C8051F021-GQ Silicon Laboratories Inc, C8051F021-GQ Datasheet - Page 225

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
22.
The C8051F020/1/2/3 devices contain 5 counter/timers: three are 16-bit counter/timers compatible with those found
in the standard 8051, and two are 16-bit auto-reload timers for use with the ADCs, SMBus, UART1, or for general
purpose use. These can be used to measure time intervals, count external events and generate periodic interrupt
requests. Timer 0 and Timer 1 are nearly identical and have four primary modes of operation. Timer 2 offers addi-
tional capabilities not available in Timers 0 and 1. Timer 3 is similar to Timer 2, but without the capture or Baud Rate
Generator modes. Timer 4 is identical to Timer 2, and can supply baud-rate generation capabilities to UART1.
When functioning as a timer, the counter/timer registers are incremented on each clock tick. Clock ticks are derived
from the system clock divided by either one or twelve as specified by the Timer Clock Select bits (T4M-T0M) in
CKCON, shown in Figure 22.1. The twelve-clocks-per-tick option provides compatibility with the older generation
of the 8051 family. Applications that require a faster timer can use the one-clock-per-tick option.
When functioning as a counter, a counter/timer register is incremented on each high-to-low transition at the selected
input pin. Events with a frequency of up to one-fourth the system clock's frequency can be counted. The input signal
need not be periodic, but it should be held at a given level for at least two full system clock cycles to ensure the level
is sampled.
Timer 0 and Timer 1:
Two 8-bit counter/timers
8-bit counter/timer with
13-bit counter/timer
16-bit counter/timer
(Timer 0 only)
TIMERS
auto-reload
Timer 2:
16-bit counter/timer with
16-bit counter/timer with
Baud rate generator for
auto-reload
UART0
capture
Rev. 1.4
Timer 3:
16-bit timer with auto-
reload
C8051F020/1/2/3
Timer 4
16-bit counter/timer with
16-bit counter/timer with
Baud rate generator for
auto-reload
UART1
capture
225

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