PIC16F1458-E/P - 8-bit 48MHz 7KB Flash USB MCU | Microchip
MPN: PIC16F1458-E/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.78 | $2.78 |
| 10 | $2.51 | $25.10 |
| 100 | $2.18 | $218.00 |
| 500 | $1.92 | $960.00 |
| 1,000 | $1.71 | $1,710.00 |
PIC16F1458-E/P Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, Flash program memory, RAM, peripherals, and I/O. Within the broader taxonomy, a PIC16F1xxx MCU belongs to Microchip's enhanced mid-range 8-bit PIC family (microcontroller -> 8-bit MCU -> PIC16F -> PIC16F1xxx enhanced mid-range), positioned for low-cost, low-power, USB-capable embedded designs where simplicity and deterministic interrupt response outweigh raw compute.
Key features include on-chip USB 2.0 full-speed transceiver and SIE, 7KB self-programmable Flash, 512B SRAM, 256B EEPROM, two 8-bit timers, one 16-bit timer, 10-bit ADC, PWM modules, and ultra-low-power sleep modes. The 48MHz internal oscillator enables USB clock derivation without external crystals in many designs.
The PIC16F1458 employs a Harvard RISC architecture with a 14-bit instruction word and a hardware multiplier, achieving predictable execution timing and deterministic interrupts — a hallmark of PIC microcontrollers favored in real-time control loops and USB HID class applications.
Typical applications include USB HID peripherals (keyboards, mice, custom input devices), low-power IoT sensor nodes, consumer electronics with USB connectivity, and educational/development boards where breadboard-friendly 0.3 inch DIP packages simplify prototyping.
When designing with this device, ensure the VUSB 3.3V LDO output is properly bypassed (typically 220nF) and consider the internal oscillator trimming for USB applications requiring tight clock accuracy. The DIP-20 footprint is ideal for through-hole prototyping but limits miniaturization versus SOIC/SSOP/QFN variants.
This page synthesizes distributor pricing, drop-in same-package alternatives (PIC16F1455, PIC16F1454, PIC16F1459, PIC16LF1458-E/P) from verified cross-reference data, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC16F1458-E/P — 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 PIC16F1458-E/P (same form factor and footprint) — differing in I/O Pins, Mounting Type, Operating Temperature, Package, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1455-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1454-E/P
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16LF1458-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1459-E/P
✅ Drop-In✓ In Stock
$1.92 / Unit
View Datasheet →PIC16F18444-E/P
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1458-E/P Maximum Ratings & Electrical Characteristics
| Series | PIC® XLP™ 16F |
| Core | PIC16 |
| Architecture | 8-bit enhanced mid-range Harvard RISC |
| Instruction Set | 14-bit |
| Program Memory (Flash) | 7KB (4K x 14) |
| RAM | 512 B |
| Maximum Clock Frequency | 48 MHz |
| I/O Pins | 18 |
| USB Interface | USB 2.0 Full-Speed (on-chip SIE + transceiver) |
| Package / Case | 20-DIP (0.300 inch, 7.62mm) |
| Mounting Type | Through-Hole |
| Operating Temperature | -40°C to +125°C |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F1458-E/P Pin Configuration
| Pin 1 | VDD — Positive power supply |
| Pin 2 | RA5 — Digital I/O / analog input |
| Pin 3 | RA4 — Digital I/O / analog input |
| Pin 4 | RA3/MCLR — Digital I/O or Master Clear (reset) |
| Pin 5 | RC5 — Digital I/O / PWM output |
| Pin 6 | RC4 — Digital I/O / PWM output |
| Pin 7 | RC3 — Digital I/O / analog input |
| Pin 8 | RC2 — Digital I/O / analog input |
| Pin 9 | RC1 — Digital I/O / analog input |
| Pin 10 | RC0 — Digital I/O / analog input |
| Pin 11 | RA2 — Digital I/O / analog input |
| Pin 12 | RA1 — Digital I/O / analog input |
| Pin 13 | RA0 — Digital I/O / analog input |
| Pin 14 | VUSB — USB internal 3.3V LDO output (bypass with 220nF) |
| Pin 15 | RB7 — Digital I/O |
| Pin 16 | RB6 — Digital I/O / ICSPCLK |
| Pin 17 | RB5 — Digital I/O |
| Pin 18 | RB4 — Digital I/O |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive power supply |
Typical Applications
PIC16F1458-E/P is suitable for 6 applications: USB HID Input Devices, Low-Power IoT Sensor Nodes, Consumer USB Peripherals, Educational and Development Boards, Industrial USB Data Acquisition, Automotive Interior USB Accessories.
USB HID Input Devices
The PIC16F1458-E/P's on-chip USB 2.0 full-speed transceiver and SIE, combined with 7KB Flash and 512B RAM, make it well-suited for USB HID-class peripherals such as custom keyboards, mice, game controllers, and barcode scanners. The 48MHz HFINTOSC can derive the 12Mbps USB clock without an external crystal, simplifying BOM. Placed as the sole MCU on a small PCB, it enumerates as a HID device using Microchip's MLA USB stack or vendor firmware. The 18 I/O pins support matrix key scanning or quadrature input. For HID reports under 64 bytes (the standard endpoint size), the 512B RAM is sufficient; the 7KB Flash holds the USB stack plus application logic.
Recommended
Low-Power IoT Sensor Nodes
XLP (eXtreme Low Power) technology in the PIC16F1458-E/P enables nanoWatt sleep modes with currents under 50nA typical, ideal for battery-powered IoT sensor nodes reporting periodically over USB or UART. The 18 I/O pins support multiple analog sensors through the 10-bit ADC, while the 7KB Flash accommodates small wireless protocol stacks or sensor-fusion code. Placed on a coin-cell or AA-powered board, the MCU wakes on interrupt, samples sensors, transmits, and returns to sleep — achieving multi-year battery life. The -40°C to +125°C extended temperature range supports outdoor and industrial deployments.
Recommended
Consumer USB Peripherals
Custom consumer USB peripherals such as presentation clickers, custom MIDI controllers, audio interfaces, and educational USB toys benefit from the PIC16F1458-E/P's USB 2.0 full-speed support and 20-pin PDIP package. The PDIP form factor simplifies hand-soldered prototypes and small-batch production. The 48MHz core supports 12 MIPS, sufficient for real-time HID processing at 1000Hz polling rates. Placed as the heart of a USB gadget, it negotiates enumeration, handles HID reports, and drives user-visible LEDs via PWM. The 7KB Flash holds HID class drivers and application logic; 512B RAM supports small endpoint buffers.
Recommended
Educational and Development Boards
The PIC16F1458-E/P's 0.300 inch (7.62mm) PDIP-20 package is breadboard-friendly, making it ideal for educational microcontroller kits, hobby projects, and university embedded systems courses. Students can swap the chip in/out of a breadboard without soldering, and the 18 I/O plus USB expose enough peripherals for introductory digital I/O, ADC, PWM, and USB experiments. The 7KB Flash accommodates structured firmware exercises. Placed on a training board with a USB connector and crystal header, it serves as a low-cost introduction to PIC architecture. MPLAB X IDE and XC8 compiler are free for educational use.
Recommended
Industrial USB Data Acquisition
Industrial data-acquisition front-ends that stream sensor readings over USB benefit from the PIC16F1458-E/P's deterministic interrupt response, 10-bit ADC, and integrated USB transceiver. The 48MHz core can sample multiple analog channels and stream bulk USB data at the full-speed 12Mbps limit, achieving kilohertz sample rates. The -40°C to +125°C extended temperature grade supports factory-floor deployments. Placed between industrial sensors (4-20mA loops, thermocouples, strain gauges) and a host PC, it provides isolated or non-isolated USB connectivity with custom firmware. The 7KB Flash holds USB bulk class drivers and acquisition code.
Recommended
Automotive Interior USB Accessories
Inside automotive cabins, the PIC16F1458-E/P can drive USB-connected accessories such as cabin lighting controllers, custom diagnostic interfaces, and aftermarket infotainment peripherals. The extended -40°C to +125°C temperature grade handles the thermal stress of closed vehicles in summer sun. The on-chip USB transceiver communicates with head units or aftermarket head-end modules. Placed in a small enclosure with a USB connector, the MCU enumerates as a HID or vendor-class device and exchanges control/status messages. The 7KB Flash accommodates small command sets; 18 I/O drive LEDs, relays, or analog sensor inputs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1458-E/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1455-E/P | PIC16F1454-E/P | PIC16LF1458-E/P | PIC16F1459-E/P | PIC16F18444-E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| Program Memory (Flash) | 7KB (4K x 14) | 14KB (8K x 14) - larger | 14KB (8K x 14) - larger | 7KB (4K x 14) - same | 16KB - larger | 7KB - same |
| RAM | 512 B | 512 B - same | 256 B - smaller | 512 B - same | 1024 B - larger | 512 B - same |
| Maximum Clock Frequency | 48 MHz | 48 MHz - same | 48 MHz - same | 48 MHz - same | 48 MHz - same | 32 MHz - lower |
| USB 2.0 Full-Speed | Yes (on-chip transceiver + SIE) | Yes - same | Yes - same | Yes - same | Yes - same | Yes - same |
| I/O Pins | 18 | 18 - same | 18 - same | 18 - same | 18 - same | 18 - same |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C - same | -40°C to +125°C - same | -40°C to +125°C - same | -40°C to +125°C - same | -40°C to +125°C - same |
Key Differentiators
- Cost-optimized USB MCU in 20-PDIP footprint (vs PIC16F1455-E/P)
- Standard VDD minimum 2.3V versus LF variant's 1.8V (vs PIC16LF1458-E/P)
- On-chip USB 2.0 full-speed transceiver eliminates external PHY (vs PIC16F18444-E/P (next-gen family))
Design Notes
The PIC16F1458-E/P requires a 220nF decoupling capacitor on VUSB (pin 14) to stabilize the internal 3.3V LDO that powers the USB transceiver. Place this capacitor as close as possible to the VUSB pin with a short trace. For VDD pins 1 and 20, use a 100nF ceramic bypass cap plus a bulk 10uF tantalum or ceramic capacitor. Estimated: at 48MHz active current ~9mA, plus USB pull-up current ~200uA, total worst-case active current is approximately 10mA — well within the 25mA VDD rating.
When routing USB D+ and D- traces (mapped to specific RA/RB pins via PPS), keep them matched-length within 150 mils and 90-ohm differential impedance matched to the USB upstream port. Place the VUSB bypass capacitor within 50 mils of the VUSB pin. The 20-pin PDIP package is through-hole and does not require impedance-controlled PCB stack-up, but USB compliance testing still applies for any product claiming USB certification.
Do not omit the 220nF VUSB bypass capacitor — the USB PHY will fail to enumerate reliably without it. For bus-powered designs, ensure VDD rises monotonically above 2.3V within the datasheet-specified power-on reset timing; add a 100nF cap on MCLR/RA3 if brownout behavior is observed. When migrating from PIC16F1458 to PIC16F1455 or PIC16F1459, recompile with the new memory map — the 7KB Flash boundary differs from 14KB or 16KB.
Compliance Information
RoHS-compliant and lead-free per Microchip product page. Not AEC-Q100 qualified - the 'E' suffix denotes extended -40C to +125C industrial temperature grade, not automotive qualification.
