參數(shù)資料
型號: C8051F221R
廠商: Silicon Laboratories Inc
文件頁數(shù): 73/146頁
文件大小: 0K
描述: IC 8051 MCU 8K FLASH 32LQFP
標準包裝: 1
系列: C8051F2xx
核心處理器: 8051
芯體尺寸: 8-位
速度: 25MHz
連通性: SPI,UART/USART
外圍設備: 欠壓檢測/復位,POR,WDT
輸入/輸出數(shù): 22
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 22x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 32-LQFP
包裝: 剪切帶 (CT)
其它名稱: 336-1009-1
C8051F2xx
32
Rev. 1.6
5.
ADC (8-Bit, C8051F220/1/6 Only)
Description
The ADC subsystem for the C8051F220/1/6 consists of configurable analog multiplexer (AMUX), a pro-
grammable gain amplifier (PGA), and a 100ksps, 8-bit successive-approximation-register ADC with inte-
grated track-and-hold and programmable window detector (see Figure 5.1).
The AMUX, PGA, Data
Conversion Modes, and Window Detector are all configurable under software control via the Special Func-
tion Register's shown in Figure 5.1. The ADC subsystem (ADC, track-and-hold and PGA) is enabled only
when the ADCEN bit in the ADC Control register (ADC0CN, SFR Definition 5.3) is set to 1. The ADC sub-
system is in low power shutdown when this bit is 0.
Figure 5.1. 8-Bit ADC Functional Block Diagram
5.1.
Analog Multiplexer and PGA
Any external port pin (ports 0-3) may be selected via software. The AMX0SL SFR is used to select the
desired analog input pin. (See SFR Definition 5.1). When the AMUX is enabled, the user selects which
port is to be used (bits PRTSL0-1), and then the pin in the selected port (bits PINSL0-2) to be the analog
input.
The table in ?? shows AMUX functionality by channel for each possible configuration. The PGA amplifies
the AMUX output signal by an amount determined by the states of the AMPGN2-0 bits in the ADC Config-
uration register, ADC0CF (SFR Definition 5.2). The PGA can be software-programmed for gains of 0.5, 1,
2, 4, 8 or 16. It defaults to a gain of 1 on reset.
8-Bit
SAR
ADC
RE
F
+
-
VDD
8
32-to-1
AMUX
VDD
ADCEN
S
YSC
L
K
X
AIN0
AIN31
ADBUSY(w)
C
onve
rsi
on
S
tar
t
AMX0SL
PI
N
S
L0
PI
N
S
L1
PI
N
S
L2
PRT
SL
0
ADC0CF
AMPGN0
AMPGN1
AMPGN2
A
D
CS
C0
A
D
CS
C1
A
D
CS
C2
ADC0CN
AD
L
J
ST
AD
W
IN
T
ADS
T
M
0
ADS
T
M
1
AD
BU
S
Y
A
DCI
NT
ADC
T
M
A
DCE
N
A
DC0
H
AM
X
EN
PRT
SL
1
VDD
VREF
GND
T2 OV
..
.
ADC0LTH
ADC0GTH
16
8
ADWINT
AIN0-31 are port 0-3
pins -- any external
port pin may be configured as an
analog input
GND
Dig
Comp
相關PDF資料
PDF描述
C8051F220R IC 8051 MCU 8K FLASH 48TQFP
C8051F012R IC 8051 MCU 32K FLASH 32LQFP
C8051F127R IC 8051 MCU 128K FLASH 64TQFP
C8051F011R IC 8051 MCU 32K FLASH 48TQFP
C8051F010R IC 8051 MCU 32K FLASH 64TQFP
相關代理商/技術參數(shù)
參數(shù)描述
C8051F226 功能描述:8位微控制器 -MCU 8KB 8ADC 1KRam RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
C8051F226DK 功能描述:開發(fā)板和工具包 - 8051 MCU DEVELOPMENT KIT W/ US POWER SUPPLY RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓:
C8051F226DK-A 功能描述:DEV KIT F220/221/226/230/231/236 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F226DK-B 功能描述:DEV KIT F220/221/226/230/231/236 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035
C8051F226DK-E 功能描述:DEV KIT F220/221/226/230/231/236 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK(80-QFP ZIF 插口) 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035