C8051T622/623/326/327 Full Speed USB EEPROM MCU Family USB Function Controller High-Speed 8051 µC Core - - - USB specification 2.0 compliant Full speed (12 Mbps) or low speed (1.5 Mbps) operation Integrated clock recovery; no external oscillator required for full speed or low speed Supports six flexible endpoints 256-byte USB buffer memory Integrated transceiver; no external resistors required On-Chip Debug - C8051F34A can be used as code development platform; Complete development kit available On-chip debug circuitry facilitates full speed, nonintrusive in-system debug Provides breakpoints, single stepping, inspect/modify memory and registers - Digital Peripherals - 1280 bytes internal data RAM (256 + 1024) 16 kB byte-programmable EPROM code memory EPROM can be programmed from firmware running on the device - - Supply Voltage: 1.8 to 5.25 V - Two internal oscillators: • 48 MHz: ±0.25% accuracy with clock recovery enabled. Supports all USB and UART modes • 80/40/20/10 kHz low frequency, low power External oscillator: Crystal, RC, C, or CMOS Clock Can switch between clock sources on-the-fly; useful in power saving modes Package Options On-chip LDO for internal core supply Built-in supply voltage monitor - Temperature Range: –40 to +85 °C Power On Reset Debug / Programming Hardware 16k/8k Byte OTP Program Memory UART0 Port 0 Drivers UART1 256 Byte SRAM Timers 0, 1, 2, 3 1024 Byte XRAM PCA/ WDT Priority Crossbar Decoder SMBus VPP REGIN Voltage Regulator VDD VIO1 Digital Peripherals C2D In-system Programming Hardware 4x4 mm QFN24 5x5 mm QFN28 Port I/O Configuration CIP-51 8051 Controller Core Reset C2CK/RST Up to 16 port I/O with high sink current capability Hardware enhanced SPI™, SMBus™, and two enhanced UART serial ports Four general purpose 16-bit counter/timers 16-bit programmable counter array (PCA) with five capture/compare modules and enhanced PWM functionality Clock Sources Memory - Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks Up to 48 MIPS throughput with 48 MHz clock Expanded interrupt handler SPI Port 1 Drivers Peripheral Power Crossbar Control Regulator Core Power GND Port 2 Drivers SFR Bus P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.62 P2.0/C2D System Clock Setup XTAL1 XTAL2 External Oscillator Note 1: Not available on C8051T327 devices. Note 2: Not available on C8051T326/7 devices. Internal Oscillator Clock Recovery Low Freq. Oscillator USB Peripheral D+ DVBUS USB Full / Low Speed Transceiver Controller 256 Byte RAM Copyright © 2011 by Silicon Laboratories 01.21.11 C8051T622/623/326/327 Full Speed USB EEPROM MCU Family Ordering Part Number MIPS (Peak) EPROM Code Memory (Bytes) RAM (Bytes) Calibrated Internal 48 MHz Oscillator Internal 80 kHz Oscillator USB with 256 Bytes Endpoint RAM Supply Voltage Regulator SMBus/I2C Enhanced SPI UARTs Timers (16-bit) Programmable Counter Array Digital Port I/Os Separate Port I/O Supply (VIO) Lead-Free (RoHS Compliant) Package Product Selection Guide C8051T622-GM 48 16k1 1280 Y Y Y Y Y Y 2 4 Y 16 Y Y QFN24 C8051T623-GM Y Y QFN24 48 8k 1280 Y Y Y Y Y Y 2 4 Y 16 C8051T326-GQ2 48 16k1 1280 Y Y Y Y Y Y 2 4 Y 15 Y Y QFN28 3 48 16k1 1280 Y Y Y Y Y Y 2 4 Y 15 N Y QFN28 C8051T327-GM Notes: 1. 512 bytes reserved for factory use. 2. Pin compatible with the C8051F326-GM. 3. Pin compatible with the C8051F327-GM. C8051T62x Development Kit Selected Electrical Charasteristics Parameter Min Typ Max Units 1.8 1.75 3.0 — 3.6 1.9 V V 0 — 48 MHz –40 — +85 °C 2.7 — 5.25 V 3.3 3.45 3.6 V Output Current — — 100 mA USB Copyright © 2011 by Silicon Laboratories Supply Voltage Conditions Regulator1 in Normal Mode Regulator1 in Bypass Mode SYSCLK (System Clock) Specified Operating Temp Range Voltage Regulator (REG0) Input Voltage Range Output Voltage (VDD) Output Current = 1 to 100 mA Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders 01.21.11 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Silicon Laboratories: C8051T326DB28 C8051T326-GM C8051T327-GM C8051T622-GM C8051T623-GM C8051T327DB28 C8051T326-GMR C8051T327-GMR C8051T622-GMR C8051T623-GMR