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Microchip Technology AT22LV10-25PI
- Part No.:
- AT22LV10-25PI
- Manufacturer:
- Microchip Technology
- Category:
- PLDs (Programmable Logic Device)
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
AT22LV10-25PI.pdf
- Description:
- IC PLD 10MC 25NS 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,355
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Product details
Overview
AT22LV10-25PI from Atmel is a low-voltage UV-erasable programmable logic device (PLD) based on the 22V10 architecture, featuring 10 macrocells, 22 inputs, and 10 I/O pins. It operates across 3.0V–5.5V supply, delivers ≤25 ns propagation delay at VCC = 3.0V, and supports industrial temperature range (–40°C to +85°C) in 24-pin PDIP package. It is used in legacy digital control logic, state machine initialization, and glue logic replacement in embedded instrumentation.
For engineers reviewing the AT22LV10-25PI datasheet, AT22LV10-25PI pinout, AT22LV10-25PI application, or AT22LV10-25PI equivalent, this page provides verified timing parameters, confirmed pin functions, industrial-grade DC/AC specs, reprogrammability assurance, and direct alternatives for 22V10-compatible PLD migration paths.
Technical Context
The AT22LV10-25PI implements a fixed 22-input × 10-output PLD architecture with eight to sixteen product terms per output, plus two global product terms for synchronous preset and asynchronous reset shared across all ten registers. All registers power-up cleared and support asynchronous preload via dedicated voltage-level signaling on I/O pins.
It uses low-power CMOS technology with TTL/CMOS-compatible I/Os, ±10 µA max leakage, 200 mA latchup immunity, and 2000V HBM ESD protection. Its UV-erasable fuse-based configuration enables full reprogramming and secure pattern protection via a dedicated security fuse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPD) | ≤25 ns max at VCC = 3.0V - ensures reliable timing in 40 MHz-equivalent synchronous logic paths |
| Supply Voltage Range | 3.0V to 5.5V - enables direct interface with 3.3V and 5V logic families without level shifters |
| Input/Output Leakage | ≤10 µA max - minimizes standby current in battery-backed systems and reduces signal integrity noise |
| Power Supply Current (ICC) | 20 mA typical / 50 mA max at VCC = 3.6V (industrial) - defines worst-case thermal budget for PCB layout |
| Operating Temperature | –40°C to +85°C - qualified for industrial control, automotive body electronics, and factory automation |
| Package Type | 24P3: 24-lead PDIP, 0.300" wide - compatible with through-hole assembly and legacy socketing infrastructure |
| Logic Architecture | 22V10-compatible with 10 macrocells - preserves design reuse of existing fuse map files and development tools |
Pinout & Package
AT22LV10-25PI is supplied in a 24-lead plastic dual in-line package (PDIP), designated 24P3 per Atmel's ordering matrix. Pin 1 is marked by a notch or dot; pin numbering proceeds counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–10, 12–22 | IN / I/O | 22 total input-capable pins; pins 12–22 serve as bidirectional I/O with configurable polarity and registered/non-registered modes |
| 11 | GND | Ground reference for all internal logic and I/O buffers; must be low-impedance connection |
| 23 | VCC | Primary power supply (3.0V–5.5V); decoupling capacitor required within 1 cm |
| 24 | CLK/IN | Dedicated clock input or general logic input; rising-edge triggered register updates when used as clock |
Key Features
| Feature | Design Value |
|---|---|
| UV-erasable reprogrammability | 100% tested for fuse programming; enables iterative logic revision without component replacement |
| Asynchronous power-up reset | All 10 registers initialize to low state at VCC > 2.5V - guarantees deterministic state machine startup |
| Register preload capability | Forces high/low register states via VIH/VIL on I/O pins during 11.5–13V pulse - simplifies boundary-scan test sequencing |
| Security fuse | Prevents unauthorized readback of programmed fuse pattern - protects proprietary logic configurations |
| 2000V HBM ESD rating | Robust handling during manual assembly and field service - eliminates need for external protection diodes |
Applications
| Industrial Control Logic | Legacy System Glue Logic |
|---|---|
|
Use Scenario: Replacing discrete TTL SSI/MSI logic in PLC I/O modules and motor drive interface boards. IC Role / Device Role / Timing Role: Configurable combinatorial and registered logic block implementing address decoding, status multiplexing, and handshake generation. Use Value: Reduces component count by >70% versus 74-series equivalents while maintaining pin-compatible board layout and industrial temperature operation. |
Use Scenario: Upgrading aging minicomputer backplane control logic where original PALs are obsolete. IC Role / Device Role / Timing Role: Drop-in 22V10 functional replacement with identical macrocell structure and JEDEC-standard fuse mapping. Use Value: Enables continued production using existing programming hardware and JEDEC JED files without redesign or toolchain change. |
| Test Equipment State Machines | Battery-Powered Instrumentation |
|
Use Scenario: Sequencing calibration routines and sensor sampling states in portable multimeters and oscilloscope front-ends. IC Role / Device Role / Timing Role: Synchronous finite-state controller managing ADC trigger timing, display update cycles, and button debounce logic. Use Value: 25 ns timing margin supports 30+ MHz state transitions; low ICC (20 mA typ @ 3.6V) extends battery life in handheld units. |
Use Scenario: Power management and mode selection logic in medical glucose meters and portable ECG monitors. IC Role / Device Role / Timing Role: Low-voltage glue logic coordinating microcontroller wake-up events, sensor enable signals, and LCD contrast control. Use Value: 3.0V minimum VCC allows direct operation from single Li-ion cell (3.0–4.2V); ±10 µA leakage prevents battery drain during sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar programmable logic device applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT22LV10-25JI | Same die, 28-lead PLCC (28J) package instead of PDIP; identical AC/DC specs and timing | Requires surface-mount assembly and different footprint; no through-hole option | Select when board space is constrained and SMT process is available |
| AT22LV10L-25PI | Lower ICC (1 mA typ @ 3.3V vs. 20 mA typ @ 3.6V); same 25 ns tPD but optimized for ultra-low static power | Better suited for always-on battery systems; trade-off is reduced drive strength (6 mA vs. 8 mA IOL) | Choose for <10 µA standby current targets; verify load compatibility with reduced output drive |
Compared with AT22LV10-25JI and AT22LV10L-25PI, the AT22LV10-25PI uniquely balances industrial temperature reliability, through-hole manufacturability, and mid-range power-performance - making it optimal for cost-sensitive, serviceable industrial hardware where rework and long-term component availability are critical.
Availability
AT22LV10-25PI is available at Aetrix Electronics and suitable for industrial control logic, legacy system glue logic, and battery-powered instrumentation requiring stable component supply over extended production lifecycles.
Supply support for AT22LV10-25PI includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Atmel Corporation was a U.S.-based semiconductor company specializing in microcontrollers, nonvolatile memory, and programmable logic devices before its acquisition by Microchip Technology in 2016.
The AT22LV10 family was designed as a low-voltage, UV-erasable upgrade path for 22V10-based systems, targeting industrial and instrumentation applications where reprogrammability, temperature resilience, and legacy compatibility were essential.
FAQ
What is the maximum propagation delay specification for AT22LV10-25PI?
The AT22LV10-25PI has a maximum propagation delay (tPD) of 25 ns when VCC = 3.0V, measured from input or feedback to non-registered output. This value is guaranteed across the full industrial temperature range (–40°C to +85°C) and defines the upper timing bound for combinational logic paths implemented in the device.
Does AT22LV10-25PI support 3.3V-only operation without level shifting?
Yes, AT22LV10-25PI operates fully across 3.0V to 5.5V, including nominal 3.3V systems. Its inputs are TTL/CMOS-compatible, and outputs deliver full CMOS voltage levels (VOH ≥ VCC – 0.3V, VOL ≤ 0.35V at IOL = 6 mA), eliminating need for external level translators in 3.3V designs.
How is the security fuse implemented in AT22LV10-25PI?
The AT22LV10-25PI includes a dedicated security fuse that, once blown, prevents readback of the programmed fuse pattern. This physical fuse is independent of the logic array fuses and is activated during programming - ensuring intellectual property protection for custom logic configurations stored in the device.
Can AT22LV10-25PI be used as a direct replacement for standard 22V10 devices?
AT22LV10-25PI is functionally and architecturally identical to the industry-standard 22V10, supporting the same JEDEC fuse map format and macrocell structure. However, its lower VCC minimum (3.0V vs. 4.75V) and UV-erasable nature require verification of system power rail compatibility and programming tool support before drop-in use.
What package type does AT22LV10-25PI use, and is it RoHS-compliant?
AT22LV10-25PI uses the 24P3 package: a 24-lead, 0.300" wide plastic dual in-line package (PDIP). Per Atmel's 1999 documentation, this variant predates RoHS requirements; leaded solder compatibility is confirmed, but formal RoHS certification is not documented for this specific date-code batch.
AT22LV10-25PI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- 22V10
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- EPLD
- Number of Macrocells:
- 10
- Voltage - Input:
- 3V
- Speed:
- 25 ns
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-PDIP
AT22LV10-25PI FAQ
1.How can I place an order for AT22LV10-25PI through Aetrix?
Please submit a Request for Quotation (RFQ) for AT22LV10-25PI on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT22LV10-25PI reliable?
The price and inventory of AT22LV10-25PI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT22LV10-25PI is usually 5 days.
3.What payment methods are accepted for AT22LV10-25PI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT22LV10-25PI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT22LV10-25PI?
AT22LV10-25PI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT22LV10-25PI order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT22LV10-25PI?
For technical support, including AT22LV10-25PI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT22LV10-25PI requirements.
6.How does Aetrix verify that AT22LV10-25PI is sourced from the original manufacturer or authorized distributors?
All AT22LV10-25PI products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT22LV10-25PI meets industry standards.
7.What is the process for return or replacement of AT22LV10-25PI?
All AT22LV10-25PI units undergo pre-shipment inspection (PSI). If there is an issue with AT22LV10-25PI, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT22LV10-25PI part is unused and in its original packaging.
Return procedure for AT22LV10-25PI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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