C8051F321 Silicon Laboratories Inc, C8051F321 Datasheet - Page 19
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
Quantity
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Part Number:
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Manufacturer:
SILICON
Quantity:
249
Part Number:
C8051F321
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
Company:
Part Number:
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Manufacturer:
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Part Number:
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/RST/C2CK
REGIN
VBUS
GND
VDD
D+
D-
XTAL1 XTAL2
Recovery
Oscillator
Oscillator
Clock
External
Internal
12MHz
Circuit
Analog/Digital
C2D
5.0V
Power
IN
POR
Regulator
Voltage
OUT
1,2,3,4
Debug HW
Transceiver
Brown-
x4
Out
USB
2
Figure 1.2. C8051F321 Block Diagram
Enable
2
USB Clock
1K byte USB
Controller
SRAM
USB
System
Clock
Reset
C
o
8
0
5
1
e
r
SFR Bus
256 byte
16kbyte
1K byte
FLASH
SRAM
XRAM
Rev. 1.1
VDD
VREF
0,1,2,3 /
10-bit
200ksps
ADC
SMBus
Port 2
Port 0
Port 1
UART
Timer
Port 3
Latch
Latch
Latch
Latch
PCA/
WDT
RTC
SPI
VREF
CP0
CP1
Temp
C8051F320/1
M
U
A
X
+
+
-
-
C
R
O
S
S
B
A
R
VREF
VDD
AIN0-AIN11
P
D
P
D
P
D
P
D
0
v
1
v
2
v
3
v
r
r
r
r
P0.0
P0.1
P0.2/XTAL1
P0.3/XTAL2
P0.4
P0.5
P0.6/CNVSTR
P0.7/VREF
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/C2D
19
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