C8051F413-GM Silicon Laboratories Inc, C8051F413-GM Datasheet - Page 32

• Manufacturer Part Number: C8051F413-GM
• Description: IC 8051 MCU 16K FLASH 28QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F41xr

Specifications of C8051F413-GM

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K 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: 2.25 KB
• 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 Dac: 2-ch x 12-bit
• 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: 336-1311

C8051F410/1/2/3
1.11. smaRTClock (Real Time Clock)
C8051F41x devices include a smaRTClock Peripheral (Real Time Clock). The smaRTClock has a dedi-
cated 32 kHz oscillator that can be configured for use with or without a crystal, a 47-bit smaRTClock timer
with alarm, a backup supply regulator, and 64 bytes of backup SRAM. When the backup supply voltage
(V
age (V
The smaRTClock allows a maximum of 137 year 47-bit independent time-keeping when used with a
32.768 kHz Watch Crystal and backup supply voltage of at least 1 V. The switchover logic powers smaRT-
Clock from the backup supply when the voltage at V
alarm and missing clock detector can interrupt the CIP-51, wake the internal oscillator from SUSPEND
mode, or generate a device reset if the smaRTClock timer reaches a pre-set value or the oscillator stops.
32
RTC-BACKUP
DD
) is lost.
Backup RAM
Regulator
V
Backup
XTAL4
RTC-BACKUP
) is powered, the smaRTClock peripheral remains fully functional even if the core supply volt-
64B
smaRTClock State Machine
smaRTClock Oscillator
Switchover
Figure 1.10. smaRTClock Block Diagram
Logic
XTAL3
CAPTUREn
RAMADDR
RAMDATA
Registers
RTC0XCN
ALARMn
RTC0CN
Internal
Interrupt
Rev. 1.1
RTC-BACKUP
smaRTClock
smaRTClock
Registers
RTC0ADR
Interface
RTC0KEY
RTC0DAT
is greater than V
47-Bit
Timer
DD
. The smaRTClock
V
DD