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参数资料
| 型号： | AT86RF401U |
| 厂商： | ATMEL CORP |
| 元件分类： | 通信及网络 |
| 英文描述： | Smart RF Wireless Data Microtransmitter |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO20 |
| 封装： | 4.40 X 6.50 MM, 0.65 MM PITCH, TSSOP-20 |
| 文件页数： | 41/52页 |
| 文件大小： | 479K |
| 代理商： | AT86RF401U |
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41
AT86RF401
1424F
–
RKE
–
12/03
Bits[6:5]: AVR System Clock Select
These bits select the divide value of the XTALB input that is used to produce the AVR
System Clock.
Table 20.
AVR Clock Select Definition
This clock select value may be programmed on the fly by either the AVR processor in
normal operation or by an I/O write SPI command during SPI mode. Note that during
SPI mode, the I/O and serial programming logic runs at XTALB/16 frequency.
Bit[4]: Test Mode
When this bit is set to
“
1
”
, the part enters test mode. The I/O pins, if enabled, assume
the following functionality:
Notes:
1. IO_ENAB register is NOT used for SPI pins.
2. In SPI mode, the I/O registers may be directly accessed via the SPI interface. Txkey, lockdetect may be output using this
mode.
Bit[3]: Battery Dead
Indicates battery is dead. Only readable by SPI interface.
Bit[2]: Battery Low Indicator
This bit is identical to Bit[7] of Battery Low Configuration Register ($35). When Bit[6] of
Battery Low Configuration Register ($35) is set (Battery Low Valid), a set bit in this loca-
tion indicates that the battery voltage is lower than the voltage level that is determined
by Bits[5:0] of Battery Low Configuration Register ($35).
Bit [1]: Sleep Bit
When set, this bit stops the crystal oscillator. This stops the AVR processor with the pro-
gram counter frozen at the current instruction. Sleep will also stop the Watchdog Timer.
The Watchdog Timer is only restarted if the part wakes up. If an I/O pin is configured as
a button, a button press will start the oscillator and check the battery level. If the battery
level is greater than the Battery Dead level, the AVR system clock is started and normal
program execution continues. If the battery level is below the Battery Dead level, the
crystal oscillator is turned off, putting the part back to sleep until a button is pressed
again (care should be taken not to put the part to sleep unless a button is configured and
enabled).
Bit[0]: Button Boot Mode (BBM)
If the BBM bit is set and the part is brought out of sleep mode by a button input activa-
tion, the part will enter the button reset state. In this state, the part will reboot and begin
ACS[1:0]
AVR System Clock
11
XTALB/16
10
XTALB/32
01
XTALB/64
00
XTALB/128
I/O5
I/O4
I/O3
I/O2
I/O1
I/O0
Normal Mode
(RESETB = 1)
txkey
(Output)
lockdetect
(Output)
txenable
(Output)
RFU
RFU
RFU
SPI Mode
(RESETB = 0)
txkey
(Output)
lockdetect
(Output)
txenable
(Output)
SPI_CLK
SDO
SDI
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| AT86RF401U-6GS | 功能描述:IC MICRO TRANSM RF W/AVR 20TSSOP RoHS:否 类别:RF/IF 和 RFID >> RF 发射器 系列:- 标准包装:4,000 系列:- 频率:310MHz ~ 440MHz 应用:- 调制或协议:UHF，ASK 数据传输率 - 最大:20 kBaud 功率 - 输出:1dBm ~ 5dBm 电流 - 传输:10mA 数据接口:PCB，表面贴装 天线连接器:PCB，表面贴装 存储容量:- 特点:- 电源电压:2.2 V ~ 4 V 工作温度:-40°C ~ 85°C 封装/外壳:16-LSSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| AT86RF401UEK1 | 制造商:Atmel Corporation 功能描述:Smart RF Wireless Data Microtransmitter |
| AT86RF401U-EK1 | 功能描述:射频发射器 Smart RF Micro Trans RoHS:否 制造商:Micrel 类型:ASK Transmitter 封装 / 箱体:SOT-23-6 工作频率:300 MHz to 450 MHz 封装:Reel |
| AT86RF401U-XI | 功能描述:IC MICRO TX RF W/AVR 20-TSSOP RoHS:否 类别:RF/IF 和 RFID >> RF 发射器 系列:- 标准包装:4,000 系列:- 频率:310MHz ~ 440MHz 应用:- 调制或协议:UHF，ASK 数据传输率 - 最大:20 kBaud 功率 - 输出:1dBm ~ 5dBm 电流 - 传输:10mA 数据接口:PCB，表面贴装 天线连接器:PCB，表面贴装 存储容量:- 特点:- 电源电压:2.2 V ~ 4 V 工作温度:-40°C ~ 85°C 封装/外壳:16-LSSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| AT86RF401X | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Smart RF Wireless Data Microtransmitter |
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