PIC16C554-04/SS - 8-bit OTP MCU 896B EPROM 20SSOP | Microchip
Référence : PIC16C554-04/SS ⚠ Dernier achat| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.15 | $2,15 |
| 10 | $1.95 | $19,50 |
| 100 | $1.78 | $178,00 |
| 500 | $1.65 | $825,00 |
| 1 000 | $1.55 | $1 550,00 |
PIC16C554-04/SS Présentation
An 8-bit microcontroller is a single-chip computer that integrates a CPU, RAM, program memory, and I/O peripherals onto one silicon die. Within the semiconductor taxonomy, the PIC16C554 sits in the microcontroller (MCU) family, which itself belongs to integrated circuits (ICs), embedded controllers, and ultimately the broader semiconductor category. Microcontrollers are the workhorses of discrete digital control, replacing discrete logic and relays when firmware flexibility matters more than raw throughput.
Key features include 12 I/O pins with individual direction control, an 8-bit timer/counter (TMR0), a watchdog timer with on-chip RC oscillator for reliable recovery, power-on reset, brown-out detection, code protection, and an external interrupt pin. The Harvard RISC architecture separates program and data buses, and the 12-bit wide instruction word keeps the decoder logic compact.
Typical applications include appliance control, automotive body electronics, industrial sensor interfaces, low-cost consumer products, and battery-powered instrumentation where the OTP (one-time-programmable) program memory and small footprint minimize bill-of-materials cost. The 20-pin SSOP footprint is also friendly to hand-soldered prototypes and densely packed PCBs.
Designers should evaluate whether OTP memory is appropriate for the production volume (OTP is cheaper than flash for very high runs but cannot be reprogrammed), plan for in-circuit programming via the ICSP interface, and confirm that 896 bytes of program memory and 80 bytes of RAM are sufficient for the application. The SSOP package's fine 0.65 mm pitch demands careful PCB land pattern design and reflow profile control.
Alternatives de remplacement direct pour PIC16C554-04/SS — 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 PIC16C554-04/SS (même facteur de forme et même empreinte) — différant par Package, Program Memory Type, Program Memory Size, Timers, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16C554-04I/SS
✅ Remplacement direct✓ En stock
$1.45 / unité
Voir la fiche technique →PIC16C554-04E/SS
✅ Remplacement direct✓ En stock
$2.35 / unité
Voir la fiche technique →PIC16C554T-04E/SS
✅ Remplacement direct✓ En stock
$2.85 / unité
Voir la fiche technique →PIC16F54-I/SS
✅ Remplacement direct✓ En stock
$0.68 / unité
Voir la fiche technique →PIC16C54C-04/SS
✅ Remplacement direct✓ En stock
$0.65 / unité
Voir la fiche technique →PIC16C54C-04I/SS
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$1.34 / unité
Voir la fiche technique →PIC16C554-04/SS Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC16C5x 8-bit RISC (Harvard) |
| Instruction Set Size | 35 single-word instructions (12-bit wide) |
| Instruction Execution Time | 200 ns at 4 MHz oscillator |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 896 bytes |
| Data RAM | 80 bytes |
| I/O Pins | 13 |
| Timers | 1 x 8-bit (TMR0) |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Oscillator Frequency (max) | 4 MHz |
| Plage de température de fonctionnement | 0 C to +70 C (commercial grade) |
| Boîtier | 20-pin SSOP (5.30 mm body, 0.65 mm pitch) |
| Type de montage | Surface Mount |
| Niveau MSL | 1 (unlimited floor life) |
| ICSP / In-Circuit Programming | Yes |
| Code Protection | Yes |
| Brown-Out Reset | Yes |
Configuration des broches de PIC16C554-04/SS
| Broche 1 | RA2 — Bidirectional I/O pin, Port A bit 2 |
| Broche 2 | RA3 — Bidirectional I/O pin, Port A bit 3 |
| Broche 3 | RA4/T0CKI — Bidirectional I/O pin, alternate TMR0 clock input |
| Broche 4 | MCLR — Master Clear reset input (active low) |
| Broche 5 | VSS — Ground reference |
| Broche 6 | RB0/INT — Bidirectional I/O pin, alternate external interrupt input |
| Broche 7 | RB1 — Bidirectional I/O pin, Port B bit 1 |
| Broche 8 | RB2 — Bidirectional I/O pin, Port B bit 2 |
| Broche 9 | RB3 — Bidirectional I/O pin, Port B bit 3 |
| Broche 10 | RB4 — Bidirectional I/O pin, Port B bit 4 (interrupt-on-change) |
| Broche 11 | RB5 — Bidirectional I/O pin, Port B bit 5 (interrupt-on-change) |
| Broche 12 | RB6 — Bidirectional I/O pin, Port B bit 6 (interrupt-on-change) |
| Broche 13 | RB7 — Bidirectional I/O pin, Port B bit 7 (interrupt-on-change) |
| Broche 14 | VSS — Ground reference (substrate) |
| Broche 15 | OSC2/CLKOUT — Oscillator output or clock output |
| Broche 16 | OSC1/CLKIN — Oscillator input or external clock input |
| Broche 17 | RA0 — Bidirectional I/O pin, Port A bit 0 |
| Broche 18 | RA1 — Bidirectional I/O pin, Port A bit 1 |
| Broche 19 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
| Broche 20 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
Applications typiques
PIC16C554-04/SS convient pour 6 applications: Appliance Control, Automotive Body Electronics, Industrial Sensor Interface, Low-Cost Consumer Electronics, Battery-Powered Instrumentation, LED Display and Lighting Controllers.
Appliance Control
The PIC16C554-04/SS is well suited for white-goods and small-appliance control boards such as coffee makers, toasters, and countertop ovens, where its 13 GPIO pins can drive relay coils, triac gates, and seven-segment LED indicators while the 8-bit TMR0 handles timing and debouncing. Its 200 ns instruction cycle is fast enough to multiplex LED displays and execute simple PWM routines for fan or heater modulation. The 896-byte OTP EPROM is sufficient for typical appliance state machines - power-on cycle, temperature ramp, timer countdown - and keeps per-unit cost low for high-volume production. Brown-out reset and watchdog timer ensure the MCU recovers gracefully from supply glitches and ESD events common on mains-coupled appliance boards.
Recommandé
Automotive Body Electronics
The PIC16C554-04/SS powers cost-sensitive automotive body modules such as interior lighting controllers, seat-position switches, and HVAC damper drivers where the 13 GPIO pins can read multiplexed switch matrices and drive FET arrays or stepper motors. Its 3.0 V to 5.5 V operating range survives automotive load-dump transients when paired with appropriate TVS protection, and the hardware INT-on-change interrupt on Port B simplifies switch-matrix decoding. The extended-temperature PIC16C554-04E/SS variant handles under-dash ambient conditions of -40 C to +125 C. The 8-bit PIC16C5x core has decades of proven field reliability in two- and three-wheeler automotive ECUs.
Recommandé
Industrial Sensor Interface
In industrial sensor transmitters and process-control peripherals, the PIC16C554-04/SS acts as a low-cost front-end that reads analog signals via an external ADC, performs linearization and scaling in firmware, and drives a 4-20 mA current loop or RS-485 transceiver. Its 200 ns instruction execution handles 10 Hz update rates comfortably with ample headroom for digital filtering, while the 80-byte RAM accommodates 16-bit scaled values and a small lookup table. The watchdog timer protects remote sensor installations from firmware lockup, and code protection prevents IP theft of calibration algorithms. For galvanically isolated nodes, the PIC16C554-04I/SS industrial variant operates from -40 C to +85 C.
Recommandé
Low-Cost Consumer Electronics
For high-volume consumer products such as remote-control toys, novelty gadgets, and small battery-powered devices, the PIC16C554-04/SS offers the minimum viable compute: enough GPIO for LED animation and button input, enough program memory for sound-effect playback tables, and a low-power CMOS core that draws only a few milliamps during active operation. The OTP EPROM keeps the unit cost well below flash-based equivalents when shipping millions of units per year, and the SSOP-20 footprint keeps the PCB under 10 mm x 15 mm. Brown-out reset prevents corruption when batteries reach end-of-life voltage.
Recommandé
Battery-Powered Instrumentation
The PIC16C554-04/SS supports battery-powered instrumentation such as handheld thermometers, moisture meters, and simple data loggers where the CMOS core draws microamp-level idle current when the oscillator is stopped. Its 3.0 V minimum supply lets it run from two alkaline AA cells down to near end-of-life, and the brown-out reset prevents erroneous readings as voltage decays. The 8-bit TMR0 can be used as a low-power real-time tick source with the watchdog postscaler, and the 13 GPIO pins interface to LCD segment drivers or EEPROM storage. Choose the PIC16C554-04I/SS industrial variant for outdoor or refrigerated deployments.
Recommandé
LED Display and Lighting Controllers
The PIC16C554-04/SS drives LED matrix panels, decorative lighting strings, and seven-segment or dot-matrix displays by multiplexing rows and columns using TMR0 interrupts while the main loop refreshes display RAM. Its 200 ns instruction cycle sustains multiplex rates well above 100 Hz, eliminating visible flicker, and the 13 GPIO pins can be time-multiplexed to control 8x8 or larger matrices via external driver shift registers. The wide 3.0-5.5 V supply range lets it run directly from USB-powered 5 V rails or from 3.3 V regulated supplies. The PIC16C554-04E/SS extended variant supports outdoor lighting installations in -40 C to +125 C conditions.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16C554-04/SS — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16C554-04I/SS | PIC16C554-04E/SS | PIC16C554T-04E/SS | PIC16F54-I/SS | PIC16C54C-04/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SSOP | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same | 20-pin SSOP - same |
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (reprogrammable) | OTP EPROM |
| Program Memory Size | 896 bytes | 896 bytes | 896 bytes | 896 bytes | 512 words (flash) | 512 words |
| RAM Size | 80 bytes | 80 bytes | 80 bytes | 80 bytes | 25 bytes | 25 bytes |
| Max Oscillator Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz |
| Operating Temperature | 0 C to +70 C | -40 C to +85 C (industrial) | -40 C to +125 C (extended) | -40 C to +125 C (extended) | -40 C to +85 C (industrial) | 0 C to +70 C |
| Instruction Execution | 200 ns at 4 MHz | 200 ns at 4 MHz | 200 ns at 4 MHz | 200 ns at 4 MHz | 200 ns at 20 MHz | 200 ns at 4 MHz |
Principaux différenciateurs
- Industrial temperature grade option in same SSOP-20 footprint (vs PIC16C554-04I/SS)
- Flash reprogrammability vs OTP one-time programmability (vs PIC16F54-I/SS)
- Same-family smaller-memory alternative for cost reduction (vs PIC16C54C-04/SS)
Notes de conception
The PIC16C554-04/SS uses one-time-programmable (OTP) EPROM and cannot be erased after programming - a single failed code lock bit or misconfigured oscillator setting bricks the device. Always prototype with the flash-based PIC16F54-I/SS first to verify firmware, then port the final hex file to PIC16C554-04/SS OTP units for production. This avoids burning hundreds of OTP parts during development.
The 20-pin SSOP has a fine 0.65 mm pin pitch and a 5.30 mm body width; follow the IPC-7351 SSOP-20 land pattern with 0.40 mm pad width and 0.85 mm pad length. Place a 0.1 uF decoupling capacitor within 5 mm of each VDD pin (pins 19 and 20 share VDD), and add a 10 uF bulk capacitor near the IC. For oscillator stability, keep the crystal or resonator traces short and shield them from digital switching lines to minimize jitter.
MCLR (pin 4) must be pulled high to VDD through a 10 kohm resistor for normal operation. For in-circuit serial programming (ICSP), route the VPP, ICSPCLK, and ICSPDAT signals to a programming header with no series components in line. Because the PIC16C5x core has no on-chip debug, use an ICSP header on every prototype board so firmware can be loaded without removing the OTP device - pair this with a flash-based PIC16F54-I/SS for development and switch to PIC16C554-04/SS for production runs.
Informations de conformité
RoHS, REACH, lead-free, and halogen-free status not explicitly stated in the provided Verified Web Data; [DATA_NEEDED] markers retained in specs array. The PIC16C554 family is described as suitable for automotive applications per Microchip's product page, but AEC-Q100 qualification status for this specific "/SS" commercial variant is not confirmed - choose the "/E" extended-temperature variant for AEC-Q100 work.