Silicon Laboratories C8051F350 Technical data

C8051F350

50 MIPS, 8 kB Flash, 24-Bit ADC, 32-Pin Mixed-Signal MCU

Analog Peripherals

24-Bit ADC

- 0.0015% nonlinearity

- Programmable throughput up to 1 ksps

- 8 external inputs; programmable as single-ended or differential

- Programmable amplifier gain: 128, 64, 32, 16, 8, 4, 2, 1

- Data-dependent windowed interrupt generator

- Built-in temperature sensor (±3 °C)

Two 8-Bit Current DACs
Comparator

- 16 Programmable hysteresis values and response time

- Configurable to generate interrupts or reset

- Low current (0.4 µA)

Internal Voltage Reference
VDD Monitor/Brown-out Detector

On-Chip Debug

- On-chip debug circuitry facilitates full speed, non-intrusive in-system

debug (no emulator required)

- Provides breakpoints, single stepping, watchpoints

- Inspect/modify memory, registers, and stack

- Superior performance to emulation systems using ICE-chips, target

pods, and sockets

Supply Voltage: 2.7 to 3.6 V

- Typical operating current: 17 mA at 50 MHz

16 µA at 32 kHz

- Typical stop mode current: <0.1 µA

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 50 MIPS throughput with 50 MHz clock

- Expanded interrupt handler

Memory

- 768 bytes data RAM

- 8 kB Flash; in-system programmable in 512 byte sectors (512 bytes are

reserved)

Digital Peripherals

- 17 port I/O; all 5 V tolerant

- Hardware SMBus™ (I2C™ compatible), SPI™, and UART serial ports

available concurrently

- 16-bit programmable counter array with three capture/compare modules,

WDT

- 4 general-purpose 16-bit counter/timers

- Realtime clock mode using PCA or timer and external clock source

Clock Sources

- Internal oscillator: 24.5 MHz, 2% accuracy supports UART operation

- External oscillator: Crystal, RC, C, or clock (1 or 2 pin modes)

- 2x clock multiplier to achieve 50 MHz internal clock

- Can switch between clock sources on-the-fly

Package

- 32-pin LQFP (lead-free package)

Ordering Part Numbers

- C8051F350-GQ

VDD

GND

AV+

AGND

RST/C2CK

VREF+

VREF-

AIN0

AIN1

AIN2

AIN3

AIN4

AIN5

AIN6

AIN7

Digital Power

Analog
Power

XTAL 1
XTAL 2

24.5 MHz 2%

C2D

External

Oscillator

Circuit

Internal

Oscillator

A
M
U
X

POR

Buffer

Debug HW

Brown-

Out

Multiplier

Clock

8 kB

FLASH

8
0

Reset

256 Byte

SRAM

5
1

512 Byte

XRAM

C

SFR Bus

o

System

r

Clock

e

VREF

Offset

DAC

+

PGA

+

Temp
Sensor

24-bit
ADC0

Port 0
Latch

UART

Timer 0,

1, 2, 3

3-Chnl

PCA/
WDT

SMBus

SPI Bus

Port 1
Latch

Port 2
Latch

8-bit
IDAC0

8-bit
IDAC1

X
B
A
R

CP0A

CP0

C2D

P
0

D

r

v

CP0+

+

CP0-

-

P
1

D

r

v

P0.0

P0.1

P0.2/XTA L1

P0.3/XTA L2

P0.4/TX

P0.5/RX

P0.6/CNVSTR

P0.7

P1.0

P1.1

P1.2

P1.3

P1.4/CP0A

P1.5/CP0

P1.6/IDAC0

P1.7/IDAC1

P2.0/C2D

Precision Mixed Signal Copyright © 2005 by Silicon Laboratories 5.5.2005

C8051F350

50 MIPS, 8 kB Flash, 24-Bit ADC, 32-Pin Mixed-Signal MCU

Selected Electrical Specifications

(TA = –40 to +85 C°, VDD = AV+ = 3.0 V, V
Decimation Ratio = 1920 unless otherwise specified)

PARAMETER CONDITIONS MIN TYP MAX UNITS

GLOBAL CHARACTERISTICS

Supply Voltage 2.7 3.6 V
Supply Current
(CPU active)

Clock = 50 MHz
Clock = 1 MHz

Clock = 32 kHz; V
Supply Current
(shutdown)

Oscillator not running; VDD Monitor

Disabled
Clock Frequency Range DC 50 MHz

24-BIT A/D CONVERTER

Resolution (no missing codes) 24 bits
Integral Nonlinearity Single-ended Mode

Differential Mode
Offset Error ±5 ppm
Gain Error ±0.002 %
Common Mode Rejection

110 dB
Ratio (CMRR)
Power Supply Rejection,

80 dB
DC
Power Supply Current

8-BIT CURRENT-MODE D/A CONVERTERS

Resolution 8 bits
Integral Nonlinearity ±0.5 LSB
Differential Nonlinearity Guaranteed Monotonic ±0.5 ±1 LSB

= 2.5 V External, PGA Gain = 1x, MDCLK = 2.4567 MHz,

REF

17

0.5

Monitor Enabled

DD

16

0.1 µA

±15 ppm FS

230 µA

mA

mA

µA

32

PIN 1

IDENTIFIER

A2

Package Information

D

D1

E1

1

A

A1

eb

C8051F350DK Development Kit

MIN

NOM

(mm)

A

A1

0.05

A2

E

1.35

b

0.30

D

D1

e

E

E1

MAX

(mm)

(mm)

-

-

1.60

-

0.15

1.40

1.45

0.37

0.45

-

9.00

-

-

7.00

-

-

0.80

-

-

9.00

-

-

7.00

-

Precision Mixed Signal Copyright © 2005 by Silicon Laboratories 5.5.2005

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