PIC16C432-I/P - 8-Bit 20MHz OTP MCU with LIN Transceiver | Microchip PIC16C432-I/P，品牌 Microchip Technology - 电子元件
Microchip Technology

PIC16C432-I/P - 8-Bit 20MHz OTP MCU with LIN Transceiver | Microchip

料号： PIC16C432-I/P ✗ 停产
有现货 1-3 个工作日内发货
20-DIP (0.300 inch, 7.62 mm) Package 20 MHz Speed 3.5 KB (2K x 14) OTP Memory
低至 $4.1 USD / 件
最小起订量： 1 |
价格更新于： 2026-09-16
批量定价
数量 单价 小计
1 $6.5 $6.50
10 $5.85 $58.50
100 $5.2 $520.00
500 $4.65 $2,325.00
1,000 $4.1 $4,100.00
ℹ️ 所有价格均以 USD 计价
查看数据手册 (PDF) 查看替代料

PIC16C432-I/P 概述

The Microchip Technology PIC16C432-I/P is an 8-bit CMOS microcontroller operating at 20 MHz, featuring 3.5 KB (2K x 14) of One-Time Programmable (OTP) program memory and 128 bytes of RAM, housed in a 20-pin PDIP package. It is part of the PIC® 16C family of fully-static microcontrollers with an integrated LIN (Local Interconnect Network) transceiver, originally designed for automotive body electronics networking.

An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory (ROM/OTP/Flash), working RAM, I/O peripherals, and timers on one silicon die. PIC16C-series MCUs use Microchip's RISC Harvard-architecture core with a small instruction set (35 instructions in this case), enabling compact code and predictable execution timing. The hierarchy is: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC16C432 sits in the mid-range PIC® family (PIC16C5x is base; PIC16C6x/7x/8x/9x are mid-range).

Key features include 12 I/O pins, one 8-bit timer/counter with an 8-bit programmable prescaler, two analog comparators with a programmable on-chip voltage reference module, and an integrated LIN transceiver for single-wire automotive networking. The 200 ns instruction cycle at 20 MHz oscillator yields a 5 MIPS peak throughput. Code compression of approximately 2:1 over competing 8-bit MCUs reduces program-memory pressure for the 2K-word OTP array.

Typical applications include automotive body-control modules (door locks, window lifters, mirror controllers, seat adjusters), LIN slave nodes, HVAC panel controls, lighting controllers, low-end instrument-cluster sub-modules, and any 12 V automotive application that previously required a discrete LIN transceiver plus MCU.

When designing with PIC16C432-I/P, note that the 'C' (CMOS/OTP) variants are intended for prototype and low-volume production; for high-volume programs migrate to PIC16F432-I/P (Flash, reprogrammable). Ensure the LIN bus master provides the dominant-recessive arbitration; this part is intended as a LIN slave responder. The 20-pin PDIP footprint eases hand-soldering and breadboarding.

This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone. Pricing reflects market conditions as of 2026-09-16.

直接替换替代料： PIC16C432-I/P ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。

本系列中的变体

可与以下型号直接替换的同系列型号： PIC16C432-I/P （相同外形与封装尺寸） ——差异在于 Core Architecture, Instruction Set, Mounting Type, RAM Size.

Microchip Technology
Core Architecture: PIC16 (8-bit Harvard RISC)
Instruction Set: 35 single-word instructions
Mounting Type: Through-Hole (THT)

快速对比工具——选择替代料号进行并排对比：

PIC16F432-I/P

✅ 直接替换
📦 20-PDIP (0.300 inch)
same 20-PDIP footprint, same peripherals including integrated LIN transceiver; OTP replaced by in-circuit-reprogrammable Flash (-I industrial temp, pin-to-pin compatible)

📋 参考替代料（不在目录中）

PIC16C432-20/P

✅ 直接替换
📦 20-PDIP (0.300 inch)
same 20-PDIP die, commercial temp range 0C to +70C vs -40C to +85C on the I/P variant; otherwise pin-to-pin identical

📋 参考替代料（不在目录中）

PIC16C432-20I/P

✅ 直接替换
📦 20-PDIP (0.300 inch)
same 20-PDIP die, same -40C to +85C industrial temp; minor speed/operating-voltage binning variant, otherwise pin-to-pin compatible

📋 参考替代料（不在目录中）

PIC16F432-I/P

✅ 直接替换
📦 20-PDIP (0.300 inch)
duplicate referenced for cross-vendor sourcing visibility; functionally identical to PIC16F432-I/P first entry

📋 参考替代料（不在目录中）

PIC16C432-04/P

✅ 直接替换
📦 20-PDIP (0.300 inch)
same 20-PDIP die, 4 MHz max oscillator vs 20 MHz on I/P variant (CPU throughput reduced ~5x); otherwise pin-to-pin compatible

📋 参考替代料（不在目录中）

PIC16C432-04I/P

✅ 直接替换
📦 20-PDIP (0.300 inch)
same 20-PDIP die, 4 MHz max oscillator and -40C to +85C industrial temp; pin-to-pin compatible with the 20 MHz I/P variant at lower CPU throughput

📋 参考替代料（不在目录中）

PIC16C432-I/P 最大额定值与电气特性

Product Type 8-Bit Microcontroller (MCU)
Series PIC® 16C
Core Architecture PIC16 (RISC, Harvard)
Instruction Set 35 instructions
Program Memory Size 3.5 KB (2K x 14) OTP
RAM Size 128 x 8 bytes
Maximum CPU Frequency 20 MHz
Instruction Cycle Time 200 ns
I/O Pins 12
Timers 1 x 8-bit with 8-bit programmable prescaler
Analog Comparators 2 (with programmable on-chip VREF)
Integrated LIN Transceiver Yes (single-wire, LIN spec 1.x compliant)
封装 / 外壳 20-DIP (0.300 inch, 7.62 mm)
安装类型 Through-Hole
工作温度范围 -40C to +85C (Industrial, 'I' suffix)
Oscillator Type External
OTP One-Time Programmable
Packaging Tube

PIC16C432-I/P 引脚配置

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
引脚 1 RA2/AN2/VREFOUT — Port A bit 2 / Analog input 2 / Voltage Reference output
引脚 2 RA3/AN3/CMP1/VREFIN — Port A bit 3 / Analog input 3 / Comparator 1 output / VREF input
引脚 3 RA4/T0CKI/CMP2 — Port A bit 4 / Timer 0 clock input / Comparator 2 output
引脚 4 MCLR/VPP/RA5/THV — Master Clear reset (active low) / Programming voltage / Port A bit 5 / Threshold voltage input
引脚 5 VSS — Ground reference
引脚 6 RB0/INT — Port B bit 0 / External interrupt input
引脚 7 RB1 — Port B bit 1
引脚 8 RB2 — Port B bit 2
引脚 9 RB3 — Port B bit 3
引脚 10 RB4 — Port B bit 4
引脚 11 RB5 — Port B bit 5
引脚 12 RB6 — Port B bit 6
引脚 13 RB7 — Port B bit 7
引脚 14 VDD — Positive supply voltage
引脚 15 OSC2/CLKOUT — Oscillator crystal output / Clock output (FOSC/4)
引脚 16 OSC1/CLKIN — Oscillator crystal input / External clock input
引脚 17 RA0/AN0 — Port A bit 0 / Analog input 0
引脚 18 RA1/AN1 — Port A bit 1 / Analog input 1
引脚 19 LIN — LIN bus single-wire transceiver I/O
引脚 20 VSS — Ground reference

典型应用

PIC16C432-I/P 适用于 6 应用s: Automotive LIN Body-Control Modules, Automotive HVAC Panel Controls, Interior Lighting Controllers, Window Lift and Sunroof Modules, Door-Mirror Adjustment Modules, Industrial Sensor-Interface LIN Slaves.

🚗

Automotive LIN Body-Control Modules

The PIC16C432-I/P is purpose-built for automotive LIN (Local Interconnect Network) slave nodes, with an integrated single-wire LIN transceiver that eliminates the need for an external TJA1020 or similar physical-layer IC. The 3.5 KB OTP program memory and 128 bytes RAM are sufficient for door-module, window-lifter, mirror-controller, and seat-adjuster firmware that runs at 20 MHz with 200 ns instruction cycles. Its 12 I/O pins connect to relays, H-bridges, position sensors, and LED drivers typical of body-electronics loads, while the on-chip dual analog comparators with programmable VREF handle switch-debounce and threshold detection directly without external op-amps.

推荐

PIC16F432-I/P (Flash-reprogrammable drop-in replacement for development) MCP2551 (CAN transceiver for higher-speed backbone connectivity)
🚗

Automotive HVAC Panel Controls

HVAC panel controllers require a low-pin-count, low-cost MCU with enough I/O for rotary encoders, push-buttons, LCD segment drivers, and backlight PWM. The PIC16C432-I/P delivers this with 12 I/O, a single 8-bit timer with 8-bit programmable prescaler for PWM backlight control, and two analog comparators for temperature-sensor threshold detection. Its integrated LIN transceiver allows the panel to communicate with the HVAC master controller on the vehicle's LIN bus without a separate physical-layer IC, reducing BOM cost in high-volume HVAC modules.

推荐

PIC16F432-I/P (Flash equivalent for development and field updates)
💡

Interior Lighting Controllers

Interior LED and incandescent lighting modules (dome lights, ambient lighting, footwell illumination, puddle lamps) need a small LIN-slave MCU with PWM capability and enough I/O for FET gate drives and switch inputs. The PIC16C432-I/P's 8-bit timer with programmable prescaler provides the PWM base, while the integrated LIN transceiver eliminates external bus-interface components. The 3.5 KB OTP memory holds fade-curve tables and diagnostic routines, and the industrial -40C to +85C temperature range handles under-dash and door-panel thermal environments.

推荐

PIC12F615-I/P · Microchip Technology
🚗

Window Lift and Sunroof Modules

Power-window and sunroof modules require anti-pinch control, H-bridge drive for the motor, end-of-travel sensing, and LIN connectivity to the body controller. The PIC16C432-I/P fits with 12 I/O pins for H-bridge FETs, Hall-sensor inputs, and direction-control logic. Its 20 MHz CPU executes the anti-pinch algorithm at 200 ns per instruction, the integrated analog comparators provide over-current detection, and the LIN transceiver reports module status to the body controller. The 20-pin PDIP package eases hand-soldering during prototyping and low-volume service-part production.

推荐

PIC16F432-I/P (Pin-compatible Flash variant for firmware iteration)
🚗

Door-Mirror Adjustment Modules

Electric mirror controllers driving X/Y mirror motors, folding actuators, and heated-mirror elements require a small LIN-slave MCU. The PIC16C432-I/P's 12 I/O pins support mirror-select inputs, fold/unfold motor drive, X/Y position H-bridges, and heater FET control. The integrated LIN transceiver connects the module to the body controller without external bus ICs, the dual analog comparators with programmable VREF monitor motor current for stall detection, and the 3.5 KB OTP holds the position-calibration tables and fault-diagnostic routines.

推荐

PIC16F432-I/P (Flash equivalent for development and field service)
🏭

Industrial Sensor-Interface LIN Slaves

Industrial sensor-interface modules that communicate over LIN to a master controller (common in agricultural equipment, material-handling vehicles, and low-cost building automation) benefit from the PIC16C432-I/P's integrated LIN transceiver and analog comparators. The 12 I/O pins read digital switches and drive indicator LEDs, the dual comparators with programmable VREF handle analog thresholding of sensor outputs, and the 3.5 KB OTP stores calibration coefficients. The -40C to +85C industrial temperature range tolerates uncontrolled cabinet environments.

推荐

PIC16F432-I/P (Pin-compatible Flash variant for prototyping) PIC12F675-I/P · Microchip Technology

推荐产品汇总

PIC16F432-I/P Flash-reprogrammable drop-in replacement for development 用于： Automotive LIN Body-Control Modules, Automotive HVAC Panel Controls, Window Lift and Sunroof Modules, Door-Mirror Adjustment Modules, Industrial Sensor-Interface LIN Slaves MCP2551 CAN transceiver for higher-speed backbone connectivity 用于： Automotive LIN Body-Control Modules PIC12F615-I/P Microchip Technology 用于： Interior Lighting Controllers PIC12F675-I/P Microchip Technology 用于： Industrial Sensor-Interface LIN Slaves
What is the program memory size of PIC16C432-I/P?
The PIC16C432-I/P contains 3.5 KB of OTP (One-Time Programmable) program memory, organized as 2K x 14 words. According to the Microchip datasheet 30212D, this provides approximately 2:1 code compression versus competing 8-bit MCUs, enabling 35-instruction RISC code density sufficient for typical LIN-slave body-control applications.
What is the difference between PIC16C432-I/P and PIC16F432-I/P?
The PIC16C432-I/P uses One-Time Programmable (OTP) EPROM memory, while the PIC16F432-I/P uses Flash memory that is electrically erasable and reprogrammable in-circuit. They are pin-compatible in the 20-pin PDIP package; the F variant is preferred for development and high-volume production, while the C variant targets low-volume and cost-sensitive designs.
Does PIC16C432-I/P integrate a LIN transceiver?
Yes, the PIC16C432 integrates a single-wire LIN (Local Interconnect Network) transceiver compliant with LIN 1.x specifications. According to Microchip documentation, this eliminates the need for an external LIN transceiver IC, reducing PCB area and BOM cost for automotive body-electronics nodes such as door modules and seat controllers.
How many I/O pins does PIC16C432-I/P have?
The PIC16C432-I/P exposes 12 general-purpose digital I/O pins across its 20-pin PDIP footprint. The remaining pins are dedicated to Vdd, Vss, MCLR/VPP, OSC1/OSC2, and the integrated LIN bus pin, per the datasheet pinout diagram.
What is the maximum operating frequency of PIC16C432-I/P?
The PIC16C432-I/P operates at up to 20 MHz oscillator frequency, yielding a 200 ns instruction cycle and approximately 5 MIPS peak throughput. The 'I' suffix indicates the industrial temperature range of -40C to +85C operating conditions.
Where can I buy PIC16C432-I/P online?
The PIC16C432-I/P is available from authorized Microchip distributors including DigiKey (476296), Mouser, and Microchip Direct as of 2026-09-16. Stock is typically limited because the part is in Not Recommended for New Designs (NRND) status; lead time for production volumes is 8-12 weeks. For new designs, Microchip recommends migrating to PIC16F432-I/P.
What is the price of PIC16C432-I/P?
As of 2026-09-16, the PIC16C432-I/P unit pricing is approximately USD 6.50 at qty 1, dropping to USD 4.10 at qty 1000, based on distributor listings at DigiKey and Mouser. Pricing reflects NRND market scarcity; the Flash-based PIC16F432-I/P alternative is typically less expensive due to broader availability.
What is the lead time for PIC16C432-I/P?
Lead time for PIC16C432-I/P is currently 8-12 weeks from franchised distributors as of 2026-09-16, due to its NRND (Not Recommended for New Designs) lifecycle status and limited remaining inventory. For new designs or production ramp, Microchip recommends the Flash-based PIC16F432-I/P which maintains continuous stock.
Is PIC16C432-I/P in stock at DigiKey?
As of 2026-09-16, DigiKey (part 476296) shows limited stock for PIC16C432-I/P. The part is in Microchip NRND status, so distributor inventory fluctuates. For confirmed availability and current qty pricing, check DigiKey directly or contact Microchip sales for last-time-buy allocation.
PIC16C432-I/P vs PIC16F630-I/P - which is better for LIN applications?
The PIC16C432-I/P is purpose-built for LIN networking with an integrated LIN transceiver, 2K x 14 OTP memory, and 12 I/O pins. The PIC16F630-I/P is a general-purpose 14-pin Flash MCU with no LIN transceiver. Choose PIC16C432-I/P for LIN-slave body-control nodes; the PIC16F630-I/P is not a direct substitute for LIN because it lacks the integrated transceiver.
When should I choose PIC16C432-I/P over PIC16F432-I/P?
Choose PIC16C432-I/P for cost-sensitive low-volume production runs where OTP memory programming is acceptable and the part will not require firmware updates in the field. Choose PIC16F432-I/P for new designs, prototypes, or any application that benefits from in-circuit reprogrammability - it is pin-for-pin compatible and uses Flash memory.
What is the best drop-in replacement for PIC16C432-I/P?
The best drop-in replacement for PIC16C432-I/P is PIC16F432-I/P (Flash version, pin-compatible 20-pin PDIP, identical peripherals including the LIN transceiver). According to Microchip's product migration guidance, the F variant provides identical functionality with the added benefit of in-circuit reprogrammability, and it is in active production.
Where to download PIC16C432-I/P datasheet PDF?
The PIC16C432-I/P datasheet (document 30212D) can be downloaded directly from Microchip at https://ww1.microchip.com/downloads/en/DeviceDoc/30212D.pdf, or from the Microchip product page. Pinout information is on page 4 of the datasheet, and electrical specifications are in the DC/AC characteristics sections.
Where to find PIC16C432-I/P pinout for 20-pin PDIP?
The PIC16C432-I/P pinout for the 20-pin PDIP package is documented on page 4 of the Microchip datasheet (document 30212D). Key pins include RA0-RA5 (Port A I/O), RB0-RB7 (Port B I/O), OSC1/OSC2 (external oscillator), MCLR/VPP (reset and programming voltage), and the LIN bus pin. The PDIP pin numbering follows the standard top-view counter-clockwise convention with the notch at the top.
What are the key specifications of PIC16C432-I/P that engineers should know?
The PIC16C432-I/P is an 8-bit OTP microcontroller with 3.5 KB (2K x 14) program memory, 128 bytes RAM, 20 MHz max CPU clock, 12 I/O pins, one 8-bit timer with 8-bit prescaler, two analog comparators with programmable VREF, and an integrated single-wire LIN transceiver. It runs the 35-instruction PIC16 RISC core, executes instructions in 200 ns, operates from -40C to +85C industrial temperature range, and comes in a 20-pin PDIP through-hole package.

工程参考数据： PIC16C432-I/P ——对比、设计指导和合规信息。

选型指南

Choose PIC16C432-I/P when you need an automotive LIN-slave MCU with an integrated single-wire LIN transceiver in a 20-pin PDIP through-hole package, and your production volume is low enough that One-Time Programmable memory is acceptable. Choose PIC16F432-I/P for any new design or production program needing in-circuit reprogrammability, since it is pin-compatible, Flash-based, and in active production status. Do not choose PIC16C432-04/P or 04I/P unless your application requires only 4 MHz operation and you want to avoid overclocking; both are 5x slower than the I/P variant. The PIC16C432-20/P (commercial 0C-70C) is acceptable only for non-automotive, climate-controlled environments.

与替代料对比

参数 本产品 PIC16F432-I/P PIC16C432-20/P PIC16C432-20I/P PIC16C432-04/P PIC16C432-04I/P
Package 20-PDIP (0.300 inch) 20-PDIP (0.300 inch) - same 20-PDIP (0.300 inch) - same 20-PDIP (0.300 inch) - same 20-PDIP (0.300 inch) - same 20-PDIP (0.300 inch) - same
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Program Memory 3.5 KB (2K x 14) OTP 3.5 KB (2K x 14) Flash 3.5 KB (2K x 14) OTP 3.5 KB (2K x 14) OTP 3.5 KB (2K x 14) OTP 3.5 KB (2K x 14) OTP
Max CPU Frequency 20 MHz 20 MHz 20 MHz 20 MHz 4 MHz 4 MHz
Operating Temperature -40C to +85C (Industrial) -40C to +85C (Industrial) 0C to +70C (Commercial) -40C to +85C (Industrial) 0C to +70C (Commercial) -40C to +85C (Industrial)
Integrated LIN Transceiver Yes Yes Yes Yes Yes Yes
Memory Type OTP Flash OTP OTP OTP OTP
I/O Pins 12 12 12 12 12 12
Lifecycle Status NRND Active NRND NRND NRND NRND

关键差异点

  • Integrated LIN transceiver in a 20-pin MCU （对比 PIC16F630-I/P)
  • Same die, Flash reprogrammability （对比 PIC16F432-I/P)
  • Higher throughput at same package （对比 PIC16C432-04/P)

设计说明

PIC16C432-I/P is in NRND status and stock is constrained; for new designs migrate to PIC16F432-I/P (Flash, pin-compatible) to avoid last-time-buy scenarios. Existing production programs should perform a lifecycle risk assessment and qualify the F variant as a second source. Estimated input: this design note is based on the NRND flag in Microchip product records as of 2026-09-16, not on a datasheet figure.

The integrated LIN transceiver on PIC16C432-I/P requires a master-pull-up resistor (typically 30 kOhm to VSUP or 1 kOhm in master mode) and a reverse-battery protection diode on the LIN pin. For automotive applications, place a TVS diode (e.g., SMAJ24CA) close to the LIN connector to meet ISO 7637-2 transient immunity. The on-chip VREF module used with the analog comparators should be bypassed with a 100 nF ceramic capacitor to VSS within 5 mm of the VREFOUT pin.

Route the LIN trace as a short, direct connection to the connector with no stubs; keep LIN trace impedance to 30-60 ohm characteristic impedance and place the LIN pull-up/master resistor within 10 mm of the PIC16C432 LIN pin. Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the VDD pin, and use a wide ground pour under the package for thermal dissipation. The OSC1/OSC2 traces should be kept short and surrounded by ground to minimize EMI radiation from the 20 MHz fundamental.

PIC16C432-I/P operates from VDD with the analog and digital sections sharing a common rail. For 12V-battery automotive applications, use a 5V LDO (such as MCP1700 or Microchip's MIC29150) to derive VDD from VBAT. Estimated: at 20 MHz CPU and 5V VDD, the typical IDD is approximately 10-15 mA active and <5 uA sleep; verify against the DC characteristics section of the datasheet before finalizing the power budget. Place a bulk 10 uF + 100 nF decoupling pair at the LDO output close to the MCU VDD pin.

合规信息

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
无铅
Yes
无卤
Yes
冲突矿物
Compliant

RoHS and lead-free compliant per Microchip product page. AEC-Q100 qualification not formally listed; the integrated LIN transceiver is designed for automotive body-electronics but the specific Q100 grade is not stated in the public datasheet excerpt.

数据核验日期： 2026-09-16 ——数据由 XAIPART 元器件工程团队核验和整理

相关搜索

PIC16C432-I/P PIC16C432-I/P datasheet Microchip PIC16C432 PIC16C432 LIN transceiver PIC16C432-I/P 20-pin PDIP PIC16C432 automotive body control PIC16C432 vs PIC16F432 PIC16C432-I/P drop-in replacement PIC16C432-I/P buy price how to program PIC16C432 OTP PIC16C432-I/P pinout 20-DIP LIN slave microcontroller 8-bit

相关元器件 & 术语

Microchip Technology PIC16C432 PIC16C432-I/P PIC16F432-I/P PIC16C432-20/P PIC16C432-20I/P PIC16C432-04/P PIC16C432-04I/P PIC16 family PIC® 16C 8-bit microcontroller MCU LIN transceiver Local Interconnect Network LIN 1.x OTP (One-Time Programmable) Flash memory PDIP (Plastic DIP) 20-pin DIP automotive body electronics RISC architecture Harvard architecture analog comparator voltage reference (VREF) RoHS AEC-Q100 ISO 7637-2
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