Silicon Laboratories C8051F347 - Manual

Full Speed USB Flash MCU Family
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
Rev. 1.4 9/09 Copyright © 2009 by Silicon Laboratories C8051F34x
Analog Peripherals
-
10-Bit ADC (C8051F340/1/2/3/4/5/6/7/A/B only)
• Up to 200 ksps
• Built-in analog multiplexer with single-ended and

differential mode
• VREF from external pin, internal reference, or V
DD
• Built-in temperature sensor
• External conversion start input option
- Two comparators
- Internal voltage reference

(C8051F340/1/2/3/4/5/6/7/A/B only)
- Brown-out detector and POR Circuitry
USB Function Controller
-
USB specification 2.0 compliant
- Full speed (12 Mbps) or low speed (1.5 Mbps) operation
- Integrated clock recovery; no external crystal required for
full speed or low speed
- Supports eight flexible endpoints
- 1 kB USB buffer memory
- Integrated transceiver; no external resistors required
On-Chip Debug
-
On-chip debug circuitry facilitates full speed, non-intru-
sive in-system debug (No emulator required)
- Provides breakpoints, single stepping,

inspect/modify memory and registers
- Superior performance to emulation systems using
ICE-chips, target pods, and sockets
Voltage Supply Input: 2.7 to 5.25 V
-
Voltages from 3.6 to 5.25 V supported using On-Chip

Voltage Regulator
HIgh Speed 8051 µC Core
-
Pipelined instruction architecture; executes 70% of
Instructions in 1 or 2 system clocks
- 48 MIPS and 25 MIPS versions available.
- Expanded interrupt handler
Memory
-
4352 or 2304 Bytes RAM
- 64 or 32 kB Flash; In-system programmable in 512-byte
sectors
Digital Peripherals
-
40/25 Port I/O; All 5 V tolerant with high sink current
- Hardware enhanced SPI™, SMBus™, and one or two
enhanced UART serial ports
- Four general purpose 16-bit counter/timers
- 16-bit programmable counter array (PCA) with five cap-
ture/compare modules
- External Memory Interface (EMIF)
Clock Sources
-
Internal Oscillator: ±0.25% accuracy with clock recovery
enabled. Supports all USB and UART modes
- External Oscillator: Crystal, RC, C, or clock (1 or 2 Pin
modes)
- Low Frequency (80 kHz) Internal Oscillator
- Can switch between clock sources on-the-fly
Packages
-
48-pin TQFP (C8051F340/1/4/5/8/C)
- 32-pin LQFP (C8051F342/3/6/7/9/A/B/D)
- 5x5 mm 32-pin QFN (C8051F342/3/6/7/9/A/B)
Temperature Range: –40 to +85 °C
ANALOG
PERIPHERALS
10-bit
200 ksps
ADC
64/32 kB
ISP FLASH
4/2 kB RAM
POR
DEBUG
CIRCUITRY
FLEXIBLE
INTERRUPTS
8051 CPU
(48/25 MIPS)
DIGITAL I/O
PRECISION INTERNAL
OSCILLATORS
HIGH-SPEED CONTROLLER CORE
A
M
U
X
CROSSB
AR
+
-
WDT
+
-
USB Controller /
Transceiver
Port 0
Port 1
Port 2
Port 3
TEMP
SENSOR
VREG
VREF Port 4 Ext.
M
e
mory
I/F
48 Pin Only
UART0
SMBus
PCA
4 Timers
SPI
UART1*
C8051F340/1/2/34/5/6/7/A/B Only * C8051F340/1/4/5/8/A/B/C Only