General Purpose

Copyright © 2005 by Silicon Laboratories

5.5.2005

Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.

Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders

C8051F221

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

Selected Electrical Specifications

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

GLOBAL CHARACTERISTICS

Digital Supply Voltage

2.7

3.6

V

Digital Supply Current

with CPU active

Clock = 25 MHz

Clock = 1 MHz

Clock = 32 kHz

9

0.4

18

mA

mA

µA

Digital Supply Current

(shutdown)

Oscillator not running

7

µA

Digital Supply RAM Data

Retention Voltage

1.5

V

CPU & DIGITAL I/O PORTS

Clock Frequency Range

DC

25

MHz

Port Output High Voltage

V

Port Output Low Voltage

0.6

V

Input High Voltage

V

Input Low Voltage

V

SPI Bus Clock Frequency

fCLK=MCU Clock; SPI in Master Mode

fCLK/2

MHz

A/D CONVERTER

Resolution

8

bits

Integral Nonlinearity

±1/2

LSB

Differential Nonlinearity

Guaranteed Monotonic

±1/2

LSB

Signal to Noise Ratio

49

dB

Throughput Rate

100

ksps

Input Voltage Range

0

V

COMPARATORS

Response Time

| CP+ – CP- | = 100 mV

4

µs

Input Voltage Range

–0.25

V

Input Bias Current

–5

0.001

+5

nA

Input Offset Voltage

–10

+10

mV

Package Information

A

A1

A2

b

D

D1

e

E

E1

-

0.05

1.35

0.30

-

-

-

-

-

-

-

1.40

0.37

9.00

7.00

0.80

9.00

7.00

1.60

0.15

1.45

0.45

-

-

-

-

-

MIN

(mm)

NOM

(mm)

MAX

(mm)

PIN 1

IDENTIFIER

A1

e

b

1

32

E1

D1

D

E

A2

A

C8051F226DK Development Kit