收藏本站
Si4020
 
 
21
 
EEPROM MODE
In this mode, the transmitters can operate with a standard at least 1 kbyte serial EEPROM with an SPI interface, and no
microcontroller is necessary. The following events cause wake-up of the device:
Event Number N
EEPROM entry point
Description
0
0000h
power-on
1
0080h
low level on input PB1
2
0100h
low level on input PB2
3
0180h
low level on input PB3
4
0200h
low level on input PB4
5
0280h
low supply voltage level
6
0300h
wake-up timer timeout
 
After any of these events, the crystal oscillator turns on and the device starts to read bytes from the EEPROM continuously (block
read) starting from address N * 128 (decimal) and executes them as commands as described in the previous section.
Note: Zero bytes can be put in the EEPROM for timing purposes. Never put more than 31 consecutive zero bytes into the EEPROMs
active region (between the actual entry point and the closing Sleep Command).
Example EEPROM Hex Content
Power-On Reset:
00000000
C0    C4   CA    1E    C8    23    C4     00    00    00    00    00    00    00    00    00
00000010
00    00    00    00    00    00    00    00    00    00    00    00    00    00    00    00
00000020
00    00    00    00    00    00    00    00    00    00    00    00    00    00    00    00
00000030
00    00    00    00    00    00    00    00    00    00    00    00    00    00    00    00
00000040
00    00    00    00    00    00    00    00    00    00    00    00    00    00    00    00
00000050
00    00    00    00    00    00    00    00    00    00    00    00    00    00    00    00
00000060
00    00    00    00    00    00    00    00    00    00    00    00    00    00    00    00
00000070
00    00    00    00    00    00    00    00    00    00    00    00    00    00    00    00
Short Explanation:
Data in Address, Command, and Parameter fields are hexadecimal values.
For the detailed description of the control command bits, see previous section.
Address
Command
Parameter
Related Control Command
Remarks
0001
C0
C4
Power Management
Crystal  Synthesizer  Power Amplifier auto
on/off mode enable
0203
CA
1E
Push Button
Continuous execution for all push buttons
0405
C8
23
Bit Rate
BR = 10M / 29 / ( 35+1 ) ~ 9600 bps
06-07
C4
00
Sleep
Power down
 
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
SI4021-A1-FT IC TX FSK 915MHZ 5.4V 16-TSSOP
SI4022-A0-FT IC TX FSK UNI 868/915MHZ 16TSSOP
SI4711-B30-GM IC TX FM RADIO 76-108MHZ 20UQFN
SI4713-B30-GMR IC TX FM RADIO RPS/RDS 20UQFN
SKY12146-321LF IC VAR VOLT ATTEN 12QFN
SN171GG-NR SNAP PROTOBOARD W/NO RADIO
SWLP.2450.12.4.B.02 ANTENNA WI-FI WLAN 2.4GHZ
TD4A SENSOR RTD LIQUID TEMP 2TERM
相关代理商/技术参数
SI4020-I1-FTR 功能描述:射频发射器 Transmitter EZRadio 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
SI-40219 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40219
Si4021-A1-FT 功能描述:射频发射器 Transmitters IA4221 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
SI4021-A1-FTR 功能描述:射频发射器 Transmitter EZRadio 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
SI-40222 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40222
SI-40223 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40223
SI-40227 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40227
SI-40228 制造商:Bel Fuse 功能描述:CONN RJ-45 RCP 32 POS 2.54MM SLDR RA TH 48TERM 4PORT - Trays