C8051F021-GQ Silicon Laboratories Inc, C8051F021-GQ Datasheet - Page 141

IC 8051 MCU 64K FLASH 64TQFP

C8051F021-GQ

Manufacturer Part Number
C8051F021-GQ
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Datasheets

Specifications of C8051F021-GQ

Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
64-TQFP, 64-VQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
32
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F0x
Core
8051
Data Bus Width
8 bit
Data Ram Size
4.25 KB
Interface Type
I2C/SMBus/SPI/UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
32
Number Of Timers
4
Operating Supply Voltage
2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F020DK
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 8-bit or 8-ch x 12-bit
On-chip Dac
2-ch x 12-bit
No. Of I/o's
32
Ram Memory Size
4352Byte
Cpu Speed
25MHz
No. Of Timers
5
No. Of Pwm Channels
5
Rohs Compliant
Yes
Data Rom Size
64 KB
A/d Bit Size
12 bit
A/d Channels Available
8
Height
1.05 mm
Length
10 mm
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Width
10 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1200 - DEV KIT FOR F020/F021/F022/F023
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1201

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
C8051F021-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F021-GQ
Manufacturer:
SILICON
Quantity:
1 400
Part Number:
C8051F021-GQR
Manufacturer:
SiliconL
Quantity:
2 000
Part Number:
C8051F021-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F021-GQR
Manufacturer:
SILICON
Quantity:
22
The lock bits can always be read and cleared to logic 0 regardless of the security setting applied to the block contain-
ing the security bytes. This allows additional blocks to be protected after the block containing the security bytes has
been locked. Important Note: The only means of removing a lock once set is to erase the entire program mem-
ory space by performing a JTAG erase operation (i.e. cannot be done in user firmware). Addressing either
security byte while performing a JTAG erase operation will automatically initiate erasure of the entire pro-
gram memory space (except for the reserved area). This erasure can only be performed via JTAG. If a non-
security byte in the 0xFBFF-0xFDFF page is addressed during the JTAG erasure, only that page (including the
security bytes) will be erased.
The FLASH Access Limit security feature (see Figure 15.1) protects proprietary program code and data from being
read by software running on the C8051F020/1/2/3. This feature provides support for OEMs that wish to program the
FLASH Read Lock Byte
Bits7-0: Each bit locks a corresponding block of memory. (Bit7 is MSB).
FLASH Write/Erase Lock Byte
Bits7-0: Each bit locks a corresponding block of memory.
FLASH access Limit Register (FLACL)
Read and Write/Erase Security Bits.
(Bit 7 is MSB.)
Bit
7
6
5
4
3
2
1
0
0xE000 - 0xFDFD
0xC000 - 0xDFFF
0xA000 - 0xBFFF
Memory Block
0x8000 - 0x9FFF
0x6000 - 0x7FFF
0x4000 - 0x5FFF
0x2000 - 0x3FFF
0x0000 - 0x1FFF
0: Read operations are locked (disabled) for corresponding block across the JTAG interface.
1: Read operations are unlocked (enabled) for corresponding block across the JTAG interface.
0: Write/Erase operations are locked (disabled) for corresponding block across the JTAG interface.
1: Write/Erase operations are unlocked (enabled) for corresponding block across the JTAG interface.
NOTE: When the highest block is locked, the security bytes may be written but not erased.
The content of this register is used as the high byte of the 16-bit software read limit address. This 16-
bit read limit address value is calculated as 0xNN00 where NN is replaced by content of this register
on reset. Software running at or above this address is prohibited from using the MOVX and MOVC
instructions to read, write, or erase FLASH locations below this address. Any attempts to read loca-
tions below this limit will return the value 0x00.
Figure 15.1. FLASH Program Memory Map and Security Bytes
Write/Erase Lock Byte
Software Read Limit
Read Lock Byte
SFLE = 0
Reserved
Rev. 1.4
0xFFFF
0xFE00
0xFDFF
0xFDFE
0xFDFD
0x0000
Memory Space
Program/Data
C8051F020/1/2/3
Scratchpad Memory
SFLE = 1
(Data only)
0x007F
0x0000
141

Related parts for C8051F021-GQ