C8051F317-GMR Silicon Laboratories Inc, C8051F317-GMR Datasheet - Page 171

• Manufacturer Part Number: C8051F317-GMR
• Description: MCU 8-Bit C8051F31x 8051 CISC 16KB Flash 3.3V 24-Pin QFN EP T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of C8051F317-GMR

• Package: 24QFN EP
• Device Core: 8051
• Family Name: C8051F31x
• Maximum Speed: 25 MHz
• Ram Size: 1.25 KB
• Program Memory Size: 16 KB
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 21
• Interface Type: I2C/SMBus/SPI/UART
• On-chip Adc: 17-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4

Baud Rate
Baud Rate
230400
115200
230400
115200
230400
115200
230400
115200
Target
Target
57600
28800
14400
57600
28800
14400
57600
28800
14400
57600
28800
14400
(bps)
(bps)
9600
2400
1200
9600
9600
2400
1200
9600
Table 15.3. Timer Settings for Standard Baud Rates
Table 15.4. Timer Settings for Standard Baud Rates
*Note: SCA1–SCA0 and T1M bit definitions can be found in
*Note: SCA1–SCA0 and T1M bit definitions can be found in
Baud Rate
Baud Rate
% Error
% Error
Using an External 22.1184 MHz Oscillator
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%
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%
Using an External 18.432 MHz Oscillator
tor Divide
tor Divide
Oscilla-
Oscilla-
Factor
Factor
15360
18432
1280
1920
7680
1280
1920
1536
2304
9216
1536
2304
160
320
640
160
320
640
192
384
768
192
384
768
80
80
96
96
Frequency: 22.1184 MHz
Frequency: 18.432 MHz
Rev. 1.7
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
Timer Clock
SYSCLK / 12
SYSCLK / 12
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
SYSCLK / 4
SYSCLK / 4
Timer Clock
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
Source
Source
C8051F310/1/2/3/4/5/6/7
X = Don’t care
X = Don’t care
SCA1-SCA0
SCA1-SCA0
(pre-scale
(pre-scale
select)*
select)*
XX
XX
XX
00
00
00
10
10
XX
XX
XX
11
11
11
11
11
11
01
01
00
10
10
11
11
11
11
11
11
Section 17.1
Section 17.1
T1M*
T1M*
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
Reload Value
.
.
Value (hex)
Timer 1
Timer 1
Reload
(hex)
0xD0
0xC0
0xA0
0xE0
0xA0
0xA0
0xFA
0xF4
0xE8
0xD0
0xA0
0x40
0x40
0x70
0xEC
0xD8
0xB0
0xB0
0xB0
0xB0
0xFB
0xD8
0xB0
0x60
0x60
0x60
0xF6
0x88
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