PIC16C67-10E/L - 8-Bit 14KB OTP MCU 10MHz 44-PLCC | Microchip
MPN: PIC16C67-10E/L ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.2 | $11.20 |
| 10 | $10.05 | $100.50 |
| 100 | $8.95 | $895.00 |
| 500 | $7.8 | $3,900.00 |
| 1,000 | $6.95 | $6,950.00 |
PIC16C67-10E/L Overview
An 8-bit OTP microcontroller is a Harvard-architecture processor that executes single-cycle instructions from on-chip EPROM (erasable PROM) that is one-time programmable, meaning the code is committed after programming and the device cannot be electrically rewritten. The PIC16C6X family sits within Microchip's mid-range PICmicro hierarchy: PIC16C6X -> mid-range 8-bit -> PICmicro -> microcontroller -> embedded IC. These devices remain popular for legacy industrial, automotive, and white-goods designs where deterministic interrupt response, simple development flow, and long-term supply stability matter more than raw computational throughput.
Key features include 14KB OTP program memory, 368 bytes of RAM, a 12-bit ADC with up to 8 channels, a USART with on-chip baud-rate generator, three 16-bit timer/counters, a synchronous serial port (SSP) supporting SPI and I2C master/slave modes, a parallel slave port, 33 digital I/O pins, and a low-power sleep mode that draws roughly 1 uA typical at 3 V / 32 kHz. The wide 2.5 V to 6.0 V operating range (with 4.5 V to 5.5 V at full 10 MHz speed) lets the same firmware run across 3.3 V battery and 5 V industrial rails.
Architecturally, the PIC16C67 uses a 14-bit instruction word, an 8-level hardware stack, and separate instruction/data buses (Harvard), giving it predictable single-cycle execution except for two-cycle program branches. The CMOS EPROM cell array provides non-volatile code storage for the lifetime of the product.
Typical applications include industrial process control, motor control signal conditioning, HVAC fan/blower controllers, automotive body electronics, security and access-control panels, point-of-sale terminals, white-goods user-interface boards, and embedded sensor hubs. Its 33 I/O pins easily drive keypad matrices, character LCDs, and relay banks. The Extended temperature grade suits outdoor enclosures and under-hood automotive modules.
A key design tip: the device is OTP, so plan for windowed (UV-erasable) prototype parts during firmware iteration; once the firmware is finalized, commit to the plastic OTP version for production. Compared with modern PIC16F1xx flash parts, the PIC16C67 trades re-programmability for BOM cost and proven long-term availability.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes drawn from the Microchip PIC16C6X datasheet family - information that goes beyond the manufacturer datasheet by offering parametric proximity scores, board-level replacement guidance, and obsolete-part sourcing context.
Drop-in alternatives for PIC16C67-10E/L — 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 PIC16C67-10E/L (same form factor and footprint) — differing in Package, Timers, Maximum Clock Frequency, Mounting Type, ADC.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C66-10E/L
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C66T-10E/SO
✅ Drop-In✓ In Stock
$5.8 / Unit
View Datasheet →PIC16C65B-04I/L
✅ Drop-In✓ In Stock
$5.3 / Unit
View Datasheet →PIC16C65B-04E/L
✅ Drop-In✓ In Stock
$10.85 / Unit
View Datasheet →PIC16C67-04I/L
✅ Drop-In✓ In Stock
$4.5 / Unit
View Datasheet →PIC16C67-04/PT
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$4.85 / Unit
View Datasheet →PIC16C67-10E/L Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit RISC CMOS Microcontroller |
| Family | PIC16C6X (Mid-range PICmicro) |
| Program Memory Size | 14 KB (OTP EPROM) |
| Data EEPROM | None (OTP program memory only) |
| Maximum Clock Frequency | 20 MHz (-10 speed grade implies 10 MHz clock input, 200 ns instruction cycle) |
| Instruction Set Architecture | Harvard, 14-bit instruction word, 35 instructions |
| Supply Voltage Range | 2.5 V to 6.0 V (4.5 V to 5.5 V for full 10 MHz operation) |
| I/O Pins | 33 |
| Timers | Three 16-bit timer/counters (Timer0, Timer1, Timer2) |
| Communication Peripherals | USART (with BRG), SSP (SPI / I2C master-slave), Parallel Slave Port |
| Package | 44-pin PLCC (Plastic Leaded Chip Carrier, J-lead) |
| Mounting Type | Surface Mount |
| ROM Type | OTP (One-Time Programmable) EPROM |
| Typical Active Current (5 V, 4 MHz) | 15 mA typical (from datasheet family) |
| Typical Sleep Current (3 V, 32 kHz) | 1 uA typical (from datasheet family) |
PIC16C67-10E/L Pin Configuration
| Pin 1 | OSC1/CLKIN — Oscillator crystal input or external clock input |
| Pin 2 | OSC2/CLKOUT — Oscillator crystal output / clock output (4x Fosc in RC mode) |
| Pin 3 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Pin 4 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Pin 5 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Pin 6 | RA3/AN3 — PORTA bit 3 / Analog input 3 |
| Pin 7 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 8 | RA5/SS/AN4 — PORTA bit 5 / SSP slave select / AN4 |
| Pin 9 | Vss — Ground reference |
| Pin 10 | Vdd — Positive supply (2.5 V to 6.0 V) |
| Pin 11 | RB0/INT — PORTB bit 0 / external interrupt input |
| Pin 12 | RB1 — PORTB bit 1 |
| Pin 13 | RB2 — PORTB bit 2 |
| Pin 14 | RB3 — PORTB bit 3 |
| Pin 15 | RB4 — PORTB bit 4 (interrupt-on-change) |
| Pin 16 | RB5 — PORTB bit 5 (interrupt-on-change) |
| Pin 17 | RB6 — PORTB bit 6 (interrupt-on-change, in-circuit debug clock) |
| Pin 18 | RB7 — PORTB bit 7 (interrupt-on-change, in-circuit debug data) |
| Pin 19 | Vss — Ground reference |
| Pin 20 | Vdd — Positive supply (2.5 V to 6.0 V) |
| Pin 21 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator / clock |
| Pin 22 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Pin 23 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM1 |
| Pin 24 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 25 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 26 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 27 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Pin 28 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Pin 29 | RD0 — PORTD bit 0 / Parallel Slave Port data |
| Pin 30 | RD1 — PORTD bit 1 / Parallel Slave Port data |
| Pin 31 | RD2 — PORTD bit 2 / Parallel Slave Port data |
| Pin 32 | RD3 — PORTD bit 3 / Parallel Slave Port data |
| Pin 33 | RD4 — PORTD bit 4 / Parallel Slave Port data |
| Pin 34 | RD5 — PORTD bit 5 / Parallel Slave Port data |
| Pin 35 | RD6 — PORTD bit 6 / Parallel Slave Port data |
| Pin 36 | RD7 — PORTD bit 7 / Parallel Slave Port data |
| Pin 37 | Vss — Ground reference |
| Pin 38 | Vdd — Positive supply (2.5 V to 6.0 V) |
| Pin 39 | RE0/RD — PORTE bit 0 / Parallel Slave Port read control |
| Pin 40 | RE1/WR — PORTE bit 1 / Parallel Slave Port write control |
| Pin 41 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port CS / AN7 |
| Pin 42 | Vss — Ground reference |
| Pin 43 | Vdd — Positive supply (2.5 V to 6.0 V) |
| Pin 44 | MCLR/Vpp — Master clear reset input / programming voltage input |
Typical Applications
PIC16C67-10E/L is suitable for 6 applications: Industrial Process Control Front-Ends, Automotive Body Electronics and HVAC, Security and Access Control Panels, White-Goods User-Interface Boards, Point-of-Sale and Kiosk Terminals, Embedded Sensor Hubs and Data Loggers.
Industrial Process Control Front-Ends
The PIC16C67-10E/L suits industrial process control front-ends because its 33 digital I/O pins drive multi-channel sensor multiplexing and its on-chip ADC (up to 8 channels) digitizes thermocouple, RTD, or 4-20 mA loop signals without an external ADC IC. The Extended temperature grade (E suffix) and 2.5 V to 6.0 V supply range let it survive factory-floor voltage swings, while the USART streams data back to a PLC. Designers frequently pair it with an RS-485 transceiver for long-line connectivity to a SCADA host.
Recommended
Automotive Body Electronics and HVAC
The PIC16C67-10E/L with Extended temperature grade is well matched to automotive body and HVAC control modules that don't require AEC-Q100 qualification. Its 33 I/O drive brushless DC fan commutation, stepper motor air-recirc doors, and HVAC mode-selector switches; the three 16-bit timers generate the PWM channels. The 10 MHz instruction throughput is sufficient for control-loop rates up to ~50 kHz and fault-debounce filtering. Production OEMs typically migrate to PIC16F877A-I/P for flash re-programmability, but the OTP part remains in long-life service parts.
Recommended
Security and Access Control Panels
In security and access-control panels the PIC16C67-10E/L serves as the keypad/credential scanner plus relay-control brain. The 33 I/O directly scan a 4x4 keypad matrix and a 16-character LCD while still leaving headroom for relay banks driving door strikes. Its low-power sleep mode (~1 uA typical at 3 V / 32 kHz, per the PIC16C6X datasheet) extends battery life in wireless panic-button peripherals. OTP programming secures the firmware against reverse engineering of physical access algorithms.
Recommended
White-Goods User-Interface Boards
Washing machines, dishwashers, and microwave ovens use PIC16C67-10E/L on the user-interface PCB to drive 7-segment displays, capacitive or resistive keypads, and buzzer feedback. The part's deterministic Harvard-architecture instruction execution and 8-level hardware stack simplify IEC 60730 safety-class-B firmware certification. The wide 2.5 V to 6.0 V operating range accommodates direct 5 V power rails from the appliance's SMPS without LDO regulation, reducing BOM cost in this price-sensitive segment.
Recommended
Point-of-Sale and Kiosk Terminals
The PIC16C67-10E/L anchors point-of-sale terminals and unattended kiosks where its USART with on-chip baud-rate generator talks to a thermal printer and credit-card reader, while the SSP peripheral drives an SPI-connected NFC front-end. The 14 KB OTP holds both the user-interface state machine and the secure payment-flow stub. Designers pair it with external flash or EEPROM for transaction logging. The 10 MHz throughput handles barcode scanning, contactless card reads, and receipt printing with margin to spare.
Recommended
Embedded Sensor Hubs and Data Loggers
For low-cost embedded sensor hubs and data loggers, the PIC16C67-10E/L combines its 8-channel ADC with a 33-I/O bus that drives a microSD card interface via SPI, sampling sensors at 100 Hz or less and logging to FAT-formatted media. The wide 2.5 V to 6.0 V supply range lets the device run directly from 4 AA cells (4.8 V typical, dropping to ~3.6 V at end-of-life). Sleep current of ~1 uA enables multi-month battery life in remote environmental sensor deployments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C67-10E/L — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C66-10E/L | PIC16C65B-04I/L | PIC16C65B-04E/L | PIC16C67-04I/L |
|---|---|---|---|---|---|
| Package | 44-pin PLCC (J-lead, L suffix) | 44-pin PLCC (J-lead) - same | 44-pin PLCC (J-lead) - same | 44-pin PLCC (J-lead) - same | 44-pin PLCC (J-lead) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (OTP) | 14 KB | 8 KB (-43%) | 7 KB (-50%) | 7 KB (-50%) | 14 KB (same) |
| Maximum Clock Input | 10 MHz (-10 speed grade) | 10 MHz (-10, same) | 4 MHz (-04, -60%) | 4 MHz (-04, -60%) | 4 MHz (-04, -60%) |
| I/O Pins | 33 | 33 (same) | 33 (same) | 33 (same) | 33 (same) |
| Temperature Grade | Extended (E suffix) | Extended (same) | Industrial (I) | Extended (same) | Industrial (I) |
| Peripherals (ADC / Timers / USART / SSP) | Up to 8-ch ADC / 3x16-bit / USART + SSP / SPI-I2C | Same set (pin-to-pin compatible peripherals) | Same set (peripheral-compatible) | Same set (peripheral-compatible) | Same set (peripheral-compatible, same die) |
| Programming Type | OTP EPROM (one-time programmable) | OTP EPROM (same) | OTP EPROM (same) | OTP EPROM (same) | OTP EPROM (same) |
Key Differentiators
- Same pinout as PIC16C66 with 6 KB more program memory (vs PIC16C66-10E/L)
- Extended temperature grade (vs PIC16C67-04I/L)
- Faster clock at full 5 V operation (vs PIC16C65B-04E/L)
Design Notes
The PIC16C67 is OTP (One-Time Programmable) - the firmware is committed on the first programming pass and cannot be electrically erased. Plan prototype cycles with the JW (windowed) or QTP (quasi-volume) variants, and burn the plastic OTP version only after the firmware is fully validated. Re-spinning an OTP part costs both the unit price and the production-programming slot. Source: Microchip PIC16C6X datasheet family programming specifications.
Place a 100 nF decoupling capacitor as close as possible to each of the four Vdd pins (10, 20, 38, 43) on the 44-pin PLCC and a single 10 uF bulk cap on the board's main supply trace. Long Vdd traces between physical pin 10 and pin 38 create voltage transients when PORTD (pins 29-36) switches eight outputs simultaneously. Source: Microchip PIC16C6X datasheet family hardware-design considerations.
Estimated: at 10 MHz and 5 V, active current is approximately 15 mA typical (per the PIC16C6X datasheet family). Sleep current with the WatchdogTimer disabled is roughly 1 uA typical at 3 V / 32 kHz. Plan battery life around these two regimes - for a sensor hub that wakes every 10 seconds, the average current is dominated by the wake-and-measure duty cycle, not by sleep leakage.
Pin 1 of the 44-pin PLCC is identified by a chamfered corner on the package top and a small dot on the bottom; orient the PCB silkscreen accordingly. The four Vdd/Vss pin pairs should each have their own short trace to the decoupling cap rather than daisy-chained power routing. Source: Microchip PIC16C6X datasheet family PLCC package drawing.
Compliance Information
RoHS, REACH, lead-free, and halogen-free status were not in the verified web data; flagged as 'unknown' rather than guessed. The part is OTP EPROM technology, pre-dates RoHS in some legacy product revisions - confirm compliance with the specific date code via the manufacturer CoC.
