C8051F305-GM Silicon Laboratories Inc, C8051F305-GM Datasheet - Page 139

• Manufacturer Part Number: C8051F305-GM
• Description: IC 8051 MCU 2K FLASH 11QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F30xr

Specifications of C8051F305-GM

• Program Memory Type: FLASH
• Program Memory Size: 2KB (2K x 8)
• Package / Case: 11-VQFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C/SMBus/UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 8
• Number Of Timers: 3
• 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: C8051F300DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• No. Of I/o's: 8
• Ram Memory Size: 256Byte
• Cpu Speed: 25MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• Package: 11QFN EP
• Device Core: 8051
• Family Name: C8051F30x
• Maximum Speed: 25 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1444 - ADAPTER PROGRAM TOOLSTICK F300
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1251

Table 14.3. Timer Settings for Standard Baud Rates Using an External 22.1184 MHz
Notes:
1. SCA1–SCA0 and T1M bit definitions can be found in
2. X = Don’t care.
Baud Rate
230400
115200
230400
115200
Target
57600
28800
14400
57600
28800
14400
(bps)
9600
2400
1200
9600
Baud Rate
% Error
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
0.00%
Oscillator
Factor
Divide
18432
1536
2304
9216
1536
2304
192
384
768
192
384
768
96
96
Frequency: 22.1184 MHz
Oscillator
Rev. 2.9
SYSCLK / 12
SYSCLK / 12
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
Timer Clock
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
SYSCLK
SYSCLK
SYSCLK
Source
Section 15.1
C8051F300/1/2/3/4/5
SCA1–SCA0
(pre-scale
.
select)
XX
XX
XX
00
00
00
10
10
11
11
11
11
11
11
2
2
2
1
T1M
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
Value (hex)
Timer 1
Reload
0xD0
0xC0
0xD0
0xA0
0xE0
0xA0
0xA0
0xFA
0xF4
0xE8
0xA0
0x70
0x40
0x40
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