C8051F021-GQ Silicon Laboratories Inc, C8051F021-GQ Datasheet - Page 184

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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C8051F020/1/2/3
Figure 18.2 shows a typical SMBus configuration. The SMBus0 interface will work at any voltage between 3.0 V and
5.0 V and different devices on the bus may operate at different voltage levels. The bi-directional SCL (serial clock)
and SDA (serial data) lines must be connected to a positive power supply voltage through a pull-up resistor or similar
circuit. Every device connected to the bus must have an open-drain or open-collector output for both the SCL and
SDA lines, so that both are pulled high when the bus is free. The maximum number of devices on the bus is limited
only by the requirement that the rise and fall times on the bus will not exceed 300 ns and 1000 ns, respectively.
18.1. Supporting Documents
It is assumed the reader is familiar with or has access to the following supporting documents:
184
1.
2.
3.
VDD = 5V
The I
The I
System Management Bus Specification -- Version 1.1, SBS Implementers Forum.
2
2
C-bus and how to use it (including specifications), Philips Semiconductor.
C-Bus Specification -- Version 2.0, Philips Semiconductor.
Figure 18.2. Typical SMBus Configuration
VDD = 3V
Master
Device
Rev. 1.4
VDD = 5V
Device 1
Slave
VDD = 3V
Device 2
Slave
SDA
SCL

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