PIC16F1829LIN-E/SS - MCU+LIN Transceiver 8-Bit 32MHz 14KB Flash | Microchip
MPN: PIC16F1829LIN-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.56 | $35.60 |
| 100 | $3.18 | $318.00 |
| 500 | $2.84 | $1,420.00 |
| 1,000 | $2.55 | $2,550.00 |
PIC16F1829LIN-E/SS Overview
A LIN (Local Interconnect Network) transceiver is a physical-layer interface IC that connects a microcontroller to a single-wire LIN bus used in automotive body-electronics networks. The combined MCU + Vreg + LIN architecture eliminates the need for a standalone transceiver and 5V/3.3V LDO, reducing BOM count and PCB area for slave-node ECUs such as window lifters, mirror switches, seat controllers, and rain-light sensors. This part belongs to the broader class of integrated LIN nodes within Microchip's PIC16F1xxx enhanced mid-range family.
Key features include a 32 MHz internal oscillator with 4xPLL, 14 KB self-programmable Flash, 1 KB RAM, 256 B EEPROM, an integrated LIN physical-layer transceiver compliant to LIN 1.3, 2.0, 2.1, and SAE J2602, an internal 5V LDO regulator with wide input tolerance suitable for 12V automotive battery rails, mTouch capacitive-touch peripherals, and XLP eXtreme Low Power technology for sleep currents below typical MCU-only devices.
The PIC16F1829LIN combines the proven PIC16F enhanced mid-range CPU with the MCP2021A LIN transceiver analog front-end. The internal regulator accepts the full automotive supply range and feeds both the MCU core and the LIN bus driver. On-chip peripherals include ADC, comparators, PWM, EUSART, mTouch, and ICSP debug, allowing a complete LIN slave ECU to be implemented without external components beyond the bus pull-up.
Typical applications include automotive body electronics LIN slave nodes (window, mirror, seat, lighting, wiper modules), HVAC control panels, in-cabin switch banks, sensor interfaces over LIN, and industrial single-wire networking. Designers should consider the PIC16F1829LIN for any 12V automotive node where PCB area, BOM count, and LIN conformance are primary constraints.
When designing with this device, allocate PCB area for the LIN bus pull-up resistor to VBAT (or internal slave termination per LIN spec), respect the SSOP thermal limits, and ensure the internal 5V LDO output current capability supports both MCU and bus loads. ESD protection on the LIN pin is integrated, but external TVS is recommended for harsh automotive environments.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet. Engineers should consult the official Microchip datasheet document (40001673B family) for full register-level details and LIN conformance test reports.
Drop-in alternatives for PIC16F1829LIN-E/SS — 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 PIC16F1829LIN-E/SS (same form factor and footprint) — differing in Package, ADC, Program Memory (Flash), Core Architecture, Internal Oscillator.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1829LIN-I/SS
✅ Drop-In✓ In Stock
$1.93 / Unit
View Datasheet →PIC16F1828T-I/SS
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC16F1829-I/SS
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16F1829LIN-E/SS Maximum Ratings & Electrical Characteristics
| Product Type | MCU + LIN Transceiver + LDO (Single Package) |
| Core | PIC16F enhanced mid-range 8-bit |
| Flash Program Memory | 14 KB (8K x 14 words) |
| RAM | 1 KB |
| EEPROM | 256 B |
| Maximum CPU Frequency | 32 MHz |
| LIN Specification Compliance | LIN 1.3, 2.0, 2.1, and SAE J2602 |
| Internal Regulator Output | 5 V LDO |
| Package | 20-pin SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +125C (E suffix) |
| ESD Protection (LIN pin) | Integrated (per datasheet) |
| RoHS Status | Compliant |
PIC16F1829LIN-E/SS Pin Configuration
| Pin 1 | RA5 — Digital I/O / mTouch channel |
| Pin 2 | RA4 — Digital I/O / mTouch channel |
| Pin 3 | RA3 — Digital I/O / mTouch channel |
| Pin 4 | RA2 — Digital I/O / mTouch channel |
| Pin 5 | RA1 — Digital I/O / ICSPCLK |
| Pin 6 | RA0 — Digital I/O / ICSPDAT |
| Pin 7 | VSS — Ground |
| Pin 8 | VDD — Internal 5V regulated supply output |
| Pin 9 | VBAT — Battery supply input to internal LDO |
| Pin 10 | LIN — LIN bus single-wire transceiver I/O |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | RC0 — Digital I/O |
| Pin 13 | RC1 — Digital I/O |
| Pin 14 | RC2 — Digital I/O |
| Pin 15 | RC3 — Digital I/O / mTouch channel |
| Pin 16 | RC4 — Digital I/O / mTouch channel |
| Pin 17 | RC5 — Digital I/O / mTouch channel |
| Pin 18 | RC6 — Digital I/O / mTouch channel |
| Pin 19 | RC7 — Digital I/O / mTouch channel |
| Pin 20 | NC — Not connected (per datasheet) |
Typical Applications
PIC16F1829LIN-E/SS is suitable for 6 applications: Automotive LIN Body Electronics Slave Nodes, In-Cabin Switch Banks and Control Panels, Automotive Lighting Modules (LIN-controlled), Sensor Modules over LIN Bus, Industrial Single-Wire Networking Nodes, Cost-Sensitive Replacement of Discrete MCU + LIN SBC Designs.
Automotive LIN Body Electronics Slave Nodes
The PIC16F1829LIN-E/SS is purpose-built for automotive LIN 1.3/2.0/2.1/SAE J2602 slave nodes such as window lifters, mirror switches, seat controllers, and wiper modules. Its integrated MCP2021A-class LIN transceiver provides the LIN physical layer including bus dominant/recessive driver, internal slave termination option, and the required slew-rate control to meet EMC conformance tests. Combined with the PIC16F1829 32 MHz / 14 KB Flash core and mTouch capacitive-touch sensing, a complete body-electronics ECU can be built with just this single 20-pin SSOP IC plus the LIN bus pull-up. Designers save BOM cost and PCB area versus a separate MCU + LIN SBC architecture, while the 5V internal LDO accepts the full automotive 12V battery range including load-dump transients filtered externally.
Recommended
In-Cabin Switch Banks and Control Panels
The PIC16F1829LIN-E/SS is well suited for in-cabin switch banks and HVAC control panels that communicate over a single-wire LIN bus to a central body controller. The integrated mTouch capacitive-touch peripherals allow direct connection of touch electrodes without external capacitance-to-digital converter ICs, while the LIN transceiver handles the physical layer back to the central gateway. The 14 KB Flash accommodates typical switch-bank firmware including debounce, LED PWM, backlight control, and LIN diagnostics. The 20-pin SSOP footprint enables compact PCB layouts inside tight switch-pack enclosures, and the -40C to +125C extended temperature range supports both cabin and under-hood deployments of the same firmware image.
Recommended
Automotive Lighting Modules (LIN-controlled)
The PIC16F1829LIN-E/SS drives LIN-controlled automotive lighting modules including interior ambient lighting, reading lamps, puddle lamps, and daytime running light slave controllers. The 14 KB Flash, 1 KB RAM, and 32 MHz core provide ample headroom for PWM dimming curves, color-mixing algorithms, and LIN diagnostics. The integrated LIN transceiver handles bus wake-up and sleep synchronization with the central body controller, while the internal 5V LDO powers the MCU and bus driver from the 12V battery rail. Multiple PWM channels allow direct MOSFET gate driving of LED strings without an external LED driver IC for cost-sensitive modules.
Recommended
Sensor Modules over LIN Bus
The PIC16F1829LIN-E/SS serves as a sensor-interface LIN node for automotive rain-light sensors, humidity sensors, and temperature modules. The integrated ADC and comparators connect directly to analog sensor outputs, while the LIN transceiver transports digitized sensor data back to the body controller. The mTouch channels can be repurposed as additional ADC-capable inputs for low-cost sensor expansion. With 1 KB RAM and 14 KB Flash, calibration tables, linearization curves, and LIN diagnostic handlers fit comfortably. The internal 5V LDO accepts sensor supply voltages from the 12V automotive rail, simplifying power-tree design in distributed sensor networks.
Recommended
Industrial Single-Wire Networking Nodes
The PIC16F1829LIN-E/SS is well-suited to industrial single-wire networking applications such as building automation sensor nodes, HVAC damper controllers, and access-control peripherals that benefit from LIN's low-cost physical layer. The integrated LIN transceiver provides 12V bus tolerance suitable for industrial 24V rails with external clamping, and the PIC16F core offers deterministic real-time response for control loops. The 32 MHz instruction rate, 14 KB Flash, and standard PIC16F peripherals (PWM, ADC, comparators, EUSART) simplify firmware reuse between LIN and non-LIN variants. The 20-pin SSOP enables compact DIN-rail module layouts while the extended temperature range supports outdoor enclosures.
Recommended
Cost-Sensitive Replacement of Discrete MCU + LIN SBC Designs
The PIC16F1829LIN-E/SS is ideal as a BOM-reduction upgrade for designs that previously paired a PIC16F MCU with an external MCP2021A LIN transceiver and a 5V LDO regulator. By integrating all three functions into a single 20-pin SSOP, designers reclaim PCB area, reduce solder joints, and improve reliability by eliminating inter-IC buses. The same PIC16F firmware codebase migrates with minimal change, since the integrated transceiver presents registers and APIs equivalent to the discrete MCP2021A. This makes the PIC16F1829LIN-E/SS a cost-down path for high-volume LIN nodes without re-architecting the application firmware.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1829LIN-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1829LIN-I/SS | PIC16F1828T-I/SS | PIC16F1829-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Core | PIC16F 8-bit enhanced mid-range | PIC16F 8-bit enhanced mid-range | PIC16F 8-bit enhanced mid-range | PIC16F 8-bit enhanced mid-range |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Flash | 14 KB | 14 KB | 14 KB | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB |
| Integrated LIN Transceiver | Yes (LIN 1.3/2.0/2.1/J2602) | Yes (LIN 1.3/2.0/2.1/J2602) | No | No |
| Internal 5V LDO | Yes | Yes | No | No |
| Temperature Range | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
Key Differentiators
- Integrated MCU + LIN transceiver + 5V LDO in a single 20-SSOP (vs PIC16F1829-I/SS)
- Extended -40C to +125C operating range (vs PIC16F1829LIN-I/SS)
- mTouch capacitive touch sensing peripherals (vs PIC16F1828T-I/SS)
Design Notes
The PIC16F1829LIN-E/SS integrates a 5V LDO that powers both the MCU core and the LIN bus driver from the VBAT pin. VBAT is the unregulated 12V automotive battery rail input; ensure the LIN bus load current and MCU peripheral load do not exceed the integrated LDO's output capability as specified in the datasheet. Add a bulk capacitor (>=10 uF) at VBAT for load-dump filtering and a 100 nF + 10 uF decoupling pair at VDD close to the IC.
The 20-pin SSOP package requires standard SMD land pattern with thermal pad routing per IPC-7351. Keep the LIN bus trace short and away from noisy switching nodes to maintain LIN EMC conformance; place the LIN pull-up resistor as close as possible to the LIN pin. Route the VBAT trace with adequate copper weight to handle the LDO input current plus bus fault transients.
Do not assume the LIN pin handles 12V indefinitely - although the integrated transceiver includes bus fault protection, external TVS clamping (e.g. SMBJ24CA) is recommended for harsh automotive environments per OEM EMC requirements. Also note that the 'E' temperature suffix covers -40C to +125C but does not by itself certify AEC-Q100; verify explicit AEC-Q100 grade with the supplier's data sheet for safety-critical deployments.
The LIN bus edge timing is governed by the integrated MCP2021A-class transceiver slew-rate control; no external slew-rate capacitor is required. However, ensure the LIN bus master termination and node slave termination match the LIN specification (typically 1 kOhm master + 30 kOhm slave per LIN 2.x) to avoid reflection and bus contention. Series inductance in the LIN trace should be minimized to keep the bus waveform within LIN conformance limits.
Compliance Information
RoHS and lead-free compliant per Microchip product page. AEC-Q100 explicit qualification status to be confirmed against lot-specific data sheet; 'E' suffix denotes -40C to +125C extended temperature range only, not an explicit AEC-Q100 grade.
