C8051T320 View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
C8051T320 Datasheet PDF : 2 Pages
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C8051T620/621/320/321/322/323
Full Speed USB EPROM MCU Family
Analog Peripherals
10-Bit ADC (C8051T620/320/321 only)
- Up to 500 ksps
- Up to 21 external inputs
- VREF from on-chip VREF, external pin, Internal 1.8 V Regulator or VDD
- Internal or external start of conversion source
- Built-in temperature sensor
Comparators
- Programmable hysteresis and response time
- Configurable as interrupt or reset source
- Low current (<0.5 µA)
USB Function Controller
- 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
- 1 kB 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 regis-
ters
Supply Voltage: 1.8 to 5.25 V
- On-chip LDO for internal core supply
- Built-in supply voltage monitor
Temperature Range: –40 to +85 °C
High-Speed 8051 µC Core
- 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
Memory
- 1280 bytes internal data RAM (256 + 1024)
- 16 kB byte-programmable EPROM code memory
- EPROM can be programmed from firmware running on the device
Digital Peripherals
- 25 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
- 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
- 5x5 mm QFN28 or QFN32
- LQFP32
C2CK/RST
REGIN
VDD
GND
D+
D-
VBUS
Power On
Reset
Reset
Debug /
Programming
Hardware
CIP-51 8051
Controller Core
16k Byte OTP
Program Memory
256 Byte SRAM
C2D
In-system
Programming
Hardware
1024 Byte XRAM
VPP
Voltage
Regulator
Peripheral Power
Regulator
Core Power
XTAL1
XTAL2
System Clock Setup
External Oscillator
Internal Oscillator
Clock
Recovery
Low Freq.
Oscillator
USB Peripheral
Full / Low
Speed
Transceiver
Controller
1k Byte
RAM
SFR
Bus
Port I/O Configuration
Digital Peripherals
UART0
UART1
Timers 0,
1, 2, 3
PCA/
WDT
Priority
Crossbar
Decoder
SMBus
SPI
Crossbar Control
Analog Peripherals
(C8051T620)
VDD
Voltage
Reference VREF
VREF
10-bit
500ksps
ADC
VDD
A
VREF
M
U
Temp
X
Sensor
GND
CP0, CP0A +
-
CP1, CP1A +
-
2 Comparators
Port 0
Drivers
Port 1
Drivers
Port 2
Drivers
Port 3
Drivers
VIO
P0.0
P0.1
P0.2/XTAL1
P0.3/XTAL2
P0.4/TX
P0.5/RX
P0.6/CNVSTR
P0.7/VREF
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5/VPP
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P3.0/C2D
USB
Copyright © 2011 by Silicon Laboratories
01.21.11
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