C8051F321 Silicon Laboratories Inc, C8051F321 Datasheet - Page 46
C8051F321
Manufacturer Part Number
C8051F321
Description
IC 8051 MCU 16K FLASH 28MLP
Manufacturer
Silicon Laboratories Inc
Series
C8051F32xr
Datasheet
1.C8051F320R.pdf
(256 pages)
Specifications of C8051F321
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
-
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Manufacturer:
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C8051F320/1
46
Bits7-5:
Bits4-0:
†Only applies to C8051F320; selection RESERVED on C8051F321 devices.
Bit7
R
-
UNUSED. Read = 000b; Write = don’t care.
AMX0N4-0: AMUX0 Negative Input Selection.
Note that when GND is selected as the Negative Input, ADC0 operates in Single-ended mode. For all
other Negative Input selections, ADC0 operates in Differential mode.
10001 - 11101
Figure 5.6. AMX0N: AMUX0 Negative Channel Select Register
AMX0N4-0
Bit6
R
-
01100†
01101†
01110†
01111†
00000
00001
00010
00011
00100
00101
00110
01000
01001
01010
01011
10000
00111
11110
11111
Bit5
R
-
GND (ADC in Single-Ended Mode)
AMX0N4 AMX0N3 AMX0N2 AMX0N1 AMX0N0 00000000
R/W
Bit4
ADC0 Negative Input
RESERVED
Rev. 1.1
VREF
P2.4†
P2.5†
P2.6†
P2.7†
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P3.0
R/W
Bit3
R/W
Bit2
R/W
Bit1
R/W
Bit0
SFR Address:
Reset Value
0xBA
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