Microchip Technology

PIC16LC77-04/P - 8-bit PIC MCU 14KB OTP 4MHz 40-PDIP | Microchip

MPN: PIC16LC77-04/P ✗ End of Life

In Stock Ships in 1-3 business days

2.5 V to 6 V Vdss 40-PDIP (DIP-40) Package 4 MHz Speed OTP (One-Time Programmable) Memory

From $5.2 USD / Unit

MOQ: 1 |

Price updated: 2026-09-22

Volume Pricing

Qty	Unit Price	Extended
1	$7.5	$7.50
10	$6.8	$68.00
100	$6.2	$620.00
500	$5.65	$2,825.00
1,000	$5.2	$5,200.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

PIC16LC77-04/P Overview

The Microchip Technology PIC16LC77-04/P is an 8-bit CMOS microcontroller from the PIC16C family with 14KB OTP program memory (8K x 14 words), 368 bytes of data RAM, and 33 digital I/O lines, packaged in a 40-pin PDIP through-hole package. It operates up to 4 MHz from a 2.5V to 6.0V supply, integrates an 8-bit ADC, and is specified over the commercial 0C to +70C temperature range. The part carries the legacy "L" (low-power CMOS) designator in its name and is supplied in tube packaging.

What is a PIC microcontroller? PIC (Peripheral Interface Controller) microcontrollers are 8-bit RISC-based Harvard-architecture microcontrollers originally developed by General Instrument's Microelectronics Division and popularized by Microchip Technology. The PIC16 family sits in the mid-range tier of the PIC lineup, offering a balance of performance, peripheral integration, and code density for embedded control. PIC microcontrollers are widely used in industrial, automotive, consumer, and appliance applications, with a hierarchical taxonomy of 8-bit MCU -> RISC MCU -> microcontroller -> embedded IC -> semiconductor.

Key features include 14KB OTP program memory enabling one-time programmable firmware storage, 368 bytes of data RAM for variable workspace, an 8-bit on-chip A/D converter for analog signal acquisition, and 33 I/O pins with programmable direction and pull-up configuration. The device also includes a programmable watchdog timer, multiple timer modules, and synchronous/asynchronous serial port support.

Technically, the PIC16LC77-04/P uses Microchip's mid-range 14-bit instruction word architecture with a single accumulator (W register) and a 2-stage pipeline. The 4 MHz oscillator yields 1 MIPS of processing performance. Internal oscillator components and the CMOS peripheral bus provide ample drive capability while keeping typical active current low, supporting battery-friendly designs in the 2.5V to 6.0V operating window.

Typical applications include industrial control systems, appliance controllers, automotive body electronics (non-safety), instrumentation front-ends, and any legacy PIC16 design migrating from windowed or UV-erasable parts. It is also commonly used in educational lab equipment and OEM products requiring proven PIC16 firmware reuse.

When designing with this part, note the OTP (one-time programmable) program memory prevents firmware updates in the field - prototypes should be built on flash-based PIC16F variants (such as the PIC16F77 or PIC16F877A) and ported to the OTP die once firmware is finalized. Plan the ADC input multiplexing and reference selection early to avoid late-stage pin reassignment.

This page synthesizes distributor stock levels from Mouser, DigiKey, Octopart, and Jotrin, alongside same-brand drop-in PIC16LC77 variants and cross-brand comparison data not consolidated on any single distributor page.

Drop-in alternatives for PIC16LC77-04/P — 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 PIC16LC77-04/P (same form factor and footprint) — differing in Program Memory Size, Program Memory Type, Maximum Clock Frequency, Mounting Type, Operating Temperature.

PIC16C77-04/PQ

Microchip Technology

Program Memory Size: 14 KB

Program Memory Type: OTP EPROM (14 KB)

✅ Drop-In

📦 40-PDIP

Flash memory (4KB) vs OTP (14KB), 28 I/O vs 33 I/O (-15%), same 40-PDIP footprint, 20 MHz vs 4 MHz

📋 Reference alternative (not in catalog)

PIC16LC77-04/P Maximum Ratings & Electrical Characteristics

Core	PIC16 (8-bit RISC, 14-bit instruction word)
Program Memory Type	OTP (One-Time Programmable)
Program Memory Size	14 KB (8K x 14 words)
Data RAM Size	368 B
Data Bus Width	8 bit
ADC Resolution	8 bit
Maximum Clock Frequency	4 MHz
Number of I/Os	33
Operating Supply Voltage	2.5 V to 6 V
Operating Temperature	0 C to +70 C
Package / Case	40-PDIP (DIP-40)
Mounting Style	Through Hole
Packaging	Tube

PIC16LC77-04/P Pin Configuration

Pin 1	MCLR/VPP — Master clear (reset) input / programming voltage
Pin 2	RA0/AN0 — PORTA bit 0 / analog input channel 0
Pin 3	RA1/AN1 — PORTA bit 1 / analog input channel 1
Pin 4	RA2/AN2 — PORTA bit 2 / analog input channel 2
Pin 5	RA3/AN3/VREF — PORTA bit 3 / analog input channel 3 / ADC reference
Pin 6	RA4/T0CKI — PORTA bit 4 / Timer0 clock input
Pin 7	RA5/AN4/SS — PORTA bit 5 / analog input channel 4 / SPI slave select
Pin 8	RE0/RD/AN5 — PORTE bit 0 / read control / analog input channel 5
Pin 9	RE1/WR/AN6 — PORTE bit 1 / write control / analog input channel 6
Pin 10	RE2/CS/AN7 — PORTE bit 2 / chip select / analog input channel 7
Pin 11	VDD — Positive supply voltage (2.5V to 6V)
Pin 12	VSS — Ground reference
Pin 13	OSC1/CLKIN — Oscillator crystal input / external clock input
Pin 14	OSC2/CLKOUT — Oscillator crystal output / clock output
Pin 15	RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input
Pin 16	RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / Capture/Compare/PWM 2
Pin 17	RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1
Pin 18	RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock
Pin 19	RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0
Pin 20	RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1
Pin 21	RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2
Pin 22	RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3
Pin 23	RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data
Pin 24	RC5/SDO — PORTC bit 5 / SPI data out
Pin 25	RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock
Pin 26	RC7/RX/DT — PORTC bit 7 / USART receive / USART data
Pin 27	RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4
Pin 28	RD5/PSP5 — PORTD bit 5 / parallel slave port bit 5
Pin 29	RD6/PSP6 — PORTD bit 6 / parallel slave port bit 6
Pin 30	RD7/PSP7 — PORTD bit 7 / parallel slave port bit 7
Pin 31	VSS — Ground reference
Pin 32	VDD — Positive supply voltage
Pin 33	RB0/INT — PORTB bit 0 / external interrupt input
Pin 34	RB1 — PORTB bit 1
Pin 35	RB2 — PORTB bit 2
Pin 36	RB3 — PORTB bit 3
Pin 37	RB4 — PORTB bit 4
Pin 38	RB5 — PORTB bit 5
Pin 39	RB6/PGC — PORTB bit 6 / ICSP clock
Pin 40	RB7/PGD — PORTB bit 7 / ICSP data

Typical Applications

PIC16LC77-04/P is suitable for 6 applications: Industrial Control Systems, Appliance Controllers, Automotive Body Electronics (Non-Safety), Instrumentation Front-Ends, Educational Lab Boards and Trainer Kits, Legacy Product Sustainment.

🏭

Industrial Control Systems

The PIC16LC77-04/P fits industrial control systems that require a proven 8-bit microcontroller with on-chip ADC and ample digital I/O for sensor aggregation and actuator drive. Its 33 I/O lines can interface directly to opto-isolated inputs, relay drivers, and 24V-tolerant signal conditioning networks through external protection. The 14KB OTP program memory accommodates moderate-complexity control logic such as PID loops, state machines, and HMI keyscan routines. At 4 MHz the device delivers 1 MIPS which is sufficient for typical 1-10 kHz control loops found in conveyor, pump, and motor starter applications. Designers value the through-hole 40-PDIP package for ruggedized enclosures where rework and field service are routine. Pair the PIC16LC77-04/P with external EEPROM for parameter storage and a watchdog supervisor for failsafe industrial behavior.

Recommended

PIC16F877A-I/P (Flash-based equivalent for development and field-upgradeable industrial controllers) PIC16LC711-04/P · Microchip Technology PIC16LC715-04/P · Microchip Technology

🏭

Appliance Controllers

The PIC16LC77-04/P is well suited for appliance controllers including washing machines, dishwashers, microwave ovens, and HVAC thermostats where cost-sensitive, high-volume production justifies OTP memory. The 8-bit ADC integrates directly with thermistor, pressure, and humidity sensors, while the 33 I/O pins drive relay coils, triac gates, seven-segment displays, and keypads. The low-power CMOS process keeps standby current low for energy-star compliant appliances. The 4 MHz operating frequency is more than adequate for appliance control loops running at 100 Hz to 1 kHz update rates. Drop-in compatibility with the flash-based PIC16F77 lets engineering teams prototype on flash parts and migrate to the PIC16LC77-04/P for production cost reduction once firmware is locked.

Recommended

PIC16F77-I/P · Microchip Technology PIC16LC711-04/P · Microchip Technology

🚗

Automotive Body Electronics (Non-Safety)

The PIC16LC77-04/P, while not AEC-Q100 qualified, has historically been used in non-safety automotive body electronics such as interior lighting controllers, seat position memory, mirror adjusters, and accessory modules where the PIC16 family has proven reliability. For new automotive designs, designers should select the AEC-Q100 qualified PIC16F77-I/P or PIC16F877A-I/P variants. The 40-PDIP through-hole package supports robust connector-based assembly lines typical of body electronics modules. The 33 I/O count interfaces with H-bridge drivers, LED matrix controllers, and CAN/LIN transceivers through external glue logic. Validate thermal and vibration margins against the automotive application profile even for non-safety subsystems.

Recommended

PIC16F877A-I/P (Automotive-grade flash MCU upgrade with same 40-PDIP footprint for safety-critical body modules)

🔧

Instrumentation Front-Ends

The PIC16LC77-04/P serves as a low-cost front-end controller in bench-top instrumentation including digital multimeters, signal generators, and laboratory data acquisition modules. Its 8-bit ADC provides basic measurement resolution for voltage, current, and temperature channels, while the 368-byte RAM and 33 I/O support LCD driving and keypad scanning. Designers can implement custom measurement sequences in software and store calibration constants in external EEPROM accessible through I2C or SPI. The PIC mid-range instruction set is straightforward for assembly-language optimization of measurement routines. The through-hole 40-PDIP package accommodates prototyping sockets and clip-on emulator headers during development.

Recommended

PIC16F77-I/P · Microchip Technology PIC16LC74A-04/PQ · Microchip Technology

🎓

Educational Lab Boards and Trainer Kits

The PIC16LC77-04/P has long been used in university microcontroller courses and OEM training kits because of the through-hole 40-PDIP package that fits standard breadboards and ZIF sockets used in academic laboratories. Students can program the device using PICStart Plus or other legacy programmers available in university labs. The 14KB OTP memory gives sufficient headroom for teaching multi-module firmware projects. The straightforward PIC16 mid-range architecture is well documented in textbooks and online tutorials. Modern curricula typically use the flash-based PIC16F77 or PIC16F877A which provide the same pinout but allow repeated erase/program cycles suitable for student experimentation.

Recommended

PIC16F77-I/P · Microchip Technology

🔧

Legacy Product Sustainment

The PIC16LC77-04/P is appropriate for legacy product sustainment, manufactured activity replacement, and obsolescence management of mature designs that have been in production for decades. Industries such as medical instrumentation, aerospace ground support, and industrial process control continue to deploy legacy PIC16 designs and use the PIC16LC77-04/P as a long-term supply chain anchor. The OTP memory guarantees firmware immutability which is desirable in regulated environments where configuration drift must be prevented. For new designs in similar application spaces, transition to the flash-based PIC16F77 or PIC16F877A to gain in-circuit reprogramming and broader long-term support.

Recommended

PIC16F77-I/P · Microchip Technology

Recommended Products Summary

PIC16F877A-I/P Flash-based equivalent for development and field-upgradeable industrial controllers Used in: Industrial Control Systems, Automotive Body Electronics (Non-Safety) PIC16LC711-04/P Microchip Technology Used in: Industrial Control Systems, Appliance Controllers PIC16LC715-04/P Microchip Technology Used in: Industrial Control Systems PIC16F77-I/P Microchip Technology Used in: Appliance Controllers, Instrumentation Front-Ends, Educational Lab Boards and Trainer Kits, Legacy Product Sustainment PIC16LC74A-04/PQ Microchip Technology Used in: Instrumentation Front-Ends

What is the program memory size of PIC16LC77-04/P?

The PIC16LC77-04/P has 14 KB of OTP (one-time programmable) program memory, organized as 8K x 14-bit instruction words. According to the Microchip datasheet, this provides storage for approximately 8,192 single-word instructions. The OTP memory cannot be erased after programming, so prototypes should be developed on flash-based PIC16F parts such as the PIC16F77.

What is the maximum clock frequency of PIC16LC77-04/P?

The PIC16LC77-04/P operates at a maximum clock frequency of 4 MHz, yielding 1 MIPS of processing performance under the PIC mid-range 4-clock-per-instruction architecture. This is the -04 speed grade designation; other grades in the family support 20 MHz and 40 MHz operation for higher throughput. At 4 MHz and 5V supply the device delivers the rated MIPS with low active current consumption.

Does PIC16LC77-04/P have an ADC?

Yes, the PIC16LC77-04/P integrates an 8-bit on-chip analog-to-digital converter. According to Microchip datasheet documentation, the ADC supports multiple input channels multiplexed through the device's I/O pins and offers selectable reference voltage options. The 8-bit resolution is well-suited for basic sensor monitoring, battery voltage measurement, and control loop feedback in portable designs.

What is the operating voltage range of PIC16LC77-04/P?

The PIC16LC77-04/P operates from 2.5 V to 6.0 V supply voltage. The "L" in the part number designates the low-power CMOS process variant. According to the Microchip datasheet, operation within this range ensures correct oscillator behavior, ADC linearity, and I/O drive levels across the full 0C to +70C commercial temperature range.

How many I/O pins does PIC16LC77-04/P have?

The PIC16LC77-04/P provides 33 digital I/O pins across its 40-pin PDIP package. Several pins are multiplexed with the on-chip 8-bit ADC, timer modules, and serial port. Each I/O pin can be individually configured as input or output, with optional internal weak pull-up resistors controlled by software, eliminating the need for external pull-ups in many designs.

Where to buy PIC16LC77-04/P online?

PIC16LC77-04/P can be purchased from authorized distributors including Mouser, DigiKey, and Octopart-listed suppliers like UTSOURCE and Jotrin Electronics. As of 2026-09-22, distributor pricing shows a typical unit price around $7.50 at qty-1, with break pricing down to roughly $5.20 at qty-1000. Stock availability varies by distributor given the part's NRND lifecycle designation.

What is the price of PIC16LC77-04/P?

Pricing for PIC16LC77-04/P as of 2026-09-22 ranges from approximately $7.50 at qty-1 down to $5.20 at qty-1000 across major distributors. Third-party suppliers such as UTSOURCE and Jotrin list the part in a similar band. Because the device is NRND, pricing may trend upward as inventory tightens; check Mouser and DigiKey for real-time stock and any last-time-buy notices.

What is the lead time for PIC16LC77-04/P?

Lead time for PIC16LC77-04/P varies by distributor given the NRND lifecycle status. As of 2026-09-22, DigiKey and Mouser stock levels fluctuate and may show limited or zero stock at times. Third-party distributors like UTSOURCE typically maintain some inventory with shipping lead times of 2 to 6 weeks depending on batch availability.

Is PIC16LC77-04/P in stock?

Stock for PIC16LC77-04/P as of 2026-09-22 is limited across major distributors due to its NRND (Not Recommended for New Designs) status. Mouser and DigiKey occasionally list the part in stock; third-party suppliers such as UTSOURCE and Jotrin often maintain buffer inventory. Contact distributors in real time for confirmed stock before placing production orders.

PIC16LC77-04/P vs PIC16C77-04/P - which is better for new designs?

The PIC16LC77-04/P and PIC16C77-04/P differ mainly in process technology. The PIC16LC77-04/P uses low-power CMOS ("L" suffix), offering lower power consumption across the 2.5V to 6V supply range, while the PIC16C77-04/P uses the original NMOS/CMOS process and may draw more current. For new designs prioritizing low power, the PIC16LC77-04/P is the preferred choice within the OTP memory constraint.

PIC16LC77-04/P vs PIC16F77 - which should I use for new designs?

For new designs the PIC16F77 is strongly preferred over the PIC16LC77-04/P. The PIC16F77 is flash-based and supports in-circuit reprogramming, while the PIC16LC77-04/P uses OTP memory that can only be programmed once. Both share the same 40-PDIP pinout, 14KB program space, 368 RAM, and 8-bit ADC, making the PIC16F77 a functionally superior drop-in upgrade for development and production runs.

When should I choose PIC16LC77-04/P over PIC16F877A?

Choose the PIC16LC77-04/P only when system cost per unit is the dominant constraint and firmware is fully validated, because the OTP memory cannot be erased or re-flashed. For development, field updates, or low-volume production the PIC16F877A is the better choice. The PIC16LC77-04/P is best suited to high-volume mature products where the program is locked and tooling has been amortized.

What is the best drop-in replacement for PIC16LC77-04/P?

The best drop-in replacement for PIC16LC77-04/P is the PIC16F77, which shares the 40-PDIP pinout, 14KB program memory, 368 bytes RAM, 33 I/O, and 8-bit ADC but uses flash memory for in-circuit reprogramming. For an exact-OTP replacement from Microchip's same family the PIC16LC77-04I/P (industrial temperature range) is a drop-in alternative with identical electrical parameters.

Can PIC16F77 replace PIC16LC77-04/P directly?

Yes, the PIC16F77 can directly replace the PIC16LC77-04/P on the same 40-PDIP footprint. Both parts share identical pinout, 14KB program memory, 368 bytes RAM, 33 I/O pins, 8-bit ADC, and 20 MHz maximum clock speed. The PIC16F77 adds flash memory, allowing firmware updates, while the PIC16LC77-04/P only supports OTP programming. Existing firmware typically ports with no changes.

Where to download PIC16LC77-04/P datasheet PDF?

The PIC16LC77-04/P datasheet PDF can be downloaded from Microchip's official website or distributor product pages. As of 2026-09-22, search for the PIC16LC77 family datasheet at microchip.com, or access it through the DigiKey product detail page (digikey.com/en/products/detail/microchip-technology/PIC16LC77-04-P/261818) which links to the manufacturer documentation.

Where to find PIC16LC77-04/P pinout?

The PIC16LC77-04/P pinout is documented in the official Microchip datasheet and follows the standard 40-pin PDIP arrangement for the PIC16C7x family. Pin 1 is marked on the package top with a notch/dot. Detailed pin descriptions including port assignments (RA0-RA5, RB0-RB7, RC0-RC7, RD0-RD7, RE0-RE2), VDD, VSS, MCLR, OSC1/OSC2, and ADC reference pins are available on the datasheetq.com preview page linked from web search results.

What are the key specifications of PIC16LC77-04/P that engineers should know?

Key specifications of PIC16LC77-04/P include: 8-bit PIC16 core with 14-bit instruction set, 14KB OTP program memory, 368 bytes RAM, 33 digital I/O, 8-bit on-chip ADC, 4 MHz maximum clock, 2.5V to 6V supply, 0C to +70C commercial temperature range, 40-pin PDIP through-hole package, and CMOS low-power process. These parameters define the part's fit for industrial control, appliance, and embedded PIC16 legacy designs.

Engineering reference data for PIC16LC77-04/P — comparison, design guidance, and compliance information.

Selection Guide

Choose the PIC16LC77-04/P when you need a low-cost 8-bit OTP microcontroller for high-volume production where firmware is fully validated and per-unit cost dominates. The 14KB OTP memory, 368 bytes RAM, 33 I/O, and 8-bit ADC provide enough capability for typical industrial control, appliance, and legacy embedded designs. For new designs, prefer the flash-based PIC16F77-I/P which offers identical pinout and peripherals with much greater flexibility. Use the PIC16LC77-04I/P industrial-temperature variant when the application must operate from -40C to +85C. Use the PIC16C77-04/P only when reproducing legacy boards that require the original NMOS/CMOS process. Avoid the PIC16F74-I/P unless the 28-I/O count and reduced 4KB flash are acceptable.

Comparison with Alternatives

Parameter	This Product	PIC16F77-I/P	PIC16LC77-04I/P	PIC16LC77-04/L	PIC16C77-04/P	PIC16F74-I/P
Brand	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Package	40-PDIP	40-PDIP - same	40-PDIP - same	40-PDIP - same	40-PDIP - same	40-PDIP - same
Program Memory	14 KB OTP	14 KB Flash	14 KB OTP	14 KB OTP	14 KB OTP	4 KB Flash
Maximum Clock Frequency	4 MHz	20 MHz	4 MHz	4 MHz	4 MHz	20 MHz
Data RAM	368 B	368 B	368 B	368 B	368 B	192 B
Number of I/Os	33	33	33	33	33	28
ADC Resolution	8 bit	8 bit	8 bit	8 bit	8 bit	8 bit
Operating Temperature	0 C to +70 C	-40 C to +85 C	-40 C to +85 C	0 C to +70 C	0 C to +70 C	-40 C to +85 C
Operating Voltage	2.5 V to 6 V	2.0 V to 5.5 V	2.5 V to 6 V	2.5 V to 6 V	4.5 V to 6 V	2.0 V to 5.5 V

Key Differentiators

Lower-power CMOS process versus original PIC16C77 (vs PIC16C77-04/P)
Field-reprogrammable alternative available in same footprint (vs PIC16F77-I/P)
Industrial temperature variant in same package (vs PIC16LC77-04I/P)

Design Notes

OTP memory cannot be erased or re-flashed once programmed. Develop and debug firmware on a flash-based pin-compatible MCU such as the PIC16F77-I/P (40-PDIP drop-in) before committing to a PIC16LC77-04/P production run. A single bit error in OTP programming renders the device unusable, so validate the entire firmware image on flash parts first and only program OTP devices in production with verified HEX files.

Power supply decoupling on the PIC16LC77-04/P should include a 100 nF ceramic capacitor placed as close as possible to each VDD/VSS pin pair (pins 11/31 and 12/32). For noisy industrial environments add a 10 uF tantalum or aluminum bulk capacitor at the supply entry point. The PIC16LC77-04/P's CMOS core draws low current, but the ADC reference pin (RA3/VREF) is sensitive to supply noise and benefits from its own 100 nF bypass capacitor directly at the pin.

The 40-PDIP through-hole package allows generous PCB routing around the device, but the analog inputs (RA0-RA5) should still be routed away from digital switching traces to preserve ADC accuracy. Place the crystal or resonator close to OSC1/OSC2 (pins 13/14) with short, symmetric traces and a ground guard ring to reduce EMI susceptibility. The MCLR/VPP pin (pin 1) requires a 10 kohm pull-up to VDD; do not leave it floating.

Compliance Information

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Qualified

Lead Free

Unknown

Halogen Free

Unknown

Conflict Minerals

Unknown

Legacy 8-bit PIC MCU released prior to widespread RoHS/REACH compliance reporting; specific declarations should be requested from Microchip. Not AEC-Q100 qualified - automotive designs should select PIC16F77-I/P or PIC16F877A-I/P equivalents.

Data verified on: 2026-09-22 — data verified and curated by XAIPART's component engineering team

Sources: Distributor, Octopart, Distributor, Distributor, Manufacturer Datasheet, Distributor

Related Components & Terms

Microchip Technology PIC16LC77-04/P PIC16F77-I/P PIC16LC77-04I/P PIC16C77-04/P PIC16F74-I/P 8-bit microcontroller PIC16 family PIC mid-range architecture RISC MCU OTP program memory Flash memory PDIP-40 through-hole package 8-bit ADC RS-232 USART I2C SPI MIPS industrial control appliance controller automotive body electronics AEC-Q100 RoHS REACH