93LC76 Datasheet PDF - Microchip Technology 8K/16K 2.5V Microwire Serial EEPROM Specs

93LC76 - 8K/16K 2.5V Microwire Serial EEPROM

Datasheet Summary

Description

The PCA9531 is an 8-bit I2C & SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications.

The PCA9531 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM.

Features

Eight LED drivers (on, off, flashing at a programmable rate).
Two selectable, fully programmable blink rates (frequency and duty cycle) between 0.625 and 160 Hz (1.6 and 6.25 milliseconds).
256 brightness steps.
Input/outputs not used as LED drivers can be used as regular GPIOs.
Internal oscillator requires no external components.
I2C interface logic compatible with SMBus.
Internal power-on reset.
Noise filter on SCL/SDA.

Datasheet Details

Part number	93LC76
Manufacturer	Microchip Technology
File Size	202.59 KB
Description	8K/16K 2.5V Microwire Serial EEPROM
Datasheet	93LC76 Datasheet
Additional preview pages of the 93LC76 datasheet.

📁 Similar Datasheet

93LC46 - 1024-BITS SERIAL ELECTRICALLY ERASABLE PROM (Ceramate)

93LC46C - 1-Kbit Microwire Compatible Serial EEPROM (Microchip)

93LC66A - 4K Microwire Compatible Serial EEPROM (Microchip)

93LC66C - 4K Microwire Compatible Serial EEPROM (Microchip)

93L00 - 4-Bit Universal Shift Register (National Semiconductor)

93L08 - Dual 4-Bit Latch (National Semiconductor)

93L11 - 1 of 16 Decoder / Demultiplexer (Fairchild Semiconductor)

93L14 - Quad Latch (National Semiconductor)

93L24 - 5-Bit Comparator (National Semiconductor)

93L28 - Dual 8-Bit Shift Register (National Semiconductor)

Full PDF Text Transcription

Click to expand full text

INTEGRATED CIRCUITS PCA9531 8-bit I2C LED dimmer Product data 2003 Nov 10 Philips Semiconductors Philips Semiconductors Product data 8-bit I2C LED dimmer PCA9531 DESCRIPTION The PCA9531 is an 8-bit I2C & SMBus I/O expander optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications. The PCA9531 contains an internal oscillator with two user programmable blink rates and duty cycles coupled to the output PWM. The LED brightness is controlled by setting the blink rate high enough (> 100 Hz) that the blinking can not be seen and then using the duty cycle to vary the amount of time the LED is on and thus the average current through the LED. The initial setup sequence programs the two blink rates/duty cycles for each individual PWM.

Published: Mar 23, 2005 |