Readiness report
DPScope USB Oscilloscope · 2026-09-02 18:54 · complete · 35 searches, 1 pages fetched, est. $0.29
Cybersecurity — software & network: not checked
This report predates the cybersecurity (software & network) check, or the lab's snapshot doesn't record software dependencies yet.
Readiness: DPScope USB Oscilloscope
Verdict: Ready with caveats · 2026-09-02 · est. parts cost $65–$95
All functional integrated circuits, passives, and mechanical components can be procured from authorized distributors or verified retail channels. However, several caveats must be addressed before ordering: the dsPIC microcontroller part number in the snapshot is malformed and requires selecting the Skinny DIP package variant; the specified Murata trimmer capacitor is obsolete and requires a footprint-compatible substitute; the Murata ceramic resonator is flagged Not For New Designs (NFND); and the representative precision resistor and IC socket part numbers are out of stock or obsolete, requiring standard catalog drop-in replacements. This cold check establishes the initial baseline for future drift monitoring.
Action required
| Part | Problem | Recommended action |
|---|---|---|
| dsPIC30F2020-E/P | Invalid MPN; Microchip dsPIC30F2020 28-pin DIP devices use the /SP (Skinny DIP) package designation, not /P. |
Order active drop-in replacement DSPIC30F2020-20E/SP or DSPIC30F2020-30I/SP. |
| TZ03Z500E169B00 | Obsolete; zero stock globally across authorized distributors. | Substitute active through-hole trimmer capacitor EW Electronics GKG50015. |
| CSTLS16M0X53-B0 | Not For New Designs (NFND); impending supply chain obsolescence. | Sourcing is healthy today (>30,000 units in distribution), but prepare a board redesign or alternate clock source for future runs. |
| RNMF14FTC249K | Out of stock across all authorized distributors (19–21 week factory lead time). | Substitute standard in-stock axial 249 kΩ 1% 0.25 W resistors such as Stackpole RNF14FTD249K or Yageo MFR-25FTE52-249K. |
| 4828-3000-CP | Obsolete; zero stock globally. | Substitute standard active 28-pin 300 mil through-hole DIP socket Mill-Max 110-44-328-41-001000. |
Parts
Integrated Circuits
| Part | Spec/Package | Status | Stock | Price | Source |
|---|---|---|---|---|---|
| Microcontroller (dsPIC): dsPIC30F2020-E/P | DIP-28 (300 mil) | Invalid MPN | 0 | — | Microchip |
| Programmable Gain Amplifier (PGA1, PGA2): MCP6S22-I/P | DIP-8 | Active | 25 | $1.97 | DigiKey |
| Dual 12-Bit DAC (DAC1): MCP4822-E/P | DIP-8 | Active | 1,172 | $4.28 | DigiKey |
| Quad Op-Amp (OP1): MCP6024-I/P | DIP-14 | Active | 295 | $2.72 | DigiKey |
Passive Components
| Part | Spec/Package | Status | Stock | Price | Source |
|---|---|---|---|---|---|
| Precision Resistors (249 kΩ): RNMF14FTC249K | Axial 0207, 0.25 W, 1% | Active (Out of stock) | 0 | $0.01476 | DigiKey |
| Precision Resistors (9.1 kΩ): Axial metal film | Axial 0207, 0.25 W, 1% | not checked | — | — | — |
| General Resistors (470 Ω, 1 kΩ, 750 kΩ): CF14JT1K00 (rep.) | Axial 0207, 0.25 W, 5% | Active | 527,893 | $0.10 | DigiKey |
| Trimmer Resistors (VR1, VR2): 3362P-1-504LF | 500 kΩ, through-hole top adjust | Active | 869 | $1.23 | DigiKey |
| Ceramic Capacitors (0.1 µF rep.): K104K15X7RF53L2 | Radial, ≥16 V | Active | 32,668 | $0.27 | DigiKey |
| Ceramic Capacitors (22 pF, 47 pF, 100 pF): Radial MLCC/disc | Radial, ≥16 V | not checked | — | — | — |
| Trimmer Capacitors (C18, C19): TZ03Z500E169B00 | 10..60 pF, radial 2-pin | Obsolete | 0 | — | DigiKey |
| Electrolytic Capacitor (C9): ECA-1VHG101I | 100 µF, 35 V, radial 2.50 mm pitch | Active | 417 | $0.44 | DigiKey |
Discrete Semiconductors & Clocking
| Part | Spec/Package | Status | Stock | Price | Source |
|---|---|---|---|---|---|
| Protection Diodes (D1, D2, D3, D4): 1N914ATR | DO-35 axial | Active | 50,665 | $0.30 | DigiKey |
| Status Indicator (LED1): WP7113ID | 5 mm (T-1 3/4) red | Active | 145,555 | $0.21 | DigiKey |
| Ceramic Resonator (X1): CSTLS16M0X53-B0 | 16 MHz, 3-pin radial, 2.50 mm pitch | NFND | 13,806 | $0.34 | DigiKey |
Connectors & Hardware
| Part | Spec/Package | Status | Stock | Price | Source |
|---|---|---|---|---|---|
| BNC Connectors (J1, J2): 112408 | BNC female straight PCB | Active | 152 | $5.45 | DigiKey |
| USB Interface Board (J_USB): ShillehTek FT232RL | 6-pin 0.1" header, 5 V TTL, Mini-B | Active | In stock | $6.99 (2-pack) | ShillehTek |
| IC Sockets (28-pin): 4828-3000-CP | 28-pin DIP 300 mil | Obsolete | 0 | — | DigiKey |
| IC Sockets (8-pin x3, 14-pin x1): DIP sockets | 300 mil width | not checked | — | — | — |
| Enclosure: Serpac A21,BK | ABS black, 4.25" x 2.60" x 1.12" | Active | 298 | $12.79 | DigiKey |
| Rubber Feet: Self-adhesive standoffs | 4x 5 mm dia. | not checked | — | — | — |
| Jumper (JP_CAL): Shorting block | 2-pin 0.1" pitch | not checked | — | — | — |
| Probe Cables: BNC-to-Microhook / scope probes | Standard BNC male | not checked | — | — | — |
| USB Cable: Monoprice USB-A to Mini-B 2.0 Cable | 5-pin Mini-B, 28/24 AWG data cable | Active | In stock | $1.89 | Monoprice |
Substitutes
| For part | Substitute | Differences | Verified | Judgment |
|---|---|---|---|---|
| dsPIC30F2020-E/P | Microchip DSPIC30F2020-20E/SP | Corrects invalid /P suffix to 28-SPDIP (0.300", 7.62 mm pitch); 20 MIPS, -40°C to +125°C extended temperature rating. |
Package + lead spacing/width (28-DIP 0.300" / 7.62 mm via DigiKey parametrics), supply rail (5 V logic), core architecture (dsPIC30F2020) | Acceptable drop-in replacement (exact physical/electrical component intended). |
| dsPIC30F2020-E/P | Microchip DSPIC30F2020-30I/SP | Corrects invalid /P suffix to 28-SPDIP (0.300", 7.62 mm pitch); 30 MIPS (exceeds 20 MIPS), -40°C to +85°C industrial temperature rating. |
Package + lead spacing/width (28-DIP 0.300" / 7.62 mm via DigiKey parametrics), supply rail (5 V logic), core architecture (dsPIC30F2020) | Acceptable drop-in replacement. |
| RNMF14FTC249K | Stackpole RNF14FTD249K | Standard Axial 0207 body (2.35 mm Dia x 6.35 mm L vs 1.78 mm x 3.30 mm mini); identical 249 kΩ, 0.25 W, 1%. | Package (Axial 0207 equivalent), resistance (249 kΩ), tolerance (1%), power (0.25 W) via DigiKey parametrics | Acceptable drop-in replacement. |
| RNMF14FTC249K | Yageo MFR-25FTE52-249K | Standard Axial 0207 body (2.40 mm Dia x 6.30 mm L); identical 249 kΩ, 0.25 W, 1%. | Package (Axial 0207 equivalent), resistance (249 kΩ), tolerance (1%), power (0.25 W) via DigiKey parametrics | Acceptable drop-in replacement. |
| TZ03Z500E169B00 | EW Electronics GKG50015 | 10 ~ 50 pF tuning range (covers target range; original was 6 ~ 50 pF); 100 V rating (exceeds 50 V rating); 6.00 mm diameter matches original; height 5.00 mm (vs 5.30 mm). | Mounting type (through-hole), diameter (6.00 mm), height (5.00 mm), capacitance range (10–50 pF), voltage rating (100 V) via DigiKey parametrics; lead pitch not stated in DigiKey parameters | Acceptable replacement. |
| 4828-3000-CP | Mill-Max 110-44-328-41-001000 | Standard 28-position through-hole DIP socket, 0.100" (2.54 mm) mating and post pitch, 300 mil row spacing. | Package/case (28-DIP 300 mil), mating pitch (0.100" / 2.54 mm), post pitch (0.100"), mounting (through-hole) via DigiKey parametrics | Acceptable drop-in replacement. |
Instructors should verify any substitute against its datasheet before ordering.
Cybersecurity — software & network
Software dependencies were not recorded in this lab's snapshot (it predates the software section). Re-ingest the lab to check them.
Other dependencies
- Project Documentation and Download Repository: Project website (
http://www.dpscope.com) hosting build documentation, schematics, and configuration files. Status: not checked. - PCB Fabrication Data: Gerber files for 2-layer PCB sized to fit the Serpac A-21 enclosure (~4.25" x 2.25"). Status: not checked.
- FTDI EEPROM Configuration Files: MPROG template file required to program the hardware serial identifier (FTE0ZZ3K) into generic FT232R breakout boards. Status: not checked.
Watch list
- Murata CSTLS16M0X53-B0 Resonator: Flagged as Not For New Designs (NFND). While authorized distributor inventory currently exceeds 30,000 units, Murata has ceased recommendation for new production. Future builds will eventually require migrating to an SMD resonator or a crystal oscillator with discrete capacitors.
- Microchip MCP6S22-I/P Programmable Gain Amplifier: Factory stock at primary distributors is low (DigiKey has 25 units in stock, though broader distributors hold healthy secondary inventory). Sibling variant MCP6S92-I/P is completely unavailable across authorized distribution.
- Through-Hole Trimmer Capacitors: Major manufacturers (including Murata) have discontinued through-hole ceramic trimmer capacitor lines. Inventory for through-hole variants (such as EW Electronics GKG series) should be monitored before running large lab sections.
- USB Interface Hardware: Mini-B USB cables and breakout modules are becoming less prevalent as USB-C predominates. Ensure replacement USB boards maintain 5 V logic levels with identical 6-pin pinouts (DTR, RX, TX, VCC, CTS, GND) and cables carry 28/24 AWG data conductors rather than power-only wiring.