PIC16C923-04/PT Microchip Integrated Circuit (Quad Flat Packages) In Stock
Microchip PIC16C923 is an 8-bit OTP PIC microcontroller running at up to 4 MHz with integrated LCD driver, multiple timers, and USART in a QFP surface-mount package. Designed for legacy low-cost consumer and industrial control applications.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC16C923-04/PT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.1779(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit PIC16 OTP core at up to 4 MHz with integrated LCD segment driver, eliminating external display controller ICs
- On-chip USART serial interface enables direct RS-232 or RS-485 communication without glue logic
- QFP surface-mount package with 64 or 68 pins provides ample I/O for LCD, keypad, and sensor interfaces in a single chip
Applications
The PIC16C923 targets legacy consumer appliances, utility meters, and industrial panel displays that require an integrated LCD driver alongside general-purpose microcontroller functions at 4 MHz clock speed. Its OTP (one-time programmable) memory architecture is favored for high-volume production where firmware is locked at programming time, minimizing per-unit programming costs. Replacement boards for older instrumentation and security-panel controllers also use this device for backwards-compatible firmware deployments.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1990-01-01 |
| YTEOL | 3 |
| Has ADC | NO |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC |
| Clock Frequency-Max | 4MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | S-PQFP-G64 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 50 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP64,.47SQ |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE, FINE PITCH |
| Qualification Status | Not Qualified |
| RAM (bytes) | 176 |
| ROM (words) | 4096 |
| ROM Programmability | OTPROM |
| Speed | 4MHz |
| Supply Current-Max | 5mA |
| Supply Voltage-Max | 6V |
| Supply Voltage-Min | 5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| 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
What clock frequency does the PIC16C923 support, and what does that mean for simple display-control tasks?
The PIC16C923 runs at up to 4 MHz, delivering 1 MIPS throughput. For an LCD refresh loop updating 32 segments at 60 Hz, that budget provides approximately 16,000 instruction cycles between refresh events — more than sufficient for scan, decode, and GPIO toggling in a 4-digit numeric display application.
Why does the OTP memory architecture of the PIC16C923 benefit high-volume production over flash-based alternatives?
OTP memory is programmed once during manufacturing and cannot be altered, preventing accidental firmware overwrites in the field. For production runs above 10,000 units, OTP devices cost 15–30% less per unit than equivalent flash-based MCUs and require no read-back verification step, reducing per-board programming time by 3–5 seconds.
How does the integrated LCD driver in the PIC16C923 reduce external component count versus a standalone MCU?
The PIC16C923 integrates a static or 1/2, 1/3, or 1/4 multiplex LCD driver supporting up to 4 × 23 = 92 segments, removing the need for a separate LCD controller IC and level-shift resistors. This reduces BOM cost by 2–4 components and saves up to 200 mm² of board area compared to an external driver like the HT1621.
For a meter replacement PCB, how does the QFP package of the PIC16C923 compare to a DIP alternative?
The PIC16C923 in a 64-pin QFP (10 mm × 10 mm, 0.5 mm pitch) occupies roughly 100 mm² versus approximately 900 mm² for a 64-pin ceramic DIP, allowing a 9× reduction in processor footprint. This space saving is critical when replacing legacy DIP boards with compact SMT designs in panel-meter enclosures.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $8.4000 | $8.40 |
| 2+ | $7.0000 | $14.00 |
| 5+ | $6.1600 | $30.80 |
| 100+ | $4.4477 | $444.77 |
| 500+ | $4.3081 | $2154.05 |
| 1000+ | $4.1779 | $4177.90 |
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