C8051F331-GMR Silicon Laboratories Inc, C8051F331-GMR Datasheet - Page 156

• Manufacturer Part Number: C8051F331-GMR
• Description: IC 8051 MCU 8K FLASH 20QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F33xr

Specifications of C8051F331-GMR

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• For Use With: 336-1451 - ADAPTER PROGRAM TOOLSTICK F330336-1264 - DEV KIT FOR C8051F330/F331
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

C8051F330/1/2/3/4/5
160
Notes:
Notes:
Table 16.1. Timer Settings for Standard Baud Rates Using the Internal 24.5 MHz
Table 16.2. Timer Settings for Standard Baud Rates Using an External 25.0 MHz
1. SCA1
2. X = Don’t care.
1. SCA1
2. X = Don’t care.
Baud Rate
Baud Rate
230400
115200
230400
115200
Target
57600
28800
14400
Target
57600
28800
14400
57600
28800
14400
(bps)
–
9600
2400
1200
(bps)
9600
2400
1200
9600
–
SCA0 and T1M bit definitions can be found in
SCA0 and T1M bit definitions can be found in
Baud Rate
Baud Rate
% Error
–0.32%
–0.32%
–0.32%
–0.32%
–0.32%
% Error
–0.47%
–0.01%
–0.01%
–0.01%
–0.47%
–0.47%
0.15%
0.15%
0.15%
0.45%
0.45%
0.15%
0.45%
0.45%
0.15%
tor Divide
tor Divide
Oscilla-
Factor
Oscilla-
Factor
10176
20448
10464
20832
1704
2544
1736
2608
1744
2608
106
212
426
848
108
218
872
432
864
434
Frequency: 24.5 MHz
Frequency: 25.0 MHz
Oscillator
Oscillator
Rev. 1.7
SYSCLK / 48
SYSCLK / 48
Timer Clock
Timer Clock
SYSCLK / 4
SYSCLK / 4
SYSCLK/12
SYSCLK/12
SYSCLK/48
SYSCLK/48
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
SYSCLK/4
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
Source
Source
Section 18.1
Section 18.1
SCA1–SCA0
SCA1–SCA0
(pre-scale
.
(pre-scale
.
select)
select)
XX
XX
XX
XX
01
01
10
10
XX
XX
11
11
11
11
11
01
00
00
10
10
2
2
1
1
T1M
T1M
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
1
1
Value (hex)
Value (hex)
Timer 1
Reload
Timer 1
Reload
0xCA
0x5D
0xCA
0x5D
0xE5
0xCB
0x93
0x27
0x93
0x27
0x93
0x27
0x93
0x2B
0xB9
0x2B
0x96
0x96
0x96
0x96