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Product Detailed Parameters
- Description：IC DRVR 32 SEGMENT 40DIP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Display Type：LCD
- Configuration：32 Segment
- Interface：Parallel
- Digits or Characters：16 Characters
- Voltage - Supply：3V ~ 8.5V
- Operating Temperature：0°C ~ 70°C
- Mounting Type：Through Hole
- Package / Case：40-DIP (0.600", 15.24mm)
- Supplier Device Package：40-PDIP
- Current - Supply：25 µA
- Grade：-
- Qualification：-
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Overview
The AY0438/P is a 32-segment CMOS LCD driver manufactured by Microchip Technology. It features a 40-lead Dual In-line Package (PDIP). The device drives up to 32 LCD segments of arbitrary configuration using only three control lines. Key electrical characteristics include wide supply voltage range, low-power operation, high-noise immunity, and a wide temperature range. It incorporates an on-chip oscillator and provides electrostatic discharge protection on all pins.
Feature Summary
- Drives up to 32 LCD segments of arbitrary configuration
- CMOS process for wide supply voltage range and low-power operation
- CMOS and TTL-compatible inputs with ESD protection
- On-chip oscillator requiring only three control lines
Applications
- Direct interface with microcontrollers for LCD display modules
- Driving standard 7-segment, 9-segment, 14-segment, or 16-segment character displays
- Cascaded configurations for extended segment requirements
Procurement Notes
Verify the package type matches the required DIP format. Confirm the manufacturer is Microchip Technology. Ensure the part number suffix indicates the PDIP variant. Check datasheet revisions for any pinout updates. Validate compatibility with system voltage levels.
Selection Notes
Select this component for applications requiring direct LCD segment driving without complex multiplexing. It is suitable for systems needing CMOS/TTL compatibility. Consider cascading capabilities if more than 32 segments are needed. Verify power supply constraints align with the wide voltage range specification.
Part Context
This component belongs to the AY04 series of LCD drivers from Microchip Technology. It is designed as a complete CMOS display driver solution. The series supports various packaging options including PLCC variants. It serves as a dedicated interface between digital logic and liquid crystal displays.
Replacement Considerations
The AY0438L is a documented alternative within the same family. Both parts share identical functional specifications and feature sets. Verify package compatibility when substituting, as the L variant may offer different physical dimensions.
