KSZ8721BLI-TR Microchip Technology IC TRANSCEIVER FULL 1/1 48LQFP Integrated circuits

KSZ8721B 3.3V Single Power Supply 10/100 Base-TX/FX MII Physical Layer Transceiver ic

General Description

Operating with a 2.5V core to meet low-voltage and low-power requirements, the KSZ8721BL and KSZ8721SL are 10BASE-T/100BASE-TX/FX Physical Layer Transceivers that use MII and RMII interfaces to transmit and receive data. They contain 10BASE-T Physical Medium Attachment (PMA), Physical Medium Dependent (PMD), and Physical Coding Sub-layer (PCS) functions. The KSZ8721BL/SL also have on-chip 10BASE-T output filtering. This eliminates the need for external filters and allows a single set of line magnetics to be used to meet requirements for both 100BASE-TX and 10BASE-T. The KSZ8721BL/SL automatically configure themselves for 100 or 10Mbps and full-duplex or half-duplex operation, using an on-chip auto-negotiation algorithm. They are the ideal physical layer transceiver for 100BASE-TX/10BASE-T applications.

Features

• Single Chip 100BASE-TX/100BASE-FX/ 10BASE-T Physical Layer Solution • 2.5V CMOS Design; 2.5/3.3V Tolerance on I/O • 3.3V Single Power Supply with Built-In Voltage Regulator; Power Consumption <340 mW (Including Output Driver Current) • Fully Compliant to IEEE 802.3u Standard • Supports MII and Reduced MII (RMII) • Supports 10BASE-T, 100BASE-TX, and 100BASE-FX with Far-End Fault Detection • Supports Power Down and Power Saving Modes • Configurable Through MII Serial Management Ports or via External Control Pin • Supports Auto-Negotiation and Manual Selection for 10/100 Mbps Speed and Full-Duplex/HalfDuplex Modes

On-Chip, Built-In, Analog Front-End Filtering for Both 100BASE-TX and 10BASE-T • LED Outputs for Link, Activity, Full-Duplex/HalfDuplex, Collision, and Speed • Supports Back-to-Back, FX to TX for Media Converter Applications • Supports MDI/MDI-X Auto-Crossover • KSZ8721BL is a Drop-In Replacement for the KSZ8721BT in the Same Footprint • KSZ8721SL is a Drop-In Replacement for the KSZ8721B in the Same Footprint • Commercial Temperature Range: 0°C to +70°C • Industrial Temperature Range: –40°C to +85°C • Available in 48-pin SSOP and LQFP Packages

IC TRANSCEIVER FULL 1/1 48LQFP Specification:

Description(Datasheet):

High-Performance RISC CPU • Only 49 Instructions to Learn: - All single-cycle instructions except branches

• Operating Speed: - DC – 32 MHz oscillator/clock input - DC – 125 ns instruction cycle

• Up to 16 Kbytes Linear Program Memory Addressing • Up to 1024 bytes Linear Data Memory Addressing

• Interrupt Capability with Automatic Context Saving

• 16-Level Deep Hardware Stack with Optional Overflow/Underflow Reset

• Direct, Indirect and Relative Addressing modes: - Two full 16-bit File Select Registers (FSRs) - FSRs can read program and data memory Flexible Oscillator Structure • Precision 32 MHz Internal Oscillator Block: - Factory calibrated to ± 1%, typical - Software selectable frequencies range of 31 kHz to 32 MHz • 31 kHz Low-Power Internal Oscillator • Four Crystal modes up to 32 MHz

• Three External Clock modes up to 32 MHz • 4x Phase Lock Loop (PLL)

• Fail-Safe Clock Monitor: - Allows for safe shutdown if peripheral clock stops

• Two-Speed Oscillator Start-Up

• Reference Clock Module: - Programmable clock output frequency and duty cycle Special Microcontroller Features

• 1.8V-5.5V Operation – PIC16F1825/9

• 1.8V-3.6V Operation – PIC16LF1825/9

• Self-Programmable under Software Control

• Power-on Reset (POR), Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

• Programmable Brown-out Reset (BOR) • Extended Watchdog Timer (WDT)

• In-Circuit Serial Programming™ (ICSP™) via Two Pins • In-Circuit Debug (ICD) via Two Pins

• Enhanced Low-Voltage Programming (LVP) • Programmable Code Protection

• Power-Saving Sleep mode

Extreme Low-Power Management PIC16LF1825/9 with XLP • Sleep mode: 20 nA @ 1.8V, typical

• Watchdog Timer: 300 nA @ 1.8V, typical • Timer1 Oscillator: 650 nA @ 32 kHz, 1.8V, typical

• Operating Current: 48 µA/MHz @ 1.8V, typical Analog Features

• Analog-to-Digital Converter (ADC) Module: - 10-bit resolution,

up to 12 channels - Auto acquisition capability - Conversion available during Sleep

• Analog Comparator Module: - Two rail-to-rail analog comparators - Power mode control - Software controllable hysteresis

• Voltage Reference Module: - Fixed Voltage Reference (FVR) with 1.024V, 2.048V and 4.096V output levels - 5-bit rail-to-rail resistive DAC with positive and negative reference selection Peripheral Highlights

• Up to 17 I/O Pins and 1 Input Only Pin: - High current sink/source 25 mA/25 mA - Programmable weak pull-ups - Programmable interrupt-on-change pins

• Timer0: 8-Bit Timer/Counter with 8-Bit Prescaler • Enhanced Timer1: - 16-bit timer/counter with prescaler - External Gate Input mode - Dedicated, low-power 32 kHz oscillator driver

• Three Timer2-types: 8-Bit Timer/Counter with 8-Bit Period Register, Prescaler and Postscaler

• Two Capture, Compare, PWM (CCP) Modules

• Two Enhanced CCP (ECCP) Modules: - Software selectable time bases - Auto-shutdown and auto-restart - PWM steering

• Up to Two Master Synchronous Serial Port (MSSP) with SPI and I2CTM with: - 7-bit address masking - SMBus/PMBusTM compatibility

• Enhanced Universal Synchronous Asynchronous Receiver Transmitter (EUSART) Module

• mTouch™ Sensing Oscillator Module: - Up to 12 input channels

14/20-Pin Flash Microcontrollers with XLP Technology microcontroller IC Marking information:

Environmental & Export Classifications