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PCA9553DSLASH01中文资料恩XP数据手册PDF规格书
PCA9553DSLASH01规格书详情
General description
The PCA9553 LED blinker blinks LEDs in I2C-bus and SMBus applications where it is necessary to limit bus traffic or free up the I2C-bus masters (MCU, MPU, DSP, chip set, etc.) timer. The uniqueness of this device is the internal oscillator with two programmable blink rates. To blink LEDs using normal I/O expanders like the PCF8574 or PCA9554, the bus master must send repeated commands to turn the LED on and off. This greatly increases the amount of traffic on the I2C-bus and uses up one of the masters timers. The PCA9553 LED blinker instead requires only the initial set-up command to program BLINK RATE 1 and BLINK RATE 2 (i.e., the frequency and duty cycle). From then on, only one command from the bus master is required to turn each individual open-drain output ON, OFF, or to cycle at BLINK RATE 1 or BLINK RATE 2. Maximum output sink current is 25 mA per bit and 100 mA per package.
Features
■ 4 LED drivers (on, off, flashing at a programmable rate)
■ 2 selectable, fully programmable blink rates (frequency and duty cycle) between
0.172 Hz and 44 Hz (5.82 seconds and 0.023 seconds)
■ Input/outputs not used as LED drivers can be used as regular GPIOs
■ Internal oscillator requires no external components
■ I2C-bus interface logic compatible with SMBus
■ Internal power-on reset
■ Noise filter on SCL/SDA inputs
■ 4 open-drain outputs directly drive LEDs to 25 mA
■ Controlled edge rates to minimize ground bounce
■ No glitch on power-up
■ Supports hot insertion
■ Low standby current
■ Operating power supply voltage range of 2.3 V to 5.5 V
■ 0 Hz to 400 kHz clock frequency
■ ESD protection exceeds 2000 V HBM per JESD22-A114, 150 V MM per
JESD22-A115 and 1000 V CDM per JESD22-C101
■ Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
■ Packages offered: SO8, TSSOP8 (MSOP8), HVSON8
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
恩XP |
24+ |
NA/ |
2739 |
优势代理渠道,原装正品,可全系列订货开增值税票 |
询价 | ||
PHI |
24+ |
HVSON-8 |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
PHI |
06+ |
TSOP |
2500 |
全新原装进口自己库存优势 |
询价 | ||
恩XP |
20+ |
na |
65790 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
恩XP |
1844+ |
QFN8 |
6528 |
只做原装正品假一赔十为客户做到零风险!! |
询价 | ||
恩XP |
23+ |
NA |
6000 |
原装现货订货价格优势 |
询价 | ||
PHI |
2023+ |
SMD |
5774 |
安罗世纪电子只做原装正品货 |
询价 | ||
恩XP |
25+23+ |
HVSON8 |
66713 |
绝对原装正品现货,全新深圳原装进口现货 |
询价 | ||
恩XP |
21+ |
HVSON8 |
12588 |
原装正品,自己库存 假一罚十 |
询价 | ||
恩XP |
23+ |
HVSON8 |
8560 |
受权代理!全新原装现货特价热卖! |
询价 |