SN74LS138 vs CD74HC138 Comparaison
Comparaison détaillée côte à côte de SN74LS138 par Texas Instruments et CD74HC138 par Texas Instruments. Comparez les spécifications clés, les paramètres électriques, le conditionnement, le statut de cycle de vie, les prix et la disponibilité pour déterminer le meilleur composant pour vos exigences de conception.
Comparaison des spécifications
| Paramètre | SN74LS138 | CD74HC138 |
|---|---|---|
| Marque | Texas Instruments | Texas Instruments |
| Catégorie | Logic ICs | Logic ICs |
| Statut du cycle de vie | Actif | Actif |
| Statut du stock | In Stock | In Stock |
| Prix unitaire (USD) | $0,28 | $0,18 |
| Fonction | 3-line to 8-line Decoder/Demultiplexer | — |
| Logic Family | 74LS (Schottky-clamped TTL) | HC (High Speed CMOS) |
| Tension d'alimentation | 5 V (TTL levels) | — |
| Propagation Delay | 20 ns (typical) | [DATA_NEEDED: propagation delay at rated supply/load] |
| Outputs | 8 active-low (Y0-Y7) | 8 active-low (Y0-Y7) |
| Select Inputs | 3 (A, B, C) | 3 (A0, A1, A2) |
| Enable Inputs | 3 (G1 active-high, G2A/G2B active-low) | 3 (two active-low, one active-high) |
| Output Sink Current | 8 mA | — |
| Power Dissipation | 32 mW (typical) | — |
| Température de fonctionnement | 0C to +70C | [DATA_NEEDED: operating temperature range per suffix] |
| Boîtier | 16-PDIP (N) | 16-pin PDIP / SOIC (per ordering suffix) |
| Other Packages | SOIC (D), SOP (NS) | — |
| Type de montage | Through Hole (PDIP variant) | Through-Hole (PDIP variant) / Surface Mount (SOIC variant) |
| Technology | Bipolar TTL MSI | High-speed silicon-gate CMOS |
| Statut RoHS | [DATA_NEEDED: RoHS status] | Compliant |
| Applications | High-performance memory decoding, data routing | — |
| Logic Function | — | 3-to-8 Line Decoder/Demultiplexer, inverting outputs |
| Supply Voltage Range | — | 2 V to 6 V |
| Type de sortie | — | Inverting (active-low) |
| Courant de repos | — | [DATA_NEEDED: ICC quiescent current] |
| Input Logic Compatibility | — | CMOS (HC level) |
| Datasheet Document | — | SCHS147J (November 1998 - Revised November 2021) |
| Typical Use | — | Memory address decoding, data routing |