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PIC14000-20I/SS
Microchip Technology
IC MCU 8BIT 7KB OTP 28SSOP
2554 Pcs New Original In Stock
PIC PIC® 14 Microcontroller IC 8-Bit 20MHz 7KB (4K x 14) OTP 28-SSOP
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5.0 / 5.0
- (421 Ratings)
PIC14000-20I/SS
Product Overview
1299566
DiGi Electronics Part Number
PIC14000-20I/SS-DGManufacturer
Microchip Technology
PIC14000-20I/SS
Description
IC MCU 8BIT 7KB OTP 28SSOPInventory
2554 Pcs New Original In Stock
PIC PIC® 14 Microcontroller IC 8-Bit 20MHz 7KB (4K x 14) OTP 28-SSOP
Quantity
Minimum 1
Minimum 1
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PIC14000-20I/SS Technical Specifications
Category
Embedded, Microcontrollers
Packaging
-
Series
PIC® 14
Product Status
Active
DiGi-Electronics Programmable
Verified
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I2C
Peripherals
POR, Temp Sensor, WDT
Number of I/O
20
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
EEPROM Size
-
RAM Size
192 x 8
Voltage - Supply (Vcc/Vdd)
2.7V ~ 6V
Data Converters
Slope A/D
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Supplier Device Package
28-SSOP
Package / Case
28-SSOP (0.209", 5.30mm Width)
Base Product Number
PIC14000
Datasheet & Documents
HTML Datasheet
PIC14000-20I/SS-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.31.0001
Additional Information
Other Names
PIC14000-20I/SS-NDR
Standard Package
47
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
항상 친절하고 전문적인 고객 지원 덕분에 마음 놓고 거래할 수 있습니다.
de desembre 02, 2025
Support staff are attentive and resolve issues swiftly.
de desembre 02, 2025
Their transparent pricing and reliable after-sales support set them apart.
de desembre 02, 2025
Tracking updates from DiGi Electronics arrive promptly and are very descriptive.
de desembre 02, 2025
Consistently good prices and eco-friendly packaging—highly trusted brand.
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Frequently Asked Questions (FAQ)
Can the PIC14000-20I/SS be used as a drop-in replacement for the older PIC16F57 in a legacy 5V industrial control board, and what design risks should I evaluate?
The PIC14000-20I/SS is not a direct drop-in replacement for the PIC16F57 due to fundamental architectural and pinout differences—the PIC14000 uses an 8-bit Harvard architecture with OTP memory and a different instruction set, while the PIC16F57 is a baseline 12-bit core. Although both support 5V operation and come in 28-pin SSOP packages, the pin functions (e.g., I/O assignments, oscillator pins, and power sequencing) differ significantly. Additionally, the PIC14000-20I/SS lacks EEPROM and has only 192 bytes of RAM versus the PIC16F57’s 25 bytes of RAM and no EEPROM either, but software compatibility is not guaranteed. You must recompile and retest firmware, verify I/O mapping, and ensure timing loops account for the 20MHz internal oscillator vs. external crystal requirements. Always validate reset circuit compatibility and watchdog timer behavior before deployment.
What are the key reliability concerns when using the PIC14000-20I/SS in an automotive under-hood application operating near its -40°C to 85°C limit?
While the PIC14000-20I/SS is rated for -40°C to 85°C, sustained operation near thermal extremes—especially in under-hood environments where ambient temperatures can exceed 105°C under load—introduces reliability risks. The internal oscillator accuracy degrades at temperature extremes, potentially affecting I2C timing and slope A/D conversions. OTP memory is generally robust, but repeated thermal cycling may accelerate electromigration in bond wires over time. Ensure adequate PCB thermal management, avoid placing the device near heat sources, and consider derating supply voltage to 4.5V or lower at high temps to reduce junction heating. Also, validate long-term firmware stability with watchdog resets and brown-out detection enabled, as POR behavior can vary near voltage thresholds under thermal stress.
How does the slope A/D converter in the PIC14000-20I/SS compare to a successive approximation register (SAR) ADC like in the PIC16F88, and when should I avoid using it for sensor interfacing?
The slope A/D converter in the PIC14000-20I/SS is significantly slower and less precise than the 10-bit SAR ADC in the PIC16F88. Slope conversion relies on charging/discharging a capacitor and measuring time, making it sensitive to noise, temperature drift, and component tolerances. It’s suitable only for low-bandwidth, non-critical analog sensing (e.g., thermistor-based temperature monitoring with slow updates). Avoid using it for applications requiring fast sampling (>100 SPS), high resolution, or dynamic signal tracking—such as motor current sensing or audio feedback. For better performance, consider adding an external SAR ADC (e.g., MCP3201) or upgrading to a PIC with integrated SAR ADC like the PIC16F18326, especially if your design demands accuracy better than ±2–3 LSB.
Is it safe to run the PIC14000-20I/SS at 2.7V in a battery-powered IoT node with fluctuating supply due to load spikes, and how does this affect I2C communication?
Running the PIC14000-20I/SS at 2.7V is within spec, but marginal operation near the lower Vdd limit increases risk during voltage droops from load spikes (e.g., radio TX bursts). At 2.7V, the internal oscillator may become unstable, and I2C timing—especially rise times on open-drain lines—can violate t<sub>HD;STA</sub> and t<sub>SU;STA</sub> requirements if pull-up resistors are too weak. Use stronger pull-ups (e.g., 1.5kΩ instead of 4.7kΩ) and ensure bus capacitance stays below 200pF. Enable the Power-On Reset (POR) and monitor Vdd with the internal voltage reference if available. For critical deployments, add a small decoupling capacitor (100nF ceramic + 10µF bulk) close to Vdd and consider a supervisor IC to assert reset during brownouts below 2.5V.
Can I replace a failed PIC14000-20I/SS in a field-deployed system with a newer Flash-based PIC like the PIC16F15213, and what firmware and hardware changes are required?
Replacing the OTP-based PIC14000-20I/SS with the Flash-based PIC16F15213 is technically feasible but requires significant firmware and hardware validation. The PIC16F15213 uses a newer enhanced mid-range core with different instruction timing, peripheral registers, and memory mapping—your existing assembly or C code will not compile without modification. The PIC16F15213 also has more RAM (512 bytes) and Flash (4KB), but different I/O pinouts and peripheral configurations (e.g., no built-in slope ADC). You’ll need to reconfigure the oscillator settings, update I2C initialization, and possibly revise analog sensing logic. Additionally, the PIC16F15213 supports lower voltage operation (1.8V), so verify compatibility with your 2.7–6V system. Always perform full functional testing, especially for timing-critical loops and interrupt handling, before field rollout.
Quality Assurance (QC)
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PIC14000-20I/SS CAD Models
Microchip Technology PIC14000-20I/SS PCB symbols & footprints
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