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PDF C8051F911 Data sheet ( Hoja de datos )

Número de pieza C8051F911
Descripción (C8051F90X / C8051F91X) 12/10-Bit ADC MCU
Fabricantes Silicon Laboratories 
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C8051F91x-C8051F90x
Single/Dual Battery, 0.9–3.6 V, 16–8 kB, SmaRTClock, 12/10-Bit ADC MCU
Ultra-Low Power
- 160 uA/MHz in active mode (24.5 MHz clock)
- 2 us wake-up time (two-cell mode)
- 10 nA sleep mode with memory retention;
- 50 nA sleep mode with brownout detector
- 300 nA sleep mode with LFO (‘F912/02 only)
- 600 nA sleep mode with external crystal
Supply Voltage 0.9 to 3.6 V
- One-cell mode supports 0.9 to 1.8 V operation
(‘F911/01). ‘F912 and ‘F902 devices can operate
from 0.9 to 3.6 V continuously
- Two-cell mode supports 1.8 to 3.6 V operation
- Built-in dc-dc converter with 1.8 to 3.3 V output for
use in one-cell mode
- Built-in LDO regulator allows a high analog supply
voltage and low digital core voltage
- 2 built in supply monitors (brownout detectors)
12-Bit or 10-Bit Analog to Digital Converter
- ±1 LSB INL (10-bit mode); ±1.5 LSB INL (12-bit
mode, ‘F912/02 only) no missing codes
- Programmable throughput up to 300 ksps (10-Bit
Mode) or 75 ksps (12-bit mode, ‘F912/02 only)
- Up to 15 external inputs
- On-chip voltage reference
- On-Chip PGA allows measuring voltages up to twice
the reference voltage
- 16-bit auto-averaging accumulator with burst mode
provides increased ADC resolution
- Data dependent windowed interrupt generator
- Built-in temperature sensor
Two Comparators
- Programmable hysteresis and response time
- Configurable as wake-up or reset source
- Up to 15 Capacitive Touch Sense Inputs
6-Bit Programmable Current Reference
- Up to ±500 µA. Can be used as a bias or for
generating a custom reference voltage
- PWM enhanced mode on ‘F912/02 devices
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
- 768 bytes RAM
- 16 kB (‘F912/1), or 8 kB (‘F902/1) Flash; In-system
programmable
Digital Peripherals
- 16 port I/O; All 5 V tolerant with high sink
current and programmable drive strength
- Hardware SMBus™ (I2C™ Compatible), 2 x SPI™,
and UART serial ports available concurrently
- Four general purpose 16-bit counter/timers
- Programmable 16-bit counter/timer array with six
capture/compare modules and watchdog timer
Clock Sources
- Internal oscillators: 24.5 MHz, 2% accuracy
supports UART operation; 20 MHz low power
oscillator requires very little bias current.
- External oscillator: Crystal, RC, C, or CMOS clock
- SmaRTClock oscillator: 32 kHz crystal or internal
low frequency oscillator (‘F912/02) or self-oscillate
mode
- Can switch between clock sources on-the-fly; useful
in implementing various power saving modes
On-Chip Debug
- On-chip debug circuitry facilitates full-speed, non-
intrusive in-system debug (no emulator required)
- Provides 4 breakpoints, single stepping
- Inspect/modify memory and registers
- Complete development kit
Packages
- 24-pin QFN (4 x 4 mm)
- 24-pin QSOP (easy to hand-solder)
- Tested die available
Temperature Range: –40 to +85 °C
ANALOG
DIGITAL I/O
PERIPHERALS
A 12/10-bit
M 75/300 ksps IREF
U
X
ADC
TEMP
SENSOR
VREF
VREG
++
––
VOLTAGE
COMPARATORS
UART
SMBus
2 x SPI
PCA
Timer 0
Timer 1
Timer 2
Timer 3
CRC
Port 0
Port 1
Port 2
24.5 MHz PRECISION
INTERNAL OSCILLATOR
20 MHz LOW POWER
INTERNAL OSCILLATOR
External Oscillator
HARDWARE SmaRTClock
HIGH-SPEED CONTROLLER CORE
16/8 kB
ISP FLASH
FLEXIBLE
INTERRUPTS
8051 CPU
(25 MIPS)
DEBUG
CIRCUITRY
768 B SRAM
POR WDT
Rev. 1.0 9/10
Copyright © 2010 by Silicon Laboratories
C8051F91x-C8051F90x
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C8051F911 pdf
C8051F91x-C8051F90x
13.5.3.System Clock ......................................................................................... 138
13.6.Minimizing Flash Read Current ...................................................................... 139
14. Power Management.............................................................................................. 143
14.1.Normal Mode .................................................................................................. 144
14.2.Idle Mode........................................................................................................ 145
14.3.Stop Mode ...................................................................................................... 145
14.4.Suspend Mode ............................................................................................... 146
14.5.Sleep Mode .................................................................................................... 146
14.6.Configuring Wakeup Sources......................................................................... 147
14.7.Determining the Event that Caused the Last Wakeup.................................... 148
14.8.Power Management Specifications ................................................................ 151
15. Cyclic Redundancy Check Unit (CRC0) ............................................................. 152
15.1.CRC Algorithm................................................................................................ 152
15.2.Preparing for a CRC Calculation .................................................................... 154
15.3.Performing a CRC Calculation ....................................................................... 154
15.4.Accessing the CRC0 Result ........................................................................... 154
15.5.CRC0 Bit Reverse Feature............................................................................. 159
16. On-Chip DC-DC Converter (DC0) ........................................................................ 160
16.1.Startup Behavior............................................................................................. 161
16.2.High Power Applications ............................................................................. 162
16.3.Pulse Skipping Mode...................................................................................... 162
16.4.Enabling the DC-DC Converter ...................................................................... 163
16.5.Minimizing Power Supply Noise ..................................................................... 164
16.6.Selecting the Optimum Switch Size................................................................ 164
16.7.DC-DC Converter Clocking Options ............................................................... 164
16.8.DC-DC Converter Behavior in Sleep Mode .................................................... 164
16.9.Bypass Mode (C8051F912/02 only) ............................................................... 165
16.10.Low Power Mode (C8051F912/02 only) ....................................................... 165
16.11.Passive Diode Mode (C8051F912/02 only).................................................. 166
16.12.DC-DC Converter Register Descriptions ...................................................... 167
16.13.DC-DC Converter Specifications .................................................................. 169
17. Voltage Regulator (VREG0) ................................................................................. 170
17.1.Voltage Regulator Electrical Specifications .................................................... 170
18. Reset Sources....................................................................................................... 171
18.1.Power-On (VBAT Supply Monitor) Reset ....................................................... 172
18.2.Power-Fail (VDD/DC+ Supply Monitor) Reset................................................ 173
18.3.External Reset ................................................................................................ 176
18.4.Missing Clock Detector Reset ........................................................................ 176
18.5.Comparator0 Reset ........................................................................................ 176
18.6.PCA Watchdog Timer Reset .......................................................................... 176
18.7.Flash Error Reset ........................................................................................... 177
18.8.SmaRTClock (Real Time Clock) Reset .......................................................... 177
18.9.Software Reset ............................................................................................... 177
19. Clocking Sources ................................................................................................. 179
19.1.Programmable Precision Internal Oscillator ................................................... 180
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C8051F911 arduino
C8051F91x-C8051F90x
Figure 25.2. T0 Mode 2 Block Diagram.................................................................. 274
Figure 25.3. T0 Mode 3 Block Diagram.................................................................. 275
Figure 25.4. Timer 2 16-Bit Mode Block Diagram .................................................. 280
Figure 25.5. Timer 2 8-Bit Mode Block Diagram .................................................... 281
Figure 25.6. Timer 2 Capture Mode Block Diagram ............................................... 282
Figure 25.7. Timer 3 16-Bit Mode Block Diagram .................................................. 286
Figure 25.8. Timer 3 8-Bit Mode Block Diagram. ................................................... 287
Figure 25.9. Timer 3 Capture Mode Block Diagram ............................................... 288
Figure 26.1. PCA Block Diagram............................................................................ 292
Figure 26.2. PCA Counter/Timer Block Diagram.................................................... 294
Figure 26.3. PCA Interrupt Block Diagram ............................................................. 295
Figure 26.4. PCA Capture Mode Diagram.............................................................. 297
Figure 26.5. PCA Software Timer Mode Diagram .................................................. 298
Figure 26.6. PCA High-Speed Output Mode Diagram............................................ 299
Figure 26.7. PCA Frequency Output Mode ............................................................ 300
Figure 26.8. PCA 8-Bit PWM Mode Diagram ......................................................... 301
Figure 26.9. PCA 9, 10 and 11-Bit PWM Mode Diagram ....................................... 302
Figure 26.10. PCA 16-Bit PWM Mode.................................................................... 303
Figure 26.11. PCA Module 5 with Watchdog Timer Enabled ................................. 304
Figure 27.1. Typical C2 Pin Sharing....................................................................... 315
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