C8051F531-ITR Silicon Labs, C8051F531-ITR Datasheet - Page 87
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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SFR Definition 8.1. SP: Stack Pointer
SFR Definition 8.2. DPL: Data Pointer Low Byte
SFR Definition 8.3. DPH: Data Pointer High Byte
Bits7–0: SP: Stack Pointer.
Bits7–0: DPL: Data Pointer Low.
Bits7–0: DPH: Data Pointer High.
R/W
R/W
R/W
Bit7
Bit7
Bit7
The Stack Pointer holds the location of the top of the stack. The stack pointer is incremented
before every PUSH operation. The SP register defaults to 0x07 after reset.
The DPL register is the low byte of the 16-bit DPTR. DPTR is used to access indirectly
addressed XRAM and Flash memory.
The DPH register is the high byte of the 16-bit DPTR. DPTR is used to access indirectly
addressed XRAM and Flash memory.
R/W
R/W
R/W
Bit6
Bit6
Bit6
R/W
R/W
R/W
Bit5
Bit5
Bit5
R/W
R/W
R/W
Bit4
Bit4
Bit4
Rev. 1.4
R/W
R/W
R/W
Bit3
Bit3
Bit3
R/W
R/W
R/W
Bit2
Bit2
Bit2
C8051F52x/F53x
R/W
R/W
R/W
Bit1
Bit1
Bit1
SFR Address: 0x82
SFR Address: 0x83
SFR Address: 0x81
R/W
R/W
R/W
Bit0
Bit0
Bit0
00000000
00000000
Reset Value
Reset Value
Reset Value
00000111
87
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