IC 8051 MCU 64K FLASH 64TQFP

C8051F021-GQ

Manufacturer Part NumberC8051F021-GQ
DescriptionIC 8051 MCU 64K FLASH 64TQFP
ManufacturerSilicon Laboratories Inc
SeriesC8051F02x
C8051F021-GQ datasheets
 

Specifications of C8051F021-GQ

Program Memory TypeFLASHProgram Memory Size64KB (64K x 8)
Package / Case64-TQFP, 64-VQFPCore Processor8051
Core Size8-BitSpeed25MHz
ConnectivityEBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USARTPeripheralsBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o32Ram Size4.25K x 8
Voltage - Supply (vcc/vdd)2.7 V ~ 3.6 VData ConvertersA/D 8x8b, 8x12b; D/A 2x12b
Oscillator TypeInternalOperating Temperature-40°C ~ 85°C
Processor SeriesC8051F0xCore8051
Data Bus Width8 bitData Ram Size4.25 KB
Interface TypeI2C/SMBus/SPI/UARTMaximum Clock Frequency25 MHz
Number Of Programmable I/os32Number Of Timers4
Operating Supply Voltage2.7 V to 3.6 VMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMT3rd Party Development ToolsPK51, CA51, A51, ULINK2
Development Tools By SupplierC8051F020DKMinimum Operating Temperature- 40 C
On-chip Adc8-ch x 8-bit or 8-ch x 12-bitOn-chip Dac2-ch x 12-bit
No. Of I/o's32Ram Memory Size4352Byte
Cpu Speed25MHzNo. Of Timers5
No. Of Pwm Channels5Rohs CompliantYes
Data Rom Size64 KBA/d Bit Size12 bit
A/d Channels Available8Height1.05 mm
Length10 mmSupply Voltage (max)3.6 V
Supply Voltage (min)2.7 VWidth10 mm
Lead Free Status / RoHS StatusLead free / RoHS CompliantFor Use With336-1200 - DEV KIT FOR F020/F021/F022/F023
Eeprom Size-Other names336-1201
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Page 94/272

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PrevNext
C8051F020/1/2/3
The temperature sensor connects to the highest order input of the ADC0 input multiplexer (see
Multiplexer and PGA” on page 43
for C8051F020/1 devices, or
page 59
for C8051F022/3 devices). The TEMPE bit within REF0CN enables and disables the temperature sensor.
While disabled, the temperature sensor defaults to a high impedance state and any A/D measurements performed on
the sensor while disabled result in undefined data.
Figure 10.2. REF0CN: Reference Control Register
R/W
R/W
R/W
-
-
-
Bit7
Bit6
Bit5
Bits7-5:
UNUSED. Read = 000b; Write = don’t care.
Bit4:
AD0VRS: ADC0 Voltage Reference Select
0: ADC0 voltage reference from VREFA pin.
1: ADC0 voltage reference from DAC0 output.
Bit3:
AD1VRS: ADC1 Voltage Reference Select
0: ADC1 voltage reference from VREFA pin.
1: ADC1 voltage reference from AV+.
Bit2:
TEMPE: Temperature Sensor Enable Bit.
0: Internal Temperature Sensor Off.
1: Internal Temperature Sensor On.
Bit1:
BIASE: ADC/DAC Bias Generator Enable Bit. (Must be ‘1’ if using ADC or DAC).
0: Internal Bias Generator Off.
1: Internal Bias Generator On.
Bit0:
REFBE: Internal Reference Buffer Enable Bit.
0: Internal Reference Buffer Off.
1: Internal Reference Buffer On. Internal voltage reference is driven on the VREF pin.
Table 10.1. Voltage Reference Electrical Characteristics
VDD = 3.0 V, AV+ = 3.0 V, -40°C to +85°C unless otherwise specified
PARAMETER
INTERNAL REFERENCE (REFBE = 1)
Output Voltage
25°C ambient
VREF Short-Circuit Current
VREF Temperature Coefficient
Load Regulation
Load = 0 to 200 µA to AGND
VREF Turn-on Time 1
4.7µF tantalum, 0.1µF ceramic bypass
VREF Turn-on Time 2
0.1µF ceramic bypass
VREF Turn-on Time 3
no bypass cap
EXTERNAL REFERENCE (REFBE = 0)
Input Voltage Range
Input Current
94
Section “6.1. Analog Multiplexer and PGA” on
R/W
R/W
R/W
AD0VRS
AD1VRS
TEMPE
Bit4
Bit3
Bit2
CONDITIONS
MIN
2.36
1.00
Rev. 1.4
Section “5.1. Analog
R/W
R/W
Reset Value
BIASE
REFBE
00000000
Bit1
Bit0
SFR Address:
0xD1
TYP
MAX
UNITS
2.43
2.48
V
30
mA
15
ppm/°C
0.5
ppm/µA
2
ms
20
µs
10
µs
(AV+) -
V
0.3
0
1
µA