Silicon Laboratories C8051F305 Technical data
C8051F305
25 MIPS, 2 kB Flash, 11-Pin Mixed-Signal MCU
Analog Peripherals
Comparator
- Programmable hysteresis and response time
- Configurable to generate interrupts or reset
- Low current (0.4 µA)
POR/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: 5.8 mA at 25 MHz
11 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 25 MIPS throughput with 25 MHz clock
- Expanded interrupt handler
Memory
- 256 bytes data RAM
- 2 kB Flash; in-system programmable in 512 byte sectors (512 bytes are
reserved)
Digital Peripherals
- 8 port I/O; all are 5 V tolerant
- Enhanced Hardware SMBus™ (I2C™ compatible) and UART serial
ports
- Programmable 16-bit counter/timer array with three capture/compare
modules, WDT
- 3 general-purpose 16-bit counter/timers
- Dedicated watchdog timer; bidirectional reset
- Real-time clock mode using PCA or timer and external clock source
Clock Sources
- Internal oscillator: 20 MHz nominal
- External oscillator: Crystal, RC, C, or Clock (1 or 2 pin modes)
- Can switch between clock sources on-the-fly
Package
- 11-pin MLP (Standard Lead and Lead-free packages)
Ordering Part Numbers
- Lead-free package: C8051F305-GM
- Standard package: C8051F305
VDD
GND
RST/C2CK
Analog/Digital
XTAL 1
XTAL 2
Power
C2D
POR
External
Oscillator
Circuit
Inte rnal
Oscillator
Debug HW
Brown-
Out
Reset
System Clock
8
0
5
1
C
o
SFR Bus
r
e
2 kB
FLASH
256 Byte
SRAM
Port 0
Latch
UART
Timer
0, 1, 2 /
RTC
PCA/
WDT
SMBus
P0.0
X
B
A
R
CP0
P
0
D
r
v
C2D
+
-
P0.1
P0.2/XTAL1
P0.3/XTAL2
P0.4/TX
P0.5/RX
P0.6/CN VST
P0.7/C2D
Small Form Factor Copyright © 2005 by Silicon Laboratories 4.8.2005
C8051F305
25 MIPS, 2 kB Flash, 11-Pin Mixed-Signal MCU
Selected Electrical Specifications
(TA = –40 to +85 C°, VDD = 2.7 V unless otherwise specified)
PARAMETER CONDITIONS MIN TYP MAX UNITS
GLOBAL CH ARACTERISTICS
Supply Voltage 2.7 3.6 V
Supply Current with
CPU active
Clock = 25 MHz
Clock = 1 MHz
Clock = 32 kHz; V
Monitor Disabled
DD
Supply Current (shutdown) Oscillator off; VDD Monitor Enabled
Oscillator off; V
Monitor Disabled
DD
Clock Frequency Range DC 25 MHz
INTERNAL OSCILLATOR
Frequency 15.0 20.0 25.0 MHz
COMPARATOR
Response Time Mode0 (CP+) – (CP-) = 100 mV 0.1 µs
Current Consumption Mode0 7.6 µA
Response Time Mode1 (CP+) – (CP-) = 100 mV 0.18 µs
Current Consumption Mode1 3.2 µA
Response Time Mode2 (CP+) – (CP-) = 100 mV 0.32 µs
Current Consumption Mode2 1.3 µA
Response Time Mode3 (CP+) – (CP-) = 100 mV 1 µs
Current Consumption Mode3 0.4 µA
5.8
0.34
11
10
<0.1
mA
mA
µA
µA
µA
Package Information
Bottom View
E2
b
L
be
A3
LT
k
Side D View
A
A1
A2
A3
b
D
D3
LB
e
E
A2
e
D2
R
D4
D
D2
D3
D4
E
E2
e
k
L
A
LB
LT
1
A
R
MM
MIN TYP MAX
0.80 0.90 1.00
0 0.02 0.05
0 0.65 1.00
0.25
0.18 0.23 0.30
3.00
0 2.20 2.25
2.27
0.386
3.00
1.36
0.5
0.27
0.45 0.55 0.65
0.36
0.37
0.09
C8051F300DK Development Kit
Side E View
A2
A3
e
A
A1
Small Form Factor Copyright © 2005 by Silicon Laboratories 4.8.2005
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
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