C8051F411-GM Silicon Laboratories Inc, C8051F411-GM Datasheet - Page 180

IC 8051 MCU 32K FLASH 28QFN

C8051F411-GM

Manufacturer Part Number
C8051F411-GM
Description
IC 8051 MCU 32K FLASH 28QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F41xr
Datasheets

Specifications of C8051F411-GM

Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
28-QFN
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
20
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.25 V
Data Converters
A/D 20x12b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F4x
Core
8051
Data Bus Width
8 bit
Data Ram Size
2368 B
Interface Type
I2C, SMBus, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
20
Number Of Timers
4
Operating Supply Voltage
2 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F410DK
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 20 Channel
On-chip Dac
12 bit, 2 Channel
No. Of I/o's
20
Ram Memory Size
2368Byte
Cpu Speed
50MHz
No. Of Timers
4
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1454 - ADAPTER PROGRAM TOOLSTICK F411336-1317 - KIT EVAL FOR C8051F411336-1314 - KIT DEV FOR C8051F41X
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1309

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C8051F410/1/2/3
180
Bits 7–0: RTC0STATE. smaRTClock State Bits
R/W
Bit7
Read:
0x00: smaRTClock Interface is locked.
0x01: smaRTClock Interface is locked. First key code (0xA5) has been written, waiting for
second key code.
0x02: smaRTClock Interface is unlocked. First and second key codes (0xA5, 0xF1) have
been written.
0x03: smaRTClock Interface is disabled until the next system reset.
Write:
When RTC0STATE = 0x00 (locked), writing 0xA5 followed by 0xF1 unlocks the smaRTClock
Interface.
When RTC0STATE = 0x01 (waiting for second key code), writing any value other than the
second key code (0xF1) will change RTC0STATE to 0x03 and disable the smaRTClock
Interface until the next system reset.
When RTC0STATE = 0x02 (unlocked), any write to RTC0KEY will lock the smaRTClock
Interface.
When RTC0STATE = 0x03 (disabled), writes to RTC0KEY have no effect.
SFR Definition 20.1. RTC0KEY: smaRTClock Lock and Key
R/W
Bit6
R/W
Bit5
R/W
Bit4
Rev. 1.1
R/W
Bit3
R/W
Bit2
R/W
Bit1
SFR Address:
R/W
Bit0
0xAE
00000000
Reset Value

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