C8051F902-GM Silicon Laboratories Inc, C8051F902-GM Datasheet - Page 68

• Manufacturer Part Number: C8051F902-GM
• Description: IC MCU 8BIT 8KB FLASH 24QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F9xxr

Specifications of C8051F902-GM

• Program Memory Type: FLASH
• Program Memory Size: 8KB (8K x 8)
• Package / Case: 24-QFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 3.6 V
• Data Converters: A/D 15x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F9x
• Core: 8051
• Data Ram Size: 768 B
• Interface Type: UART
• Maximum Clock Frequency: 25 MHz
• Number Of Timers: 4
• Operating Supply Voltage: 0.9 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: C8051F912DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit
• Package: 24QFN EP
• Device Core: 8051
• Family Name: C8051F90x
• Maximum Speed: 25 MHz
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1848-5

C8051F91x-C8051F90x
68
Table 5.1. Representative Conversion Times and Energy Consumption for the SAR
Highest nominal SAR clock
frequency
Total number of
conversion clocks required
Total tracking time (min)
Total time for one
conversion
ADC Throughput
Energy per conversion
Note: This table assumes that the 24.5 MHz precision oscillator is used for 8- and 10-bit modes, and the 20 MHz low
power oscillator is used for 12-bit mode. The values in the table assume that the oscillators run at their
nominal frequencies. The maximum SAR clock values given in Table 4.10 allow for maximum oscillation
frequencies of 25.0 MHz and 22 MHz for the precision and low-power oscillators, respectively, when using the
given SAR clock divider values. Energy calculations are for the ADC subsystem only and do not include CPU
current. Modes in
BLUE
are only available on 'F912 and 'F902 devices.
ADC with 1.65 V High-Speed VREF
(24.5 / 3)
351 ksps
2.85 us
1.5 us
8.2 nJ
8 bit
MHz
8.17
11
Normal Power Mode
3.09 us
(24.5 /
1.5 us
8.9 nJ
10 bit
MHz
ksps
8.17
323
13
3)
Rev. 1.0
(1.5+3*1.1)
6.67 MHz
(20.0 / 3)
79 ksps
12.6 us
36.5 nJ
(13*4)
4.8 us
12 bit
52
(24.5 / 6)
238 ksps
4.19 us
1.5 us
6.5 nJ
8 bit
MHz
4.08
11
Low Power Mode
(24.5 / 6)
214 ksps
4.68 us
1.5 us
7.3 nJ
10 bit
MHz
4.08
13
(1.5+3*1.1)
4.00 MHz
(20.0 / 5)
56 ksps
17.8 us
27.7 nJ
12 bit
(13*4)
4.8 us
52