C8051F537-ITR Silicon Labs, C8051F537-ITR Datasheet - Page 163
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C8051F537-ITR
Manufacturer Part Number
C8051F537-ITR
Description
8-bit Microcontrollers - MCU 2KB 12ADC 125C 20Pin MCU
Manufacturer
Silicon Labs
Datasheet
1.C8051F536-ITR.pdf
(220 pages)
Specifications of C8051F537-ITR
Product Category
8-bit Microcontrollers - MCU
Rohs
yes
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
2 KB
Data Ram Size
256 B
On-chip Adc
Yes
Package / Case
TSSOP-20
Mounting Style
SMD/SMT
A/d Bit Size
12 bit
A/d Channels Available
16
Interface Type
SPI, UART
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
16
Number Of Timers
3
On-chip Dac
No
Processor Series
C8051
Program Memory Type
Flash
Factory Pack Quantity
2500
Supply Voltage - Max
2.7 V, 5.25 V
Supply Voltage - Min
2 V, 2.7 V
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Table 16.1. SPI Slave Timing Parameters
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. 1.4
1 x T
1 x T
2 x T
2 x T
5 x T
5 x T
2 x T
2 x T
C8051F52x/F53x
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
163
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