AY0438-I/L Microchip Undefined or Miscellaneous (Plastic Leaded Chip Carrier) In Stock
Microchip AY0438-I/L is a serial-input LCD driver capable of driving 4-digit, 32-segment static displays from a 3 V to 8.5 V supply, housed in a 44-pin PLCC package for straightforward board integration. From $2.10 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- Plastic Leaded Chip Carrier
- Pin Count
- 44
- Lifecycle
- OBSOLETE
- Datasheet
- AY0438-I/L Datasheet PDF
- Category
- Undefined or Miscellaneous
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Drives up to 32 LCD segments for 4-digit static display with serial data input, minimizing microcontroller I/O pin usage
- Wide 3 V to 8.5 V supply range enabling compatibility with both 3.3 V and 5 V system rails without a voltage regulator
- 44-pin PLCC package with RoHS-compliant construction supporting reliable long-lifecycle industrial display product integration
Applications
The AY0438-I/L is used in industrial panel meters, energy monitors, and white goods appliances where a 4-digit, 32-segment LCD must be driven from a serial interface with minimal wiring. Its wide 3 V to 8.5 V supply range makes it compatible with battery-operated handheld instruments and 5 V microcontroller-based designs alike. The static drive architecture eliminates multiplexing complexity, simplifying firmware development for consumer electronics with persistent numeric readouts.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PLCC-44 |
| YTEOL | 0 |
| Data Input Mode | SERIAL |
| Display Mode | SEGMENT |
| Interface IC Type | LIQUID CRYSTAL DISPLAY DRIVER |
| JESD-30 Code | S-PQCC-J44 |
| JESD-609 Code | e3 |
| Multiplexed Display Capability | NO |
| Number of Digits/Characters | 4-DIGIT |
| Number of Functions | 1 |
| Number of Segments | 32 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LDCC44,.7SQ |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.06mA |
| Supply Voltage-Max | 8.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | J BEND |
| Terminal Pitch | 1.27mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| fmax-Min | 1.5MHz |
| Package | Plastic Leaded Chip Carrier |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many LCD segments can the AY0438-I/L drive, and how does this limit display complexity?
The AY0438-I/L drives up to 32 LCD segments arranged as a 4-digit display in static mode. Each digit typically uses 8 segments for alphanumeric representation, so the 32-segment capacity covers a full 4-digit numeric readout with decimal points. Designs needing more digits require either multiple AY0438 devices daisy-chained via serial input or a higher-segment-count alternative driver.
What serial interface does the AY0438-I/L use, and how many microcontroller pins does it need?
The AY0438-I/L uses a serial data input interface that typically requires only 2 to 3 microcontroller I/O pins for data, clock, and chip select signals. Compared to parallel LCD drivers that consume 8 or more I/O lines, this serial approach leaves more GPIO available for other peripherals in I/O-constrained microcontrollers operating from a 3 V to 8.5 V supply.
For a 5 V battery-backed panel meter design, why might the AY0438-I/L be selected over a multiplexed LCD driver?
Static drive on the AY0438-I/L means each segment is continuously driven at full contrast without multiplexing, delivering better LCD visibility in bright ambient light at supply voltages from 3 V to 8.5 V. Unlike multiplexed drivers that require a display refresh timer and interrupt service routine, static drive allows the microcontroller to enter deep sleep and wake only for display updates, extending battery life in panel meter applications.
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