C8051F021-GQ Silicon Laboratories Inc, C8051F021-GQ Datasheet - Page 241

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
Bit7:
Bits6-3:
Bit2:
Bit1:
Bit0:
Bits 7-0: TMR3RLL: Timer 3 Reload Register Low Byte.
TF3
R/W
R/W
Bit7
Bit7
TF3: Timer3 Overflow Flag.
Set by hardware when Timer 3 overflows from 0xFFFF to 0x0000. When the Timer 3 interrupt is
enabled, setting this bit causes the CPU to vector to the Timer 3 Interrupt service routine. This bit is
not automatically cleared by hardware and must be cleared by software.
UNUSED. Read = 0000b, Write = don't care.
TR3: Timer 3 Run Control.
This bit enables/disables Timer 3.
0: Timer 3 disabled.
1: Timer 3 enabled.
T3M: Timer 3 Clock Select.
This bit controls the division of the system clock supplied to Counter/Timer 3.
0: Counter/Timer 3 uses the system clock divided by 12.
1: Counter/Timer 3 uses the system clock.
T3XCLK: Timer 3 External Clock Select
This bit selects the external oscillator input divided by 8 as the Timer 3 clock source. When T3XCLK
is logic 1, bit T3M (TMR3CN.1) is ignored.
0: Timer 3 clock source defined by bit T3M (TMR3CN.1).
1: Timer 3 clock source is the external oscillator input divided by 8.
Timer 3 is configured as an auto-reload timer. This register holds the low byte of the reload value.
R/W
R/W
Bit6
Figure 22.21. TMR3RLL: Timer 3 Reload Register Low Byte
Bit6
-
Figure 22.20. TMR3CN: Timer 3 Control Register
R/W
R/W
Bit5
Bit5
-
R/W
R/W
Bit4
Bit4
-
R/W
R/W
Bit3
Bit3
-
Rev. 1.4
TR3
R/W
R/W
Bit2
Bit2
T3M
C8051F020/1/2/3
R/W
R/W
Bit1
Bit1
T3XCLK
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
00000000
00000000
Reset Value
Reset Value
0x91
0x92
241

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