SI2493-C-FS 56 kbps V.92 ISOmodem | Skyworks Solutions
Référence : SI2493-C-FS ✓ ActifSI2493-C-FS Présentation
A V.92 ISOmodem is a system-side data communications controller designed to connect a host or embedded system with a telephone network interface. In the ISOmodem architecture, the SI2493-C-FS handles modem signal processing and data modulation while an external data access arrangement supports computer-side connectivity. It belongs to the broader hierarchy of modem IC, network interface controller, interface IC, and semiconductor.
The principal feature of the SI2493-C-FS is its combination of legacy and V.90/V.92 modulation support in one integrated device. Its listed formats include V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, and Bell 212A. The 56 kbps V.92 operating rate and extensive protocol coverage make the device suitable for specialized data equipment that must interoperate with older telephone-network equipment.
The 16-pin SOIC is offered as the footprint-compatible system-side implementation associated with the Si2401 ISOmodem family. This package option supports conventional surface-mount PCB assembly while retaining access to the modem functions required by compact embedded and industrial data products. The suffix identifies a specific ordering configuration; the manufacturer datasheet remains the controlling document for electrical limits, clocking, interface behavior, and application wiring.
Typical uses include legacy modem pools, industrial data communication equipment, telephone-line monitoring systems, point-of-sale terminals, and embedded access products requiring Bell or V-series compatibility. Because V.92 modem designs include analog telephone-line characteristics, component selection must account for the external line interface, isolation, filtering, ring detection, and the host-side communication requirements of the complete system.
For a new PCB, use the 16-pin SOIC footprint and follow the manufacturer pin-description table and typical application circuit. Do not assume that footprint compatibility alone guarantees functional interchangeability. Review clock requirements, supply sequencing, interface signals, country-specific line-network behavior, and external analog components before transferring an existing design to SI2493-C-FS.
This product page combines the manufacturer data-sheet information, interface and package characteristics, protocol coverage, verified sourcing records, and practical implementation guidance. It also distinguishes explicitly documented replacements from merely similar modem ICs so engineers can assess PCB reuse, protocol support, and system-level risk before making a sourcing decision.
Alternatives de remplacement direct pour SI2493-C-FS — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec SI2493-C-FS (même facteur de forme et même empreinte) — différant par Maximum Data Rate.
SI2493-C-FSR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
SI2493-D-FS
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →SI2493-C-FS Spécifications
| Product Type | System-side V.92 ISOmodem IC |
| Maximum Data Rate | 56 kbps |
| Supported Modem Standards | V.21, V.22, V.23, V.29, V.32, V.34, V.90, V.92, Bell 103, Bell 212A |
| Boîtier | 16-pin SOIC |
| Package Width | 0.154 inch (3.90 mm) |
| Type de montage | Surface mount |
| Packaging | Tube |
| Telephone-Line Standards | Bell 103 and Bell 212A |
| ISOmodem Architecture | System-side modem |
| Footprint Compatibility | Compatible with the Si2401 16-pin implementation |
| Data Format Support | V.21, V.22, V.23, V.29, V.32, V.34, V.90, and V.92 |
| Interface Category | Network controller and processor IC |
Guide de configuration des broches du SI2493-C-FS 0.154 inch (3.90 mm)
Configuration des broches du SI2493-C-FS (boîtier 0.154 inch (3.90 mm)). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour SI2493-C-FS.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
SI2493-C-FS convient pour 6 applications: Legacy Telephone-Line Data Equipment, Industrial Modem Pool Controller, Point-of-Sale Terminal Connectivity, Telephone-Line Monitoring and Diagnostics, Embedded Remote-Service Gateway, Specialized Data Communication Appliance.
Legacy Telephone-Line Data Equipment
The SI2493-C-FS fits legacy telephone-line data equipment that must maintain compatibility with Bell 103, Bell 212A, and multiple V-series modem formats. Its system-side ISOmodem function operates at up to 56 kbps under V.92 while retaining support for older modulation standards in the same 16-pin SOIC device. This combination is valuable when installed equipment must connect with remote terminals, test systems, or legacy infrastructure that has not migrated to newer data-link technologies. The complete product still requires the appropriate external line interface, filtering, isolation, and host-side communication arrangement; the IC does not replace the telephone network physical layer by itself.
Recommandé
Industrial Modem Pool Controller
The SI2493-C-FS is suitable for an industrial modem pool in which several lines must share one controller platform and preserve support for V.21, V.22, V.23, V.29, V.32, V.34, V.90, and V.92. Its 56 kbps V.92 capability supports management traffic, telemetry links, and equipment service channels where high legacy compatibility matters more than modern broadband throughput. A multi-channel implementation should isolate each line correctly, allocate modem resources in firmware, and include adequate surge protection at the external interface. The 16-pin SOIC package allows conventional board assembly without selecting a larger modem package.
Recommandé
Point-of-Sale Terminal Connectivity
The SI2493-C-FS can serve point-of-sale terminals that must communicate over a telephone line with older back-office systems. Support for Bell 103, Bell 212A, and several V-series formats allows the terminal to select an appropriate rate and modulation for the installed network. The 56 kbps V.92 mode provides a practical upper operating rate for transaction sessions, authorization traffic, and periodic reporting. Implementers should evaluate transaction latency, line quality, echo cancellation, and the external telephone-network interface before deployment, since the modem IC does not independently guarantee end-to-end service quality.
Recommandé
Telephone-Line Monitoring and Diagnostics
The SI2493-C-FS is appropriate for line-monitoring and diagnostic equipment that needs to emulate or communicate using established modem standards. Broad compatibility across Bell 103, Bell 212A, V.21, V.22, V.23, V.29, V.32, V.34, V.90, and V.92 enables controlled interaction with remote terminal equipment and legacy test systems. The system-side architecture also lets engineers concentrate line-interface protection and filtering on the appropriate external circuitry while using the IC for modem signal generation and reception. Diagnostics should include line-state detection and controlled disconnects to avoid disrupting live calls or violating local network operating rules.
Recommandé
Embedded Remote-Service Gateway
The SI2493-C-FS fits embedded remote-service gateways that must reach unattended equipment over legacy telephone infrastructure. Supporting both 56 kbps V.92 and older V-series and Bell formats allows a single modem platform to adapt to different field installations. The device can handle modem-facing signal processing while the host controller manages messaging, authentication, retries, and remote commands. For an industrial or outdoor installation, add the required line isolation, surge protection, ring detection, and robust power regulation, and confirm the external clock and interface requirements directly from the manufacturer data sheet.
Recommandé
Specialized Data Communication Appliance
The SI2493-C-FS can be integrated into a specialized appliance that must communicate with a fixed set of legacy modem-based controllers. Its broad protocol set allows the appliance to negotiate among V.21, V.22, V.23, V.29, V.32, V.34, V.90, and V.92 rather than requiring a separate modem for each old format. The 16-pin SOIC package is suitable for compact, permanently soldered assemblies and can simplify repair inventory when paired with the documented SI2493-C-FSR replacement. Final design approval should verify line-interface topology, certification obligations, clocking, supply sequencing, and the country-specific requirements of the telephone network.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour SI2493-C-FS — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | SI2493-C-FSR | SI2493-D-FS |
|---|---|---|---|
| Package | 16-SOIC | 16-SOIC - same package | 16-SOIC - same package |
| Brand | Skyworks Solutions Inc. | Skyworks Solutions Inc. | Skyworks Solutions Inc. |
| Product Type | System-side V.92 ISOmodem IC | System-side V.92 ISOmodem IC | System-side V.92 ISOmodem IC |
| Maximum Data Rate | 56 kbps | 56 kbps | 56 kbps |
| Drop-In Status | Target device | Documented complete replacement with matching terminals and package | Same-family alternative requiring parameter and lifecycle confirmation |
Principaux différenciateurs
- Documented complete replacement option (vs SI2493-C-FSR)
- Broad legacy and V.92 protocol coverage (vs SI2493-D-FS)
- Established 16-pin surface-mount implementation (vs SI2493-C-FSR)
Notes de conception
Use the manufacturer Si2493 data-sheet pin-description table when assigning every signal on the 16-pin SOIC. The package is footprint-compatible with the Si2401 implementation, but footprint compatibility does not by itself prove that two modem ICs can be interchanged. Confirm supply pins, ground connections, clocking, interface direction, and no-connect positions before releasing artwork or placing a substitute on an existing board.
Do not treat every 16-pin ISOmodem as a functional substitute. The SI2493-C-FSR is explicitly reported as a complete replacement, while the SI2493-D-FS must still be checked for revision-specific electrical behavior, protocol coverage, and lifecycle. Review the manufacturer data sheet, inspect the original BOM, and verify that the external telephone-line interface remains unchanged before approving a substitution.
The SI2493-C-FS is a telephone-line modem, so usable signal integrity depends on the complete analog path and not only on the 16-pin IC. Keep sensitive modem and clock routing short, maintain the layout prescribed by the manufacturer application circuit, provide the specified bypass capacitors, and isolate the line-side network from digital circuitry. Ring, hook, and line-interface components should follow the recommended external protection and filtering network.
Plan the supply rails around the exact electrical limits and sequencing requirements stated in the manufacturer data sheet. Avoid deriving regulator capacity from a family-level description; verify operating voltage, current, clock startup, and power-control behavior for the selected suffix. Decoupling must be placed directly at the relevant supply pins, with layout reviewed against the manufacturer reference circuit and the external modem interface load.
Informations de conformité
The available product records do not state the exact compliance status for this ordering code. AEC-Q100 is treated as not applicable because the component is presented as a general-purpose modem IC rather than an automotive-qualified device.