C8051F321-GM Silicon Laboratories Inc, C8051F321-GM Datasheet - Page 194

• Manufacturer Part Number: C8051F321-GM
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321-GM

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 21
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 2.25 KB
• Interface Type: I2C/SMBus/SPI/UART/USB
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 4
• 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: C8051F320DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 13-ch x 10-bit or 17-ch x 10-bit
• No. Of I/o's: 21
• Ram Memory Size: 1280Byte
• Cpu Speed: 25MHz
• No. Of Timers: 4
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1480 - DAUGHTER CARD TOOLSTCK C8051F321770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1449 - ADAPTER PROGRAM TOOLSTICK F321336-1260 - DEV KIT FOR C8051F320/F321
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1261

C8051F320/1
194
X = Don’t care
*Note: SCA1-SCA0 and T1M define the Timer Clock Source. Bit definitions for these values can be found in Section
Table 17.1. Timer Settings for Standard Baud Rates Using The Internal Oscillator
Baud Rate
“19.1. Timer 0 and Timer 1” on page 209.
230400
230400
115200
115200
Target
57600
28800
14400
57600
28800
14400
(bps)
9600
2400
1200
9600
2400
1200
Baud Rate
230769
115385
230769
115385
Actual
57692
28846
14423
57692
28846
14423
(bps)
9615
2404
1202
9615
2404
1202
Baud Rate
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
0.16%
Error
Oscillator
Divide
Factor
19968
1248
1664
4992
9984
2496
9984
104
208
416
832
104
208
416
832
52
Rev. 1.4
SYSCLK / 12
SYSCLK / 48
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
Timer Clock
SYSCLK / 4
SYSCLK / 4
SYSCLK / 4
SYSCLK / 4
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
Source
SCA1-SCA0
(pre-scale
select)*
XX
XX
XX
XX
XX
XX
XX
00
10
10
01
01
01
01
00
10
T1M*
1
1
1
1
0
0
0
0
1
1
1
0
0
0
0
0
Value (hex)
Timer 1
Reload
0xCC
0xCC
0xE6
0x98
0x30
0x98
0x64
0x30
0x98
0x98
0x30
0x98
0x30
0x98
0x98
0x30