PIC16LF1934-E/P - 8-bit 32MHz XLP MCU 7KB Flash 40-PDIP | Microchip
料号： PIC16LF1934-E/P ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.65 | $2.65 |
| 10 | $2.4 | $24.00 |
| 100 | $2.12 | $212.00 |
| 500 | $1.86 | $930.00 |
| 1,000 | $1.62 | $1,620.00 |
PIC16LF1934-E/P 概述
An 8-bit microcontroller is a small computing-on-a-chip that combines a CPU, program memory (Flash), data memory (SRAM), non-volatile data storage (EEPROM), and a rich set of peripherals such as timers, ADC, PWM, EUSART, MSSP (I2C/SPI), comparators and I/O. In the broader system hierarchy it sits within the microcontroller category -> embedded controllers -> semiconductors, and as a Microchip PIC16F family part it is widely supported by the MPLAB X IDE, XC8 compiler and PICkit debug ecosystem.
Key features include an integrated LCD driver supporting up to 96 segments, a 10-bit ADC with up to 14 channels, mTouch capacitive-touch peripherals, two PWM/Signal Measurement Timer modules, a master I2C/SPI EUSART, two analog comparators, and CTMU charge-time measurement hardware. XLP technology typically delivers < 50 nA sleep current and wake-from-RTC currents below 1 uA, enabling multi-year battery life in metering and IoT nodes.
Architecturally the device uses a Harvard-class enhanced 8-bit core with a hardware multiplier, an internal 31 kHz LF oscillator plus a 32 MHz HF oscillator (PLL or HFINTOSC selectable), and a flexible peripheral pin-select matrix. The 14-bit instruction word and 16-level hardware stack give deterministic real-time response for control loops.
Typical applications include battery-powered metering (water/gas/electricity), human-machine interface (HMI) panels with LCD, home appliance user interfaces, sensor hub nodes, capacitive-touch front panels, and low-power IoT endpoints. Designers should follow the datasheet's decoupling and PCB layout recommendations for the analog supply (AVDD/AVSS) and route the LCD bias network symmetrically to suppress ghosting.
直接替换替代料： PIC16LF1934-E/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： PIC16LF1934-E/P （相同外形与封装尺寸） ——差异在于 LCD Driver, Package, Timers, ADC, Data EEPROM.
快速对比工具——选择替代料号进行并排对比：
PIC16LF1934-I/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F1934-I/PT
✅ 直接替换✓ 有现货
$1.66 / 个
查看数据手册 →PIC16F1937-I/PT
✅ 直接替换✓ 有现货
$3.1 / 个
查看数据手册 →PIC16LF1934-E/P 最大额定值与电气特性
| Core | PIC 8-bit Enhanced Mid-range |
| Instruction Set Architecture | Harvard, 14-bit instructions |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 256 B |
| Data EEPROM | 256 B |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage Range | 1.8 V to 5.5 V |
| 封装 | 40-pin PDIP (Through-Hole, 0.6") |
| 安装类型 | Through-Hole |
| I/O Pins | 36 |
| LCD Driver | Up to 96 segments (up to 4 common) |
| ADC | 10-bit, up to 14 channels |
| Timers | 4 (Timer0, Timer1, Timer2, SMT) |
| Analog Comparators | 2 |
| Communication Peripherals | EUSART (LIN/IrDA), MSSP (I2C/SPI) |
| PWM Channels | Up to 4 (10-bit) |
| Internal Oscillator | 31 kHz LF + 16 MHz HF (PLL to 32 MHz) |
| nanoWatt XLP Sleep Current | Typical < 50 nA (datasheet RTCC mode) |
| 工作温度 | -40C to +125C (E = Extended) |
| RoHS 状态 | Compliant |
PIC16LF1934-E/P 引脚配置
| 引脚 1 | SEG7 — LCD segment 7 / I/O: RA0 |
| 引脚 2 | SEG6/VCAP — LCD segment 6 / VCAP / I/O: RA1 |
| 引脚 3 | SEG5 — LCD segment 5 / I/O: RA2 |
| 引脚 4 | SEG4 — LCD segment 4 / I/O: RA3 |
| 引脚 5 | SEG3 — LCD segment 3 / I/O: RA4 |
| 引脚 6 | SEG2 — LCD segment 2 / I/O: RA5 |
| 引脚 7 | VSS — Ground reference |
| 引脚 8 | SEG1 — LCD segment 1 / I/O: RA6 |
| 引脚 9 | SEG0 — LCD segment 0 / I/O: RA7 |
| 引脚 10 | COM3 — LCD common 3 / I/O: RB0 |
| 引脚 11 | COM2 — LCD common 2 / I/O: RB1 |
| 引脚 12 | COM1 — LCD common 1 / I/O: RB2 |
| 引脚 13 | COM0 — LCD common 0 / I/O: RB3 |
| 引脚 14 | SEG15 — LCD segment 15 / I/O: RB4 |
| 引脚 15 | SEG14 — LCD segment 14 / I/O: RB5 |
| 引脚 16 | SEG13 — LCD segment 13 / I/O: RB6 / ICSPCLK |
| 引脚 17 | SEG12 — LCD segment 12 / I/O: RB7 / ICSPDAT |
| 引脚 18 | VDD — Positive supply voltage |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | SEG31 — LCD segment 31 / I/O: RC0 |
| 引脚 21 | SEG30 — LCD segment 30 / I/O: RC1 |
| 引脚 22 | SEG29 — LCD segment 29 / I/O: RC2 |
| 引脚 23 | SEG28 — LCD segment 28 / I/O: RC3 |
| 引脚 24 | SEG26 — LCD segment 26 / I/O: RC4 |
| 引脚 25 | SEG25 — LCD segment 25 / I/O: RC5 |
| 引脚 26 | SEG24 — LCD segment 24 / I/O: RC6 / TX/CK |
| 引脚 27 | SEG23 — LCD segment 23 / I/O: RC7 / RX/DT |
| 引脚 28 | AVDD — Analog positive supply |
| 引脚 29 | AVSS — Analog ground reference |
| 引脚 30 | AN11/SEG39 — ADC input / LCD segment / I/O: RD0 |
| 引脚 31 | AN10/SEG40 — ADC input / LCD segment / I/O: RD1 |
| 引脚 32 | AN9/SEG41 — ADC input / LCD segment / I/O: RD2 |
| 引脚 33 | AN8/SEG42 — ADC input / LCD segment / I/O: RD3 |
| 引脚 34 | AN12/SEG43 — ADC input / LCD segment / I/O: RD4 |
| 引脚 35 | AN13/SEG44 — ADC input / LCD segment / I/O: RD5 |
| 引脚 36 | AN14/SEG45 — ADC input / LCD segment / I/O: RD6 |
| 引脚 37 | AN15/SEG46 — ADC input / LCD segment / I/O: RD7 |
| 引脚 38 | VLCD3 — LCD bias 3 / I/O: RE0 |
| 引脚 39 | VLCD2 — LCD bias 2 / I/O: RE1 |
| 引脚 40 | VLCD1 — LCD bias 1 / I/O: RE2 |
| 引脚 41 | MCLR/VPP — Master Clear (Reset) / Programming voltage |
| 引脚 42 | OSC1/CLKIN — Crystal input / external clock in |
典型应用
PIC16LF1934-E/P 适用于 6 应用s: Battery-Powered Smart Metering, HMI Panel with Integrated LCD, Capacitive Touch Front Panel, Industrial Sensor Hub / IoT Node, Low-Power Wireless Remote Control, Automotive Body and Climate Module.
Battery-Powered Smart Metering
The PIC16LF1934-E/P suits battery-powered gas, water and electricity meters thanks to nanoWatt XLP technology. Its 1.8-5.5 V operating range allows direct connection to 3.6 V lithium-thionyl-chloride cells, while <50 nA sleep current with the 32 kHz RTCC running enables multi-year battery life. The 10-bit ADC reads sensor outputs, the LCD driver displays consumption on the meter's glass, and the EUSART drives a low-power wireless M-Bus or LoRaWAN modem through UART. The 32 MHz HFINTOSC provides enough MIPS to run the metrology algorithm at metrological accuracy without an external crystal, reducing BOM cost. Engineers using this part typically achieve > 10-year operation on a single D-cell with hourly reads.
推荐
HMI Panel with Integrated LCD
The PIC16LF1934-E/P integrates a hardware LCD controller capable of driving up to 96 segments across 4 commons, removing the need for an external LCD driver in appliance and HVAC user-interface panels. With 36 I/O, designers can dedicate pins to the LCD bias network, push-buttons and rotary encoder without muxing. The 32 MHz core provides enough headroom to run a small UI state machine plus serial communication to the host controller via EUSART. The 40-pin PDIP package simplifies hand-soldered prototypes and rework. According to the datasheet's segmented-LCD biasing section, the on-chip charge pump can generate V_LCD up to 5.5 V from a 3 V cell, supporting 1/3 bias 1/4 duty LCD glass.
推荐
Capacitive Touch Front Panel
The PIC16LF1934-E/P includes Microchip's mTouch peripheral plus the CTMU charge-time measurement unit, enabling robust capacitive-touch button and slider implementation without external touch ICs. The 32 MHz instruction rate and the mTouch CVD scan-time allow sub-10 ms response on a 12-key panel while the rest of the time the core remains in sleep drawing nA. The 256 B EEPROM stores calibration constants and the 7 KB Flash holds the mTouch library plus the application. This combination makes the part ideal for white-good front panels, industrial control keypads and proximity-sensing user interfaces.
推荐
Industrial Sensor Hub / IoT Node
The PIC16LF1934-E/P fits distributed sensor-hub nodes in industrial and building-automation networks that must run for years on battery. Its 14-channel 10-bit ADC reads multiple analog sensors (temperature, humidity, 4-20 mA loop inputs, thermistors), the MSSP interfaces to I2C sensors (temperature, pressure) and SPI sensors (accelerometers, gas sensors), and the EUSART drives a wireless modem. The EUSART supports LIN 2.0 for LIN-bus sensor nodes and IrDA for line-of-sight links. XLP sleep currents below 1 uA with wake-on-RTCC mean the node wakes once per minute to take a reading and returns to sleep, achieving 10+ year battery life on 2 x AA alkaline cells.
推荐
Low-Power Wireless Remote Control
The PIC16LF1934-E/P is widely used in low-power RF remote controls paired with sub-GHz or 2.4 GHz transceivers over SPI. The XLP sleep current combined with wake-on-edge GPIO allows the unit to sit idle drawing < 1 uA until a button is pressed, then quickly transmit and return to sleep. The 32 MHz core is sufficient to handle bit-banged or hardware-driven protocols, and the 7 KB Flash accommodates user codes for pairing, security and button mapping. The extended -40C to +125C temperature grade suits outdoor remote-control applications including garage-door openers, security fobs and ceiling-fan remotes.
推荐
Automotive Body and Climate Module
The PIC16LF1934-E/P's extended -40C to +125C temperature grade and 1.8-5.5 V operating range fit non-safety automotive body-control applications including climate-control keypads, seat-control modules, mirror switch clusters and lighting controllers. The on-chip LCD driver is ideal for dashboard info displays, while the EUSART and MSSP interface with LIN sub-nodes and CAN transceivers through a bridge. The 32 MHz instruction rate handles debounce, PWM control of LED backlighting and LIN slave communication in real time. For safety-relevant ECUs requiring AEC-Q100, use the PIC16LF1934-E/P family equivalents in the automotive grade suffix.
推荐
推荐产品汇总
工程参考数据： PIC16LF1934-E/P ——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 | PIC16LF1934-I/P | PIC16F1934-I/P | PIC16F1937-I/P | PIC16LF1933-I/P | PIC16LF1934-I/PT |
|---|---|---|---|---|---|---|
| Package | PDIP-40 (Through-Hole) | PDIP-40 - same | PDIP-40 - same | PDIP-40 - same | PDIP-28 - different | TQFP-44 - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC 8-bit Enhanced Mid-range, 14-bit instructions | Same PIC 8-bit Enhanced Mid-range | Same PIC 8-bit Enhanced Mid-range | Same PIC 8-bit Enhanced Mid-range | Same PIC 8-bit Enhanced Mid-range | Same PIC 8-bit Enhanced Mid-range |
| Operating Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 2.3 V to 5.5 V (no sub-2.3 V) | 2.3 V to 5.5 V (no sub-2.3 V) | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Program Memory (Flash) | 7 KB (4K x 14) | 7 KB | 7 KB | 14 KB | 7 KB | 7 KB |
| Data SRAM | 256 B | 256 B | 256 B | 512 B | 256 B | 256 B |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 32 MHz (8 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 36 | 36 | 36 | 54 | 28 | 36 |
| LCD Driver (max segments) | 96 (4 common) | 96 | 96 | 96 | 64 | 96 |
| Temperature Grade | -40C to +125C (E = Extended) | -40C to +85C (I = Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Extended -40C to +125C temperature grade vs typical -40C to +85C industrial （对比 PIC16LF1934-I/P)
- Lowest operating voltage (1.8 V) in the LF family （对比 PIC16F1934-I/P)
- 40-pin PDIP Through-Hole package （对比 PIC16LF1934-I/PT)
设计说明
Decouple VDD with a 100 nF ceramic close to the pin and bulk 10 uF tantalum or ceramic at the board supply entry. Use separate analog and digital grounds tied at a single point near the MCU. Place the AVSS/AVDD pair with their own 100 nF + 10 uF decoupling network, as the LCD driver and ADC reference both draw from the analog rail. For battery-powered XLP designs, gate the LCD charge pump off in sleep to save ~1 uA.
Route the LCD segment and common traces symmetrically and avoid crossing them with switching or digital signals. The on-chip charge-pump pins VLCD1/VLCD2/VLCD3 should each have a 1 uF external reservoir capacitor close to the pin. For touch-sensing applications using the CTMU, keep the sense traces short and guard-ringed with the SLE rail to minimise coupling. Always connect MCLR through a 10 kohm pull-up to VDD, with a 100 nF to ground for noise immunity.
Estimated: at 32 MHz and 5 V with all peripherals active, IDD reaches ~7 mA, so the on-chip 16 MHz HFINTOSC + PLL configuration is required. Many engineers forget to enable the PLL with OSCCON; the part then runs at 16 MHz rather than 32 MHz. Also, when migrating PIC16F1934 code to PIC16LF1934 at 1.8 V, the Brown-out Reset and ADC reference voltages must be re-tuned because the absolute reference depends on VDD. Finally, do not skip setting the ANSELA/ANSELB/ANSELC/ANSELD bits when using ADC inputs - leaving them as analog defaults is fine but digital I/O conflicts must be cleared.
合规信息
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive safety-relevant designs use the AEC-Q100 qualified part within the PIC16LF1934 family. Lead-free terminations confirmed. Halogen-free status not extracted from the verified data.
