General Purpose Copyright © 2004 by Silicon Laboratories 6.15.2004
Port 0
Latch
Port 1
Latch
JTAG
Logic
TCK
TMS
TDI
TDO
UART
8 kB FLASH
256 byte
RAM
VDD
Monitor
SFR Bus Port 2
Latch
Port 3
Latch
8
0
5
1
C
o
r
e
Timer 0
Timer 1
Timer 2
A
M
U
X
CP0
CP1
AIN0-AIN31
P1.0/CP0+
P1.1/CP0-
P1.2/CP0
P1.3/CP1+
P1.4/CP1-
P1.5/CP1
P1.6/SYSCLK
P1.7
P
1
D
r
v
P0.0/TX
P0.1/RX
P0.2//INT0
P0.3//INT1
P0.4/T0
P0.5/T1
P0.6/T2
P0.7/T2EX
P
0
D
r
v
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P
3
D
r
v
P2.0/NSS
P2.1/MISO
P2.2/MOSI
P2.3/SCK
P2.4
P2.5
P2.6
P2.7
P
2
D
r
v
CP0+
CP0-
CP1+
CP1-
P
0
M
U
X
VDD
VDD
GND
GND
Reset
RST
XTAL1
XTAL2
External
Oscillator
Circuit System Clock
Internal
Oscillator
Analog/Digital
Power
Debug HW P
1
M
U
X
CP0
CP1
VDD
P
2
M
U
X
SPI
VREF
NC
NC
NC
MONEN WDT
PGA
SYSCLK
8-bit
100 ksps
ADC
C8051F220
25 MIPS, 8 kB Flash, 8-Bit ADC, 48-Pin Mixed-Signal MCU
Analog Peripherals
8-Bit ADC
-±1/2 LSB INL; no missing codes
-Programmable throughput up to 100 ksps
-32 external inputs (each port I/O can be configured as an ADC input on-
the-fly)
-Programmable amplifier gain: 16, 8, 4, 2, 1, 0.5
-Data-dependent windowed interrupt generator
-VREF from external pin or VDD
Two comparators
-Programmable hysteresis
-Configurable to generate interrupts or reset
VDD Monitor and Brown-out Detector
On-Chip JTAG Debug
-On-chip emulation circuitry facilitates full-speed, non-intrusive, in-circuit
emulation
-Supports breakpoints, single stepping, watchpoints, inspect/modify
memory, and registers
-Superior performance to emulation systems using ICE-chips, target
pods, and sockets
-Fully compliant with IEEE 1149.1 specification
High-Speed 8051 µC Core
-Pipelined instruction architecture; executes 70% of instructions in 1 or 2
system clocks
-Up to 25 MIPS throughput with 25 MHz system clock
-Expanded interrupt handler; up to 21 interrupt sources
Memory
-256 bytes data RAM
-8 kB Flash; in-system programmable in 512 byte sectors (512 bytes are
reserved)
Digital Peripherals
-32 port I/O; all are 5 V tolerant
-Hardware SPI™ and UART serial ports available concurrently
-3 general-purpose 16-bit counter/timers
-Dedicated watchdog timer; bidirectional reset
Clock Sources
-Internal programmable oscillator: 2–16 MHz
-External oscillator: Crystal, RC, C, or Clock
-Can switch between clock sources on-the-fly
Supply Voltage: 2.7 to 3.6 V
-Typical operating current: 9 mA at 25 MHz
-Typical stop mode current: <0.1 uA
48-Pin TQFP
-Temperature Range: –40 to +85 °C
General Purpose Copyright © 2004 by Silicon Laboratories 6.15.2004
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
C8051F220
25 MIPS, 8 kB Flash, 8-Bit ADC, 48-Pin Mixed-Signal MCU
Selected Electrical Specifications
(TA = –40 to +85 C°, VDD = 2.7 V unless otherwise specified unless otherwise specified)
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; VDD Monitor Disabled
9
0.4
11
mA
mA
µA
Digital Supply Current
(shutdown)
Oscillator not running; VDD Monitor
Enabled
Oscillator not running; VDD Monitor
Disabled
7
0.1
µA
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 IOH = –3 mA, Port I/O push-pull VDD – 0.7 V
Port Output Low Voltage IOL = 8.5 mA 0.6 V
Input High Voltage 0.7 x VDD V
Input Low Voltage 0.3 x VDD 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 ±1/4 LSB
Signal to Noise Ratio 49 dB
Throughput Rate 100 ksps
Input Voltage Range 0 VREF V
COMPARATORS
Response Time | CP+ – CP- | = 100 mV 4 µs
Input Voltage Range –0.25 VDD + 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
0.95
0.17
-
-
-
-
-
-
-
1.00
0.22
9.00
7.00
0.50
9.00
7.00
1.20
0.15
1.05
0.27
-
-
-
-
-
MIN
(mm)
NOM
(mm)
MAX
(mm)
E
E1
D
D1
48
1
A1
e
b
PIN 1
IDENTIFIER
A2
A
C8051F226DK Development Kit
