Микросхемотехника / amelina_m_a_amelin_s_a_programma_shemotehnicheskogo_modeliro

ɦɨɞɟɥɶ ɫɨɞɟɪɠɢɬ ɜɨɥɶɬɚɦɩɟɪɧɵɟ ɯɚɪɚɤɬɟɪɢɫɬɢɤɢ, ɫɨɜɨɤɭɩɧɨɟ ɜɥɢɹɧɢɟ ɩɚɪɚ- ɡɢɬɧɵɯ ɩɚɪɚɦɟɬɪɨɜ, ɡɚɳɢɬɧɵɟ ɮɭɧɤɰɢɢ ɞɥɹ ɛɭɮɟɪɨɜ ɜɜɨɞɚ-ɜɵɜɨɞɚ.

ɉɨɫɤɨɥɶɤɭ Micro-Cap ɫɨɞɟɪɠɢɬ ɬɚɤ ɧɚɡɵɜɚɟɦɵɣ IBIS-ɬɪɚɧɫɥɹɬɨɪ, ɤɨɬɨɪɵɣ ɤɨɧɜɟɪɬɢɪɭɟɬ IBIS-ɮɚɣɥɵ ɜ SPICE-ɛɢɛɥɢɨɬɟɤɢ, ɧɚɢɛɨɥɟɟ ɩɪɨɫɬɨɣ ɫɩɨɫɨɛ ɢɫ- ɩɨɥɶɡɨɜɚɧɢɹ IBIS-ɦɨɞɟɥɟɣ ɜ ɫɯɟɦɟ — ɢɫɩɨɥɶɡɨɜɚɬɶ ɫɩɟɰɢɚɥɶɧɵɟ IBIS-

ɤɨɦɩɨɧɟɧɬɵ, ɧɚɯɨɞɹɳɢɟɫɹ ɜ ɪɚɡɞɟɥɟ Components>Analog Primitives>IBIS (ɜ

ɦɟɧɸ ɤɨɦɩɨɧɟɧɬɨɜ).

ȼɤɥɸɱɟɧɢɟ ɨɞɧɨɝɨ ɢɡ ɞɚɧɧɵɯ IBIS-ɤɨɦɩɨɧɟɧɬɨɜ ɜ ɩɪɢɧɰɢɩɢɚɥɶɧɭɸ ɫɯɟɦɭ ɩɪɢɝɥɚɲɚɟɬ ɞɢɚɥɨɝɨɜɨɟ ɨɤɧɨ ɫɨɡɞɚɧɢɹ IBIS-ɦɨɞɟɥɟɣ (IBIS Model Creator, ɫɦ. ɪɢɫ. 12.5), ɤɨɬɨɪɨɟ ɩɨɡɜɨɥɹɟɬ ɜɵɛɪɚɬɶ ɨɩɪɟɞɟɥɟɧɧɵɣ ɜɵɜɨɞ ɦɢɤɪɨɫɯɟɦɵ ɜ ɭɤɚɡɚɧɧɨɦ IBIS-ɮɚɣɥɟ. ɉɨɫɥɟ ɷɬɨɝɨ ɫɨɡɞɚɟɬɫɹ ɦɨɞɟɥɶ ɜ ɜɢɞɟ SPICE- ɩɨɞɫɯɟɦɵ ɞɥɹ ɜɵɛɪɚɧɧɨɝɨ ɜɵɜɨɞɚ ɢɡ ɢɧɮɨɪɦɚɰɢɢ, ɫɨɞɟɪɠɚɳɟɣɫɹ ɜ IBIS- ɮɚɣɥɟ. ɗɬɚ ɦɨɞɟɥɶ ɜ ɜɢɞɟ ɩɨɞɫɯɟɦɵ ɧɚ ɹɡɵɤɟ SPICE ɡɚɩɢɫɵɜɚɟɬɫɹ ɜ ɬɟɤɫɬɨ- ɜɭɸ ɫɬɪɚɧɢɰɭ Models ɬɟɤɭɳɟɝɨ ɫɯɟɦɧɨɝɨ ɮɚɣɥɚ Micro-CAP ɧɟɩɨɫɪɟɞɫɬɜɟɧɧɨ ɜ ɬɨɬ ɦɨɦɟɧɬ, ɤɨɝɞɚ IBIS-ɤɨɦɩɨɧɟɧɬ ɩɨɦɟɳɚɟɬɫɹ ɜ ɫɯɟɦɭ.

ȼ ɩɪɨɝɪɚɦɦɟ Micro-Cap ɢɦɟɸɬɫɹ 4 ɜɫɬɪɨɟɧɧɵɯ IBIS-ɤɨɦɩɨɧɟɧɬɚ: IBIS_Input1 — ɦɨɞɟɥɶ ɜɯɨɞɧɨɝɨ ɛɭɮɟɪɚ ɫ ɜɧɭɬɪɟɧɧɢɦ ɢɫɬɨɱɧɢɤɨɦ ɩɢɬɚɧɢɹ; IBIS_Input3 — ɦɨɞɟɥɶ ɜɯɨɞɧɨɝɨ ɛɭɮɟɪɚ ɫ ɜɧɟɲɧɢɦ ɢɫɬɨɱɧɢɤɨɦ ɩɢɬɚɧɢɹ; IBIS_Output3 — ɦɨɞɟɥɶ ɜɵɯɨɞɧɨɝɨ ɛɭɮɟɪɚ ɫ ɜɧɭɬɪɟɧɧɢɦ ɢɫɬɨɱɧɢɤɨɦ ɩɢɬɚɧɢɹ; IBIS_Output5 — ɦɨɞɟɥɶ ɜɵɯɨɞɧɨɝɨ ɛɭɮɟɪɚ ɫ ɜɧɟɲɧɢɦ ɢɫɬɨɱɧɢɤɨɦ ɩɢɬɚɧɢɹ. Ⱦɥɹ ɤɨɦɩɨɧɟɧɬɨɜ IBIS_Input1 ɢ IBIS_Output3, ɢɫɬɨɱɧɢɤ ɩɢɬɚɧɢɹ ɫɨɡɞɚɟɬɫɹ

ɜɧɭɬɪɢ ɩɨɞɫɯɟɦɵ ɫ ɢɫɩɨɥɶɡɨɜɚɧɢɟɦ ɧɚɩɪɹɠɟɧɢɣ ɩɢɬɚɧɢɹ, ɭɤɚɡɚɧɧɵɯ ɜ IBIS- ɮɚɣɥɟ. Ⱦɥɹ ɤɨɦɩɨɧɟɧɬɨɜ IBIS_Input3 ɢ IBIS_Output5, ɢɫɬɨɱɧɢɤɢ ɩɢɬɚɧɢɹ ɞɨ-

ɛɚɜɥɹɸɬɫɹ ɩɨɥɶɡɨɜɚɬɟɥɟɦ ɩɭɬɟɦ ɩɨɞɫɨɟɞɢɧɟɧɢɹ ɤ ɫɨɨɬɜɟɬɫɬɜɭɸɳɢɦ ɜɵɜɨɞɚɦ ɤɨɦɩɨɧɟɧɬɚ.

ɉɟɪɜɵɣ ɲɚɝ ɜ ɢɫɩɨɥɶɡɨɜɚɧɢɢ IBIS-ɤɨɦɩɨɧɟɧɬɨɜ — ɩɨɥɭɱɟɧɢɟ ɩɨɞɯɨɞɹɳɟ- ɝɨ IBIS-ɮɚɣɥɚ ɨɬ ɢɡɝɨɬɨɜɢɬɟɥɹ ɦɢɤɪɨɫɯɟɦɵ. Ɍɚɤɢɟ ɮɚɣɥɵ ɨɛɵɱɧɨ ɪɚɡɦɟɳɚ- ɸɬɫɹ ɧɚ ɫɚɣɬɚɯ ɮɢɪɦ-ɩɪɨɢɡɜɨɞɢɬɟɥɟɣ, ɢ ɥɟɝɤɨ ɦɨɝɭɬ ɛɵɬɶ ɫɤɚɱɚɧɵ. Ⱦɥɹ ɪɚɫ- ɫɦɚɬɪɢɜɚɟɦɨɝɨ ɩɪɢɦɟɪɚ ɢɫɩɨɥɶɡɭɟɬɫɹ IBIS-ɮɚɣɥ ɨɬ NXP, ɤɨɬɨɪɵɣ ɫɨɞɟɪɠɢɬ IBIS-ɦɨɞɟɥɢ ɞɥɹ ɜɯɨɞɧɵɯ (ɜɵɯɨɞɧɵɯ) ɛɭɮɟɪɨɜ ɦɢɤɪɨɫɯɟɦɵ 74AHC00 (4 ɞɜɭɯ- ɜɯɨɞɨɜɵɯ ɷɥɟɦɟɧɬɚ ɂ-ɇȿ). ɋɚɦ IBIS-ɮɚɣɥ ɞɨɥɠɟɧ ɛɵɬɶ ɪɚɡɦɟɳɟɧ ɜ ɩɚɩɤɟ LIBRARY ɤɚɬɚɥɨɝɚ ɜ ɤɨɬɨɪɨɦ ɪɚɡɦɟɳɚɟɬɫɹ ɢɫɩɨɥɧɢɦɵɣ ɦɨɞɭɥɶ ɩɪɨɝɪɚɦɦɵ

Micro-Cap 9 (D:\Micro-Cap\LIBRARY).

ɋɥɟɞɭɸɳɢɣ ɲɚɝ — ɜɜɟɫɬɢ ɨɞɢɧ ɢɡ IBIS-ɤɨɦɩɨɧɟɧɬɨɜ ɜ ɫɯɟɦɭ. ȼ ɞɚɧɧɨɦ ɫɥɭɱɚɟ ɢɫɩɨɥɶɡɭɟɬɫɹ IBIS_Input3 ɤɨɦɩɨɧɟɧɬ, ɜɵɛɢɪɚɟɦɵɣ ɢɡ ɫɟɤɰɢɢ Analog Primitives>IBIS. ɉɨɫɥɟ ɜɫɬɚɜɤɢ IBIS-ɤɨɦɩɨɧɟɧɬɚ, ɩɨɹɜɥɹɟɬɫɹ ɞɢɚɥɨɝɨɜɨɟ ɨɤɧɨ ɫɨɡɞɚɧɢɹ IBIS-ɦɨɞɟɥɟɣ IBIS Model Creator, ɩɨɤɚɡɚɧɧɨɟ ɧɢɠɟ ɧɚ ɪɢɫɭɧɤɟ.

Ⱦɢɚɥɨɝɨɜɨɟ ɨɤɧɨ (ɪɢɫ. 12.5) ɢɦɟɟɬ ɫɥɟɞɭɸɳɢɟ ɪɚɡɞɟɥɵ:

Input File (ȼɯɨɞɧɨɣ ɮɚɣɥ): ȼ ɷɬɨɦ ɩɨɥɟ ɭɤɚɡɵɜɚɟɬɫɹ ɢɦɹ IBIS-ɮɚɣɥɚ. Ⱦɚɧɧɵɣ ɮɚɣɥ ɞɨɥɠɟɧ ɢɦɟɬɶ ɪɚɫɲɢɪɟɧɢɟ .IBS. Ʉɧɨɩɤɚ Browse ɢɫɩɨɥɶɡɭɟɬɫɹ ɞɥɹ ɧɚɯɨɠɞɟɧɢɹ ɜ ɤɚɬɚɥɨɝɚɯ ɪɚɡɥɢɱɧɵɯ ɜɯɨɞɧɵɯ IBIS-ɮɚɣɥɨɜ.

Add (Ⱦɨɛɚɜɥɟɧɢɟ): Ⱦɚɧɧɨɟ ɩɨɥɟ ɨɩɪɟɞɟɥɹɟɬ, ɤɚɤɢɟ ɜɟɥɢɱɢɧɵ ɜɯɨɞɧɨɝɨ IBIS-ɮɚɣɥɚ ɛɭɞɭɬ ɢɫɩɨɥɶɡɨɜɚɬɶɫɹ ɩɪɢ ɫɨɡɞɚɧɢɢ SPICE-ɦɨɞɟɥɢ — ɦɢɧɢɦɚɥɶ-

ɧɵɟ, ɬɢɩɨɜɵɟ ɢɥɢ ɦɚɤɫɢɦɚɥɶɧɵɟ (minimum, typical, maximum).

View By (ɉɨɤɚɡ): Ɉɩɪɟɞɟɥɹɟɬ, ɛɭɞɭɬ ɥɢ ɜ ɫɩɢɫɤɟ ɜɵɜɨɞɢɬɶɫɹ ɢɦɟɧɚ ɜɵɜɨ- ɞɨɜ, ɫɢɝɧɚɥɨɜ ɢɥɢ ɢɦɟɧ ɦɨɞɟɥɟɣ.

Ɋɢɫ. 12.5. Ⱦɢɚɥɨɝɨɜɨɟ ɨɤɧɨ IBIS Model Creator

Points (Ɍɨɱɤɢ ɞɚɧɧɵɯ): Ɉɩɪɟɞɟɥɹɟɬ ɤɨɥɢɱɟɫɬɜɨ ɬɨɱɟɤ ɞɚɧɧɵɯ, ɢɫɩɨɥɶɡɭɟ- ɦɵɯ IBIS-ɬɪɚɧɫɥɹɬɨɪɨɦ ɜ ɬɚɛɥɢɰɚɯ PWL (ɱɢɫɥɨ ɬɨɱɟɤ, ɨɩɪɟɞɟɥɹɸɳɢɯ ɩɨɥɢ- ɧɨɦɢɚɥɶɧɨ ɡɚɜɢɫɢɦɵɣ ɢɫɬɨɱɧɢɤ).

Show Warnings (ɉɨɤɚɡ ɩɪɟɞɭɩɪɟɠɞɚɸɳɢɯ ɫɨɨɛɳɟɧɢɣ). ȿɫɥɢ ɚɧɚɥɢɡɚɬɨɪ ɫɢɧɬɚɤɫɢɫɚ ɤɨɦɩɢɥɹɬɨɪɚ ɜɵɞɚɟɬ ɩɪɟɞɭɩɪɟɠɞɟɧɢɹ, ɭɫɬɚɧɨɜɤɚ ɞɚɧɧɨɝɨ ɮɥɚɝɚ ɨɩ- ɪɟɞɟɥɹɟɬ, ɛɭɞɭɬ ɥɢ ɩɟɱɚɬɚɬɶɫɹ ɩɪɟɞɭɩɪɟɠɞɚɸɳɢɟ ɫɨɨɛɳɟɧɢɹ ɜ ɨɤɧɟ ɫɨɨɛɳɟɧɢɣ.

Component: ȼɵɛɨɪ ɨɞɧɨɝɨ ɢɡ ɤɨɦɩɨɧɟɧɬɨɜ, ɫɨɞɟɪɠɚɳɢɯɫɹ ɜ ɮɚɣɥɟ. ɋɩɢɫɨɤ, ɚɧɚɥɨɝɢɱɟɧ ɩɨɤɚɡɚɧɧɨɦɭ ɧɚ ɪɢɫ. 12.1. ɋɩɢɫɨɤ ɫ ɜɵɜɨɞɚɦɢ ɦɢɤɪɨ-

ɫɯɟɦɵ, ɧɚɡɜɚɧɢɹɦɢ ɫɢɝɧɚɥɨɜ ɢ ɢɦɟɧɚɦɢ ɦɨɞɟɥɟɣ ɜ ɡɚɜɢɫɢɦɨɫɬɢ ɨɬ ɫɨɫɬɨɹɧɢɹ ɮɥɚɝɨɜ ɜ ɩɨɥɟ View By. ȼɵɛɨɪ ɨɞɧɨɣ ɢɥɢ ɧɟɫɤɨɥɶɤɢɯ ɩɨɡɢɰɢɣ ɜ ɷɬɨɦ ɫɩɢɫɤɟ ɩɪɢɜɨɞɢɬ ɤ ɩɨɤɚɡɭ ɢɯ ɜ ɨɤɧɟ IBIS (ɪɹɞɨɦ ɫɩɪɚɜɚ).

Ɉɤɧɨ IBIS, ɚɧɚɥɨɝɢɱɧɨ ɩɨɤɚɡɚɧɧɨɦɭ ɧɚ ɪɢɫ. 12.1. ɉɨɤɚɡɵɜɚɟɬ ɜɫɟ ɞɨɫɬɭɩ- ɧɵɟ IBIS-ɦɨɞɟɥɢ ɞɥɹ ɜɵɛɪɚɧɧɨɣ ɩɨɡɢɰɢɢ ɫɩɢɫɤɚ. ȼ ɷɬɨɦ ɨɤɧɟ ɜɵɛɢɪɚɟɬɫɹ ɛɭ- ɮɟɪ, ɞɥɹ ɤɨɬɨɪɨɝɨ ɛɭɞɟɬ ɫɨɡɞɚɜɚɬɶɫɹ ɦɨɞɟɥɶ.

ɍɩɪɚɜɥɟɧɢɟ ɝɪɚɮɢɤɚɦɢ, ɚɧɚɥɨɝɢɱɧɨ ɩɨɤɚɡɚɧɧɨɦɭ ɧɚ ɪɢɫ. 12.1. Ɏɥɚɝɢ ɜ ɩɪɚɜɨɦ ɜɟɪɯɧɟɦ ɭɝɥɭ (11 ɮɥɚɝɨɜ) ɩɨɡɜɨɥɹɸɬ ɩɨɫɦɨɬɪɟɬɶ ɫɨɨɬɜɟɬɫɬɜɭɸɳɢɟ ɝɪɚɮɢɤɢ ɫɢɝɧɚɥɚ ɜɵɛɪɚɧɧɨɝɨ ɛɭɮɟɪɚ, ɤɨɬɨɪɵɣ ɨɩɪɟɞɟɥɟɧ ɜɧɭɬɪɢ IBIS-ɮɚɣɥɚ.

Ɉɤɧɨ ɝɪɚɮɢɤɨɜ — ɦɟɫɬɨ, ɜ ɤɨɬɨɪɨɦ ɪɚɡɦɟɳɚɸɬɫɹ ɝɪɚɮɢɤɢ.

ɇɚ ɪɢɫɭɧɤɟ, ɩɪɢɜɟɞɟɧɧɨɦ ɜɵɲɟ, ɜ ɩɨɥɟ Input File ɜɵɛɪɚɧ ɮɚɣɥ AHC00.IBS ɨɬ NXP, ɤɨɬɨɪɵɣ ɩɪɢɫɭɬɫɬɜɭɟɬ ɜ ɩɚɩɤɟ LIBRARY. ȼɫɟ ɦɨɞɟɥɢ ɛɭɮɟɪɨɜ ɢɡ AHC00.IBS ɬɟɩɟɪɶ ɞɨɫɬɭɩɧɵ ɞɥɹ ɫɨɡɞɚɧɢɹ ɦɨɞɟɥɢ ɜ ɜɢɞɟ SPICE-ɩɨɞɫɯɟɦɵ.

ȼ ɞɚɧɧɨɦ IBIS-ɮɚɣɥɟ ɢɦɟɸɬɫɹ ɞɜɚ ɤɨɦɩɨɧɟɧɬɚ: 74AHC00_1 ɢ 74AHC00_2. 74AHC00_1 ɦɨɞɟɥɢɪɭɟɬ ɦɢɤɪɨɫɯɟɦɭ ɜ ɤɨɪɩɭɫɟ SO c 14-ɸ ɜɵɜɨɞɚɦɢ, ɚ 74AHC00_2 ɦɨɞɟɥɢɪɭɟɬ ɦɢɤɪɨɫɯɟɦɭ ɜ 14-ɜɵɜɨɞɧɨɦ ɤɨɪɩɭɫɟ TSSOP. ȼ ɪɚɫ- ɫɦɚɬɪɢɜɚɟɦɨɦ ɩɪɢɦɟɪɟ ɜɵɛɢɪɚɟɬɫɹ 74AHC00_1.

ɉɨɥɟ View By ɢɦɟɟɬ ɭɫɬɚɧɨɜɥɟɧɧɵɣ ɮɥɚɝ Pin, ɬɚɤɢɦ ɨɛɪɚɡɨɦ, ɜɫɟ ɜɯɨɞ- ɧɵɟ ɜɵɜɨɞɵ ɦɢɤɪɨɫɯɟɦɵ 74AHC00 ɩɨɤɚɡɵɜɚɸɬɫɹ ɜ ɫɩɢɫɤɟ Item List. ȼɵɛɢɪɚɹ ɜɵɜɨɞ 1 (pin 1) ɜ ɫɩɢɫɤɟ ɦɵ ɜɢɞɢɦ, ɱɬɨ ɞɨɫɬɭɩɧɵ 2 ɦɨɞɟɥɢ ɜ IBIS-ɮɚɣɥɟ ɞɥɹ ɷɬɨɝɨ ɜɵɜɨɞɚ: AHC_IN_50 ɢ AHC_IN_33. Ɇɨɞɟɥɶ AHC_IN_50 ɢɫɩɨɥɶɡɭɟɬɫɹ ɩɪɢ 5-ɜɨɥɶɬɨɜɨɦ ɩɢɬɚɧɢɢ, ɚ ɦɨɞɟɥɶ AHC_IN_33 ɢɫɩɨɥɶɡɭɟɬɫɹ ɩɪɢ ɧɚɩɪɹɠɟɧɢɢ ɩɢɬɚɧɢɹ 3.3V.

Ɉɩɢɫɚɧɢɹ, ɭɩɨɦɹɧɭɬɵɟ ɜɵɲɟ ɞɥɹ ɤɨɦɩɨɧɟɧɬɨɜ ɢ ɦɨɞɟɥɟɣ ɦɨɝɭɬ ɛɵɬɶ ɧɚɣɞɟɧɵ ɫɪɟɞɢ ɤɨɦɦɟɧɬɚɪɢɟɜ IBIS-ɮɚɣɥɚ. IBIS-ɮɚɣɥ ɦɨɠɟɬ ɩɪɨɫɦɚɬɪɢɜɚɬɶɫɹ ɥɸɛɵɦ ɬɟɤɫɬɨɜɵɦ ɪɟɞɚɤɬɨɪɨɦ.

ɉɪɢ ɜɵɛɪɚɧɧɨɣ ɦɨɞɟɥɢ AHC_IN_50 ɞɥɹ pin 1, ɧɚɠɦɢɬɟ ɤɧɨɩɤɭ OK ɜ ɞɢɚ- ɥɨɝɨɜɨɦ ɨɤɧɟ IBIS Model Creator, ɷɬɨ ɩɪɢɜɟɞɟɬ ɤ ɜɵɡɨɜɭ ɫɬɚɧɞɚɪɬɧɨɝɨ ɨɤɧɚ ɚɬɪɢɛɭɬɨɜ ɞɥɹ ɤɨɦɩɨɧɟɧɬɨɜ. ȼ ɷɬɨɦ ɦɟɫɬɟ ɫɨɡɞɚɟɬɫɹ ɦɨɞɟɥɶ ɜ ɜɢɞɟ SPICE- ɩɨɞɫɯɟɦɵ ɢ ɟɣ ɞɚɟɬɫɹ ɢɦɹ AHC_IN_50_1_TYP, ɤɨɬɨɪɨɟ ɹɜɥɹɟɬɫɹ ɤɨɦɛɢɧɚɰɢɟɣ ɢɦɟɧɢ ɦɨɞɟɥɢ, ɢɦɟɧɢ ɜɵɜɨɞɚ ɂɆɋ, ɢ ɜɢɞɚ ɢɫɩɨɥɶɡɭɟɦɵɯ ɩɚɪɚɦɟɬɪɨɜ: ɦɢɧɢ- ɦɚɥɶɧɵɯ, ɦɚɤɫɢɦɚɥɶɧɵɯ ɢ ɬɢɩɨɜɵɯ (minimum, typical, maximum). Ʉɧɨɩɤɚ IBIS ɜ

ɞɢɚɥɨɝɨɜɨɦ ɨɤɧɟ ɚɬɪɢɛɭɬɨɜ ɤɨɦɩɨɧɟɧɬɚ ɦɨɠɟɬ ɢɫɩɨɥɶɡɨɜɚɬɶɫɹ ɞɥɹ ɧɨɜɨɝɨ ɩɪɢɝɥɚɲɟɧɢɹ ɞɢɚɥɨɝɨɜɨɝɨ ɨɤɧɚ ɫɨɡɞɚɬɟɥɹ ɦɨɞɟɥɟɣ (IBIS Model Creator). ɇɚ- ɠɚɬɢɟ OK ɜ ɞɢɚɥɨɝɨɜɨɦ ɨɤɧɟ ɚɬɪɢɛɭɬɨɜ ɞɨɛɚɜɢɬ IBIS-ɤɨɦɩɨɧɟɧɬ ɢ ɩɨɦɟɫɬɢɬ SPICE-ɩɨɞɫɯɟɦɭ ɜ ɬɟɤɫɬɨɜɭɸ ɫɬɪɚɧɢɰɭ Models ɬɟɤɭɳɟɝɨ ɫɯɟɦɧɨɝɨ ɮɚɣɥɚ

Micro-Cap.

Ⱦɥɹ ɩɨɫɬɪɨɟɧɢɹ ɦɨɞɟɥɢ IBIS ɜɵɯɨɞɧɨɝɨ ɛɭɮɟɪɚ, ɢɫɩɨɥɶɡɭɟɬɫɹ ɚɧɚɥɨɝɢɱ- ɧɚɹ ɩɪɨɰɟɞɭɪɚ. ȼ ɷɬɨɦ ɫɥɭɱɚɟ, ɜɵɛɢɪɚɟɬɫɹ IBIS_Output5 ɤɨɦɩɨɧɟɧɬ ɢɡ ɫɟɤɰɢɢ Analog Primitives>IBIS ɢ ɩɨɦɟɳɚɟɬɫɹ ɜ ɬɟɤɭɳɭɸ ɫɯɟɦɭ. ɉɪɢ ɷɬɨɦ ɨɩɹɬɶ ɮɚɣɥ AHC00.IBS ɢɫɩɨɥɶɡɭɟɬɫɹ ɜ ɤɚɱɟɫɬɜɟ ɜɯɨɞɧɨɝɨ ɮɚɣɥɚ.

ȼ ɩɨɥɟ View By ɭɫɬɚɧɚɜɥɢɜɚɟɬɫɹ ɮɥɚɠɨɤ Pin, ɬɚɤɢɦ ɨɛɪɚɡɨɦ, ɜɫɟ ɜɵɯɨɞ- ɧɵɟ ɜɵɜɨɞɵ ɂɆɋ 74AHC00 ɛɭɞɭɬ ɩɨɤɚɡɚɧɵ ɜ ɫɩɢɫɤɟ. ɉɪɢ ɜɵɛɨɪɟ pin 3 ɦɨɠɧɨ ɜɢɞɟɬɶ, ɱɬɨ ɞɨɫɬɭɩɧɨ ɞɜɟ ɦɨɞɟɥɢ ɜ IBIS-ɮɚɣɥɟ ɞɥɹ ɷɬɨɝɨ ɜɵɜɨɞɚ: AHC_OUTI_50 ɢ AHC_OUTI_33, ɤɨɬɨɪɵɟ ɫɨɨɬɜɟɬɫɬɜɭɸɬ ɦɨɞɟɥɹɦ ɜɵɯɨɞɧɨɝɨ ɛɭɮɟɪɚ ɫ ɩɢɬɚɧɢɟɦ 5ȼ ɢ 3.3ȼ.

ȼɵɛɢɪɚɟɦ ɦɨɞɟɥɶ AHC_OUTI_50 ɞɥɹ ɜɵɜɨɞɚ 3 ɂɆɋ, ɧɚɠɢɦɚɟɦ ɤɧɨɩɤɭ OK — ɜɵɡɵɜɚɟɬɫɹ ɞɢɚɥɨɝɨɜɨɟ ɨɤɧɨ ɚɬɪɢɛɭɬɨɜ ɤɨɦɩɨɧɟɧɬɚ. SPICE-ɩɨɞɫɯɟɦɚ, ɫɨɡɞɚɜɚɟɦɚɹ ɜ ɷɬɨɬ ɦɨɦɟɧɬ ɛɭɞɟɬ ɧɚɡɜɚɧɚ AHC_OUTI_50_3_TYP. Ɉɩɹɬɶ ɧɚ- ɠɢɦɚɟɦ OK, ɩɪɢ ɷɬɨɦ ɞɨɛɚɜɥɹɟɬɫɹ ɭɫɥɨɜɧɨɟ ɝɪɚɮɢɱɟɫɤɨɟ ɨɛɨɡɧɚɱɟɧɢɟ (ɍȽɈ) ɢ ɦɨɞɟɥɶ ɜ ɜɢɞɟ SPICE-ɩɨɞɫɯɟɦɵ ɩɨɦɟɳɚɟɬɫɹ ɜ ɬɟɤɭɳɭɸ ɫɯɟɦɭ.

ɂɫɩɨɥɶɡɭɹ IBIS ɦɨɞɟɥɢ ɜɯɨɞɧɵɯ ɢ ɜɵɯɨɞɧɵɯ ɛɭɮɟɪɨɜ, ɤɨɬɨɪɵɟ ɛɵɥɢ ɫɨɡ- ɞɚɧɵ ɩɭɬɟɦ ɜɵɲɟɨɩɢɫɚɧɧɨɣ ɩɪɨɰɟɞɭɪɵ, ɩɨɫɬɪɨɟɧɚ ɩɪɨɫɬɚɹ ɫɯɟɦɚ ɞɥɹ ɦɨɞɟ- ɥɢɪɨɜɚɧɢɹ ɯɚɪɚɤɬɟɪɢɫɬɢɤ I/O ɦɢɤɪɨɫɯɟɦɵ 74AHC00 (ɪɢɫ. 12.6).

Ʉɨɦɩɨɧɟɧɬ IBIS_Output5 (X2) ɦɨɞɟɥɢɪɭɟɬ ɜɵɯɨɞɧɨɣ ɛɭɮɟɪ ɤɨɦɩɨɧɟɧɬɚ 74AHC00. ɗɬɨɬ ɤɨɦɩɨɧɟɧɬ ɢɦɟɟɬ 5 ɜɵɜɨɞɨɜ. ȼɯɨɞɧɨɣ ɜɵɜɨɞ ɩɨɞɫɨɟɞɢɧɟɧ ɤ ɢɫɬɨɱɧɢɤɭ ɢɦɩɭɥɶɫɧɨɝɨ ɫɢɝɧɚɥɚ V1, ɤɨɬɨɪɵɣ ɜɵɞɚɟɬ 40ɧɫ ɢɦɩɭɥɶɫ ɫ ɚɦɩɥɢɬɭ- ɞɨɣ 5V, ɤɨɬɨɪɵɣ ɢɫɩɨɥɶɡɭɟɬɫɹ ɞɥɹ ɢɫɩɵɬɚɧɢɹ ɩɟɪɟɞɚɱɢ ɱɟɪɟɡ ɜɵɯɨɞɧɨɣ ɛɭ- ɮɟɪ ɤɚɤ ɩɟɪɟɞɧɟɝɨ ɬɚɤ ɢ ɡɚɞɧɟɝɨ ɮɪɨɧɬɨɜ. ɂɫɬɨɱɧɢɤ ɨɬɪɢɰɚɬɟɥɶɧɨɝɨ ɧɚɩɪɹ- ɠɟɧɢɹ ɡɚɡɟɦɥɟɧ. ɂɫɬɨɱɧɢɤ ɩɨɥɨɠɢɬɟɥɶɧɨɝɨ ɧɚɩɪɹɠɟɧɢɹ ɫɨɜɦɟɫɬɧɨ ɫɨ ɜɯɨɞɨɦ ɪɚɡɪɟɲɟɧɢɹ (enable pin) ɩɨɞɫɨɟɞɢɧɟɧ ɤ ɢɫɬɨɱɧɢɤɭ 5V. ȼɵɯɨɞ ɱɟɪɟɡ ɪɟɡɢɫɬɨɪ ɫɨɩɪɨɬɢɜɥɟɧɢɟɦ 30.1 Ɉɦ ɩɨɞɫɨɟɞɢɧɟɧ ɤɨ ɜɯɨɞɚɦ ɥɢɧɢɢ ɩɟɪɟɞɚɱɢ. Ʌɢɧɢɹ ɩɟ- ɪɟɞɚɱɢ ɢɦɟɟɬ ɚɬɪɢɛɭɬ VALUE, ɨɩɪɟɞɟɥɟɧɧɵɣ ɤɚɤ:

L=5n C=3p Len=20

Ɋɢɫ. 12.6. Ɇɨɞɟɥɢɪɨɜɚɧɢɟ ɫɯɟɦɵ ɫ IBIS-ɤɨɦɩɨɧɟɧɬɚɦɢ

ɗɬɨ ɢɦɢɬɢɪɭɟɬ ɩɨɝɨɧɧɭɸ ɢɧɞɭɤɬɢɜɧɨɫɬɶ ɢ ɟɦɤɨɫɬɶ ɩɪɢ ɩɪɨɯɨɠɞɟɧɢɢ ɫɢɝ- ɧɚɥɚ ɨɬ ɜɵɯɨɞɧɨɝɨ ɛɭɮɟɪɚ ɤ ɜɯɨɞɧɨɦɭ ɛɭɮɟɪɭ. ɇɚɤɨɧɟɰ, ɤɨɦɩɨɧɟɧɬ IBIS_Input3 (X1), ɦɨɞɟɥɢɪɭɟɬ ɜɯɨɞɧɨɣ ɛɭɮɟɪ ɦɢɤɪɨɫɯɟɦɵ 74AHC00. ɗɬɚ ɦɨ- ɞɟɥɶ ɢɦɟɟɬ 3 ɜɵɜɨɞɚ. ȼɯɨɞɧɨɣ ɜɵɜɨɞ ɩɨɞɫɨɟɞɢɧɹɟɬɫɹ ɤ ɤɨɧɰɭ ɥɢɧɢɢ ɩɟɪɟɞɚ- ɱɢ. ȼɵɜɨɞ ɨɬɪɢɰɚɬɟɥɶɧɨɝɨ ɢɫɬɨɱɧɢɤɚ ɩɢɬɚɧɢɹ ɡɚɡɟɦɥɹɟɬɫɹ, ɩɨɥɨɠɢɬɟɥɶɧɵɣ ɢɫɬɨɱɧɢɤ ɛɟɪɟɬɫɹ ɪɚɜɧɵɦ 5ȼ. IBIS-ɦɨɞɟɥɶ ɜɯɨɞɧɨɝɨ ɛɭɮɟɪɚ ɧɟ ɢɦɟɟɬ ɜɵɯɨɞ- ɧɨɝɨ ɜɵɜɨɞɚ, ɩɨɫɤɨɥɶɤɭ ɨɧ ɢɫɩɨɥɶɡɭɟɬɫɹ ɤɚɤ ɧɚɝɪɭɡɤɚ ɞɥɹ ɢɫɬɨɱɧɢɤɚ ɫɢɝɧɚɥɚ, ɤɨɝɞɚ ɤ ɧɟɦɭ ɩɨɞɫɨɟɞɢɧɹɟɬɫɹ ɜɵɯɨɞ ɦɢɤɪɨɫɯɟɦɵ.

ɐɟɥɶ ɩɨɞɨɛɧɨɝɨ ɦɨɞɟɥɢɪɨɜɚɧɢɹ ɫɨɫɬɨɢɬ ɜ ɬɨɦ, ɱɬɨɛɵ ɩɨɫɦɨɬɪɟɬɶ, ɤɚɤ ɫɢɝ- ɧɚɥ ɪɚɫɩɪɨɫɬɪɚɧɹɟɬɫɹ ɦɟɠɞɭ ɜɵɯɨɞɨɦ ɦɢɤɪɨɫɯɟɦɵ 74AHC00 ɢ ɨɞɧɢɦ ɢɡ ɜɯɨ- ɞɨɜ ɬɚɤɨɣ ɠɟ ɦɢɤɪɨɫɯɟɦɵ 74AHC00, ɩɪɨɯɨɞɹ ɩɨ ɥɢɧɢɢ, ɦɨɞɟɥɢɪɭɟɦɨɣ ɚɤɬɢɜ- ɧɵɦ ɫɨɩɪɨɬɢɜɥɟɧɢɟɦ ɢ ɥɢɧɢɟɣ ɩɟɪɟɞɚɱɢ (ɫ ɪɚɫɩɪɟɞɟɥɟɧɧɵɦɢ ɩɚɪɚɦɟɬɪɚɦɢ).

Ɋɟɡɭɥɶɬɚɬɵ ɚɧɚɥɢɡɚ ɩɟɪɟɯɨɞɧɵɯ ɩɪɨɰɟɫɫɨɜ (ɪɢɫ. 12.6) ɩɨɤɚɡɵɜɚɸɬ ɡɚ- ɞɟɪɠɤɭ ɢ ɢɫɤɚɠɟɧɢɟ ɮɨɪɦɵ ɩɪɹɦɨɭɝɨɥɶɧɨɝɨ ɢɦɩɭɥɶɫɚ. ɉɨɫɬɪɨɟɧɵ 3 ɝɪɚɮɢɤɚ. V(In) — ɫɢɝɧɚɥ ɢɦɩɭɥɶɫɧɨɝɨ ɢɫɬɨɱɧɢɤɚ ɫɢɝɧɚɥɚ V1. V(Drv) — ɝɪɚɮɢɤ ɜɵɯɨɞɧɨ- ɝɨ ɧɚɩɪɹɠɟɧɢɹ ɜɵɯɨɞɧɨɝɨ ɛɭɮɟɪɚ X2. V(Out) — ɧɚɩɪɹɠɟɧɢɟ ɧɚ ɜɯɨɞɟ ɜɯɨɞɧɨ- ɝɨ ɛɭɮɟɪɚ.

ɜɵɯɨɞɧɵɯ ɥɨɝɢɱɟɫɤɢɯ ɭɪɨɜɧɟɣ — ɜ ɜɵɯɨɞɧɵɟ ɚɧɚɥɨɝɨɜɵɟ ɫɢɝɧɚɥɵ. Ʉɪɨɦɟ ɬɨ- ɝɨ, ɤ ɜɯɨɞɚɦ ɢ ɜɵɯɨɞɚɦ ɩɨɞɤɥɸɱɚɸɬɫɹ ɫɯɟɦɵ, ɢɦɢɬɢɪɭɸɳɢɟ ɜɯɨɞɧɵɟ ɢ ɜɵ- ɯɨɞɧɵɟ ɚɧɚɥɨɝɨɜɵɟ ɰɟɩɢ ɪɟɚɥɶɧɨɝɨ ɰɢɮɪɨɜɨɝɨ ɤɨɦɩɨɧɟɧɬɚ. Ɉɧɢ ɬɚɤɠɟ ɜɯɨɞɹɬ ɜ ɫɨɫɬɚɜ ɢɧɬɟɪɮɟɣɫɧɨɣ ɦɨɞɟɥɢ (ɪɢɫ. 13.2). Ɉɞɧɚɤɨ ɷɬɢ ɫɯɟɦɵ ɥɢɲɶ ɭɩɪɨɳɟɧ- ɧɨ ɩɨɜɬɨɪɹɸɬ ɫɯɟɦɨɬɟɯɧɢɱɟɫɤɭɸ ɪɟɚɥɢɡɚɰɢɸ ɜɯɨɞɧɵɯ ɢ ɜɵɯɨɞɧɵɯ ɰɟɩɟɣ ɪɟ- ɚɥɶɧɵɯ ɦɢɤɪɨɫɯɟɦ, ɢ ɩɪɟɞɧɚɡɧɚɱɟɧɵ ɜ ɨɫɧɨɜɧɨɦ ɞɥɹ ɭɱɟɬɚ ɩɪɢ ɦɨɞɟɥɢɪɨɜɚ- ɧɢɢ ɩɚɪɚɡɢɬɧɵɯ ɩɚɪɚɦɟɬɪɨɜ ɜɯɨɞɧɵɯ ɢ ɜɵɯɨɞɧɵɯ ɰɟɩɟɣ (ɫɨɩɪɨɬɢɜɥɟɧɢɣ, ɟɦ- ɤɨɫɬɟɣ, ɬɨɤɨɜ ɭɬɟɱɤɢ). ɉɨɷɬɨɦɭ ɩɪɢ ɦɨɞɟɥɢɪɨɜɚɧɢɢ ɭɫɬɪɨɣɫɬɜ, ɜ ɤɨɬɨɪɵɯ ɰɢɮ- ɪɨɜɵɟ ɦɢɤɪɨɫɯɟɦɵ ɪɚɛɨɬɚɸɬ ɜ ɚɧɚɥɨɝɨɜɨɦ ɪɟɠɢɦɟ (ɬ.ɟ. ɢɫɩɨɥɶɡɭɸɬɫɹ ɫɜɨɣ- ɫɬɜɚ ɢɯ ɜɧɭɬɪɟɧɧɟɣ ɫɯɟɦɨɬɟɯɧɢɱɟɫɤɨɣ ɪɟɚɥɢɡɚɰɢɢ) ɦɨɝɭɬ ɛɵɬɶ ɩɨɥɭɱɟɧɵ ɧɟ- ɜɟɪɧɵɟ ɪɟɡɭɥɶɬɚɬɵ.

Ɋɢɫ. 13.2. ɋɬɪɭɤɬɭɪɚ ɦɨɞɟɥɢ ɢɧɜɟɪɬɨɪɚ ɜ ɚɧɚɥɨɝɨɜɨɣ ɫɯɟɦɟ

ɧɚɥɨɝɨɜɵɟ ɦɨɞɟɥɢ ɜɯɨɞɚ ɢ ɜɵɯɨɞɚ, ɚ ɬɚɤɠɟ ɦɨɞɟɥɢ ɩɪɟɨɛɪɚɡɨɜɚɧɢɹ ɚɧɚɥɨɝɨɜɵɯ ɫɢɝɧɚɥɨɜ ɜ ɰɢɮɪɨɜɵɟ ɢ ɰɢɮɪɨɜɵɯ ɫɢɝɧɚɥɨɜ ɜ ɚɧɚɥɨɝɨɜɵɟ ɭ ɪɚɡ- ɧɵɯ ɫɟɪɢɣ ɦɢɤɪɨɫɯɟɦ ɪɚɡɥɢɱɧɵɟ. ȼɚɪɢɚɧɬɵ ɩɨɫɬɪɨɟɧɢɹ ɷɬɢɯ ɦɨɞɟɥɟɣ ɛɭɞɭɬ ɪɚɫɫɦɨɬɪɟɧɵ ɧɢɠɟ (ɫɦ. ɪɚɡɞɟɥ 13.5)

ɉɪɢ ɫɦɟɲɚɧɧɨɦ ɦɨɞɟɥɢɪɨɜɚɧɢɢ ɜɨɡɦɨɠɧɵ ɫɢɬɭɚɰɢɢ, ɤɨɝɞɚ ɰɢɮɪɨɜɨɣ ɤɨɦɩɨɧɟɧɬ ɩɨɞɤɥɸɱɟɧ ɤ ɚɧɚɥɨɝɨɜɨɦɭ ɬɨɥɶɤɨ ɜɯɨɞɨɦ ɢɥɢ ɬɨɥɶɤɨ ɜɵɯɨɞɨɦ. Ɍɚɤɠɟ ɜɨɡɦɨɠɧɚ ɫɢɬɭɚɰɢɹ, ɤɨɝɞɚ ɟɝɨ ɜɯɨɞ ɢɥɢ ɜɵɯɨɞ ɨɞɧɨɜɪɟɦɟɧɧɨ ɩɨɞɤɥɸ- ɱɟɧ ɢ ɤ ɰɢɮɪɨɜɵɦ, ɢ ɤ ɚɧɚɥɨɝɨɜɵɦ ɤɨɦɩɨɧɟɧɬɚɦ. Ɍɨɝɞɚ ɢɫɩɨɥɶɡɭɸɬɫɹ ɤɨɦɛɢ- ɧɚɰɢɢ ɢɡ ɩɪɢɜɟɞɟɧɧɵɯ ɮɭɧɤɰɢɨɧɚɥɶɧɵɯ ɛɥɨɤɨɜ ɢ ɫɬɪɭɤɬɭɪɚ ɦɨɞɟɥɢ ɫɬɚɧɨɜɢɬ- ɫɹ ɟɳɟ ɛɨɥɟɟ ɫɥɨɠɧɨɣ. Ɉɞɧɚɤɨ ɩɨɥɶɡɨɜɚɬɟɥɶ ɧɢɤɚɤɢɯ ɜɧɟɲɧɢɯ ɩɪɨɹɜɥɟɧɢɣ ɜɫɟɯ ɷɬɢɯ ɩɪɟɨɛɪɚɡɨɜɚɧɢɣ ɦɨɞɟɥɢ ɧɟ ɜɢɞɢɬ, ɡɚ ɢɫɤɥɸɱɟɧɢɟɦ ɬɚɤ ɧɚɡɵɜɚɟɦɨɝɨ «ɪɚɫɳɟɩɥɟɧɢɹ ɭɡɥɨɜ», ɜ ɪɟɡɭɥɶɬɚɬɟ ɤɨɬɨɪɨɝɨ ɜ ɬɨɱɤɟ ɫɨɩɪɹɠɟɧɢɹ ɰɢɮɪɨɜɵɯ ɢ ɚɧɚɥɨɝɨɜɵɯ ɤɨɦɩɨɧɟɧɬɨɜ ɦɨɝɭɬ ɩɨɹɜɥɹɬɶɫɹ ɫɪɚɡɭ ɞɜɚ ɭɡɥɚ – ɢ ɰɢɮɪɨɜɨɣ, ɢ ɚɧɚɥɨɝɨɜɵɣ.

ɉɪɢ ɦɨɞɟɥɢɪɨɜɚɧɢɢ ɰɢɮɪɨɜɵɯ ɫɯɟɦ ɜ ɡɧɚɱɢɬɟɥɶɧɨ ɛɨɥɶɲɟɣ ɫɬɟɩɟɧɢ ɧɟ- ɠɟɥɢ ɞɥɹ ɚɧɚɥɨɝɨɜɵɯ ɢɫɩɨɥɶɡɭɸɬɫɹ ɞɢɪɟɤɬɢɜɵ SPICE, ɩɨɷɬɨɦɭ ɦɚɬɟɪɢɚɥ ɷɬɨɣ ɱɚɫɬɢ ɤɧɢɝɢ ɫɥɨɠɧɟɟ ɞɥɹ ɜɨɫɩɪɢɹɬɢɹ, ɱɟɦ ɨɩɢɫɚɧɢɟ ɚɧɚɥɨɝɨɜɨɝɨ ɦɨɞɟ- ɥɢɪɨɜɚɧɢɹ. ȼɫɟ ɮɭɧɤɰɢɨɧɚɥɶɧɵɟ ɛɥɨɤɢ ɦɨɞɟɥɢ ɰɢɮɪɨɜɨɝɨ ɤɨɦɩɨɧɟɧɬɚ ɡɚɞɚ- ɧɵ ɜ ɜɢɞɟ ɩɨɞɫɯɟɦ SPICE, ɤɨɬɨɪɵɟ ɜɵɡɵɜɚɸɬɫɹ ɢɡ ɛɚɡɨɜɨɝɨ SPICE-ɨɩɢɫɚɧɢɹ ɦɨɞɟɥɢ ɷɬɨɝɨ ɤɨɦɩɨɧɟɧɬɚ, ɩɨɷɬɨɦɭ, ɱɬɨɛɵ ɪɚɡɨɛɪɚɬɶɫɹ ɜ ɫɬɪɭɤɬɭɪɟ ɦɨɞɟɥɟɣ, ɧɟɨɛɯɨɞɢɦɨ ɡɧɚɬɶ ɹɡɵɤ SPICE. ɇɨ ɩɪɢ ɢɫɩɨɥɶɡɨɜɚɧɢɢ ɰɢɮɪɨɜɵɯ ɩɪɢɦɢɬɢɜɨɜ Micro-Cap ɢɯ ɩɚɪɚɦɟɬɪɵ ɡɚɞɚɸɬɫɹ ɱɟɪɟɡ ɫɬɚɧɞɚɪɬɧɵɟ ɨɤɧɚ ɩɪɨɝɪɚɦɦɵ.

ɋɥɟɞɭɟɬ ɬɚɤɠɟ ɨɬɦɟɬɢɬɶ, ɱɬɨ ɜ ɦɨɞɟɥɹɯ ɰɢɮɪɨɜɵɯ ɤɨɦɩɨɧɟɧɬɨɜ ɧɟ ɭɱɢ- ɬɵɜɚɟɬɫɹ ɢɯ ɧɚɝɪɭɡɨɱɧɚɹ ɫɩɨɫɨɛɧɨɫɬɶ. Ɍ.ɟ. ɩɪɢ ɦɨɞɟɥɢɪɨɜɚɧɢɢ ɤ ɨɞɧɨɦɭ ɜɵ-

ɯɨɞɭ ɦɨɠɧɨ ɩɨɞɤɥɸɱɢɬɶ ɝɨɪɚɡɞɨ ɛɨɥɶɲɟ ɜɯɨɞɨɜ, ɱɟɦ ɞɨɩɭɫɤɚɟɬ ɪɟɚɥɶɧɵɣ ɤɨɦɩɨɧɟɧɬ.

13.1.1. ɐɢɮɪɨɜɵɟ ɭɡɥɵ

ɋɭɳɟɫɬɜɭɸɬ ɞɜɚ ɬɢɩɚ ɭɡɥɨɜ: ɚɧɚɥɨɝɨɜɵɟ ɢ ɰɢɮɪɨɜɵɟ. ȼ ɨɛɳɟɦ ɫɥɭɱɚɟ ɭɡɟɥ – ɷɬɨ ɬɨɱɤɚ ɫɨɟɞɢɧɟɧɢɹ ɞɜɭɯ ɢ ɛɨɥɟɟ ɤɨɦɩɨɧɟɧɬɨɜ. ȿɫɥɢ ɫɨɟɞɢɧɹɸɬɫɹ ɚɧɚɥɨɝɨɜɵɟ ɤɨɦɩɨɧɟɧɬɵ, ɬɨ ɷɬɨ ɚɧɚɥɨɝɨɜɵɣ ɭɡɟɥ, ɟɫɥɢ ɰɢɮɪɨɜɵɟ – ɬɨ ɰɢɮ- ɪɨɜɨɣ. ȼ ɬɨɱɤɟ ɫɨɟɞɢɧɟɧɢɹ ɰɢɮɪɨɜɨɝɨ ɢ ɚɧɚɥɨɝɨɜɨɝɨ ɤɨɦɩɨɧɟɧɬɚ ɜɨɡɧɢɤɚɸɬ ɫɪɚɡɭ ɨɛɚ ɭɡɥɚ, ɩɪɢɱɟɦ ɧɟɩɨɫɪɟɞɫɬɜɟɧɧɚɹ ɫɜɹɡɶ ɦɟɠɞɭ ɧɢɦɢ ɪɚɡɪɵɜɚɟɬɫɹ ɜ ɦɟɫɬɨ ɪɚɡɪɵɜɚ ɞɨɛɚɜɥɹɟɬɫɹ ɧɟɜɢɞɢɦɚɹ ɩɨɥɶɡɨɜɚɬɟɥɸ ɢɧɬɟɪɮɟɣɫɧɚɹ ɫɯɟɦɚ.

ɐɢɮɪɨɜɵɟ ɭɡɥɵ ɩɪɟɞɫɬɚɜɥɹɸɬɫɹ ɧɚ ɫɯɟɦɟ ɩɨɞɨɛɧɨ ɚɧɚɥɨɝɨɜɵɦ ɭɡɥɚɦ. ɋɨɫɥɚɬɶɫɹ ɧɚ ɧɢɯ ɦɨɠɧɨ ɩɨ ɧɨɦɟɪɭ ɢɥɢ ɬɟɤɫɬɨɜɨɦɭ ɧɚɢɦɟɧɨɜɚɧɢɸ. ɍɡɥɵ ɧɭ- ɦɟɪɭɸɬɫɹ ɚɜɬɨɦɚɬɢɱɟɫɤɢ ɩɪɨɝɪɚɦɦɨɣ Micro-Cap, ɚ ɬɟɤɫɬɨɜɵɟ ɢɦɟɧɚ ɢɦ ɩɪɢ- ɫɜɚɢɜɚɸɬɫɹ ɩɭɬɟɦ ɞɨɛɚɜɥɟɧɢɹ ɜ ɧɟɩɨɫɪɟɞɫɬɜɟɧɧɨɣ ɛɥɢɡɨɫɬɢ ɤ ɭɡɥɭ ɥɚɬɢɧɫɤɨ- ɝɨ ɬɟɤɫɬɚ. ɇɨɦɟɪɚ ɰɢɮɪɨɜɵɯ ɭɡɥɨɜ ɩɨɤɚɡɵɜɚɸɬɫɹ ɧɚ ɫɯɟɦɟ ɜɧɭɬɪɢ ɩɪɹɦɨ- ɭɝɨɥɶɧɢɤɨɜ ɫ ɡɚɨɫɬɪɟɧɧɵɦɢ ɭɝɥɚɦɢ, ɜ ɬɨ ɜɪɟɦɹ ɤɚɤ ɧɨɦɟɪɚ ɚɧɚɥɨɝɨɜɵɯ ɭɡɥɨɜ ɩɨɦɟɳɚɸɬɫɹ ɜɧɭɬɪɶ ɩɪɹɦɨɭɝɨɥɶɧɢɤɨɜ ɫɨ ɫɤɪɭɝɥɟɧɧɵɦɢ ɭɝɥɚɦɢ.

13.1.2. ɐɢɮɪɨɜɵɟ ɫɨɫɬɨɹɧɢɹ

Ʌɨɝɢɱɟɫɤɨɟ ɫɨɫɬɨɹɧɢɟ ɰɢɮɪɨɜɨɝɨ ɭɡɥɚ — ɷɬɨ ɫɨɱɟɬɚɧɢɟ ɥɨɝɢɱɟɫɤɨɝɨ ɭɪɨɜɧɹ (ɢɥɢ ɩɟɪɟɯɨɞɚ) ɢ ɧɚɝɪɭɡɨɱɧɨɣ ɫɩɨɫɨɛɧɨɫɬɢ ɭɡɥɚ. Ʌɨɝɢɱɟɫɤɨɟ ɫɨɫɬɨɹɧɢɟ ɨɛɨɡɧɚɱɚɟɬɫɹ ɫ ɩɨɦɨɳɶɸ ɫɢɦɜɨɥɨɜ, ɤɚɤ ɩɨɤɚɡɚɧɨ ɜ ɬɚɛɥ. 13.1.

Ɍ ɚ ɛ ɥ ɢ ɰ ɚ 1 3 . 1 . Ʌɨɝɢɱɟɫɤɢɟ ɫɨɫɬɨɹɧɢɹ

0 ɇɢɡɤɢɣ ɭɪɨɜɟɧɶ

1ȼɵɫɨɤɢɣ ɭɪɨɜɟɧɶ

Rɉɨɥɨɠɢɬɟɥɶɧɵɣ ɮɪɨɧɬ (Rising — ɩɟɪɟɯɨɞ ɢɡ ɥɨɝ. «0» ɜ ɥɨɝ. «1»)

FɈɬɪɢɰɚɬɟɥɶɧɵɣ ɮɪɨɧɬ (Falling — ɩɟɪɟɯɨɞ ɢɡ ɥɨɝ. «1» ɜ ɥɨɝ. «0»)

Ʌɨɝɢɱɟɫɤɢɟ ɭɪɨɜɧɢ

Ⱦɥɹ ɨɛɨɡɧɚɱɟɧɢɹ ɜɫɟɯ ɫɨɫɬɨɹɧɢɣ ɰɢɮɪɨɜɵɯ ɭɡɥɨɜ ɢɫɩɨɥɶɡɭɸɬɫɹ 6 ɛɭɤ- ɜɟɧɧɵɯ ɫɢɦɜɨɥɨɜ.

ɉɟɪɜɵɟ ɩɹɬɶ ɫɢɦɜɨɥɨɜ {0, 1, R, F, X} (ɫɦ. ɬɚɛɥ. 13.1) ɨɩɢɫɵɜɚɸɬ ɜɫɟ ɫɨ- ɫɬɨɹɧɢɹ ɡɚ ɢɫɤɥɸɱɟɧɢɟɦ ɜɵɫɨɤɨɢɦɩɟɞɚɧɫɧɨɝɨ. ɋɢɦɜɨɥ Z ɨɛɨɡɧɚɱɚɟɬ ɥɸɛɨɣ ɭɪɨɜɟɧɶ ɜ ɜɵɫɨɤɨɢɦɩɟɞɚɧɫɧɨɦ ɫɨɫɬɨɹɧɢɢ ɜɵɜɨɞɚ ɦɢɤɪɨɫɯɟɦɵ.

Ʌɨɝɢɱɟɫɤɢɟ ɭɪɨɜɧɢ ɫɨɨɬɜɟɬɫɬɜɭɸɬ ɞɢɚɩɚɡɨɧɭ ɧɚɩɪɹɠɟɧɢɣ, ɨɩɪɟɞɟɥɟɧɧɨɦɭ ɜ ɢɧɬɟɪɮɟɣɫɧɨɣ ɦɨɞɟɥɢ ɰɢɮɪɨɜɨɝɨ ɤɨɦɩɨɧɟɧɬɚ. Ɉɧɢ ɧɟ ɹɜɥɹɸɬɫɹ ɫɬɪɨɝɨ ɨɩ- ɪɟɞɟɥɟɧɧɵɦ ɡɧɚɱɟɧɢɟɦ ɧɚɩɪɹɠɟɧɢɹ. ɇɚɩɪɢɦɟɪ «1» ɦɨɠɟɬ ɛɵɬɶ ɨɩɪɟɞɟɥɟɧɚ ɜ ɦɨɞɟɥɶɧɵɯ ɞɢɪɟɤɬɢɜɚɯ, ɤɚɤ ɞɢɚɩɚɡɨɧ ɧɚɩɪɹɠɟɧɢɣ ɨɬ 1.7 ɞɨ 7 ȼɨɥɶɬ. ȿɫɥɢ ɰɢɮɪɨɜɨɣ ɭɡɟɥ ɩɟɪɟɤɥɸɱɚɟɬɫɹ ɢɡ ɧɭɥɟɜɨɝɨ ɜ ɟɞɢɧɢɱɧɨɟ ɫɨɫɬɨɹɧɢɟ, ɬɨ ɨɛ ɚɧɚɥɨɝɨɜɨɦ ɧɚɩɪɹɠɟɧɢɢ ɜ ɞɚɧɧɨɦ ɭɡɥɟ ɦɨɠɧɨ ɫɤɚɡɚɬɶ, ɱɬɨ ɨɧɨ ɜɨɡɪɨɫɥɨ, ɤɚɤ ɦɢɧɢɦɭɦ, ɞɨ 1.7 B, ɧɨ ɦɨɠɟɬ ɛɵɬɶ ɢ ɛɨɥɶɲɟ.

ȼɨ ɜɪɟɦɹ ɜɵɩɨɥɧɟɧɢɹ ɚɧɚɥɢɡɚ ɤɚɠɞɨɦɭ ɰɢɮɪɨɜɨɦɭ ɭɡɥɭ ɩɪɢɫɜɚɢɜɚɟɬɫɹ ɡɧɚɱɟɧɢɟ ɫɨɨɬɜɟɬɫɬɜɭɸɳɟɝɨ ɢɧɞɟɤɫɚ ɫɨɩɪɨɬɢɜɥɟɧɢɹ DRVH_Strength ɢɥɢ DRVL_Strength ɜ ɡɚɜɢɫɢɦɨɫɬɢ ɨɬ ɟɝɨ ɬɟɤɭɳɟɝɨ ɥɨɝɢɱɟɫɤɨɝɨ ɫɨɫɬɨɹɧɢɹ.

DIGOVRDRV, DIGDRVF, ɢ DIGDRVZ ɡɚɞɚɸɬɫɹ ɜ ɭɫɬɚɧɨɜɤɚɯ ɞɢɚɥɨɝɨɜɨɝɨ ɨɤɧɚ Global Settings ɢ ɦɨɝɭɬ ɛɵɬɶ ɢɡɦɟɧɟɧɵ ɞɥɹ ɤɨɧɤɪɟɬɧɨɣ ɫɯɟɦɵ ɫ ɩɨɦɨɳɶɸ ɞɢɪɟɤɬɢɜɵ .OPTIONS.

Ɍɪɟɯɫɬɚɛɢɥɶɧɵɟ ɰɢɮɪɨɜɵɟ ɜɵɯɨɞɵ

Ɋɚɫɩɪɨɫɬɪɚɧɟɧɧɨɣ ɫɢɬɭɚɰɢɟɣ ɩɪɢ ɩɪɨɟɤɬɢɪɨɜɚɧɢɢ ɢ ɦɨɞɟɥɢɪɨɜɚɧɢɢ ɰɢɮɪɨɜɵɯ ɭɫɬɪɨɣɫɬɜ ɹɜɥɹɟɬɫɹ ɢɫɩɨɥɶɡɨɜɚɧɢɟ ɬɪɟɯɫɬɚɛɢɥɶɧɵɯ ɲɢɧ. ȼ ɷɬɨɣ

ɫɢɬɭɚɰɢɢ ɧɟɫɤɨɥɶɤɨ ɭɫɬɪɨɣɫɬɜ ɫ ɬɪɟɯɫɬɚɛɢɥɶɧɵɦɢ ɜɵɯɨɞɚɦɢ ɩɨɞɤɥɸɱɚɬɫɹ ɤ ɨɛɳɟɦɭ ɭɡɥɭ. Ʉɚɠɞɨɟ ɢɡ ɭɫɬɪɨɣɫɬɜ ɢɦɟɟɬ ɜɯɨɞ ɪɚɡɪɟɲɟɧɢɹ ɪɚɛɨɬɵ Enable. ȿɫɥɢ ɧɚ ɷɬɨɦ ɜɯɨɞɟ ɩɪɢɫɭɬɫɬɜɭɟɬ ɫɢɝɧɚɥ, ɡɚɩɪɟɳɚɸɳɢɣ ɪɚɛɨɬɭ ɜɵɯɨɞɚ ɤɨɦ- ɩɨɧɟɧɬɚ, ɬɨ ɟɝɨ ɜɵɯɨɞɧɨɟ ɫɨɩɪɨɬɢɜɥɟɧɢɟ ɩɪɢɧɢɦɚɟɬɫɹ ɪɚɜɧɵɦ DIGDRVZ, ɢ ɟɦɭ ɩɪɢɫɜɚɢɜɚɟɬɫɹ ɢɧɞɟɤɫ ɥɨɝɢɱɟɫɤɨɣ ɫɢɥɵ, ɪɚɜɧɵɣ ɧɭɥɸ. Ɍɢɩɢɱɧɨɣ ɫɢɬɭɚɰɢ- ɟɣ ɪɚɛɨɬɵ ɬɚɤɢɯ ɭɫɬɪɨɣɫɬɜ ɹɜɥɹɟɬɫɹ ɡɚɩɪɟɳɟɧɢɟ ɪɚɛɨɬɵ ɜɫɟɯ ɜɵɯɨɞɨɜ (ɢɧ- ɞɟɤɫ ɢɯ ɥɨɝɢɱɟɫɤɨɣ ɫɢɥɵ ɪɚɜɟɧ 0), ɤɪɨɦɟ ɜɵɯɨɞɚ ɨɞɧɨɝɨ ɤɨɦɩɨɧɟɧɬɚ (ɢɧɞɟɤɫ ɟɝɨ ɥɨɝɢɱɟɫɤɨɣ ɫɢɥɵ ɛɨɥɶɲɟ ɧɭɥɹ). ȼ ɬɚɤɨɣ ɫɢɬɭɚɰɢɢ ɫɨɫɬɨɹɧɢɟ ɨɛɴɟɞɢɧɟɧɧɨ- ɝɨ ɭɡɥɚ ɛɭɞɟɬ ɨɩɪɟɞɟɥɹɬɶɫɹ ɫɨɫɬɨɹɧɢɟɦ ɜɵɯɨɞɚ ɰɢɮɪɨɜɨɝɨ ɤɨɦɩɨɧɟɧɬɚ, ɤɨɬɨ- ɪɵɣ ɢɦɟɟɬ ɪɚɡɪɟɲɚɸɳɢɣ ɫɢɝɧɚɥ ɧɚ ɜɯɨɞɟ Enable. ȼɚɠɧɨ ɨɬɦɟɬɢɬɶ, ɱɬɨ ɞɨ- ɩɨɥɧɢɬɟɥɶɧɵɦ ɭɫɥɨɜɢɟɦ ɬɚɤɨɝɨ ɪɟɡɭɥɶɬɚɬɚ, ɹɜɥɹɟɬɫɹ ɩɪɟɜɵɲɟɧɢɟ ɭɪɨɜɧɟɣ DRVH ɢ DRVL ɜɵɯɨɞɚ ɪɚɡɪɟɲɟɧɧɨɝɨ ɤɨɦɩɨɧɟɧɬɚ ɭɪɨɜɧɹ DIGDRVZ ɧɚ ɡɧɚɱɟ- ɧɢɟ ɩɚɪɚɦɟɬɪɚ DIGOVRDRV.

ɐɢɮɪɨɜɵɟ ɜɵɯɨɞɵ ɫ ɨɬɤɪɵɬɵɦ ɤɨɥɥɟɤɬɨɪɨɦ (Open-collector outputs)

Ⱦɪɭɝɢɦ ɪɚɫɩɪɨɫɬɪɚɧɟɧɧɵɦ ɫɥɭɱɚɟɦ ɨɛɴɟɞɢɧɟɧɢɹ ɜɵɯɨɞɨɜ ɰɢɮɪɨɜɵɯ ɤɨɦɩɨɧɟɧɬɨɜ ɹɜɥɹɟɬɫɹ ɨɛɴɟɞɢɧɟɧɢɟ ɜɵɜɨɞɨɜ ɫ ɨɬɤɪɵɬɵɦ ɤɨɥɥɟɤɬɨɪɨɦ. Ɍɢ- ɩɢɱɧɵɟ ɡɧɚɱɟɧɢɹ ɢɦɩɟɞɚɧɫɨɜ ɬɚɤɢɯ ɜɵɯɨɞɨɜ DRVL=100Ɉɦ ɢ DRVH=20K. ȼ ɷɬɨɦ ɫɥɭɱɚɟ ɤ ɨɛɴɟɞɢɧɟɧɧɨɦɭ ɭɡɥɭ ɩɨɞɤɥɸɱɚɟɬɫɹ ɨɛɳɢɣ ɩɨɞɬɹɝɢɜɚɸɳɢɣ ɪɟ- ɡɢɫɬɨɪ (PULLUP device). Ɍɢɩɢɱɧɚɹ ɜɟɥɢɱɢɧɚ ɩɨɞɬɹɝɢɜɚɸɳɟɝɨ ɪɟɡɢɫɬɨɪɚ ɪɚɜ- ɧɚ 1ɤɈɦ ɢ ɨɧ ɨɛɟɫɩɟɱɢɜɚɟɬ ɟɞɢɧɢɱɧɵɣ ɥɨɝɢɱɟɫɤɢɣ ɭɪɨɜɟɧɶ ɫɨ ɫɥɚɛɨɣ ɥɨɝɢɱɟ- ɫɤɨɣ ɫɢɥɨɣ. ȿɫɥɢ ɫɨɫɬɨɹɧɢɟ ɯɨɬɹ ɛɵ ɨɞɧɨɝɨ ɢɡ ɨɛɴɟɞɢɧɟɧɧɵɯ ɜɵɯɨɞɨɜ – ɥɨɝɢ- ɱɟɫɤɢɣ ɧɨɥɶ, ɬɨ ɢ ɫɨɫɬɨɹɧɢɟ ɨɛɴɟɞɢɧɟɧɧɨɝɨ ɭɡɥɚ – ɬɨɠɟ ɥɨɝɢɱɟɫɤɢɣ ɧɨɥɶ. ɗɬɨ ɨɛɴɹɫɧɹɟɬɫɹ ɬɟɦ, ɱɬɨ ɢɦɩɟɞɚɧɫ ɜɵɯɨɞɚ ɜ ɫɨɫɬɨɹɧɢɢ ɥɨɝɢɱɟɫɤɨɝɨ ɧɭɥɹ ɦɧɨɝɨ

ɦɟɧɶɲɟ ɫɨɩɪɨɬɢɜɥɟɧɢɹ ɩɨɞɬɹɝɢɜɚɸɳɟɝɨ ɪɟɡɢɫɬɨɪɚ ɢ ɬɟɦ ɛɨɥɟɟ ɢɦɩɟɞɚɧɫɚ ɜɫɟɯ ɨɫɬɚɥɶɧɵɯ ɜɵɯɨɞɨɜ (ɧɚɯɨɞɹɳɢɯɫɹ ɜ ɟɞɢɧɢɱɧɨɦ ɫɨɫɬɨɹɧɢɢ).

ȿɫɥɢ ɜɫɟ ɨɛɴɟɞɢɧɟɧɧɵɟ ɜɵɯɨɞɵ ɢɦɟɸɬ ɟɞɢɧɢɱɧɨɟ ɥɨɝɢɱɟɫɤɨɟ ɫɨɫɬɨɹɧɢɟ (ɫ ɜɵɯɨɞɧɵɦ ɢɦɩɟɞɚɧɫɨɦ 20 ɤɈɦ), ɬɨɝɞɚ ɩɨɞɬɹɝɢɜɚɸɳɟɝɨ ɪɟɡɢɫɬɨɪɚ 1 ɤɈɦ ɞɨɫɬɚɬɨɱɧɨ ɞɥɹ ɨɛɟɫɩɟɱɟɧɢɹ ɭɪɨɜɧɹ ɥɨɝɢɱɟɫɤɨɣ ɟɞɢɧɢɰɵ ɢ ɫɨɫɬɨɹɧɢɟ ɨɛɴɟ- ɞɢɧɟɧɧɨɝɨ ɭɡɥɚ ɛɭɞɟɬ ɫɨɨɬɜɟɬɫɬɜɨɜɚɬɶ ɥɨɝɢɱɟɫɤɨɣ ɟɞɢɧɢɰɟ ɫ ɜɵɯɨɞɧɵɦ ɢɦ- ɩɟɞɚɧɫɨɦ ɩɪɢɛɥɢɡɢɬɟɥɶɧɨ 1 ɤɈɦ.

13.1.3. ȼɪɟɦɟɧɧɵɟ ɦɨɞɟɥɢ (Timing models)

ȼɫɟ ɰɢɮɪɨɜɵɟ ɩɪɢɦɢɬɢɜɵ (ɡɚ ɢɫɤɥɸɱɟɧɢɟɦ PULLUP, PULLDN, CONSTRAINT, ɢ PINDLY) ɢɦɟɸɬ ɦɨɞɟɥɶ ɞɥɹ ɜɪɟɦɟɧɧɨɣ ɨɛɥɚɫɬɢ, ɩɚɪɚɦɟɬɪɵ ɤɨɬɨɪɨɣ ɡɚɞɚɸɬ ɩɨɜɟɞɟɧɢɟ ɷɬɨɝɨ ɤɨɦɩɨɧɟɧɬɚ ɩɪɢ ɜɵɩɨɥɧɟɧɢɢ ɦɨɞɟɥɢɪɨɜɚ- ɧɢɹ. ɗɬɢ ɩɚɪɚɦɟɬɪɵ ɜɤɥɸɱɚɸɬ ɜ ɫɟɛɹ: ɡɚɞɟɪɠɤɭ ɪɚɫɩɪɨɫɬɪɚɧɟɧɢɹ ɫɢɝɧɚɥɚ

(propagation delay), ɲɢɪɢɧɭ ɢɦɩɭɥɶɫɚ (pulse width), ɜɪɟɦɹ ɭɫɬɚɧɨɜɤɢ (setup time), ɜɪɟɦɹ ɭɞɟɪɠɚɧɢɹ (hold time) ɢ ɜɪɟɦɹ ɩɟɪɟɤɥɸɱɟɧɢɹ (switching time). ɉɟ- ɪɟɱɢɫɥɟɧɧɵɟ ɩɚɪɚɦɟɬɪɵ ɦɨɞɟɥɢ ɨɛɨɡɧɚɱɚɸɬɫɹ ɫɥɨɠɧɵɦɢ ɚɛɛɪɟɜɢɚɬɭɪɚɦɢ, ɬɨɥɤɨɜɚɧɢɟ ɫɨɫɬɚɜɧɵɯ ɱɚɫɬɟɣ ɤɨɬɨɪɵɯ ɩɪɟɞɫɬɚɜɥɟɧɨ ɜ ɬɚɛɥ. 13.2.

Ɍ ɚ ɛ ɥ ɢ ɰ ɚ 1 3 . 2 . Ⱥɛɛɪɟɜɢɚɬɭɪɵ ɩɚɪɚɦɟɬɪɨɜ ɰɢɮɪɨɜɵɯ ɜɪɟɦɟɧɧɵɯ ɦɨɞɟɥɟɣ

ɉɪɢɦɟɪɵ:

TPLHMN — ɦɢɧɢɦɚɥɶɧɚɹ ɡɚɞɟɪɠɤɚ ɪɚɫɩɪɨɫɬɪɚɧɟɧɢɹ ɩɪɢ ɩɟɪɟɤɥɸɱɟɧɢɢ ɢɡ ɧɢɡɤɨɝɨ ɜ ɜɵɫɨɤɨɟ ɫɨɫɬɨɹɧɢɟ ɞɥɹ ɫɬɚɧɞɚɪɬɧɵɯ ɢ ɬɪɟɯɫɬɚɛɢɥɶɧɵɯ ɜɟɧɬɢɥɟɣ.

TWPCLTY — ɬɢɩɨɜɚɹ ɞɥɢɬɟɥɶɧɨɫɬɶ ɢɦɩɭɥɶɫɚ ɧɢɡɤɨɝɨ ɭɪɨɜɧɹ ɞɥɹ ɭɫɬɚ- ɧɨɜɤɢ ɢ ɫɛɪɨɫɚ ɩɨ ɚɫɢɧɯɪɨɧɧɵɦ ɜɯɨɞɚɦ ɬɪɢɝɝɟɪɨɜ. ȼɯɨɞɵ P ɢɥɢ PREBAR — ɚɫɢɧɯɪɨɧɧɵɟ ɜɯɨɞɵ ɭɫɬɚɧɨɜɤɢ. ȼɯɨɞɵ C ɢɥɢ CLEARBAR — ɚɫɢɧɯɪɨɧɧɵɟ ɜɯɨ- ɞɵ ɫɛɪɨɫɚ.

THDCLKMN — ɦɢɧɢɦɚɥɶɧɚɹ ɞɥɢɬɟɥɶɧɨɫɬɶ ɭɞɟɪɠɚɧɢɹ ɫɢɝɧɚɥɚ ɧɚ ɢɧ- ɮɨɪɦɚɰɢɨɧɧɵɯ ɜɯɨɞɚɯ ɬɪɢɝɝɟɪɨɜ (J, K ɢɥɢ D ɜɯɨɞɵ) ɩɨɫɥɟ ɧɚɱɚɥɚ ɞɟɣɫɬɜɢɹ ɚɤɬɢɜɧɨɝɨ ɭɪɨɜɧɹ ɫɢɧɯɪɨɫɢɝɧɚɥɚ.

ɇɢɠɟ ɩɪɢɜɟɞɟɧ ɩɪɢɦɟɪ ɜɪɟɦɟɧɧɨɣ ɦɨɞɟɥɢ ɫɬɚɧɞɚɪɬɧɨɝɨ ɜɟɧɬɢɥɹ:

.MODEL DL_01 UGATE (TPLHMN=8NS TPLHTY=11NS

+ TPLHMX=13NS TPHLMN=6NS TPHLTY=9NS TPHLMX=12NS)

ȿɫɥɢ ɡɧɚɱɟɧɢɟ ɩɚɪɚɦɟɬɪɚ ɧɟ ɭɤɚɡɚɧɨ ɜ ɦɨɞɟɥɶɧɨɣ ɞɢɪɟɤɬɢɜɟ, ɬɨ ɨɧɨ ɩɪɢ- ɧɢɦɚɟɬɫɹ ɪɚɜɧɵɦ ɧɭɥɸ.