Test Condition VCC (V) Min Typ. Max Min Max Unit High-level input voltage VIH ― 2.0 3.0 to 5.5 1.50 VCC × 0.7 ― ― ― ― 1.50 VCC × 0.7 ― ― V Low-level input voltage VIL ― 2.0 3.0 to 5.5 ― ― ― ― 0.50 VCC × 0.3 ― ― 0.50 VCC × 0.3 V 2.0 3.0 4.5 1.9 2.9 4.4 2.0 3.0 4.5 ― ― ― 1.9 2.9 4.4 ― ― ― IOH = −4 mA IOH = −8 mA 3.0 4.5 2.58 3.94 ― ― ― ― 2.48 3.80 ― ― IOL = 50 μA 2.0 3.0 4.5 ― ― ― 0.0 0.0 0.0 0.1 0.1 0.1 ― ― ― 0.1 0.1 0.1 3.0 4.5 ― ― ― ― 0.36 0.36 ― ― 0.44 0.44 High-level output voltage Low-level output voltage IOH = −50 μA VOH VOL VIN = VIH or VIL VIN = VIH or VIL IOL = 4 mA IOL = 8 mA V V Input leakage current IIN VIN = 5.5 V or GND 0 to 5.5 ― ― ±0.1 ― ±1.0 μA Quiescent supply current ICC VIN = VCC or GND 5.5 ― ― 4.0 ― 40.0 μA © 2019 Toshiba Electronic Devices & Storage Corporation 4 2019-01-31 TC74VHC138F/FK AC Characteristics (input: tr = tf = 3 ns) Characteristics Propagation delay time (A, B, C- Y ) Propagation delay time (G1- Y ) Propagation delay time ( G2 - Y ) tpLH tpHL tpLH tpHL tpLH tpHL Input capacitance CIN Power dissipation capacitance CPD VCC (V) Ta = −40 to 85°C Ta = 25°C Test Condition Symbol Unit CL (pF) Min Typ. Max Min Max 15 ― 8.2 11.4 1.0 13.5 50 ― 10.0 15.8 1.0 18.0 15 ― 5.7 8.1 1.0 9.5 50 ― 7.2 10.1 1.0 11.5 15 ― 8.1 12.8 1.0 15.0 50 ― 10.6 16.3 1.0 18.5 15 ― 5.6 8.1 1.0 9.5 50 ― 7.1 10.1 1.0 11.5 15 ― 8.2 11.4 1.0 13.5 50 ― 10.7 14.9 1.0 17.0 15 ― 5.8 8.1 1.0 9.5 50 ― 7.3 10.1 1.0 11.5 ― 4 10 ― 10 pF ― 34 ― ― ― pF 3.3 ± 0.3 ― 5.0 ± 0.5 3.3 ± 0.3 ― 5.0 ± 0.5 3.3 ± 0.3 ― 5.0 ± 0.5 ― (Note) ns ns 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 Input Equivalent Circuit INPUT © 2019 Toshiba Electronic Devices & Storage Corporation 5 2019-01-31 TC74VHC138F/FK Package Dimensions Weight: 0.18 g (typ.) © 2019 Toshiba Electronic Devices & Storage Corporation 6 2019-01-31 TC74VHC138F/FK Package Dimensions Weight: 0.02 g (typ.) © 2019 Toshiba Electronic Devices & Storage Corporation 7 2019-01-31 TC74VHC138F/FK RESTRICTIONS ON PRODUCT USE Toshiba Corporation and its subsidiaries and affiliates are collectively referred to as “TOSHIBA”. Hardware, software and systems described in this document are collectively referred to as “Product”. • TOSHIBA reserves the right to make changes to the information in this document and related Product without notice. • This document and any information herein may not be reproduced without prior written permission from TOSHIBA. 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