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C8051F330/1/2/3/4/5
Mixed Signal ISP Flash MCU Family
Analog Peripherals
High Speed 8051 µC Core
- 10-Bit ADC (‘F330/2/4 only)
Up to 200 ksps
Up to 16 external single-ended or differential inputs
VREF from internal VREF, external pin or VDD
Internal or external start of conversion source
Built-in temperature sensor
- 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
- 10-Bit Current Output DAC (‘F330 only)
- 768 bytes internal data RAM (256 + 512)
- Comparator
Programmable hysteresis and response time
Configurable as interrupt or reset source
Low current (0.4 µA)
www.DataSheet4U.cOonm-Chip Debug
- On-chip debug circuitry facilitates full speed, non-
mintrusive in-system debug (no emulator required)
o- Provides breakpoints, single stepping,
inspect/modify memory and registers
.c- Superior performance to emulation systems using
ICE-chips, target pods, and sockets
- Low cost, complete development kit
USupply Voltage 2.7 to 3.6 V
- Typical operating current: 6.4 mA at 25 MHz;
t49 µA at 32 kHz
- Typical stop mode current: 0.1 µA
heeTemperature Range: –40 to +85 °C
- 8 kB (‘F330/1), 4 kB (‘F332/3), or 2 kB (‘F334/5)
Flash; In-system programmable in 512-byte Sec-
tors—512 bytes are reserved in the 8 kB devices
Digital Peripherals
- 17 Port I/O; All 5 V tolerant with high sink current
- Hardware enhanced UART, SMBus™, and
enhanced SPI™ serial ports
- Four general purpose 16-bit counter/timers
- 16-Bit programmable counter array (PCA) with three
capture/compare modules
- Real time clock mode using PCA or timer and exter-
nal clock source
Clock Sources
- Two internal oscillators:
24.5 MHz with ±2% accuracy supports crystal-less
UART operation
80/40/20/10 kHz low frequency, low power
- 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
20-Pin QFN or 20-pin PDIP
taSANALOG
aPERIPHERALS
.DA
M
U
X
10-bit
200 ksps
ADC
10-bit
Current
DAC
‘F330 only
wTEMP
SENSOR
ww ‘F330/2/4 only
+
-
VOLTAGE
COMPARATOR
DIGITAL I/O
UART
SMBus
Port 0
SPI
PCA
Port 1
Timer 0
Timer 1
P2.0
Timer 2
Timer 3
24.5 MHz PRECISION
LOW FREQUENCY INTERNAL
INTERNAL OSCILLATOR
OSCILLATOR
HIGH-SPEED CONTROLLER CORE
2/4/8 kB
ISP FLASH
omFLEXIBLE
.cINTERRUPTS
8051 CPU
(25 MIPS)
DEBUG
CIRCUITRY
768 B SRAM
POR WDT
taSheet4URev. 1.4 7/05
Copyright © 2005 by Silicon Laboratories
C8051F33x
www.DaThis information applies to a product under development. Its characteristics and specifications are subject to change without notice.

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C8051F330/1/2/3/4/5
NOTES:
www.DataSheet4U.com
2 Rev. 1.4

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C8051F330/1/2/3/4/5
Table of Contents
1. System Overview.................................................................................................... 17
1.1. CIP-51™ Microcontroller Core.......................................................................... 22
1.1.1. Fully 8051 Compatible.............................................................................. 22
1.1.2. Improved Throughput ............................................................................... 22
1.1.3. Additional Features .................................................................................. 23
1.2. On-Chip Memory............................................................................................... 24
1.3. On-Chip Debug Circuitry................................................................................... 25
1.4. Programmable Digital I/O and Crossbar ........................................................... 26
www.DataSheet4U.com 1.5. Serial Ports ....................................................................................................... 26
1.6. Programmable Counter Array ........................................................................... 27
1.7. 10-Bit Analog to Digital Converter..................................................................... 28
1.8. Comparators ..................................................................................................... 29
1.9. 10-bit Current Output DAC................................................................................ 30
2. Absolute Maximum Ratings .................................................................................. 31
3. Global DC Electrical Characteristics .................................................................... 32
4. Pinout and Package Definitions............................................................................ 34
5. 10-Bit ADC (ADC0, C8051F330/2/4 only) .............................................................. 43
5.1. Analog Multiplexer ............................................................................................ 43
5.2. Temperature Sensor ......................................................................................... 44
5.3. Modes of Operation .......................................................................................... 45
5.3.1. Starting a Conversion............................................................................... 46
5.3.2. Tracking Modes........................................................................................ 47
5.3.3. Settling Time Requirements ..................................................................... 48
5.4. Programmable Window Detector ...................................................................... 53
5.4.1. Window Detector In Single-Ended Mode ................................................. 55
5.4.2. Window Detector In Differential Mode...................................................... 56
6. 10-Bit Current Mode DAC (IDA0, C8051F330 only).............................................. 59
6.1. IDA0 Output Scheduling ................................................................................... 59
6.1.1. Update Output On-Demand ..................................................................... 59
6.1.2. Update Output Based on Timer Overflow ................................................ 60
6.1.3. Update Output Based on CNVSTR Edge................................................. 60
6.2. IDAC Output Mapping....................................................................................... 60
7. Voltage Reference (C8051F330/2/4 only).............................................................. 63
8. Comparator0 ......................................................................................................... 67
9. CIP-51 Microcontroller .......................................................................................... 73
9.1. Instruction Set ................................................................................................... 74
9.1.1. Instruction and CPU Timing ..................................................................... 74
9.1.2. MOVX Instruction and Program Memory ................................................. 74
9.2. Memory Organization........................................................................................ 78
9.2.1. Program Memory...................................................................................... 79
9.2.2. Data Memory............................................................................................ 80
9.2.3. General Purpose Registers ...................................................................... 80
9.2.4. Bit Addressable Locations........................................................................ 80
Rev. 1.4
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