Si4021
 
 
3
PACKAGE PIN DEFINITIONS, MICROCONTROLLER MODE
Pin type key: D=digital, A=analog, S=supply, I=input, O=output, IO=input/output
 
Microcontroller Mode Pin Assignment
 
 
Pin
Name
Type
Function
1
SDI
DI
Data input of serial control interface
2
SCK
DI
Clock input of serial control interface
3
nSEL
DI
Chip select input of serial control interface (active low)
4
PB1
DI
Push-button input #1 (active low with internal pull-up resistor)
5
PB2
DI
Push-button input #2 (active low with internal pull-up resistor)
6
PB3
DI
Push-button input #3 (active low with internal pull-up resistor)
7
PB4
DI
Push-button input #4 (active low with internal pull-up resistor)
8
CLK
DO
Microcontroller clock (1 MHz-10 MHz)
9
XTL
AIO
Crystal connection (other terminal of crystal to VSS)
10
VSS
S
Ground reference
11
MOD
DI
Connect to logic high (microcontroller mode)
12
RFN
AO
Power amplifier output (open collector)
13
RFP
AO
Power amplifier output (open collector)
14
nIRQ
DO
Interrupt request output for microcontroller (active low) and status read output
15
VDD
S
Positive supply voltage
16
FSK
DI
Serial data input for FSK modulation
相关PDF资料
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
TD5A SENSOR RTD TEMP MINI 3LEAD
相关代理商/技术参数
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
SI-40229 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40229
Si4022-A0-FT 功能描述:射频发射器 Transmitters IA4222 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
SI4022-A0-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