C8051F531-ITR Silicon Labs, C8051F531-ITR Datasheet - Page 21
C8051F531-ITR
Manufacturer Part Number
C8051F531-ITR
Description
8-bit Microcontrollers - MCU 8KB 12ADC 125C 20Pin MCU
Manufacturer
Silicon Labs
Datasheet
1.C8051F536-ITR.pdf
(220 pages)
Specifications of C8051F531-ITR
Product Category
8-bit Microcontrollers - MCU
Rohs
yes
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
8 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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1.4. Operating Modes
The C8051F52x/F52xA/F53x/F53xA devices have four operating modes: Active (Normal), Idle, Suspend,
and Stop. Active mode occurs during normal operation when the oscillator and peripherals are active. Idle
mode halts the CPU while leaving the peripherals and internal clocks active. In Suspend and Stop mode,
the CPU is halted, all interrupts and timers are inactive, and the internal oscillator is stopped. The various
operating modes are described in Table 1.3 below:
Table 1.3. Operating Modes Summary
See Section “8.3. Power Management Modes” on page 89 for Idle and Stop mode details. See Section
“14.1.1. Internal Oscillator Suspend Mode” on page 136 for more information on Suspend mode.
Suspend
Active
Stop
Idle
SYSCLK active
CPU active (accessing Flash)
Peripherals active or inactive
depending on user settings
SYSCLK active
CPU inactive (not accessing
Flash)
Peripherals active or inactive
depending on user settings
Internal oscillator inactive
If SYSCLK is derived from the
internal oscillator, the peripherals
and the CIP-51 will be stopped
SYSCLK inactive
CPU inactive (not accessing
Flash)
Digital peripherals inactive;
analog peripherals active or
inactive depending on user
settings
Properties
Rev. 1.4
Consumption
Less than Full
Very low
Power
Low
Full
(OSCICN.5)
SUSPEND
Entered?
(PCON.0)
(PCON.1)
C8051F52x/F53x
STOP
IDLE
How
—
Comparator 0 enabled
Any enabled interrupt
and output is logic 0
Port 0 event match
Port 1 event match
or device reset
How Exited?
Device Reset
—
21
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