C8051F349-GM Silicon Laboratories Inc, C8051F349-GM Datasheet - Page 220
![IC 8051 MCU 32K FLASH MEM 32-QFN](/photos/12/27/122747/c8051f349-gm_sml.jpg)
C8051F349-GM
Manufacturer Part Number
C8051F349-GM
Description
IC 8051 MCU 32K FLASH MEM 32-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F34xr
Datasheet
1.C8051F349-GQ.pdf
(276 pages)
Specifications of C8051F349-GM
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Package / Case
32-QFN
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
2304 B
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Operating Supply Voltage
2.7 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-F34X, KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F340DK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1748 - ADAPTER TOOLSTICK FOR C8051F34X
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1349-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F349-GM
Manufacturer:
Silicon Labs
Quantity:
135
- Current page: 220 of 276
- Download datasheet (2Mb)
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
220
Bit7:
Bit6:
Bits5–2: RESERVED: Read = 0000b; Must write 0000b.
Bits1–0: SB1PS[1:0]: Baud Rate Prescaler Select.
Bits7–0: SBUF1[7:0]: Serial Data Buffer Bits 7–0 (MSB-LSB)
Reserved SB1RUN Reserved Reserved Reserved Reserved SB1PS1
R/W
R/W
Bit7
Bit7
SFR Definition 19.4. SBCON1: UART1 Baud Rate Generator Control
RESERVED: Read = 0b; Must write 0b.
SB1RUN: Baud Rate Generator Enable.
0: Baud Rate Generator is disabled. UART1 will not function.
1: Baud Rate Generator is enabled.
00: Prescaler = 12
01: Prescaler = 4
10: Prescaler = 48
11: Prescaler = 1
This SFR is used to both send data from the UART and to read received data from the
UART1 receive FIFO.
Write: Writing a byte to SBUF1 initiates the transmission. When data is written to SBUF1, it
first goes to the Transmit Holding Register, where it is held for serial transmission. When the
transmit shift register is available, data is transferred into the shift register, and SBUF1 may
be written again.
Read: Reading SBUF1 retrieves data from the receive FIFO. When read, the oldest byte in
the receive FIFO is returned, and removed from the FIFO. Up to three bytes may be held in
the FIFO. If there are additional bytes available in the FIFO, the RI1 bit will remain at logic
‘1’, even after being cleared by software.
R/W
R/W
Bit6
Bit6
SFR Definition 19.3. SBUF1: UART1 Data Buffer
R/W
R/W
Bit5
Bit5
R/W
R/W
Bit4
Bit4
Rev. 1.3
R/W
R/W
Bit3
Bit3
R/W
R/W
Bit2
Bit2
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
SB1PS0
R/W
R/W
Bit0
Bit0
0xD3
0xAC
00000000
00000000
Reset Value
Reset Value
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