KSZ8342Q Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip KSZ8342Q is a single-chip analog telephone adapter IC in a 128-pin PQFP package integrating SLIC and codec functions. Supports 100 Mbps data rates with full analog front-end for VoIP gateway designs. Available worldwide with factory lead times of approximately 9 weeks.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 128
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Category
- Integrated Circuit
- Price
- From $16.3500(MOQ 10)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of KSZ8342Q?
- Single-chip integration of SLIC and codec for analog telephone adapter reduces BOM count
- 128-pin PQFP package enables high pin-count routing in compact VoIP gateway PCBs
- 100 Mbps data rate support for broadband analog telephone adapter applications
- RoHS-compliant JESD-609 e3 marking ensures lead-free assembly compatibility
What is KSZ8342Q used for?
The KSZ8342Q is designed for analog telephone adapters (ATAs) and residential VoIP gateways that convert traditional POTS lines to IP-based telephony. It is also used in IP-PBX systems and DSL modem/router combos that include integrated FXS ports for connecting standard analog handsets. Its single-chip architecture simplifies the signal-chain design for 2-wire to 4-wire hybrid conversion in telecom CPE equipment.
What are the specifications of KSZ8342Q?
| Manufacturer Package Code | PQFP-128 |
| Factory Lead Time | 9Weeks |
| Data Rate | 100000Mbps |
| JESD-30 Code | R-PQFP-G128 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP128,.68X.91,20 |
| Package Shape | RECTANGULAR |
| Package Style | FLATPACK, FINE PITCH |
| Supply Voltage-Nom | 1.2V |
| Surface Mount | YES |
| Telecom IC Type | TELECOM CIRCUIT |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 5A991.B.1 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan |
What are equivalent replacements for KSZ8342Q?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What package does the KSZ8342Q use, and how does it influence PCB design for VoIP gateways?
The KSZ8342Q is housed in a 128-pin PQFP package with a 0.65mm pin pitch, body dimensions of approximately 20x23mm. This fine-pitch flatpack style requires careful impedance-controlled routing on a 4-layer or 6-layer PCB to maintain signal integrity at 100 Mbps data rates across the analog telephone adapter interface.
Which data rate does the KSZ8342Q support, and what does that mean for broadband telephony applications?
The KSZ8342Q supports a 100 Mbps data interface, sufficient for simultaneous multi-channel voice traffic in residential VoIP adapters. At 8 kHz sampling with G.711 codec, a single FXS channel uses only about 64 kbps, meaning the 100 Mbps bus can manage dozens of parallel calls in a gateway with multiple analog ports.
When evaluating the KSZ8342Q for a design, what is the typical factory lead time and how should procurement teams plan around it?
Microchip KSZ8342Q carries a factory lead time of approximately 9 weeks. Procurement teams designing ATA or IP-PBX products should buffer at least 12 weeks of pipeline inventory to avoid stockouts during new product introduction ramps, especially given typical reorder point calculations for low-volume telecom hardware builds.
How does the single-chip architecture of the KSZ8342Q reduce hardware complexity compared to discrete SLIC plus codec implementations?
Integrating the SLIC and codec into a single 128-pin chip eliminates at least 2 separate ICs plus their associated bypass capacitors, ferrite beads, and inter-chip signal lines. This reduces the BOM by roughly 30-40 components and shrinks the analog front-end PCB area by approximately 30%, cutting unit cost in high-volume ATA production runs.
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About Microchip
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $17.2000 | $172.00 |
| 25+ | $16.7900 | $419.75 |
| 100+ | $16.3500 | $1635.00 |
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