C8051F502-IMR Silicon Laboratories Inc, C8051F502-IMR Datasheet - Page 264
C8051F502-IMR
Manufacturer Part Number
C8051F502-IMR
Description
MCU 8-Bit C8051F50x 8051 CISC 64KB Flash 2.5V/3.3V/5V 32-Pin QFN EP T/R
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F502-IM.pdf
(312 pages)
Specifications of C8051F502-IMR
Package
32QFN EP
Device Core
8051
Family Name
C8051F50x
Maximum Speed
50 MHz
Ram Size
4.25 KB
Program Memory Size
64 KB
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Program Memory Type
Flash
Number Of Programmable I/os
25
Interface Type
I2C/SPI/UART
On-chip Adc
32-chx12-bit
Operating Temperature
-40 to 125 °C
Number Of Timers
4
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Parameter
Master Mode Timing
T
T
T
T
Slave Mode Timing
T
T
T
T
T
T
T
T
T
T
*Note: T
MCKH
MCKL
MIS
MIH
SE
SD
SEZ
SDZ
CKH
CKL
SIS
SIH
SOH
SLH
SYSCLK
Description
SCK High Time
SCK Low Time
MISO Valid to SCK Shift Edge
SCK Shift 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
Last SCK Edge to MISO Change
(CKPHA = 1 ONLY)
is equal to one period of the device system clock (SYSCLK).
*
*
(See Figure 25.10 and Figure 25.11)
(See Figure 25.8 and Figure 25.9)
Table 25.1. SPI Slave Timing Parameters
Rev. 1.2
Min
1 x T
1 x T
1 x T
2 x T
2 x T
5 x T
5 x T
2 x T
2 x T
6 x T
SYSCLK
SYSCLK
SYSCLK
SYSCLK
SYSCLK
—
—
SYSCLK
SYSCLK
SYSCLK
SYSCLK
—
SYSCLK
0
+ 20
Max
4 x T
4 x T
4 x T
8 x T
—
—
—
—
—
—
SYSCLK
SYSCLK
—
—
—
—
SYSCLK
SYSCLK
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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