C8051F021-GQ Silicon Laboratories Inc, C8051F021-GQ Datasheet - Page 29

IC 8051 MCU 64K FLASH 64TQFP

C8051F021-GQ

Manufacturer Part Number
C8051F021-GQ
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Datasheets

Specifications of C8051F021-GQ

Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
64-TQFP, 64-VQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
32
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x12b; D/A 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
I2C/SMBus/SPI/UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
32
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
C8051F020DK
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 8-bit or 8-ch x 12-bit
On-chip Dac
2-ch x 12-bit
No. Of I/o's
32
Ram Memory Size
4352Byte
Cpu Speed
25MHz
No. Of Timers
5
No. Of Pwm Channels
5
Rohs Compliant
Yes
Data Rom Size
64 KB
A/d Bit Size
12 bit
A/d Channels Available
8
Height
1.05 mm
Length
10 mm
Supply Voltage (max)
3.6 V
Supply Voltage (min)
2.7 V
Width
10 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1200 - DEV KIT FOR F020/F021/F022/F023
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1201

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
C8051F021-GQR
Manufacturer:
SiliconL
Quantity:
2 000
Price:
1.8.
The C8051F020/1/2/3 has an on-board 8-bit SAR ADC (ADC1) with an 8-channel input multiplexer and programma-
ble gain amplifier. This ADC features a 500 ksps maximum throughput and true 8-bit accuracy with an INL of
±1LSB. Eight input pins are available for measurement. The ADC is under full control of the CIP-51 microcontroller
via the Special Function Registers. The ADC1 voltage reference is selected between the analog power supply (AV+)
and an external VREF pin. On C8051F020/2 devices, ADC1 has its own dedicated VREF1 input pin; on
C8051F021/3 devices, ADC1 shares the VREFA input pin with the 12/10-bit ADC0. User software may put ADC1
into shutdown mode to save power.
A programmable gain amplifier follows the analog multiplexer. The gain stage can be especially useful when differ-
ent ADC input channels have widely varied input voltage signals, or when it is necessary to "zoom in" on a signal
with a large DC offset (in differential mode, a DAC could be used to provide the DC offset). The PGA gain can be set
in software to 0.5, 1, 2, or 4.
A flexible conversion scheduling system allows ADC1 conversions to be initiated by software commands, timer
overflows, or an external input signal. ADC1 conversions may also be synchronized with ADC0 software-com-
manded conversions. Conversion completions are indicated by a status bit and an interrupt (if enabled), and the
resulting 8-bit data word is latched into an SFR upon completion.
8-Bit Analog to Digital Converter
AIN1.0
AIN1.1
AIN1.2
AIN1.3
AIN1.4
AIN1.5
AIN1.6
AIN1.7
Analog Multiplexer
AMUX
8-to-1
Figure 1.12. 8-Bit ADC Diagram
Programmable Gain
X
Amplifier
External VREF
Configuration, Control, and Data Registers
+
-
AV+
AV+
Pin
Rev. 1.4
ADC
VREF
8-Bit
SAR
Start Conversion
8
C8051F020/1/2/3
ADC Data
Register
Write to AD1BUSY
Timer 3 Overflow
CNVSTR Input
Timer 2 Overflow
Write to AD0BUSY
(synchronized with
ADC0)
Conversion
Complete
Interrupt
29

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