C8051F317-GMR Silicon Laboratories Inc, C8051F317-GMR Datasheet - Page 170

• 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

C8051F310/1/2/3/4/5/6/7
170
Baud Rate
Baud Rate
230400
115200
230400
115200
Target
Target
57600
28800
14400
57600
28800
14400
57600
28800
14400
(bps)
(bps)
9600
2400
1200
9600
2400
1200
9600
Table 15.1. Timer Settings for Standard Baud Rates
Table 15.2. 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
–0.32%
–0.32%
–0.32%
–0.32%
–0.32%
–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%
Using an External 25 MHz Oscillator
Using the Internal Oscillator
tor Divide
tor Divide
Oscilla-
Oscilla-
Factor
Factor
10176
20448
10464
20832
1704
2544
1736
2608
1744
2608
106
212
426
848
108
218
434
872
432
864
Frequency: 24.5 MHz
Frequency: 25.0 MHz
Rev. 1.7
SYSCLK / 12
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
SYSCLK / 48
SYSCLK / 48
Timer Clock
Timer Clock
SYSCLK / 4
SYSCLK / 4
SYSCLK / 4
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
Source
Source
X = Don’t care
X = Don’t care
SCA1-SCA0
SCA1-SCA0
(pre-scale
(pre-scale
select)*
select)*
XX
XX
XX
01
00
00
10
10
XX
XX
XX
01
01
10
10
11
11
11
11
11
Section 17.1
Section 17.1
T1M*
T1M*
1
1
1
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
Reload Value
Reload Value
.
.
Timer 1
Timer 1
(hex)
0xCB
0xCA
0xCA
0x2B
0xB9
0x2B
(hex)
0x5D
0xE5
0x5D
0x96
0x96
0x96
0x96
0x93
0x27
0x93
0x27
0x93
0x27
0x93