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C8051F310/1/2/3/4/5/6/7
8/16 kB ISP Flash MCU Family
Analog Peripherals
- 10-Bit ADC (C8051F310/1/2/3/6 only)
Up to 200 ksps
Up to 21, 17, or 13 external single-ended or differen-
tial inputs
VREF from external pin or VDD
Built-in temperature sensor
External conversion start input
- Comparators
Programmable hysteresis and response time
Configurable as interrupt or reset source
(Comparator0)
Low current (0.5 µA)
On-Chip Debug
- On-chip debug circuitry facilitates full speed,
non-intrusive in-system debug
(no emulator required)
- Provides breakpoints, single stepping,
inspect/modify memory and registers
- Superior performance to emulation systems using
ICE-Chips, target pods, and sockets
- Complete development kit
Supply Voltage 2.7 to 3.6 V
- Typical operating current: 5 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
- 1280 bytes internal data RAM (1024 + 256)
- 16 kB (C8051F310/1/6/7) or 8 kB (C8051F312/3/4/5)
Flash; In-system programmable in 512-byte sectors
Digital Peripherals
- 29/25/21 Port I/O;
All 5 V tolerant with high sink current
- Hardware enhanced UART, SMBus™, and SPI™
serial ports
- Four general purpose 16-bit counter/timers
- 16-bit programmable counter array (PCA) with five
capture/compare modules
- Real time clock capability using PCA or timer and
external clock source
Clock Sources
- Internal oscillator: 24.5 MHz with ±2% accuracy
supports crystal-less UART operation
- External oscillator: Crystal, RC, C, or clock (1 or 2
pin modes)
- Can switch between clock sources on-the-fly; useful
in power saving modes
Packages
- 32-pin LQFP (C8051F310/2/4)
- 28-pin QFN (C8051F311/3/5)
- 24-pin QFN (C8051F316/7)
ANALOG
PERIPHERALS
A
M
10-bit +
200ksps
U
X
ADC -
+
TEMP
SENSOR
C8051F310/1/2/3/6 only
-
VOLTAGE
COMPARATORS
DIGITAL I/O
UART
SMBus
SPI
PCA
Timer 0
Timer 1
Timer 2
Timer 3
Port 0
Port 1
Port 2
Port 3
PROGRAMMABLE PRECISION INTERNAL
OSCILLATOR
HIGH-SPEED CONTROLLER CORE
16 kB/8 kB
ISP FLASH
14
INTERRUPTS
8051 CPU
(25MIPS)
DEBUG
CIRCUITRY
1280 B
SRAM
POR WDT
Rev. 1.7 8/06
Copyright © 2006 by Silicon Laboratories
C8051F31x
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
http://www.Datasheet4U.com

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C8051F310/1/2/3/4/5/6/7
NOTES:
2 Rev. 1.7

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C8051F310/1/2/3/4/5/6/7
Table Of Contents
1. System Overview.................................................................................................... 17
1.1. CIP-51™ Microcontroller Core.......................................................................... 27
1.1.1. Fully 8051 Compatible.............................................................................. 27
1.1.2. Improved Throughput ............................................................................... 27
1.1.3. Additional Features .................................................................................. 28
1.2. On-Chip Memory............................................................................................... 29
1.3. On-Chip Debug Circuitry................................................................................... 30
1.4. Programmable Digital I/O and Crossbar ........................................................... 31
1.5. Serial Ports ....................................................................................................... 32
1.6. Programmable Counter Array ........................................................................... 32
1.7. 10-Bit Analog to Digital Converter..................................................................... 33
1.8. Comparators ..................................................................................................... 34
2. Absolute Maximum Ratings .................................................................................. 35
3. Global DC Electrical Characteristics .................................................................... 36
4. Pinout and Package Definitions............................................................................ 39
5. 10-Bit ADC (ADC0, C8051F310/1/2/3/6 only) ........................................................ 51
5.1. Analog Multiplexer ............................................................................................ 51
5.2. Temperature Sensor ......................................................................................... 52
5.3. Modes of Operation .......................................................................................... 54
5.3.1. Starting a Conversion............................................................................... 54
5.3.2. Tracking Modes........................................................................................ 55
5.3.3. Settling Time Requirements ..................................................................... 56
5.4. Programmable Window Detector ...................................................................... 61
5.4.1. Window Detector In Single-Ended Mode ................................................. 63
5.4.2. Window Detector In Differential Mode...................................................... 64
6. Voltage Reference (C8051F310/1/2/3/6 only)........................................................ 67
7. Comparators ........................................................................................................... 69
8. CIP-51 Microcontroller .......................................................................................... 79
8.1. Instruction Set ................................................................................................... 80
8.1.1. Instruction and CPU Timing ..................................................................... 80
8.1.2. MOVX Instruction and Program Memory ................................................. 81
8.2. Memory Organization........................................................................................ 85
8.2.1. Program Memory...................................................................................... 85
8.2.2. Data Memory............................................................................................ 86
8.2.3. General Purpose Registers ...................................................................... 86
8.2.4. Bit Addressable Locations........................................................................ 86
8.2.5. Stack ....................................................................................................... 86
8.2.6. Special Function Registers....................................................................... 87
8.2.7. Register Descriptions ............................................................................... 90
8.3. Interrupt Handler ............................................................................................... 93
8.3.1. MCU Interrupt Sources and Vectors ........................................................ 94
8.3.2. External Interrupts .................................................................................... 95
8.3.3. Interrupt Priorities ..................................................................................... 95
Rev. 1.7
3