CD74HC138 vs SN74LS138 比較
詳細並排比較 CD74HC138 由 Texas Instruments 與 SN74LS138 由 Texas Instruments. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
規格比較
| 參數 | CD74HC138 | SN74LS138 |
|---|---|---|
| 品牌 | Texas Instruments | Texas Instruments |
| 類別 | Logic ICs | Logic ICs |
| 生命週期狀態 | 啟用中 | 啟用中 |
| Logic Function | 3-to-8 Line Decoder/Demultiplexer, inverting outputs | — |
| Logic Family | HC (High Speed CMOS) | 74LS (Schottky-clamped TTL) |
| Supply Voltage Range | 2 V to 6 V | — |
| Select Inputs | 3 (A0, A1, A2) | 3 (A, B, C) |
| Outputs | 8 active-low (Y0-Y7) | 8 active-low (Y0-Y7) |
| Enable Inputs | 3 (two active-low, one active-high) | 3 (G1 active-high, G2A/G2B active-low) |
| 輸出類型 | Inverting (active-low) | — |
| Technology | High-speed silicon-gate CMOS | Bipolar TTL MSI |
| Propagation Delay | [DATA_NEEDED: propagation delay at rated supply/load] | 20 ns (typical) |
| 靜態電流 | [DATA_NEEDED: ICC quiescent current] | — |
| Input Logic Compatibility | CMOS (HC level) | — |
| 封裝 | 16-pin PDIP / SOIC (per ordering suffix) | 16-PDIP (N) |
| 安裝類型 | Through-Hole (PDIP variant) / Surface Mount (SOIC variant) | Through Hole (PDIP variant) |
| 工作溫度 | [DATA_NEEDED: operating temperature range per suffix] | 0C to +70C |
| RoHS 狀態 | Compliant | [DATA_NEEDED: RoHS status] |
| Datasheet Document | SCHS147J (November 1998 - Revised November 2021) | — |
| Typical Use | Memory address decoding, data routing | — |
| 功能 | — | 3-line to 8-line Decoder/Demultiplexer |
| 供應電壓 | — | 5 V (TTL levels) |
| Output Sink Current | — | 8 mA |
| Power Dissipation | — | 32 mW (typical) |
| Other Packages | — | SOIC (D), SOP (NS) |
| Applications | — | High-performance memory decoding, data routing |