C8051F321R Silicon Laboratories Inc, C8051F321R Datasheet - Page 47
![IC 8051 MCU 16K FLASH 28MLP](/photos/6/93/69391/sl-28-mlp_sml.jpg)
C8051F321R
Manufacturer Part Number
C8051F321R
Description
IC 8051 MCU 16K FLASH 28MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F32xr
Datasheet
1.C8051F320R.pdf
(256 pages)
Specifications of C8051F321R
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
21
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 13x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
336-1067-2
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Bits7-3:
Bit2:
Bits1-0:
Bits7-0:
AD0SC4
R/W
R/W
Bit7
Bit7
AD0SC4-0: ADC0 SAR Conversion Clock Period Bits.
SAR Conversion clock is derived from system clock by the following equation, where AD0SC refers
to the 5-bit value held in bits AD0SC4-0. SAR Conversion clock requirements are given in Table 5.1.
AD0LJST: ADC0 Left Justify Select.
0: Data in ADC0H:ADC0L registers are right-justified.
1: Data in ADC0H:ADC0L registers are left-justified.
UNUSED. Read = 00b; Write = don’t care.
ADC0 Data Word High-Order Bits.
For AD0LJST = 0: Bits 7-2 are the sign extension of Bit1. Bits 1-0 are the upper 2 bits of the 10-bit
ADC0 Data Word.
For AD0LJST = 1: Bits 7-0 are the most-significant bits of the 10-bit ADC0 Data Word.
AD0SC
AD0SC3
R/W
R/W
Bit6
Bit6
=
Figure 5.8. ADC0H: ADC0 Data Word MSB Register
Figure 5.7. ADC0CF: ADC0 Configuration Register
SYSCLK
--------------------- - 1
CLK
AD0SC2
R/W
R/W
Bit5
Bit5
SAR
–
AD0SC1
R/W
R/W
Bit4
Bit4
AD0SC0
R/W
R/W
Bit3
Bit3
Rev. 1.1
AD0LJST
R/W
R/W
Bit2
Bit2
R/W
R/W
Bit1
Bit1
-
C8051F320/1
R/W
R/W
Bit0
Bit0
-
SFR Address:
SFR Address:
00000000
Reset Value
11111000
Reset Value
0xBC
0xBE
47
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