PIC16LC54AT-04E/SS - 4MHz 768B OTP 8-bit MCU | Microchip
Teilenummer: PIC16LC54AT-04E/SS ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.95 | $2,95 |
| 10 | $2.66 | $26,60 |
| 100 | $2.37 | $237,00 |
| 500 | $2.13 | $1.065,00 |
| 1.000 | $1.9 | $1.900,00 |
PIC16LC54AT-04E/SS Übersicht
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, data RAM, and I/O peripherals on one silicon die. PIC® 16C-series MCUs use a Harvard architecture with 12-bit-wide instructions and an 8-bit-wide data path, providing 2:1 code compression versus many competing 8-bit cores in the same class. The 'LC' suffix denotes a low-power CMOS variant, while the 'A' in 16LC54A marks the second-generation silicon revision that simplifies the oscillator block and reduces current draw. This places the part in the broader taxonomy: microcontroller -> embedded processor -> semiconductor IC.
Key specifications of the PIC16LC54AT-04E/SS include: 768 bytes OTP (512 x 12) program memory, 25 bytes data RAM, 12 I/O pins, a 2-level hardware stack, Power-On Reset (POR), Watchdog Timer (WDT), and a supply voltage range of 3.0 V to 6.25 V. The 20-SSOP surface-mount package measures approximately 5.30 mm body width and supports tape-and-reel shipping. The '04' speed grade caps the oscillator at 4 MHz, while the 'E' code indicates the extended industrial temperature range.
Architecturally, the PIC16C5X core executes one instruction per instruction cycle (four clock periods), achieving 1 MIPS at 4 MHz. Peripherals include an 8-bit Timer0 (TMR0) with an 8-bit prescaler, direct/indirect/relative addressing modes, and seven or eight special-function hardware registers. The PIC16C5X instruction set is symmetric across the 12-bit opcode space, simplifying assembler programming and reducing development time.
Typical applications include low-cost embedded control in industrial sensors, appliance controls, automotive body modules (non-safety), consumer remote controls, simple battery-powered devices, and legacy replacement designs that maintain 16C5X code bases. The wide 3.0-6.25 V supply range and 4 MHz operation suit both 5 V regulated rails and unregulated battery chemistries.
Design considerations: ensure Vdd decoupling with 100 nF ceramic placed within 5 mm of the supply pin, observe MCLR rise-time requirements for reliable Power-On Reset, and reserve one I/O pin for in-circuit serial programming (ICSP) if firmware updates are anticipated.
This page synthesizes distributor pricing, same-family drop-in alternatives, SSOP-20 pin compatibility notes, and practical design guidance not found in the standalone datasheet, helping procurement and embedded engineers quickly evaluate the part.
Drop-in-Alternativen für PIC16LC54AT-04E/SS – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16LC54AT-04E/SS (gleiche Bauform und Footprint) – abweichend in Package, Program Memory Size, Program Memory Type, Core Architecture, Family.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16LC54AT-04/SS
✅ Drop-In✓ Auf Lager
$0.86 / Stück
Datenblatt ansehen →PIC16LC54A-04E/SS
✅ Drop-In✓ Auf Lager
$2.84 / Stück
Datenblatt ansehen →PIC16LC54A-04/SS
✅ Drop-In✓ Auf Lager
$3.85 / Stück
Datenblatt ansehen →PIC16F54-I/SS
✅ Drop-In✓ Auf Lager
$0.68 / Stück
Datenblatt ansehen →PIC16LC54AT-04E/SS Grenzwerte & elektrische Eigenschaften
| Core | PIC 16C (PIC16C5X family) |
| Bit Width | 8-bit data path / 12-bit instruction |
| Maximum Clock Speed | 4 MHz |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 768 bytes (512 x 12) |
| Data RAM | 25 bytes |
| I/O Pins | 12 |
| Supply Voltage Range | 3.0 V to 6.25 V |
| Betriebstemperaturbereich | -40C to +125C (industrial, E suffix) |
| Gehäuse | 20-SSOP (0.209 inch / 5.30 mm body width) |
| Montageart | Surface Mount |
| Stack Depth | 2 levels (hardware) |
| Timers | 8-bit TMR0 with 8-bit prescaler |
| Peripherals | Power-On Reset (POR), Watchdog Timer (WDT) |
| Addressing Modes | Direct, Indirect, Relative |
| ROM Type (per family datasheet) | OTP/EPROM-based (UVPROM family) |
| RoHS-Status | Compliant (per DigiKey listing) |
PIC16LC54AT-04E/SS Pin-Konfiguration
| Pin 1 | RA2 — Bidirectional I/O port A bit 2 |
| Pin 2 | RA3 — Bidirectional I/O port A bit 3 |
| Pin 3 | RTCC — TMR0 real-time clock/counter input |
| Pin 4 | MCLR — Master Clear (reset) input, active low |
| Pin 5 | Vss — Ground reference |
| Pin 6 | RB0 — Bidirectional I/O port B bit 0 / ICSP data |
| Pin 7 | RB1 — Bidirectional I/O port B bit 1 |
| Pin 8 | RB2 — Bidirectional I/O port B bit 2 |
| Pin 9 | RB3 — Bidirectional I/O port B bit 3 |
| Pin 10 | RB4 — Bidirectional I/O port B bit 4 |
| Pin 11 | RB5 — Bidirectional I/O port B bit 5 / ICSP clock |
| Pin 12 | RB6 — Bidirectional I/O port B bit 6 |
| Pin 13 | RB7 — Bidirectional I/O port B bit 7 |
| Pin 14 | Vdd — Positive supply voltage (3.0 V to 6.25 V) |
| Pin 15 | OSC2 — Oscillator output / crystal connection |
| Pin 16 | OSC1 — Oscillator input / crystal connection |
| Pin 17 | RA0 — Bidirectional I/O port A bit 0 |
| Pin 18 | RA1 — Bidirectional I/O port A bit 1 |
| Pin 19 | RA4 — Bidirectional I/O port A bit 4 |
| Pin 20 | RA5 — Bidirectional I/O port A bit 5 |
Typische Anwendungen
PIC16LC54AT-04E/SS ist geeignet für 6 Anwendungs: Industrial Sensor Conditioning, Battery-Powered Remote Control, White Goods and Appliance Control, Automotive Body Module (non-safety), LED Lighting and Signage Drivers, Legacy Replacement and Code Preservation.
Industrial Sensor Conditioning
The PIC16LC54AT-04E/SS fits low-cost industrial sensor conditioning loops where 1 MIPS of compute is sufficient to debounce switch inputs, sample thermistor bridges, and drive indicator LEDs. The 3.0-6.25 V supply range accepts unregulated 5 V or 4-cell AA battery packs common in plant-floor instrumentation. Industrial-grade -40C to +125C operation supports outdoor enclosures and unheated cabinets. The 12 I/O pins allow direct connection of 4-6 sensors plus status LEDs without external muxing. Compared with a 16-bit ADC-front-end solution, the PIC16LC54AT-04E/SS cuts BOM cost and firmware complexity for simple threshold-detection loops.
Empfohlen
Battery-Powered Remote Control
The PIC16LC54AT-04E/SS suits handheld remote controls and battery-powered user-interface devices where the 'LC' low-power CMOS core extends battery life. At 4 MHz the device draws only a few hundred microamps active, and the Watchdog Timer plus Power-On Reset let it wake from sleep on switch events. The 768-byte OTP program memory holds small state-machine firmware for IR encoding, key scanning, and LED feedback. The 20-SSOP package occupies less than 30 square mm, leaving room for AAA cells and an IR LED driver.
Empfohlen
White Goods and Appliance Control
The PIC16LC54AT-04E/SS targets cost-engineered appliance control boards such as dishwasher user interfaces, washing-machine panel controllers, microwave keypads, and refrigerator temperature displays. The 4 MHz PIC16C5X core delivers deterministic timing for relay sequencing, buzzer tones, and seven-segment multiplexing. Industrial temperature grade handles under-cabinet heat, and the Watchdog Timer recovers the MCU from brown-out events caused by compressor inrush. The 25-byte RAM is adequate for keypad debounce and a small state machine; OTP enforces fixed feature sets that prevent firmware tampering in field returns.
Empfohlen
Automotive Body Module (non-safety)
The PIC16LC54AT-04E/SS handles non-safety automotive body functions such as interior lighting timers, courtesy lamp fade controllers, accessory delay relays, and basic switch-multiplexing nodes. The -40C to +125C industrial temperature rating tolerates cabin and under-hood-adjacent locations, and the 3.0-6.25 V supply range aligns with 12 V battery rails after regulator drop. For safety-critical applications such as airbag or brake modules, choose an AEC-Q100-qualified MCU such as the PIC16F15344-I/SS instead. The PIC16LC54AT-04E/SS suits cost-sensitive body controllers where OTP prevents unauthorized firmware reflashing.
Empfohlen
LED Lighting and Signage Drivers
The PIC16LC54AT-04E/SS drives small LED matrices, channel-letter signage controllers, and decorative lighting sequencers. The 12 I/O pins multiplex 7-segment displays or Charlieplex LED arrays without external logic, and the 4 MHz core generates accurate PWM fade rates for chasing and breathing effects. OTP memory locks the lighting pattern to prevent field tampering, while industrial temperature supports outdoor sign cabinets. Compared with discrete logic, a single PIC16LC54AT-04E/SS replaces a 555 timer plus counters plus glue logic, simplifying the BOM.
Empfohlen
Legacy Replacement and Code Preservation
The PIC16LC54AT-04E/SS supports maintenance of legacy products whose firmware was originally written for PIC16C5X-series devices. Engineers servicing older industrial controllers, medical instruments, or test equipment can keep existing 12-bit opcode code bases running without rewriting for Flash-based successors. OTP enforces firmware stability for regulated industries where re-programmability is undesirable. The 20-SSOP footprint matches the original PCB land pattern, eliminating board rework when refreshing inventory. Modern replacements such as the PIC16F54-I/SS require code migration but offer Flash reprogramming for new design variants.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LC54AT-04E/SS – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LC54AT-04/SS | PIC16LC54A-04E/SS | PIC16LC54A-04/SS | PIC16F54-I/SS |
|---|---|---|---|---|---|
| Brand | 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) |
| Program Memory Type | OTP (768 bytes) | OTP (768 bytes) | OTP (768 bytes) | OTP (768 bytes) | Flash (512 words) |
| Maximum Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Supply Voltage Range | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 3.0 V to 6.25 V | 2.0 V to 5.5 V |
| Operating Temperature | -40C to +125C (industrial) | 0C to +70C (commercial) | -40C to +125C (industrial) | 0C to +70C (commercial) | -40C to +85C (industrial) |
| Re-programmability | One-Time Programmable | One-Time Programmable | One-Time Programmable | One-Time Programmable | Flash (1,000 erase/write cycles) |
| Shipping Format | Tape & Reel | Tape & Reel | Tube | Tube | Tape & Reel |
| Instruction Set | PIC16C5X 12-bit | PIC16C5X 12-bit | PIC16C5X 12-bit | PIC16C5X 12-bit | Enhanced PIC16 14-bit (migration required) |
Wichtigste Unterscheidungsmerkmale
- Industrial temperature range with tape-and-reel shipping (vs. PIC16LC54A-04E/SS)
- PIC16C5X legacy code compatibility with modern stock (vs. PIC16F54-I/SS)
- LC low-power CMOS variant for battery operation (vs. PIC16C54A standard CMOS)
Designhinweise
Place a 100 nF ceramic decoupling capacitor within 5 mm of the Vdd pin (pin 14) and a bulk 10 uF electrolytic on the same supply rail to suppress voltage transients during high-current I/O switching. The PIC16LC54AT-04E/SS draws less than 2 mA active at 4 MHz and 1 uA in sleep, so a small LDO such as MCP1700 or a 78L05 is sufficient. Tie MCLR (pin 4) to Vdd through a 10 kohm pull-up resistor and add a 100 nF capacitor to Vss for brown-out immunity, observing the MCLR rise-time requirements in the datasheet.
Remember that PIC16C5X OTP parts cannot be re-programmed once written. Build prototype code on a UV-erasable PIC16C54A or a Flash-based PIC16F54-I/SS first, then commit the final code image to the PIC16LC54AT-04E/SS for production. Reserve pins RB6 and RB7 (pins 12-13) for ICSP clock and data when designing the PCB so that factory programming does not require socket adapters. Avoid using MCLR as a general-purpose input - it is the only reset source and must remain available for programming and brown-out recovery.
The 20-SSOP package has a 0.65 mm lead pitch, requiring fine-pitch PCB fabrication. Use a copper pour under the SSOP body tied to Vss for thermal dissipation and as a guard trace, and route oscillator traces (OSC1, OSC2) short and guarded to avoid injecting clock harmonics into analog signals. Place the crystal or resonator within 5 mm of pins 15-16 and ground its case. Avoid running high-current outputs (relay drive, LED strings) directly under the SSOP to prevent ground-bounce coupling into the MCLR or RTCC inputs.
RTCC (pin 3) is the TMR0 clock input; route it with a short trace and add a 100 ohm series resistor if the source is from an external oscillator above 1 MHz to damp reflections. The PIC16C5X core samples I/O pins once per instruction cycle, so any signal faster than 1 MHz must be preconditioned in hardware. Watchdog Timer overflow can be used as a safety interval; configure it before enabling the WDT and clear it only in the main loop to guarantee a reset on firmware hang.
Compliance-Informationen
RoHS and lead-free compliance confirmed by DigiKey product listing for distributor SKU 321258. AEC-Q100 qualification is NOT held - for safety-critical automotive designs, choose AEC-Q100-qualified parts such as the PIC16F15344-I/SS family. REACH and conflict-mineral declarations are available from Microchip Technology upon request.
