Product Summary

The MAX7219/MAX7221 are compact, serial input/output
common-cathode display drivers that interface
microprocessors (μPs) to 7-segment numeric LED displays
of up to 8 digits, bar-graph displays, or 64 individual
LEDs. Included on-chip are a BCD code-B
decoder, multiplex scan circuitry, segment and digit
drivers, and an 8x8 static RAM that stores each digit.
Only one external resistor is required to set the segment
current for all LEDs. The MAX7221 is compatible
with SPI?, QSPI?, and Microwire?, and has slew-ratelimited
segment drivers to reduce EMI.

Features

The MAX7219/MAX7221 are compact, serial input/output
common-cathode display drivers that interface
microprocessors (μPs) to 7-segment numeric LED displays
of up to 8 digits, bar-graph displays, or 64 individual
LEDs. Included on-chip are a BCD code-B
decoder, multiplex scan circuitry, segment and digit
drivers, and an 8x8 static RAM that stores each digit.
Only one external resistor is required to set the segment
current for all LEDs. The MAX7221 is compatible
with SPI?, QSPI?, and Microwire?, and has slew-ratelimited
segment drivers to reduce EMI.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX7219ENG+
MAX7219ENG+

Maxim Integrated Products

LED Display Drivers 8-Digit LED Display Driver

Data Sheet

0-1: $9.83
1-25: $6.55
25-50: $4.14
50-100: $4.08
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX700
MAX700

Other


Data Sheet

Negotiable 
MAX7000
MAX7000

Other


Data Sheet

Negotiable 
MAX7000A
MAX7000A

Other


Data Sheet

Negotiable 
MAX700C/D
MAX700C/D

Maxim Integrated Products

Supervisory Circuits

Data Sheet

Negotiable 
MAX700CPA
MAX700CPA

Maxim Integrated Products

Supervisory Circuits Integrated Circuits (ICs)

Data Sheet

Negotiable 
MAX700CPA+
MAX700CPA+

Maxim Integrated Products

Supervisory Circuits Power-Supply Monitor w/Reset

Data Sheet

0-1: $3.60
1-25: $2.40
25-50: $1.74
50-250: $1.71