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ISL3871IK18-TK from CONEXANT

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ISL3871IK18-TK

Manufacturer: CONEXANT, INTERSIL

Wireless LAN Integrated Medium Access Controller with Baseband Processor

Partnumber Manufacturer Quantity Availability
ISL3871IK18-TK,ISL3871IK18TK CONEXANT, INTERSIL 1500 In Stock

Description and Introduction

Wireless LAN Integrated Medium Access Controller with Baseband Processor The ISL3871IK18-TK is a wireless LAN (WLAN) baseband processor manufactured by **INTERSIL** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on available information:

### **Specifications:**
- **Manufacturer:** INTERSIL (now Renesas Electronics)  
- **Part Number:** ISL3871IK18-TK  
- **Type:** WLAN Baseband Processor  
- **Package:** 128-LQFP (Low-Profile Quad Flat Package)  
- **Operating Voltage:** Typically 3.3V  
- **Interface:** Supports standard WLAN interfaces (e.g., PCI, USB)  
- **Compliance:** IEEE 802.11b standard  
- **Data Rate:** Up to 11 Mbps (802.11b)  
- **Modulation Schemes:** CCK, DQPSK, DBPSK  
- **Operating Temperature Range:** Industrial-grade (-40°C to +85°C)  

### **Descriptions:**
The ISL3871IK18-TK is a highly integrated baseband processor designed for **802.11b wireless LAN applications**. It provides the necessary digital signal processing for WLAN communication, including modulation/demodulation, encryption/decryption (WEP), and MAC (Media Access Control) layer functions.  

### **Features:**
- **Full 802.11b Compliance:** Supports all mandatory data rates (1, 2, 5.5, and 11 Mbps).  
- **Integrated Baseband Processing:** Includes CCK, DQPSK, and DBPSK modulation/demodulation.  
- **Security Support:** Hardware-based WEP encryption (64/128-bit).  
- **Low Power Consumption:** Optimized for power-sensitive applications.  
- **Flexible Host Interface:** Compatible with standard interfaces like PCI or USB.  
- **Industrial Temperature Range:** Suitable for harsh environments.  
- **On-Chip Memory:** Includes buffers for efficient data handling.  

This information is based on historical data from INTERSIL's product documentation. For the latest details, refer to **Renesas Electronics** (the current owner of INTERSIL's product lines).

Application Scenarios & Design Considerations

Wireless LAN Integrated Medium Access Controller with Baseband Processor

Alternative Part Number

  • MAX3243ECAI --: RS-232 transceiver in the same interface IC class; widely available and functionally similar for serial communication applications.
  • SP3243ECA-L --: Pin-compatible RS-232 transceiver alternative with comparable electrical characteristics and supply voltage range.
  • ADM3202ARNZ --: Low-power RS-232 transceiver offering similar interface functionality and a reliable second-source option.
  • PRISM2.5 --: The ISL3871 is part of the PRISM 2.5 WLAN chipset; the PRISM2.5 baseband/MAC chip is the closest functional equivalent in the same family.
  • HFA3861B --: Intersil PRISM-series baseband processor with similar 802.11b MAC/baseband functionality and comparable interface, usable as a functional substitute.
  • HFA3842B --: Intersil PRISM II baseband processor offering similar wireless LAN baseband functions; a viable alternative when the exact ISL3871 variant is unavailable.

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