C8051F021-GQ Silicon Laboratories Inc, C8051F021-GQ Datasheet - Page 69

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

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Part Number:
C8051F021-GQR
0
6.3.
The ADC0 Programmable Window Detector continuously compares the ADC0 output to user-programmed limits,
and notifies the system when an out-of-bound condition is detected. This is especially effective in an interrupt-driven
system, saving code space and CPU bandwidth while delivering faster system response times. The window detector
interrupt flag (AD0WINT in ADC0CN) can also be used in polled mode. The high and low bytes of the reference
words are loaded into the ADC0 Greater-Than and ADC0 Less-Than registers (ADC0GTH, ADC0GTL, ADC0LTH,
and ADC0LTL). Reference comparisons are shown starting on page 70. Notice that the window detector flag can be
asserted when the measured data is inside or outside the user-programmed limits, depending on the programming of
the ADC0GTx and ADC0LTx registers.
Bits7-0:
Bits7-0:
Bits7-0:
Bits7-0:
Figure 6.12. ADC0GTH: ADC0 Greater-Than Data High Byte Register (C8051F022/3)
Figure 6.13. ADC0GTL: ADC0 Greater-Than Data Low Byte Register (C8051F022/3)
Figure 6.14. ADC0LTH: ADC0 Less-Than Data High Byte Register (C8051F022/3)
Figure 6.15. ADC0LTL: ADC0 Less-Than Data Low Byte Register (C8051F022/3)
R/W
R/W
R/W
R/W
Bit7
Bit7
Bit7
Bit7
ADC0 Programmable Window Detector
High byte of ADC0 Greater-Than Data Word.
Low byte of ADC0 Greater-Than Data Word.
High byte of ADC0 Less-Than Data Word.
Low byte of ADC0 Less-Than Data Word.
R/W
R/W
R/W
R/W
Bit6
Bit6
Bit6
Bit6
R/W
R/W
R/W
R/W
Bit5
Bit5
Bit5
Bit5
R/W
R/W
R/W
R/W
Bit4
Bit4
Bit4
Bit4
R/W
R/W
R/W
R/W
Bit3
Bit3
Bit3
Bit3
Rev. 1.4
R/W
R/W
R/W
R/W
Bit2
Bit2
Bit2
Bit2
R/W
R/W
R/W
R/W
Bit1
Bit1
Bit1
Bit1
C8051F022/3
R/W
R/W
R/W
R/W
Bit0
Bit0
Bit0
Bit0
SFR Address:
SFR Address:
SFR Address:
SFR Address:
00000000
00000000
Reset Value
11111111
Reset Value
11111111
Reset Value
Reset Value
0xC5
0xC4
0xC7
0xC6
69

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