PIC16C54T-10E/SS - 8-Bit OTP MCU 10MHz 768B 20-SSOP | Microchip
MPN: PIC16C54T-10E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 10 | $3.49 | $34.90 |
| 100 | $2.94 | $294.00 |
| 500 | $2.61 | $1,305.00 |
| 1,000 | $2.32 | $2,320.00 |
PIC16C54T-10E/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O on one silicon die. The PIC16C5X belongs to the legacy OTP/EPROM-based CMOS MCU family in the broader 8-bit microcontroller taxonomy: microcontroller -> embedded controller -> semiconductor. It uses 12-bit wide instructions and a 33-instruction RISC set, achieving 2:1 code compression over many competing 8-bit MCUs in its class, which lowers program-memory consumption per application function.
Key features include single-cycle instruction execution (200 ns at 10 MHz, except program branches which are two-cycle), a fully static CMOS core, and an operating voltage range suited to 5V systems. The 10 MHz clock input directly supports a 200 ns instruction cycle, and the device draws low operating current typical of the PIC16C5X generation, making it suitable for cost-sensitive embedded control. OTP memory allows one-time programming at production, which simplifies BOM and reduces per-unit cost versus windowed or Flash variants.
Typical applications include industrial automation controllers, appliance and consumer-electronics control boards, automotive body and accessory subsystems, simple sensor-interface modules, and low-cost replacement of discrete logic. The 20-SSOP footprint supports compact surface-mount designs while retaining accessible I/O for hand-wired prototypes and ATE fixtures.
When designing with this part, evaluate the OTP constraint up-front: firmware cannot be field-updated, so production programming and test coverage must be complete before shipment. For new designs that require in-system reprogrammability or longer product lifecycle, evaluate Flash-based PIC16F equivalents in the same SSOP-20 footprint.
Drop-in alternatives for PIC16C54T-10E/SS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16C54T-10E/SS (same form factor and footprint) — differing in Package, Timers, Program Memory Size, Program Memory Type, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C54C-20I/SS
✅ Drop-In✓ In Stock
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View Datasheet →PIC16C54C-04I/SS
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$1.34 / Unit
View Datasheet →PIC16C54C-04/SS
✅ Drop-In✓ In Stock
$0.65 / Unit
View Datasheet →PIC16C54A-04/SS
✅ Drop-In✓ In Stock
$1.18 / Unit
View Datasheet →PIC16C54C-20E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C54-10I/SS
✅ Drop-In✓ In Stock
$2.1 / Unit
View Datasheet →PIC16C54T-10E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC |
| Family | PIC16C5X |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 768 B (512 x 12-bit words) |
| Data RAM | 25 B |
| Maximum Clock Frequency | 10 MHz |
| Instruction Cycle Time | 200 ns (single-cycle) |
| Instruction Set Size | 33 single-word instructions |
| Data Bus Width | 8 bit |
| I/O Pins | 12 |
| Operating Supply Voltage | 5 V (typical PIC16C5X range) |
| Operating Temperature Range | -40 C to +125 C (Extended 'E') |
| Package | 20-SSOP (5.30 mm body width) |
| Mounting Type | Surface Mount |
PIC16C54T-10E/SS Pin Configuration
| Pin 1 | RA2 — Bidirectional I/O port A bit 2 |
| Pin 2 | RA3 — Bidirectional I/O port A bit 3 |
| Pin 3 | RB0 — Bidirectional I/O port B bit 0 (also INT) |
| Pin 4 | RB1 — Bidirectional I/O port B bit 1 |
| Pin 5 | RB2 — Bidirectional I/O port B bit 2 |
| Pin 6 | RB3 — Bidirectional I/O port B bit 3 |
| Pin 7 | RB4 — Bidirectional I/O port B bit 4 |
| Pin 8 | RB5 — Bidirectional I/O port B bit 5 |
| Pin 9 | RB6 — Bidirectional I/O port B bit 6 |
| Pin 10 | RB7 — Bidirectional I/O port B bit 7 |
| Pin 11 | VSS — Ground reference |
| Pin 12 | OSC1 — Oscillator input / external clock input |
| Pin 13 | OSC2 — Oscillator output (crystal mode) |
| Pin 14 | T0CKI — Timer0 clock input |
| Pin 15 | /MCLR — Master Clear reset (active-low) |
| Pin 16 | VDD — Positive supply voltage |
| Pin 17 | RA0 — Bidirectional I/O port A bit 0 |
| Pin 18 | RA1 — Bidirectional I/O port A bit 1 |
| Pin 19 | NC — Not connected (per datasheet) |
| Pin 20 | NC — Not connected (per datasheet) |
Typical Applications
PIC16C54T-10E/SS is suitable for 6 applications: Industrial Automation Controllers, Appliance and Consumer Electronics Control, Automotive Body and Accessory Modules, Low-Cost Sensor Interface Modules, Replacement of Discrete Logic (Glue Logic Consolidation), Hobbyist and Educational Embedded Platforms.
Industrial Automation Controllers
The PIC16C54T-10E/SS is well-suited for industrial automation controllers because its 10 MHz core delivers 200 ns instruction cycles that easily handle encoder reading, valve actuation timing, and simple PLC-style ladder logic emulation. With 768 bytes of OTP and 25 bytes RAM, the MCU fits compact sequential-control programs such as conveyor sorters, pump sequencers, and small machine tool interlocks. Its Extended -40 C to +125 C temperature grade ensures reliable operation in unheated factory cabinets and outdoor equipment enclosures. The 12 I/O pins map cleanly to typical sensor-coil-driver architectures used in industrial control panels.
Recommended
Appliance and Consumer Electronics Control
The PIC16C54T-10E/SS fits appliance and consumer-electronics control boards where cost dominates over firmware-update flexibility. Its OTP program memory reduces per-unit cost versus Flash in high-volume production runs of washing machines, microwave ovens, and HVAC zone controllers. The 200 ns deterministic instruction cycle supports real-time tasks like keypad debouncing, LED multiplexing, and TRIAC phase-angle firing. With 12 I/O, the MCU directly interfaces with seven-segment displays, keypads, and triac drivers without external glue logic, lowering total BOM cost in mass-production consumer designs.
Recommended
Automotive Body and Accessory Modules
The PIC16C54T-10E/SS Extended temperature grade enables deployment in automotive body controllers such as window lift modules, mirror adjusters, seat controllers, and accessory lighting drivers. The 5 V operation tolerance and 10 MHz instruction cycle provide deterministic timing for PWM-driven loads, while the 25-byte RAM accommodates small state machines for fault tracking. For non-safety body electronics, the OTP architecture delivers low per-unit cost across high-volume automotive production runs, supporting OEM cost-down programs. For safety-critical subsystems, choose AEC-Q100-qualified PIC16F or dsPIC variants.
Recommended
Low-Cost Sensor Interface Modules
The PIC16C54T-10E/SS works well in sensor-interface modules that digitize analog sensor outputs, perform linearization, and drive simple display or relay outputs. With its 10 MHz clock and 12-bit instruction word, the MCU can sample thermistor, photocell, or hall-effect sensors at rates suitable for thermostat and fluid-level applications. The 25-byte RAM is sufficient to hold calibration coefficients for a few sensor channels. The 20-SSOP package supports compact PCB layouts for inline sensor modules used in HVAC and refrigeration equipment.
Recommended
Replacement of Discrete Logic (Glue Logic Consolidation)
The PIC16C54T-10E/SS consolidates discrete 74-series logic gates, latches, and timers into a single programmable component, reducing PCB area and BOM count. With 12 I/O pins and a 33-instruction RISC set, the MCU replaces dozens of discrete packages in timing, sequencing, and state-machine applications such as vending machine controllers, security keypad scanners, and washing-machine timing logic. The OTP memory eliminates per-bit programming overhead typical of PAL/GAL devices, while the 10 MHz clock provides faster state transitions than discrete logic implementations.
Recommended
Hobbyist and Educational Embedded Platforms
The PIC16C54T-10E/SS serves as an accessible learning platform for students and hobbyists studying RISC microcontroller architecture. Its 33-instruction RISC set, 12-bit instruction width, and well-documented datasheet make it ideal for teaching assembly language fundamentals, timing loops, and I/O bit-banging. The 20-SSOP package is breadboard-compatible with SSOP-to-DIP breakout boards, and the OTP architecture teaches production-programming workflow using standard PIC programmers. Sample programs typically include LED blink, button-debounced input, and simple UART bit-banging at 10 MHz clock.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C54T-10E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C54C-20I/SS | PIC16C54C-04I/SS | PIC16C54C-04/SS | PIC16C54A-04/SS | PIC16C54C-20E/SS | PIC16C54-10I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Maximum Clock Frequency | 10 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 10 MHz |
| Program Memory Size | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) | 768 B (512 x 12) |
| Data RAM | 25 B | 25 B | 25 B | 25 B | 25 B | 25 B | 25 B |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +125C (Extended) | 0C to +70C (Commercial) |
| Memory Type | OTP | OTP | OTP | OTP | OTP | OTP | OTP |
| Core | 8-bit PIC16C5X | 8-bit PIC16C5X | 8-bit PIC16C5X | 8-bit PIC16C5X | 8-bit PIC16C5X | 8-bit PIC16C5X | 8-bit PIC16C5X |
Key Differentiators
- Extended -40 C to +125 C temperature grade in SSOP-20 (vs PIC16C54-10I/SS)
- 10 MHz clock vs 4 MHz legacy variants (vs PIC16C54A-04/SS)
- Same instruction set as C and A silicon revisions (vs PIC16C54C-04I/SS)
Design Notes
The PIC16C54T-10E/SS uses OTP (One-Time Programmable) memory, which cannot be erased or rewritten. Verify firmware functionality on a windowed PIC16C5X prototype before committing to OTP production programming. Configuration word settings (oscillator mode, watchdog timer, code protection) are also OTP and cannot be changed after programming. Estimated impact: missing this step typically forces full silicon scrappage on first run.
Place a 100 nF decoupling capacitor as close as possible between VDD (pin 16) and VSS (pin 11). For crystal-oscillator applications, keep the crystal and its load capacitors physically close to OSC1/OSC2 (pins 12-13) to minimize parasitic capacitance. The /MCLR pin (pin 15) requires a pull-up resistor to VDD; in noisy environments add a 100 nF cap from /MCLR to VSS for noise immunity.
Route the oscillator traces short and symmetric to avoid asymmetric duty cycle at OSC1. Keep digital switching traces away from the oscillator loop to prevent injection-locking or jitter. The SSOP-20 package has a thermal pad-less footprint; rely on copper pours tied to VSS for heat spreading, though PIC16C5X dissipation is typically below 50 mW.
The PIC16C54T-10E/SS 12 I/O pins can sink or source up to 25 mA per pin (max 100 mA per port), but practical designs should limit continuous current to 10 mA per pin for reliability. Add series resistors on I/O lines that drive external cables to limit fault currents. For opto-isolated outputs, ensure the LED forward current stays within the opto-coupler input specification (typically 10-15 mA).
Estimated: at 10 MHz clock and 5 V supply, PIC16C54T-10E/SS typical operating current is approximately 2-5 mA. For battery-powered applications, use the sleep-mode instruction to drop current to microamp range, and wake via watchdog timer or external interrupt. Brown-out detection is not implemented on PIC16C54 silicon; ensure external voltage supervisor resets /MCLR below 4.5 V if 5 V rail sag is expected.
Compliance Information
Extended 'E' temperature grade supports automotive body-electronics environments but part is not AEC-Q100 qualified. RoHS/REACH status not stated in verified web data - mark as unknown pending manufacturer declaration.