參數(shù)資料
型號(hào)： 935285129118
廠商： NXP SEMICONDUCTORS
元件分類： 顯示驅(qū)動(dòng)器
英文描述： LED DISPLAY DRIVER, PDSO28
封裝： 4.40 MM, PLASTIC, MO-153, SOT361-1, TSSOP-28
文件頁數(shù)： 12/54頁
文件大小： 410K
代理商： 935285129118
PCA9685_2
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 02 — 16 July 2009
2 of 50
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I2C-bus LED controller
The active LOW Output Enable input pin (OE) allows asynchronous control of the LED
outputs and can be used to set all the outputs to a dened I2C-bus programmable logic
state. The OE can also be used to externally ‘pulse width modulate’ the outputs, which is
useful when multiple devices need to be dimmed or blinked together using software
control.
Software programmable LED All Call and three Sub Call I2C-bus addresses allow all or
dened groups of PCA9685 devices to respond to a common I2C-bus address, allowing
for example, all red LEDs to be turned on or off at the same time or marquee chasing
effect, thus minimizing I2C-bus commands. Six hardware address pins allow up to
62 devices on the same bus.
The Software Reset (SWRST) General Call allows the master to perform a reset of the
PCA9685 through the I2C-bus, identical to the Power-On Reset (POR) that initializes the
registers to their default state causing the outputs to be set LOW. This allows an easy and
quick way to recongure all device registers to the same condition via software.
2.
Features
I 16 LED drivers. Each output programmable at:
N Off
N On
N Programmable LED brightness
N Programmable LED turn-on time to help reduce EMI
I 1 MHz Fast-mode Plus compatible I2C-bus interface with 30 mA high drive capability
on SDA output for driving high capacitive buses
I 4096-step (12-bit) linear programmable brightness per LED output varying from fully
off (default) to maximum brightness
I LED output frequency (all LEDs) typically varies from 40 Hz to 1000 Hz (Default of 1Eh
in PRE_SCALE register results in a 200 Hz refresh rate with oscillator clock of
25 MHz.)
I Sixteen totem pole outputs (sink 25 mA and source 10 mA at 5 V) with software
programmable open-drain LED outputs selection (default at totem pole). No input
function.
I Output state change programmable on the Acknowledge or the STOP Command to
update outputs byte-by-byte or all at the same time (default to ‘Change on STOP’).
I Active LOW Output Enable (OE) input pin. LEDn outputs programmable to logic 1,
logic 0 (default at power-up) or ‘high-impedance’ when OE is HIGH.
I 6 hardware address pins allow 62 PCA9685 devices to be connected to the same
I2C-bus
I Toggling OE allows for hardware LED blinking
I 4 software programmable I2C-bus addresses (one LED All Call address and three LED
Sub Call addresses) allow groups of devices to be addressed at the same time in any
combination (for example, one register used for ‘All Call’ so that all the PCA9685s on
the I2C-bus can be addressed at the same time and the second register used for three
different addresses so that 1
3 of all devices on the bus can be addressed at the same
time in a group). Software enable and disable for these I2C-bus address.
I Software Reset feature (SWRST General Call) allows the device to be reset through
the I2C-bus
相關(guān)PDF資料
PDF描述
935287058118 LED DISPLAY DRIVER, PQCC28
935289802118 LED DISPLAY DRIVER, PDSO28
935288883112 DATACOM, INTERFACE CIRCUIT, PDSO8
935288883115 DATACOM, INTERFACE CIRCUIT, PDSO8
935288883118 DATACOM, INTERFACE CIRCUIT, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
935286409157 制造商:NXP Semiconductors 功能描述:IC AMP AUDIO DGTL MONO D 24HVQFN
935286496115 制造商:NXP Semiconductors 功能描述:IC ANALOG SWITCH SPDT 10XQFN
935286689118 制造商:NXP Semiconductors 功能描述:935286689118
935286882115 制造商:NXP Semiconductors 功能描述:IC ANALOG SWITCH SPDT 10HVSON
935286883115 制造商:NXP Semiconductors 功能描述:IC BUFFER/LINE DVR 3STATE 10XSON
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*