74lcx138 STMicroelectronics, 74lcx138 Datasheet

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... July 2006 = Description The 74LCX138 is a low voltage CMOS line decoder (inverting) fabricated with sub-micron silicon gate and double-layer metal wiring C technology ideal for low power and high speed 3.3V applications; it can be interfaced to 5V signal environment for inputs. ...

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... Contents Contents 1 Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4 Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 74LCX138 ...

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... Logic symbols and I/O equivalent circuit Figure 1. IEC logic symbols Figure 2. Input and output equivalent circuit Logic symbols and I/O equivalent circuit 3/17 ...

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... Pin connection (top through view) 2.2 Pin description Table 1. Pin description Pin N° 15, 14, 13, 12, 11, 10 4/17 Symbol Name and function Address inputs G2A, G2B Enable inputs G1 Enable input Outputs GND Ground (0V) V Positive supply voltage CC 74LCX138 ...

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... Truth table Table 2. Truth table Inputs Enable G2B G2A Note not care 2.4 Logic diagram Figure 4. Logic diagram Note: This logic diagram has not to be used to estimate propagation delays ...

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... Operating temperature op dt/dv Input rise and fall time 1. Truth table guaranteed: 1. from 0. 6/17 Parameter = 0V) CC (1) (2) Parameter ( 3.0 to 3.6V 2.7V) CC (2) = 3.0V CC 74LCX138 Value Unit -0.5 to +7.0 V -0.5 to +7.0 V -0.5 to +7 -50 mA -50 mA ± ± 100 mA ± 100 mA -65 to +150 °C 300 ° ...

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... Electrical characteristics Table 5. DC specifications Symbol V High level input voltage IH V Low level input voltage IL V High level output voltage OH V Low level output voltage OL I Input leakage current I Power OFF leakage I off current I Quiescent supply current CC ∆I I incr. per Input CC Table 6 ...

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... CC(opr Value - ° (Ω) (ns) Min 500 2.5 1.5 500 2.5 1.5 500 2.5 1.5 500 2 OSLH PLHm Value °C A Min Typ 10MHz 74LCX138 Unit Max 7.9 ns 6.7 6.4 ns 5.8 7.4 ns 6.5 1 PLHn Unit Max pF pF ...

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... Test circuit Figure 5. Test circuit C = 50pF or equivalent (includes jig and probe capacitance) L Ω 500 or equivalent pulse generator (typically 50 T OUT Ω ) Test circuit 9/17 ...

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... Waveforms 6 Waveforms Figure 6. Propagation delay for inverting outputs (f = 1MHz; 50% duty cycle) Figure 7. Propagation delay for non-inverting outputs (f = 1MHz; 50% duty cycle) 10/17 74LCX138 ...

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... Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect . The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...

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... 12/17 SO-16 MECHANICAL DATA mm. MIN. TYP MAX. 1.75 0.1 0.25 1.64 0.35 0.46 0.19 0.25 0.5 9.8 10 5.8 6.2 1.27 8.89 3.8 4.0 4.6 5.3 0.5 1.27 0.62 inch MIN. TYP. 0.004 0.013 0.007 0.019 45° (typ.) 0.385 0.228 0.050 0.350 0.149 0.181 0.019 8° (max.) 0016020D 74LCX138 MAX. 0.068 0.010 0.063 0.018 0.010 0.393 0.244 0.157 0.208 0.050 0.024 ...

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... DIM PIN 1 IDENTIFICATION TSSOP16 MECHANICAL DATA mm. MIN. TYP MAX. 1.2 0.05 0.15 0.8 1 1.05 0.19 0.30 0.09 0.20 4.9 5 5.1 6.2 6.4 6.6 4.3 4.4 4.48 0.65 BSC 0˚ 8˚ 0.45 0.60 0. Package mechanical data inch MIN. TYP. 0.002 0.004 0.031 0.039 0.007 0.004 0.193 0.197 0.244 0.252 0.169 0.173 0.0256 BSC 0˚ ...

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... Package mechanical data DIM 14/17 Tape & Reel SO-16 MECHANICAL DATA mm. MIN. TYP MAX. 330 12.8 13.2 20.2 60 22.4 6.45 6.65 10.3 10.5 2.1 2.3 3.9 4.1 7.9 8.1 74LCX138 inch MIN. TYP. MAX. 12.992 0.504 0.519 0.795 2.362 0.882 0.254 0.262 0.406 0.414 0.082 0.090 0.153 0.161 0.311 0.319 ...

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... DIM Tape & Reel TSSOP16 MECHANICAL DATA mm. MIN. TYP MAX. 330 12.8 13.2 20.2 60 22.4 6.7 6.9 5.3 5.5 1.6 1.8 3.9 4.1 7.9 8.1 Package mechanical data inch MIN. TYP. MAX. 12.992 0.504 0.519 0.795 2.362 0.882 0.264 0.272 0.209 0.217 0.063 0.071 0.153 0.161 0.311 0.319 15/17 ...

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... Revision history 8 Revision history Table 9. Revision history Date 15-Sep-2004 26-Jul-2006 16/17 Revision 4 Ordering Codes Revision - pag New template, temperature ranges updated 74LCX138 Changes ...

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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...