C8051F521A-IM Silicon Laboratories Inc, C8051F521A-IM Datasheet - Page 162
C8051F521A-IM
Manufacturer Part Number
C8051F521A-IM
Description
IC 8051 MCU 8K FLASH 10DFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F52xr
Specifications of C8051F521A-IM
Program Memory Type
FLASH
Program Memory Size
8KB (8K x 8)
Package / Case
10-DFN
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
6
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.25 V
Data Converters
A/D 6x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
C8051F5x
Core
8051
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SPI/UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
6
Number Of Timers
3
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F500DK
Minimum Operating Temperature
- 40 C
On-chip Adc
6-ch x 12-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1488 - KIT DEV C8051F53XA, C8051F52XA770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1455 - ADAPTER PROGRAM TOOLSTICK F520
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1490-5
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C8051F52x/F52xA/F53x/F53xA
Table 16.1. SPI Slave Timing Parameters
162
Master Mode Timing* (See Figure 16.6 and Figure 16.7)
Slave Mode Timing* (See Figure 16.8 and Figure 16.9)
Note: T
Parameter
T
T
T
T
T
T
T
T
T
T
MCKH
T
MCKL
T
T
CKH
CKL
SOH
SEZ
SDZ
MIS
MIH
SIS
SIH
The maximum possible frequency of the SPI can be calculated as:
Transmission: SYSCLK/2
Reception: SYSCLK/10
SE
SD
SYSCLK
is equal to one period of the device system clock (SYSCLK) in ns.
SCK High Time
SCK Low Time
MISO Valid to SCK Sample Edge
SCK Sample Edge to MISO Change
NSS Falling to First SCK Edge
Last SCK Edge to NSS Rising
NSS Falling to MISO Valid
NSS Rising to MISO High-Z
SCK High Time
SCK Low Time
MOSI Valid to SCK Sample Edge
SCK Sample Edge to MOSI Change
SCK Shift Edge to MISO Change
Description
Rev. 1.3
1 x T
1 x T
2 x T
2 x T
5 x T
5 x T
2 x T
2 x T
Min
20
SYSCLK
SYSCLK
SYSCLK
SYSCLK
—
—
SYSCLK
SYSCLK
SYSCLK
SYSCLK
—
0
4 x T
4 x T
4 x T
Max
—
—
—
—
—
—
SYSCLK
SYSCLK
—
—
—
—
SYSCLK
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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