C8051F019-GQ Silicon Laboratories Inc, C8051F019-GQ Datasheet - Page 107
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C8051F019-GQ
Manufacturer Part Number
C8051F019-GQ
Description
IC 8051 MCU 16K FLASH 48TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F018r
Specifications of C8051F019-GQ
Program Memory Type
FLASH
Program Memory Size
16KB (16K x 8)
Package / Case
48-TQFP, 48-VQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
2.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F0x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1.25 KB
Interface Type
I2C/SMBus/SPI/UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
16
Number Of Timers
4
Operating Supply Voltage
2.8 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
C8051F005DK
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
No. Of I/o's
16
Ram Memory Size
1.25KB
Cpu Speed
25MHz
No. Of Timers
4
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1198
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F019-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F019-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
15.1.
The four signals used by the SPI (MOSI, MISO, SCK, NSS) are described below.
15.1.1. Master Out, Slave In
The master-out, slave-in (MOSI) signal is an output from a master device and an input to slave devices. It is used to
serially transfer data from the master to the slave. Data is transferred most-significant bit first.
15.1.2. Master In, Slave Out
The master-in, slave-out (MISO) signal is an output from a slave device and an input to the master device. It is used
to serially transfer data from the slave to the master.
places the MISO pin in a high-impedance state when the slave is not selected.
15.1.3. Serial Clock
The serial clock (SCK) signal is an output from the master device and an input to slave devices. It is used to
synchronize the transfer of data between the master and slave on the MOSI and MISO lines.
15.1.4. Slave Select
The slave select (NSS) signal is an input used to select the SPI module when in slave mode by a master, or to
disable the SPI module when in master mode. When in slave mode, it is pulled low to initiate a data transfer and
remains low for the duration of the transfer.
107
C8051F018
C8051F019
Signal Descriptions
Master
Device
Device
Slave
Figure 15.2. Typical SPI Interconnection
NSS
Rev. 1.2
Device
Slave
NSS
Data is transferred most-significant bit first. A SPI slave
Device
Slave
NSS
VDD
MISO
MOSI
SCK