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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 684kB) Download   E-Mail

Description

The MAX6958/MAX6959 compact multiplexed common- cathode display drivers interface microprocessors to seven-segment numeric LED digits, or discrete LEDs through an SMBus™- and I²C-compatible 2-wire serial interface. The 2-wire serial interface uses fixed 0.8V/2.1V logic thresholds for compatibility with 2.5V and 3.3V systems when the display driver is powered from a 5V supply. The MAX6958/MAX6959 drive up to four 7-segment digits, with decimal points, plus four discrete LEDs, or four 7-segment digits and eight discrete LEDs if the digits' decimal points are not used, or up to 36 discrete LEDs. The MAX6959 also includes two input ports, one or both of which may be configured as a key-switch reader, which automatically scans and debounces a matrix of up to eight switches. Key-switch status is obtained by polling internal status registers or by configuring the MAX6959 interrupt output. Other on-chip features include a hexadecimal font for seven-segment displays, multiplex scan circuitry, anode and cathode drivers, and static RAM that stores each digit. The peak segment current for the display digits is set internally to 23mA. Display intensity is adjusted using a 64-step internal digital brightness control. The MAX6958/MAX6959 include a low-power shutdown mode, a scan-limit register that allows the user to display from one to four digits, and a test mode, which forces all LEDs on. The LED drivers are slew-rate-limited to reduce EMI. The MAX6958/MAX6959 are available in 16-pin PDIP and QSOP packages and are fully specified over the -40°C to +125°C automotive temperature range.

Key Features		Applications/Uses
400kbps 2-Wire Serial Interface 3V to 5.5V Operation Drive 4 Digits plus 4 or 8 Discrete LEDs Drive Common-Cathode LED Digits 23mA Constant-Current LED Segment Drive Hexadecimal Decode/No-Decode Digit Selection 64-Step Digital Brightness Control Slew-Rate-Limited Segment Drivers Reduced EMI Debounces Up to Eight Switches with n-Key Rollover (MAX6959 Only) IRQ Output When a Key Input Is Debounced (MAX6959 Only) 20µA Low-Power Shutdown (Data Retained) Automotive Temperature Range (-40°C to +125°C) Compact 16-Pin PDIP and QSOP Packages Underwriters Laboratories (UL®) Recognized		Audio/Video Equipment Industrial Controls Panel Meters Set-Top Boxes Vending Machine White Goods

Diagram

Typical Operating Circuit

Application Notes

Application Note 828: LED Manufacturers' Web Sites - MAX6958, MAX6959 Application Note 1193: Electronic Displays Comparison - MAX6958, MAX6959 Application Note 1880: Charlieplexing - Reduced Pin-Count LED Display Multiplexing - MAX6958, MAX6959 Application Note 1883: LEDs Are Still Popular (and Improving) after All These Years - MAX6958, MAX6959 Application Note 1928: Wiring the MAX6958/59 to 4-Digit Clock Displays - MAX6958, MAX6959 Application Note 1936: Driving 4-1/2 Digit Meter Displays with the MAX6958/59 LED Drivers - MAX6958, MAX6959 Application Note 1942: Driving 4-1/2 Digit Counter Displays with the MAX6958/59 LED Drivers - MAX6958, MAX6959 Application Note 3461: Extending the MAX6959 LED Display-Driver Keyscan from 8-Keys to 12-Keys - MAX6958, MAX6959 Application Note 3509: Individual LED Intensity Control with MAX6958/MAX6959 LED Drivers - MAX6958, MAX6959

Reliability Reports

Show FIT data for: MAX6958 MAX6959 Request Reliability Report for: MAX6958 MAX6959 Underwriters Laboratories (UL®) Recognized

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-24 of 24

MAX6958	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6958AAPE			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6958BAPE			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6958AAPE+			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6958BAPE+			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6958AAEE			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6958AAEE-T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX6958BAEE			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6958BAEE-T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX6958AAEE+			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6958AAEE+T			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6958BAEE+			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6958BAEE+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX6959	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX6959AAPE			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6959BAPE			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6959AAPE+			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6959BAPE+			Active	PDIP(N);16 pin;158 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6959AAEE			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6959AAEE-T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX6959BAEE			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16-1*	-40°C to +125°C	RoHS/Lead-Free: No Materials Analysis
MAX6959BAEE-T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX6959AAEE+			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6959AAEE+T			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6959BAEE+			Active	QSOP;16 pin;31 mm² Outline Drawing: 21-0055 (PDF) Land Pattern: 90-0167 (PDF) Use pkgcode/variation: E16+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX6959BAEE+T			Active	Land Pattern: Not Available	-40°C to +125°C	See data sheet

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