Silicon Laboratories C8051F344 ユーザーズマニュアル
Full Speed USB Flash MCU Family
C8051F340/1/2/3/4/5/6/7
Rev. 0.5 1/06
Copyright © 2006 by Silicon Laboratories
C8051F34x
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Analog Peripherals
-
-
10-Bit ADC
•
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
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Two comparators
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Internal voltage reference
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Brown-out detector and POR Circuitry
USB Function Controller
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-
USB specification 2.0 compliant
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Full speed (12 Mbps) or low speed (1.5 Mbps) operation
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Integrated clock recovery; no external crystal required for
full speed or low speed
full speed or low speed
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Supports eight flexible endpoints
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1 kB USB buffer memory
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Integrated transceiver; no external resistors required
On-Chip Debug
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-
On-chip debug circuitry facilitates full speed, non-intru-
sive in-system debug (No emulator required)
sive in-system debug (No emulator required)
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Provides breakpoints, single stepping,
inspect/modify memory and registers
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Superior performance to emulation systems using
ICE-chips, target pods, and sockets
ICE-chips, target pods, and sockets
Voltage Supply Input: 2.7 to 5.25 V
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-
Voltages from 3.6 to 5.25 V supported using On-Chip
Voltage Regulator
HIgh Speed 8051 µC Core
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Pipelined instruction architecture; executes 70% of
Instructions in 1 or 2 system clocks
Instructions in 1 or 2 system clocks
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48 MIPS and 25 MIPS versions available.
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Expanded interrupt handler
Memory
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-
4352 or 2304 Bytes RAM
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64 or 32 kB Flash; In-system programmable in 512-byte
sectors
sectors
Digital Peripherals
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-
40/25 Port I/O; All 5 V tolerant with high sink current
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Hardware enhanced SPI™, SMBus™, and one or two
enhanced UART serial ports
enhanced UART serial ports
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Four general purpose 16-bit counter/timers
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16-bit programmable counter array (PCA) with five cap-
ture/compare modules
ture/compare modules
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External Memory Interface (EMIF)
Clock Sources
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-
Internal Oscillator: 0.25% accuracy with clock recovery
enabled. Supports all USB and UART modes
enabled. Supports all USB and UART modes
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External Oscillator: Crystal, RC, C, or clock (1 or 2 Pin
modes)
modes)
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Low Frequency (80 kHz) Internal Oscillator
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Can switch between clock sources on-the-fly
Packages
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-
48-pin TQFP (C8051F340/1/4/5)
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32-pin LQFP (C8051F342/3/6/7)
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
X
C
R
O
SS
BA
R
+
-
WDT
+
-
USB Controller /
Transceiver
Port 0
Port 1
Port 2
Port 3
TEMP
SENSOR
VREG
VREF
Port 4
Ext. Me
m
o
ry I/
F
48 Pin Only
UART0
SMBus
PCA
4 Timers
SPI
UART1