PIC16C715T-20I/SS - 8-bit OTP MCU 3.5KB EPROM 20MHz 20-SSOP | Microchip
部品番号: PIC16C715T-20I/SS ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.94 | $3.94 |
| 10 | $3.74 | $37.40 |
| 100 | $3.5 | $350.00 |
| 500 | $3.25 | $1,625.00 |
| 1,000 | $3 | $3,000.00 |
PIC16C715T-20I/SS 概要
What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a class of MCU whose program memory can be written only once after manufacture, using an external programmer. OTP parts are widely used in cost-sensitive, high-volume consumer and industrial products where firmware is finalized at production time and field re-programmability is not required. Within the broader semiconductor hierarchy, OTP MCUs sit under: microcontroller -> embedded processor -> digital IC -> semiconductor. The PIC16C715 belongs to Microchip's PIC16C mid-range family, which combines RISC architecture (35 single-word instructions) with integrated analog peripherals for compact mixed-signal designs.
Key features include PIC16C5X/PIC12CXXX upward source-code compatibility, 4-channel 8-bit ADC with selectable reference, low-power CMOS design, on-chip reset and watchdog timer, and a wide 2.5V to 5.5V VDD operating range. The 20-SSOP (209-mil) package is footprint-compatible with other PIC16C71X and PIC16F71X family members, simplifying PCB layout migration. Power-saving SLEEP mode and a programmable code-protection bit round out the peripheral set for cost-driven embedded control.
Architecturally, the PIC16C715 uses a Harvard-class RISC core with separate program (14-bit wide OTP) and data (8-bit wide SRAM) buses, allowing simultaneous instruction fetch and operand access. The 200 ns instruction cycle at 20 MHz oscillator provides deterministic 5 MIPS throughput suitable for closed-loop control loops, sensor signal conditioning, and simple user-interface handling in appliance and automotive body-electronics segments.
Typical applications include appliance control boards, battery chargers, simple sensor interfaces with on-board ADC conversion, LED/LCD indicator drivers, and low-cost industrial controllers. Designers migrating to flash-based firmware should consider the newer PIC16F716, which Microchip recommends as a functional replacement with in-circuit reprogrammability.
Design consideration: the OTP window is write-once, so verify firmware with a windowed or equivalent flash sibling (PIC16F716) before committing to masked production parts. Decouple VDD with a 0.1 uF ceramic capacitor placed within 5 mm of the pin, and route the MCLR/VPP trace away from switching nodes to avoid spurious resets.
This page synthesizes Microchip PIC16C715 family documentation, current distributor pricing as of 2026-09-18, drop-in same-family replacements, and practical design notes that go beyond what is in the standalone datasheet to assist engineers in sourcing, replacement, and layout decisions.
ドロップイン代替品: PIC16C715T-20I/SS — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC16C715T-20I/SS （同一形状・フットプリント） — 相違点: Package, Timers, Program Memory Type, ADC, Operating Temperature.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16C715T-20/SS
✅ ドロップイン✓ 在庫あり
$2.55 / 個
データシートを見る →PIC16C715-20I/SS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F716-I/SS
✅ ドロップイン✓ 在庫あり
$1.58 / 個
データシートを見る →PIC16C712T-04I/SS
✅ ドロップイン✓ 在庫あり
$3.9 / 個
データシートを見る →PIC16C711T-20I/SS
✅ ドロップイン✓ 在庫あり
$0.92 / 個
データシートを見る →PIC16C711T-04I/SS
✅ ドロップイン✓ 在庫あり
$3.32 / 個
データシートを見る →PIC16C715T-20I/SS 最大定格＆電気的特性
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC16C Mid-Range RISC |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM | 128 bytes |
| EEPROM Data Memory | 0 bytes (not present on this family) |
| CPU Speed (Max) | 20 MHz |
| Instruction Execution Time | 200 ns (5 MIPS) |
| Instruction Set | 35 single-word instructions |
| I/O Pins | 13 digital I/O |
| ADC | 4 channels x 8-bit |
| Timers | 1 x 8-bit, 1 x 16-bit (Timer0/Timer1) |
| Operating Voltage (VDD) | 2.5 V to 5.5 V |
| 動作温度 | -40 C to +85 C (Industrial) |
| パッケージ | 20-pin SSOP (209-mil) |
| 実装タイプ | Surface Mount |
| Watchdog Timer | Yes (on-chip WDT) |
PIC16C715T-20I/SS ピン構成
| ピン 1 | MCLR/VPP — Master Clear (reset) input / Programming voltage |
| ピン 2 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| ピン 3 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| ピン 4 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| ピン 5 | RA3/AN3/VREF — Digital I/O / Analog input channel 3 / ADC reference voltage |
| ピン 6 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| ピン 7 | RA5/AN4/SS — Digital I/O / Analog input channel 4 / Slave Select |
| ピン 8 | OSC1/CLKIN — Oscillator input / External clock input |
| ピン 9 | OSC2/CLKOUT — Oscillator output / Clock output |
| ピン 10 | RC0 — Digital I/O (Port C bit 0) |
| ピン 11 | RC1 — Digital I/O (Port C bit 1) |
| ピン 12 | RC2 — Digital I/O (Port C bit 2) |
| ピン 13 | RC3 — Digital I/O (Port C bit 3) |
| ピン 14 | RC4 — Digital I/O (Port C bit 4) |
| ピン 15 | RC5 — Digital I/O (Port C bit 5) |
| ピン 16 | RC6 — Digital I/O (Port C bit 6) |
| ピン 17 | RC7 — Digital I/O (Port C bit 7) |
| ピン 18 | RB7 — Digital I/O (Port B bit 7) / interrupt-on-change |
| ピン 19 | VSS — Ground reference |
| ピン 20 | VDD — Positive supply voltage (2.5V to 5.5V) |
主な用途
PIC16C715T-20I/SS の用途: 6 件s: Appliance Control Boards, Battery Chargers and Power Management, Simple Sensor Interface Modules, LED and Indicator Display Drivers, Low-Cost Industrial Controllers, Automotive Body Electronics (Non-Safety).
Appliance Control Boards
The PIC16C715T-20I/SS fits appliance control boards where cost dominates feature requirements. Its 3.5 KB OTP program memory comfortably holds state-machine firmware for washing-machine timers, microwave oven controllers, and dishwasher cycle programs without field reprogramming needs. The integrated 4-channel 8-bit ADC reads temperature sensors (NTC), water level switches (analog), and door-latch position directly, eliminating external ADC ICs. The 13 I/O pins drive relays, triac-trigger optos, and seven-segment or LED indicator arrays via multiplexing. Industrial -40C to +85C temperature rating handles laundry-room and kitchen thermal environments, and the 20 MHz core executes 5 MIPS for real-time debounce and PID control loops. OTP programming locks firmware at production to prevent warranty-fraud firmware swaps.
おすすめ
Battery Chargers and Power Management
The PIC16C715T-20I/SS is well matched to sealed lead-acid (SLA) and NiMH charger control boards, where its integrated ADC monitors battery voltage and charge current via shunt resistors without external analog ICs. The 4-channel 8-bit ADC supports up to four-cell monitoring or redundant voltage/current sense channels. The 5 MIPS core executes CC-CV (constant-current constant-voltage) charge algorithms with adequate timing resolution for slope detection and end-of-charge termination. Wide 2.5 V to 5.5 V VDD allows direct operation from the battery stack without auxiliary regulators. SLEEP mode reduces quiescent current during float-charge maintenance, extending battery life in float-standby applications. The OTP window is sufficient for fixed charge profiles used in OEM charger products.
おすすめ
Simple Sensor Interface Modules
The PIC16C715T-20I/SS is purpose-built for low-cost analog sensor interface boards where the integrated 4-channel ADC converts sensor outputs (temperature, light, pressure, humidity) to digital values for transmission over UART or PWM. Each of the four ADC channels multiplexes one sensor input through a software-selectable reference, allowing ratiometric measurements and absolute readings from the same firmware. The PIC16C mid-range core runs at 20 MHz giving 200 ns instruction execution, fast enough for software UART bit-banging at 9600 baud when a hardware UART is unavailable. The 13 digital I/O lines accept quadrature encoder inputs, button matrices, and indicator LEDs in addition to the four analog channels, eliminating external logic on small sensor PCBs.
おすすめ
LED and Indicator Display Drivers
The PIC16C715T-20I/SS drives multiplexed LED seven-segment displays and discrete LED indicators in user-interface panels, with the 13 digital I/O lines providing sufficient segment and digit lines for a 4-digit seven-segment plus LED bar combination when Charlieplexed. The 5 MIPS throughput executes the multiplex refresh loop with comfortable headroom for button scanning and serial command handling on the same MCU. OTP programming locks the segment-lookup table and animation patterns at production, preventing firmware drift between manufacturing batches. The 2.5 V to 5.5 V VDD range supports direct operation from USB-derived 5 V or 3.3 V rails in modern appliances. Industrial temperature rating supports outdoor signage and automotive interior indicator applications.
おすすめ
Low-Cost Industrial Controllers
The PIC16C715T-20I/SS handles simple industrial controller duties including conveyor sequencing, valve timing, motor start/stop logic, and process-variable monitoring where the integrated 4-channel ADC eliminates external analog front-end ICs. The PIC16C mid-range 35-instruction RISC core is deterministic and easy to certify for industrial safety applications. OTP programming locks validated control firmware at production, meeting the firmware-frozen requirements common in industrial machinery approvals. Industrial -40C to +85C rating tolerates factory floor thermal environments and enclosed control cabinets. On-chip watchdog timer and brown-out reset improve reliability in electrically noisy industrial environments, and the SSOP-20 package enables compact DIN-rail controller PCBs.
おすすめ
Automotive Body Electronics (Non-Safety)
The PIC16C715T-20I/SS is suitable for non-safety automotive body electronics such as interior lighting controllers, seat-position memory modules, mirror-adjust drivers, and accessory timers where its industrial temperature rating handles cabin thermal environments. The integrated ADC reads potentiometers for seat-position feedback and ambient-light sensors for automatic headlamp delay circuits. PIC16C mid-range RISC core executes body-control logic with predictable timing, and OTP memory locks validated firmware per vehicle-program. The wide 2.5 V to 5.5 V operating range tolerates 12 V automotive battery transients when paired with external voltage regulation. Note: for safety-critical automotive applications (airbag, ABS, ECU), use AEC-Q100-qualified parts such as PIC16F716-E/SS or dsPIC33 families.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC16C715T-20I/SS — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC16C715T-20/SS | PIC16C715-20I/SS | PIC16F716-I/SS | PIC16C712T-04I/SS | PIC16C711T-20I/SS |
|---|---|---|---|---|---|---|
| Package | SSOP-20 | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB Flash | 2 KB OTP | 1 KB OTP |
| CPU Speed | 20 MHz (200 ns instruction) | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 20 MHz |
| ADC | 4-channel 8-bit | 4-channel 8-bit | 4-channel 8-bit | 4-channel 8-bit (10-bit option) | 4-channel 8-bit | No ADC |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 68 bytes |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 |
| Temperature Range | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Memory Type | OTP (write-once) | OTP | OTP | Flash (re-programmable) | OTP | OTP |
| Lifecycle | Obsolete | Obsolete | Obsolete | Active | Obsolete | Obsolete |
主な差別化要因
- Recommended Microchip modern replacement （vs PIC16C715T-20I/SS vs PIC16F716-I/SS)
- Pin-compatible package with reduced memory （vs PIC16C715T-20I/SS vs PIC16C711T-20I/SS)
- Speed grade variants for power optimization （vs PIC16C715T-20I/SS vs PIC16C712T-04I/SS)
設計ノート
Decouple the VDD pin with a 0.1 uF ceramic capacitor placed within 5 mm of the IC, with a short trace to pin 20. Add a bulk 10 uF tantalum or aluminum electrolytic capacitor on the same power rail. The PIC16C715T-20I/SS operates from 2.5 V to 5.5 V; below 4.5 V the maximum oscillator frequency derates per the datasheet DC characteristics. For battery-powered designs, leverage the SLEEP mode (current drops to microampere range) and use the watchdog timer to wake the part periodically for ultra-low average power consumption.
Keep the oscillator traces (OSC1/OSC2) short and surround them with a ground guard ring to reduce EMI susceptibility. When using a crystal resonator, place the crystal and load capacitors within 5 mm of the OSC1/OSC2 pins. Route MCLR/VPP away from switching nodes and high-current loops; add a 10 kohm pull-up to VDD on MCLR. Exposed thermal pad on the SSOP-20 (if present on the specific variant) should be soldered to a copper pour connected to VSS for mechanical stability.
OTP memory can be programmed exactly once. Validate all firmware on a windowed (PIC16C715/JW) or flash-based equivalent (PIC16F716-I/SS) before committing to masked production parts. The PIC16F716-I/SS is pin-compatible and recommended for development. Do not exceed VDD of 5.5 V or the absolute maximum ratings; add a TVS diode on the VDD rail if the supply source is inductive. The configuration bits (fuses) control oscillator mode, watchdog enable, code protection, and brown-out reset - verify these match design intent before programming the OTP window, as they cannot be changed after programming.
Group the four analog input channels (RA0-RA3/AN0-AN3) on one side of the PCB to keep analog traces short and away from digital switching nodes. Use a separate analog ground island if possible, joining it to digital ground at a single point near the VSS pin. The ADC reference voltage (VREF) requires a low-impedance source; add a 0.1 uF ceramic bypass capacitor close to the VREF/RA3 pin. Avoid routing digital I/O traces directly over analog input traces to minimize crosstalk.
コンプライアンス情報
PIC16C715 is an obsolete OTP EPROM-based MCU; lead-free and RoHS status depend on specific date code and distributor lot. Legacy OTP families from Microchip were not originally designed for RoHS compliance, but later date codes may carry RoHS-compliant lead-free finishes. AEC-Q100 qualification is not applicable as the part is not marketed for automotive safety applications. Verify compliance per specific lot via manufacturer certificate of conformance (CoC) for production use.
