C8051F040-GQ Silicon Laboratories Inc, C8051F040-GQ Datasheet - Page 105

• Manufacturer Part Number: C8051F040-GQ
• Description: IC 8051 MCU 64K FLASH 100TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F04xr

Specifications of C8051F040-GQ

• Program Memory Type: FLASH
• Program Memory Size: 64KB (64K x 8)
• Package / Case: 100-TQFP, 100-VQFP
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: CAN, EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 64
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x8b, 13x12b; D/A 2x10b, 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F0x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 4.25 KB
• Interface Type: CAN/SMBus/SPI/UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 64
• Number Of Timers: 5
• 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: C8051F040DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 8-bit or 13-ch x 12-bit
• On-chip Dac: 2-ch x 12-bit
• No. Of I/o's: 64
• Ram Memory Size: 4352Byte
• Cpu Speed: 25MHz
• No. Of Timers: 5
• Rohs Compliant: Yes
• Data Rom Size: 64 KB
• A/d Bit Size: 12 bit
• A/d Channels Available: 13
• Height: 1 mm
• Length: 14 mm
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 2.7 V
• Width: 14 mm
• Package: 100TQFP
• Device Core: 8051
• Family Name: C8051F04x
• Maximum Speed: 25 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 336-1205 - DEV KIT FOR F040/F041/F042/F043
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1204

8.
Each C8051F040/1/2/3 devices include two on-chip 12-bit voltage-mode Digital-to-Analog Converters
(DACs). Each DAC has an output swing of 0 V to (VREF – 1 LSB) for a corresponding input code range of
0x000 to 0xFFF. The DACs may be enabled/disabled via their corresponding control registers, DAC0CN
and DAC1CN. While disabled, the DAC output is maintained in a high-impedance state, and the DAC sup-
ply current falls to 1 µA or less. The voltage reference for each DAC is supplied at the VREFD pin
(C8051F040/2 devices) or the VREF pin (C8051F041/3 devices). Note that the VREF pin on C8051F041/3
devices may be driven by the internal voltage reference or an external source. If the internal voltage refer-
ence is used it must be enabled in order for the DAC outputs to be valid. See
ence (C8051F040/2/4/6)” on page 113
page 117
DACs, 12-Bit Voltage Mode (C8051F040/1/2/3 Only)
for more information on configuring the voltage reference for the DACs.
DAC0MD1
DAC0MD0
DAC1MD1
DAC1MD0
DAC0DF2
DAC0DF1
DAC0DF0
DAC1DF2
DAC1DF1
DAC1DF0
DAC0EN
DAC1EN
Figure 8.1. DAC Functional Block Diagram
8
8
8
8
8
8
8
8
or
Section “10. Voltage Reference (C8051F041/3/5/7)” on
12
12
Rev. 1.4
REF
REF
DAC0
DAC1
C8051F040/1/2/3/4/5/6/7
AGND
AGND
Section “9. Voltage Refer-
AV+
AV+
DAC0
DAC1
105