C8051F327-GM Silicon Laboratories Inc, C8051F327-GM Datasheet - Page 87

• Manufacturer Part Number: C8051F327-GM
• Description: IC 8051 MCU FLASH 16K 28QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F327-GM

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 28-QFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: UART/USART, USB
• Peripherals: POR
• Number Of I /o: 15
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1.5 KB
• Interface Type: UART/USB
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F326DK
• Minimum Operating Temperature: - 40 C
• Package: 28QFN EP
• Device Core: 8051
• Family Name: C8051F327
• Maximum Speed: 25 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1481 - DAUGHTER CARD TOOLSTCK C8051F327770-1006 - ISP 4PORT FOR SILABS C8051F MCU
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1297-5

12. Universal Serial Bus Controller (USB0)
C8051F326/7 devices include a complete Full/Low Speed USB function for USB peripheral implementa-
tions*. The USB Function Controller (USB0) consists of a Serial Interface Engine (SIE), USB Transceiver
(including matching resistors and configurable pullup resistors), 256 Byte FIFO block, and clock recovery
mechanism for crystal-less operation. No external components are required. The USB Function Controller
and Transceiver is Universal Serial Bus Specification 2.0 compliant.
*Note: The C8051F326/7 cannot be used as a USB Host device.
Note: This document assumes a comprehensive understanding of the USB Protocol. Terms and abbreviations used
D+
D-
in this document are defined in the USB Specification. We encourage you to review the latest version of the
USB Specification before proceeding.
VDD
Transceiver
Figure 12.1. USB0 Block Diagram
Transfer
Control
Data
Serial Interface Engine (SIE)
Rev. 1.1
IN
(256B RAM)
USB FIFOs
Endpoint0
Endpoint1
IN/OUT
OUT
Status, and
Registers
Interrupt
Control,
USB
C8051F326/7
CIP-51 Core
87