PIC16C73A-10/SP - 8-Bit 10MHz 7KB OTP MCU 28-SPDIP | Microchip
Référence : PIC16C73A-10/SP ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $9.8 | $9,80 |
| 10 | $9.05 | $90,50 |
| 100 | $8.1 | $810,00 |
| 500 | $7.2 | $3 600,00 |
| 1 000 | $6.4 | $6 400,00 |
PIC16C73A-10/SP Présentation
An 8-bit microcontroller is a single-chip computer built around an 8-bit data bus and a Harvard architecture. Within the broader semiconductor taxonomy it sits under microcontroller -> MCU -> embedded processor -> semiconductor device. The PIC16CXX mid-range family from Microchip is one of the longest-lived 8-bit architectures in the industry and is widely used in industrial control, automotive body electronics, and consumer appliances where deterministic instruction timing and low cost outweigh raw compute throughput.
Key features of the PIC16C73A-10/SP include 35 single-word instructions, all single-cycle except program branches (two cycles), 5 MIPS sustained throughput at 20 MHz, supply voltage range of 4.0 V to 5.5 V, and low-power consumption with typical 15 µA active current at 5 V/4 MHz and 1 µA standby at 3 V/32 kHz. The device supports high sink/source current of 25 mA per pin and operates across commercial, industrial, and extended temperature ranges. Interrupt handling, watchdog timer, and power-on reset are all integrated.
The PIC16C73A employs a RISC architecture with a two-stage pipeline and a 14-bit wide instruction word. The 8-bit ALU operates on data RAM, while the program store is accessed over a separate 14-bit bus, allowing instruction fetch and data access in the same cycle. This Harvard topology, combined with the 35-instruction RISC set, gives the part its deterministic 200 ns instruction cycle time at 20 MHz. The integrated ADC uses successive-approximation with analog input multiplexing across 5 channels.
Typical applications include industrial control and automation, HVAC and building controls, automotive body and chassis subsystems, low-end consumer appliances, sensor signal conditioning front-ends, and battery-powered instrumentation. The wide operating voltage range and industrial temperature grade make it well suited to factory floor deployments.
When designing with this device, note that the OTP memory cannot be re-programmed, so production firmware must be fully validated before wafer programming. The /MCLR reset pin requires a precise RC rise time, and the ICSP interface shares pins with PORTC, so isolation resistors may be needed in-circuit.
This page synthesizes current distributor pricing, drop-in alternatives drawn from the Microchip PIC16C7X family, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour PIC16C73A-10/SP — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16C73A-10/SP (même facteur de forme et même empreinte) — différant par Package, Timers, Program Memory Type, Mounting Type, Program Memory Size.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16C73B-10I/SP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16C73B-10/SP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16F73-I/SP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16C73A-10I/SP
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC16C73A-04/SP
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$4.65 / unité
Voir la fiche technique →PIC16C74A-10/SP
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC16C73A-10/SP Valeurs maximales et caractéristiques électriques
| Core Architecture | 8-bit PIC16 mid-range RISC |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 7 KB (4K x 14) |
| Data RAM | 192 bytes |
| Data EEPROM | Not present |
| Maximum Clock Speed | 20 MHz |
| Speed Grade | 10 MHz (-10 suffix) |
| Instruction Set | 35 single-word instructions |
| MIPS Performance | 5 MIPS @ 20 MHz |
| Tension d'alimentation | 4.0 V to 5.5 V |
| I/O Pins | 22 |
| ADC | 5 channels x 8-bit |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Communication | USART, SSP (SPI/I2C) |
| Boîtier | 28-pin SPDIP (Skinny Plastic DIP) |
| Type de montage | Through-Hole |
| Température de fonctionnement | 0C to +70C (commercial) |
| Active Current | 15 uA typical @ 5 V / 4 MHz |
| Standby Current | 1 uA typical @ 3 V / 32 kHz |
| Pin Sink/Source Current | 25 mA / 25 mA |
Configuration des broches de PIC16C73A-10/SP
| Broche 1 | /MCLR — Master Clear reset input, active low |
| Broche 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Broche 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Broche 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Broche 5 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Broche 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Broche 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Broche 8 | OSC1/CLKIN — Crystal oscillator input or external clock |
| Broche 9 | OSC2/CLKOUT — Crystal oscillator output or clock out |
| Broche 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Broche 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Broche 12 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Broche 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Broche 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Broche 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Broche 16 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Broche 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Broche 18 | VSS — Ground reference |
| Broche 19 | VDD — Positive supply 4.0 V to 5.5 V |
| Broche 20 | RB0/INT — PORTB bit 0 / external interrupt input |
| Broche 21 | RB1 — PORTB bit 1 |
| Broche 22 | RB2 — PORTB bit 2 |
| Broche 23 | RB3 — PORTB bit 3 |
| Broche 24 | RB4 — PORTB bit 4 |
| Broche 25 | RB5 — PORTB bit 5 |
| Broche 26 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Broche 27 | RB7/PGD — PORTB bit 7 / ICSP data |
| Broche 28 | VSS — Ground reference |
Applications typiques
PIC16C73A-10/SP convient pour 6 applications: Industrial Process Control, HVAC and Building Automation, Automotive Body and Chassis Subsystems, Low-End Consumer Appliance Controllers, Battery-Powered Sensor Front-Ends, Educational Microcontroller Training Platforms.
Industrial Process Control
The PIC16C73A-10/SP fits industrial process control panels because of its 22 I/O pins, integrated 5-channel 8-bit ADC for sensor front-ends, and 4.0-5.5 V supply tolerance that rides through industrial 24 V bus drops after pre-regulation. Its 10 MIPS sustained throughput handles PID loops at sub-millisecond update rates for temperature, pressure, and flow loops. The three timers simplify PWM actuator drive, and the USART interfaces to RS-485 transceivers for Modbus RTU slave communication on factory floors.
Recommandé
HVAC and Building Automation
The PIC16C73A-10/SP is well suited to HVAC damper and valve actuators where its 25 mA per-pin sink/source current drives optotriacs and small relays directly without buffer stages. The 5-channel ADC reads thermistor temperature sensors, humidity transducers, and pressure switches, while the USART links the controller to BACnet or Modbus building networks. Commercial temperature grade (0C to +70C) covers indoor mechanical rooms, and the 28-SPDIP through-hole package is preferred by HVAC OEMs for service-friendly field replacement.
Recommandé
Automotive Body and Chassis Subsystems
The PIC16C73A-10/SP powers automotive body controllers for seat position memory, mirror adjustment, lighting clusters, and accessory multiplex, where its 22 I/O directly drive small solenoids and LEDs at 25 mA. The 5-channel ADC reads potentiometers for trim position feedback. The 16C73B-10I/SP variant extends this to industrial-grade temperature for underhood mounting. The OTP memory model provides tamper resistance for OEM firmware protection, an advantage over Flash MCUs in security-sensitive automotive subsystems.
Recommandé
Low-End Consumer Appliance Controllers
The PIC16C73A-10/SP targets cost-sensitive consumer appliances such as microwave ovens, washing machines, and small kitchen devices where its 7 KB OTP holds motor control and user-interface state machines. The integrated USART supports diagnostics ports for factory test, and the three timers drive triac phase control for heater and motor PWM. Through-hole SPDIP packaging suits appliances that need to withstand hand-soldering rework in field-service scenarios, and the 35-instruction RISC set keeps firmware lean.
Recommandé
Battery-Powered Sensor Front-Ends
The PIC16C73A-10/SP operates in battery-powered sensor data loggers thanks to its 1 µA typical standby current at 3 V/32 kHz, allowing months of operation from a coin cell. Sleep-wake cycles are driven by watchdog timer interrupts, and the ADC samples thermistor or photodiode inputs on programmable schedules. Although the supply range (4.0-5.5 V) is narrower than competing low-power MCUs, a boost converter such as the MCP1640 provides the rail. The 28-SPDIP footprint eases hand-prototyping battery packs.
Recommandé
Educational Microcontroller Training Platforms
The PIC16C73A-10/SP remains a common teaching subject in university embedded systems courses because its 28-SPDIP package fits 0.1 inch breadboards and its PIC16 mid-range instruction set is straightforward to learn on the Microchip MPLAB IDE with the PICkit 3 programmer. The integrated peripherals (ADC, USART, SSP, timers) introduce students to mixed-signal design without requiring external components. OTP vs Flash trade-offs teach memory architecture concepts and code-security implications.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16C73A-10/SP — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16C73B-10I/SP | PIC16C73B-10/SP | PIC16F73-I/SP | PIC16C73A-10I/SP | PIC16C73A-04/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Program Memory Type | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB Flash | 7 KB OTP | 7 KB OTP |
| Maximum Clock Speed | 10 MHz (-10 grade) | 10 MHz (-10 grade) | 10 MHz (-10 grade) | 20 MHz | 10 MHz (-10 grade) | 4 MHz (-04 grade) |
| Data RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| ADC | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) | 0C to +70C (commercial) |
| Supply Voltage | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 2.0 V to 5.5 V (wider) | 4.0 V to 5.5 V | 4.0 V to 5.5 V |
| Lifecycle Status | NRND | NRND | NRND | Active (recommended) | NRND | NRND |
Principaux différenciateurs
- Direct in-family drop-in successor with errata fixes and same OTP model (vs PIC16C73B-10/SP)
- Flash-based successor for new designs (vs PIC16F73-I/SP)
- Industrial temperature grade on same 28-SPDIP package (vs PIC16C73A-10I/SP)
Notes de conception
The PIC16C73A-10/SP requires a regulated 5 V rail within the 4.0 V to 5.5 V supply range. Add a 100 nF ceramic decoupling capacitor directly across VDD (pin 11) and VSS (pin 12) with trace length under 5 mm to suppress switching transients. For board-level bulk filtering, a 10 µF tantalum or aluminum electrolytic capacitor within 25 mm of the VDD pin is recommended. Brown-out detection (BOD) and power-on reset (POR) are internal but require a clean VDD rise time below the BOR threshold.
Because the PIC16C73A-10/SP uses OTP EPROM (not Flash), production firmware must be fully validated and burned into the part only once. There is no in-circuit reprogramming path for production silicon. The /MCLR pin (pin 1) is active low and requires a 10 kOhm pull-up to VDD; an RC delay (typically 1 µF + 10 kOhm) ensures a clean power-on reset. ICSP pins RB6/PGC and RB7/PGD (pins 26-27) must be isolated from high-impedance loads during programming to avoid signal integrity failures.
Place the 28-SPDIP crystal or resonator as close as possible to OSC1 (pin 8) and OSC2 (pin 9), with short symmetrical traces and a ground guard ring for EMI suppression. For a 10 MHz crystal, load capacitors of 15-33 pF are typical. Keep high-current switching traces (PWM outputs from RC1/RC2/CCP1) separated from the analog AVSS/AVDD routing to avoid ADC noise coupling; route analog traces RA0-RA5 in a star topology back to the analog ground reference.
The PIC16C73A-10/SP in 28-SPDIP has a typical thermal resistance junction-to-ambient (theta_JA) around 70 C/W, sufficient for the 15 µA active current at 4 MHz. Estimated: at full 10 MHz clock with all 22 I/O driving 25 mA and VDD=5 V, the part dissipates well under 200 mW with negligible junction temperature rise. No heatsink is required in normal operation. Industrial variants (PIC16C73A-10I/SP) operating at -40C ambient show larger absolute temperature delta but stay well within the rated +85C maximum.
Informations de conformité
28-SPDIP part is through-hole and typically non-RoHS by package design; lead-free and RoHS-compliant variants are available in SOIC package (PIC16C73A-10/SO). Not AEC-Q100 qualified; use industrial temp grade variant for automotive body electronics. Per Microchip PIC16C73A product page, the part is NRD (Not Recommended for New Designs).
