C8051T627-B-GM Silicon Labs, C8051T627-B-GM Datasheet - Page 224

• Manufacturer Part Number: C8051T627-B-GM
• Description: 8-bit Microcontrollers - MCU UBS, 64K OTP MCU
• Manufacturer: Silicon Labs

Specifications of C8051T627-B-GM

• Rohs: yes
• Core: 8051
• Processor Series: C8051T627
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 3328 B
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 5.25 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFN-32
• Mounting Style: SMD/SMT
• Program Memory Type: EPROM

C8051T620/1/6/7 & C8051T320/1/2/3
A quick reference for typical baud rates and system clock frequencies is given in Table 26.1.
Table 26.1. Baud Rate Generator Settings for Standard Baud Rates
224
Target Baud
Rate (bps)
230400
115200
230400
115200
230400
115200
57600
28800
14400
57600
28800
14400
57600
28800
14400
9600
2400
1200
9600
2400
1200
9600
2400
1200
Baud Rate
Actual Baud
Rate (bps)
230769
115385
230769
115385
230769
115385
57692
28846
14388
57692
28777
14406
57554
28812
14397
9600
2400
1200
9600
2400
1200
9600
2400
1200
=
Equation 26.1. UART1 Baud Rate
-------------------------------------------------------------------------- -

65536 (SBRLH1:SBRLL1)
Baud Rate
0.16%
0.16%
0.16%
0.16%
0.08%
0.16%
0.16%
0.16%
0.08%
0.04%
0.16%
0.16%
0.08%
0.04%
0.02%
Error
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
0.0%
–
SYSCLK
Rev. 1.2
Oscillator
Factor
Divide
10000
10000
20000
20000
40000
1250
5000
1666
2500
1666
3334
5000
104
208
416
834
104
208
416
834
416
834
208
52
(Prescaler Bits)

SB1PS[1:0]

1
-- -
2
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11

--------------------- -
Prescaler
1
SBRLH1:SBRLL1
Reload Value in
0xFFCC
0xFFCC
0xFCBF
0xFCBF
0xFFE6
0xFE5F
0xFD8F
0xF63C
0xEC78
0xFE5F
0xFB1E
0xEC78
0xD8F0
0xFE5F
0xF97D
0xF63C
0xD8F0
0xB1E0
0xFF98
0xFF30
0xFF98
0xFF30
0xFF98
0xFF30