PALMTOP COMPUTER AND LCD POWER SUPPLY REGULATORS The MAX722CSE is a serial input/output common-cathode display driver from Maxim Integrated (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Maxim Integrated (now Analog Devices)
- **Part Number:** MAX722CSE
- **Package:** 24-pin SOIC (Small Outline Integrated Circuit)
- **Operating Voltage:** 4V to 5.5V
- **Supply Current:** 150µA (typical)
- **Data Interface:** Serial (SPI-compatible)
- **Maximum Segment Current:** 40mA per segment
- **Maximum Display Digits:** 8 digits (7-segment or 8x individual LEDs)
- **Brightness Control:** Digital (16-step)
- **Operating Temperature Range:** 0°C to +70°C (Commercial grade)
- **Shutdown Mode:** Yes (with data retention)
### **Descriptions:**
The MAX722CSE is a compact, serial-interfaced LED display driver designed to control common-cathode seven-segment numeric LED displays, bar graphs, or discrete LEDs. It includes an on-chip BCD decoder, multiplex scan circuitry, segment drivers, and an SPI-compatible serial interface, reducing the need for external components.
### **Features:**
- **SPI-Compatible Serial Interface** – Works with microcontrollers using a 3-wire interface (DIN, CLK, LOAD/CS).
- **BCD Decoder** – Converts binary data to 7-segment display patterns.
- **Multiplexed Display Control** – Supports up to 8 digits with minimal external components.
- **Segment Drive Capability** – Up to 40mA per segment for bright LED displays.
- **Digital Brightness Control** – Adjustable via 16-step PWM.
- **Shutdown Mode** – Reduces power consumption while retaining data.
- **Low Power Consumption** – Typically 150µA operating current.
- **No External Components Required** – Integrated scan and drive circuitry.
This information is strictly based on the manufacturer's datasheet and technical documentation.
