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
What are the key features of PIC16C923-04/PT?
- 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
What is PIC16C923-04/PT used for?
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.
What are the specifications of PIC16C923-04/PT?
| 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 |
Where can I find the PIC16C923-04/PT datasheet?
PIC16C923-04/PT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16C923-04/PT?
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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About Microchip
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More from Microchip
| 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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