MAX6954 - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

MAX6954
Manufacturer

Maxim Integrated
ChipWorker Part#

CW481496966
RoHS

Lead free / RoHS Compliant
Description

4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
Documentation

Datasheet

MAX6954 Global Supplier

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MAX6954 Specifications

Attribute	Attribute Value

Part Number	MAX6954
Manufacturer	Maxim Integrated
ChipWorker Part#	CW481496966
Documentation	Datasheet
Case/Package	SSOP-36
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RoHS	RoHS Compliant

Product Description

General Description
The MAX6954 is a compact display driver that interfaces microprocessors to a mix of 7-segment, 14-segment, and 16-segment LED displays through an SPI™- or QSPI™-compatible 4-wire serial interface. The serial interface may be cascaded through multiple devices. The MAX6954 drives up to 16 digits 7-segment, 8 digits 14-segment, 8 digits 16-segment, or 128 discrete LEDs, while functioning from a supply voltage as low as 2.7V. The driver includes five I/O expander (or GPIO) lines, some or all of which may be configured as a key switch reader, which automatically scans and debounces a matrix of up to 32 switches.
Features
♦ High-Speed 26MHz SPI/QSPI/MICROWIRE™-Compatible Serial Interface
♦ 2.7V to 5.5V Operation
♦ Drives Up to 16 Digits 7-Segment, 8 Digits 14-Segment, 8 Digits 16-Segment, 128 Discrete LEDs, or a Combination of Digit Types
♦ Drives Common-Cathode Monocolor and Bicolor LED Displays
♦ Built-In ASCII 104-Character Font for 14-Segment and 16-Segment Digits and Hexadecimal Font for 7-Segment Digits
♦ Automatic Blinking Control for each Segment
♦ 10µA (typ) Low-Power Shutdown (Data Retained)
♦ 16-Step Digit-by-Digit Digital Brightness Control
♦ Display Blanked on Power-Up
♦ Slew-Rate Limited Segment Drivers for Lower EMI
♦ Five GPIO Port Pins Can Be Configured as Key Switch Reader to Scan and Debounce Up to 32 Switches with n-Key Rollover
♦ IRQ Output when a Key Input Is Debounced
♦ 36-Pin SSOP and 40-Pin DIP and TQFN Packages
♦ Automotive Temperature Range Standard
Applications
Set-Top Boxes
Automotive
Panel Meters
Bar Graph Displays
White Goods
Audio/Video Equipment

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