C8051F330 Silicon Laboratories Inc, C8051F330 Datasheet - Page 16
C8051F330
Manufacturer Part Number
C8051F330
Description
IC 8051 MCU 8K FLASH 20MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F33xr
Datasheet
1.C8051F330R.pdf
(208 pages)
Specifications of C8051F330
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
17
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 16x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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C8051F330/1, C8051F330D
1.1.
1.1.1. Fully 8051 Compatible
The C8051F330/1, C8051F330D family utilizes Silicon Labs' proprietary CIP-51 microcontroller core. The
CIP-51 is fully compatible with the MCS-51™ instruction set; standard 803x/805x assemblers and compil-
ers can be used to develop software. The CIP-51 core offers all the peripherals included with a standard
8052, including four 16-bit counter/timers, a full-duplex UART with extended baud rate configuration, an
enhanced SPI port, 768 bytes of internal RAM, 128 byte Special Function Register (SFR) address space,
and 17 I/O pins.
1.1.2. Improved Throughput
The CIP-51 employs a pipelined architecture that greatly increases its instruction throughput over the stan-
dard 8051 architecture. In a standard 8051, all instructions except for MUL and DIV take 12 or 24 system
clock cycles to execute with a maximum system clock of 12-to-24 MHz. By contrast, the CIP-51 core exe-
cutes 70% of its instructions in one or two system clock cycles, with only four instructions taking more than
four system clock cycles.
The CIP-51 has a total of 109 instructions. The table below shows the total number of instructions that
require each execution time.
With the CIP-51's maximum system clock at 25 MHz, it has a peak throughput of 25 MIPS. Figure 1.3
shows a comparison of peak throughputs for various 8-bit microcontroller cores with their maximum sys-
tem clocks.
16
Number of Instructions
Clocks to Execute
CIP-51™ Microcontroller Core
25
20
15
10
5
Figure 1.3. Comparison of Peak MCU Execution Speeds
26
1
(25 MHz clk)
Silicon Labs
CIP-51
50
2
(33 MHz clk)
2/3
PIC17C75x
Rev. 1.2
5
Microchip
14
3
(33 MHz clk)
3/4
Philips
80C51
7
4
3
(16 MHz clk)
ADuC812
8051
4/5
1
5
2
8
1