PIC16F15243-E/SO - 8-bit MCU, 3.5KB Flash, 20-Pin SOIC | Microchip
料号： PIC16F15243-E/SO ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.98 | $0.98 |
| 10 | $0.92 | $9.20 |
| 100 | $0.83 | $83.00 |
| 500 | $0.74 | $370.00 |
| 1,000 | $0.66 | $660.00 |
PIC16F15243-E/SO 概述
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile working memory (RAM), and a set of on-chip peripherals into one package. PIC microcontrollers use a Harvard-architecture CPU with a RISC-like instruction set, separating program and data memory buses. Within Microchip's taxonomy, the PIC16F152xx belongs to the enhanced mid-range core family, positioned between the baseline PIC10/12/16 families and the high-performance PIC18 family, and tailored for cost-sensitive sensor and real-time control tasks.
Key features of the PIC16F15243 include 3.5 KB self-read/write Flash, 16 stack levels, two 10-bit PWMs, two Capture/Compare/PWM (CCP) modules, a Hardware Limit Timer (HLT), Watchdog Timer (WDT), PPS for flexible I/O mapping, EUSART (UART with LIN) and MSSP (SPI/I2C) communication, a 10-bit ADC with internal fixed-voltage reference, and eXtreme Low-Power Sleep mode. The 'E' suffix denotes an extended temperature grade of -40C to +125C.
The 20-pin SOIC package gives access to up to 18 general-purpose I/O pins via PPS, and the small outline footprint is suited for hand-soldered prototypes and high-density production boards alike. PPS allows most digital peripherals to be routed to almost any I/O pin, simplifying PCB layout and BOM reuse across the PIC16F152xx family. Combined with CIPs such as the Hardware Limit Timer, the device can service sensors, switches, and communication lines without CPU intervention, freeing the core for application logic.
Typical applications include low-power IoT sensor nodes, battery-powered remote controls, LED lighting controllers, white-goods and small-appliance control boards, and LIN-node automotive body electronics using the on-chip EUSART with LIN slave support. Designers value the XLP Sleep mode for multi-year coin-cell lifetimes and the PPS flexibility for layout reuse.
When designing with the PIC16F15243-E/SO, leave VDD/VSS decoupling within 5 mm of the pins, configure the Configuration Words for the desired oscillator and WDT behavior, and use PPS to keep high-speed signals (EUSART, MSSP) on adjacent pins to simplify routing. Verify ADC reference selection against the application noise budget, and ensure unused I/O pins are configured as outputs low to minimize Sleep current.
This page synthesizes distributor pricing, drop-in same-family alternates, and practical design notes that go beyond the manufacturer datasheet summary, helping procurement and design engineers evaluate the PIC16F15243-E/SO for both new designs and as a drop-in swap on existing 20-pin SOIC boards.
直接替换替代料： PIC16F15243-E/SO ——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： PIC16F15243-E/SO （相同外形与封装尺寸） ——差异在于 ADC, Package, Instruction Set, Program Memory (Flash), Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16F15243-I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F15243-E/P
✅ 直接替换✓ 有现货
$0.49 / 个
查看数据手册 →PIC16F15243-E/SS
✅ 直接替换✓ 有现货
$0.52 / 个
查看数据手册 →PIC16F15243-I/SS
✅ 直接替换✓ 有现货
$0.55 / 个
查看数据手册 →PIC16F15243-I/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F15245-I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F15243-E/SO 最大额定值与电气特性
| Family | PIC16F152xx |
| Core | Enhanced Mid-Range 8-bit |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| RAM | 256 B |
| Data EEPROM | Not specified in provided data |
| Max CPU Speed | 32 MHz |
| Instruction Set | 49 instructions, 16-level stack |
| ADC | 10-bit |
| PWM Channels | 2 (10-bit) |
| CCP Modules | 2 |
| Hardware Limit Timer (HLT) | Yes |
| Watchdog Timer (WDT) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Communication | EUSART (UART/LIN), MSSP (SPI/I2C) |
| XLP Sleep Mode | Yes (eXtreme Low Power) |
| I/O Pins | Up to 18 (via PPS) |
| 封装 | 20-pin SOIC (SO) |
| 工作温度 | -40C to +125C (E suffix: extended) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Functional Safety | PIC16F functional safety family |
PIC16F15243-E/SO 引脚配置
| 引脚 1 | RA0/ICDDAT — General-purpose I/O / ICD data |
| 引脚 2 | RA1 — General-purpose I/O |
| 引脚 3 | RA2 — General-purpose I/O |
| 引脚 4 | RA3 — General-purpose I/O / MCLR |
| 引脚 5 | RA4 — General-purpose I/O |
| 引脚 6 | RA5/ICSCLK — General-purpose I/O / ICD clock |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | RB4 — General-purpose I/O |
| 引脚 9 | RB5 — General-purpose I/O |
| 引脚 10 | RB6/ICSPCLK — General-purpose I/O / ICSPCLK |
| 引脚 11 | RB7/ICSPDAT — General-purpose I/O / ICSPDAT |
| 引脚 12 | VSS — Ground reference (secondary) |
| 引脚 13 | RC0 — General-purpose I/O |
| 引脚 14 | RC1 — General-purpose I/O |
| 引脚 15 | RC2 — General-purpose I/O |
| 引脚 16 | RC3 — General-purpose I/O |
| 引脚 17 | RC4 — General-purpose I/O |
| 引脚 18 | RC5 — General-purpose I/O |
| 引脚 19 | RC6 — General-purpose I/O |
| 引脚 20 | RC7 — General-purpose I/O |
典型应用
PIC16F15243-E/SO 适用于 6 应用s: Battery-Powered IoT Sensor Node, LIN Slave Body Electronics Node, White-Goods and Small-Appliance Control Board, LED Lighting Controller, Remote Control and HMI Keypad, Industrial Sensor Front End.
Battery-Powered IoT Sensor Node
The PIC16F15243-E/SO suits coin-cell IoT sensors because its eXtreme Low-Power (XLP) Sleep holds RAM while drawing nanoamp-level quiescent current, extending multi-year battery life. The 10-bit ADC reads temperature, light, or motion sensors while the CPU is asleep, and the Hardware Limit Timer (HLT) plus PPS let the device wake on a sensor edge without CPU involvement. At 32 MHz active mode, a measurement-and-transmit duty cycle of <1% is realistic.
推荐
LIN Slave Body Electronics Node
The PIC16F15243-E/SO is a natural fit for automotive LIN slave body-electronics modules (window lifters, mirror controllers, seat switches). Its on-chip EUSART supports LIN slave protocol without external transceivers, PPS reassigns the LIN pin to any I/O, and the 10-bit ADC reads switch/wiper positions directly. The 'E' temperature suffix (-40C to +125C) covers cabin and under-hood environments typical of LIN nodes.
推荐
White-Goods and Small-Appliance Control Board
The PIC16F15243-E/SO integrates well into washing machines, dishwashers, and countertop appliances where a 32 MHz 8-bit core, 10-bit ADC for sensor readout, and dual PWM for motor or valve control replace a discrete analog front end. The Hardware Limit Timer (HLT) provides safety cutoffs independent of software, and PPS keeps the PCB layout clean even when board revisions relocate the AC zero-cross or triac pins.
推荐
LED Lighting Controller
For commercial and architectural LED drivers, the PIC16F15243-E/SO delivers 2x 10-bit PWM channels and 2x CCP modules that can drive constant-current LED strings via external MOSFETs, while the 10-bit ADC reads light sensors or current-sense amplifiers for closed-loop dimming. PPS keeps the analog and digital paths short, and XLP Sleep lets the fixture idle at microwatts when the lights are off.
推荐
Remote Control and HMI Keypad
The PIC16F15243-E/SO fits IR/RF remote controls and small human-machine interface keypads, where its XLP Sleep mode enables multi-year battery life, the EUSART drives an external RF transceiver for 433/868 MHz links, and PPS reassigns the keypad matrix to spare I/O without board re-spins. The 256 B RAM is sufficient for scan-debounce state and short RF payload buffers.
推荐
Industrial Sensor Front End
In factory-automation sensor front ends, the PIC16F15243-E/SO digitizes analog 4-20 mA or 0-10 V signals via its 10-bit ADC, gates a digital output via a CCP module, and reports state over SPI to a host PLC using the on-chip MSSP. The -40C to +125C extended temperature grade supports outdoor and cabinet-mounted industrial installations, while PPS keeps the analog and digital paths on separate pin groups.
推荐
推荐产品汇总
工程参考数据： PIC16F15243-E/SO ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F15243-I/SO | PIC16F15243-E/P | PIC16F15243-E/SS | PIC16F15243-I/SS | PIC16F15245-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SOIC (SO) | 20-pin SOIC (SO) - same | 20-pin PDIP (P) - different mechanical | 20-pin SSOP (SS) - different mechanical | 20-pin SSOP (SS) - different mechanical | 20-pin SSOP (SS) - different mechanical |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 7 KB (larger) |
| RAM | 256 B | 256 B | 256 B | 256 B | 256 B | 512 B (larger) |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| XLP Sleep / CIPs / PPS | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes |
| Unit Price (qty 1, as of 2026-09-19) | $0.98 | Similar / lower (I grade usually cheaper) | Lower (PDIP is typically less expensive) | Higher (SSOP typically more expensive than SOIC) | Higher (SSOP typically more expensive) | Higher (larger die, SSOP) |
关键差异点
- Extended-temperature grade in SOIC （对比 PIC16F15243-I/SO)
- SOIC footprint preferred for hand-soldering and high-density production （对比 PIC16F15243-E/P (PDIP))
- Newer-generation CIPs and PPS versus older 8-bit MCUs （对比 PIC16F1508-I/SO)
设计说明
Estimated: at 32 MHz active and 3.3 V VDD, the PIC16F15243-E/SO core draws roughly 4-6 mA in active mode. Decouple VDD/VSS with a 100 nF ceramic within 5 mm of the supply pins; add a bulk 1-10 uF if the supply is shared with RF or motor loads. To exploit XLP Sleep for battery applications, place the device in Sleep between measurements and wake from the Hardware Limit Timer (HLT) or a peripheral interrupt rather than from the Watchdog Timer alone.
Use the 20-pin SOIC land pattern recommended by Microchip (IPC-7351 nominal density). Provide a ground pour under the MCU and stitch vias around the perimeter to keep return paths short for the EUSART and MSSP lines. Keep the ICSP/ICD pins (RA0/ICDDAT, RA5/ICSCLK, RB6/ICSPCLK, RB7/ICSPDAT) routed to a 4-pin header or test pad cluster so debug and programming do not require board rework.
Do not leave the MCLR/RA3 pin floating - tie it to VDD through a 10 kohm resistor or drive it directly from the debugger. Unused I/O pins must be configured as outputs low (not inputs) to minimize Sleep current. When using the ADC, allow the internal reference the manufacturer-specified settling time after enabling, or first conversions will be inaccurate.
When routing EUSART (LIN/UART) and MSSP (SPI/I2C) traces, keep them short and adjacent where possible; the PIC16F15243-E/SO's Peripheral Pin Select (PPS) lets you remap these peripherals to convenient pins, so choose pin assignments that minimize trace crossings on the PCB. For SPI runs above 1 MHz, place a 33 ohm series resistor near the driver to dampen ringing on the SCK line.
合规信息
RoHS and lead-free per Microchip PIC16F152xx product page. AEC-Q100 grade is not formally listed for this part number; Microchip publishes separate automotive qualification data for select PIC variants. XLP Sleep and PPS are functional features, not certifications.