C8051F330R Silicon Laboratories Inc, C8051F330R Datasheet - Page 98
C8051F330R
Manufacturer Part Number
C8051F330R
Description
IC 8051 MCU 8K FLASH 20MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F33xr
Datasheet
1.C8051F330R.pdf
(208 pages)
Specifications of C8051F330R
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
-
Other names
336-1069-2
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C8051F330/1, C8051F330D
The level of Flash security depends on the Flash access method. The three Flash access methods that
can be restricted are reads, writes, and erases from the C2 debug interface, user firmware executing on
unlocked pages, and user firmware executing on locked pages.
Accessing Flash from the C2 debug interface:
Accessing Flash from user firmware executing on an unlocked page:
Accessing Flash from user firmware executing on a locked page:
98
1. Any unlocked page may be read, written, or erased.
2. Locked pages cannot be read, written, or erased.
3. The page containing the Lock Byte may be read, written, or erased if it is unlocked.
4. Reading the contents of the Lock Byte is always permitted.
5. Unlocking Flash pages (changing ‘0’s to ‘1’s in the Lock Byte) requires the C2 Device Erase com-
6. The Reserved Area cannot be read, written, or erased.
1. Any unlocked page except the page containing the Lock Byte may be read, written, or erased.
2. Locked pages cannot be read, written, or erased.
3. The page containing the Lock Byte cannot be erased. It may be read or written only if it is
4. Reading the contents of the Lock Byte is always permitted.
5. Unlocking Flash pages (changing ‘0’s to ‘1’s in the Lock Byte) is not permitted.
6. The Reserved Area cannot be read, written, or erased. Any attempt to access the reserved area,
1. Any unlocked page except the page containing the Lock Byte may be read, written, or erased.
2. Any locked page except the page containing the Lock Byte may be read, written, or erased.
3. The page containing the Lock Byte cannot be erased. It may only be read or written.
4. Reading the contents of the Lock Byte is always permitted.
5. Unlocking Flash pages (changing ‘0’s to ‘1’s in the Lock Byte) is not permitted.
6. The Reserved Area cannot be read, written, or erased. Any attempt to access the reserved area,
mand, which erases all Flash pages including the page containing the Lock Byte and the Lock
Byte itself.
unlocked.
or any other locked page, will result in a Flash Error device reset.
or any other locked page, will result in a Flash Error device reset.
Rev. 1.2
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