Si4021
18
Simultaneously Pressed Push-Button Detect by Microcontroller
Vdd
Microcontroller mode
SPI
nIRQ
POR
(internal)
Push button
input 2
Push button
input 1
POR
PB1
PB1
PB2
PB1
PB2
PB1
Status rd
Status rd
Status rd
Status rd
Status rd
Status rd
Status rd
PB_nIRQdly*
Note:
*PB_nIRQdly is equal with the
debounce time
Simplified Block Diagram of Push-Button 14 Inputs
To Digital glitch filter for
Push-button4
Push-button1,2,3
D
Q
CLR
EVENT FLAG
SLEEP Command *
STAT. REG. READ Command **
COUNT/SINGLE
VDD
Note:
* In EEprom mode
** In uC controlled mode
Push-button1
Push-button2
Push-button4
Internal
blocker signal
to
Push-button1
and
Push-button2
p4
WEAK PULL-UP
ENABLE/DISABLE
VDD
With internal weak pull-up
POR, LBD, WAKE UP TIMER,
P. BUTTONS EVENT FLAGS
Notice:
Only one EVENT is
serviced simultaneously
the others are pending.
Digital glitch
filter
CLK
CLR for P.B1,2
b1, b2, b3
bc
发布紧急采购，3分钟左右您将得到回复。
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