C8051F021-GQ Silicon Laboratories Inc, C8051F021-GQ Datasheet - Page 80

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
C8051F020/1/2/3
Figure 7.6. ADC1CN: ADC1 Control Register (C8051F020/1/2/3)
R/W
R/W
R/W
AD1EN
AD1TM
AD1INT AD1BUSY AD1CM2 AD1CM1
Bit7
Bit6
Bit5
Bit7:
AD1EN: ADC1 Enable Bit.
0: ADC1 Disabled. ADC1 is in low-power shutdown.
1: ADC1 Enabled. ADC1 is active and ready for data conversions.
Bit6:
AD1TM: ADC1 Track Mode Bit.
0: Normal Track Mode: When ADC1 is enabled, tracking is continuous unless a conversion is in pro-
cess.
1: Low-power Track Mode: Tracking Defined by AD1STM2-0 bits (see below).
Bit5:
AD1INT: ADC1 Conversion Complete Interrupt Flag.
This flag must be cleared by software.
0: ADC1 has not completed a data conversion since the last time this flag was cleared.
1: ADC1 has completed a data conversion.
Bit4:
AD1BUSY: ADC1 Busy Bit.
Read:
0: ADC1 Conversion is complete or a conversion is not currently in progress. AD1INT is set to logic
1 on the falling edge of AD1BUSY.
1: ADC1 Conversion is in progress.
Write:
0: No Effect.
1: Initiates ADC1 Conversion if AD1STM2-0 = 000b
Bit3-1:
AD1CM2-0: ADC1 Start of Conversion Mode Select.
AD1TM = 0:
000: ADC1 conversion initiated on every write of ‘1’ to AD1BUSY.
001: ADC1 conversion initiated on overflow of Timer 3.
010: ADC1 conversion initiated on rising edge of external CNVSTR.
011: ADC1 conversion initiated on overflow of Timer 2.
1xx: ADC1 conversion initiated on write of ‘1’ to AD0BUSY (synchronized with ADC0 software-
commanded conversions).
AD1TM = 1:
000: Tracking initiated on write of ‘1’ to AD1BUSY and lasts 3 SAR1 clocks, followed by conver-
sion.
001: Tracking initiated on overflow of Timer 3 and lasts 3 SAR1 clocks, followed by conversion.
010: ADC1 tracks only when CNVSTR input is logic low; conversion starts on rising CNVSTR edge.
011: Tracking initiated on overflow of Timer 2 and lasts 3 SAR1 clocks, followed by conversion.
1xx: Tracking initiated on write of ‘1’ to AD0BUSY and lasts 3 SAR1 clocks, followed by conver-
sion.
Bit0:
UNUSED. Read = 0b. Write = don’t care.
80
R/W
R/W
R/W
AD1CM0
Bit4
Bit3
Bit2
Rev. 1.4
R/W
R/W
Reset Value
-
00000000
Bit1
Bit0
SFR Address:
0xAA

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