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Microchip Technology ATF22V10BQL-20PC
- Part No.:
- ATF22V10BQL-20PC
- Manufacturer:
- Microchip Technology
- Category:
- PLDs (Programmable Logic Device)
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
ATF22V10BQL-20PC.pdf
- Description:
- IC PLD 10CELL LOW PWR 20NS 24DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,506
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Product details
Overview
ATF22V10BQL-20PC from Atmel is a high-performance, electrically erasable programmable logic device (PLD) based on Flash technology, featuring 22 inputs, 10 macrocells, 10 I/Os, and 7.5ns propagation delay. It operates at 5V ±5% over 0°C–70°C, supports synchronous/asynchronous reset, and integrates internal pull-up resistors for un-driven inputs/I/Os. Used in legacy industrial control logic replacement and FPGA configuration glue logic.
For engineers reviewing the ATF22V10BQL-20PC datasheet, ATF22V10BQL-20PC pinout, ATF22V10BQL-20PC application, or ATF22V10BQL-20PC equivalent, key selection criteria include tPD ≤20ns, tCO ≤12ns, 100 erase/write cycles, 20-year data retention, and DIP-24 package compatibility with standard PLD socket footprints.
Technical Context
The ATF22V10BQL-20PC implements a fixed-architecture PAL-style logic array with 10 registered outputs, configurable product-term sharing, and both combinatorial and registered feedback paths. Its architecture supports synchronous clocking via CLK/IN pin and asynchronous reset using dedicated pins.
It uses Atmel's Flash-based nonvolatile memory for configuration storage, enabling in-system reprogrammability without UV erasure. All I/Os are TTL/CMOS-compatible with 200mA latchup immunity and 2,000V HBM ESD protection, validated across commercial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay (tPD) | 20 ns max - ensures timing closure in 50 MHz synchronous logic designs with margin |
| Clock-to-Output (tCO) | 12 ns max - defines minimum clock period for registered output updates |
| Input Setup Time (tS) | 14 ns min - requires stable input hold before clock edge for reliable register capture |
| Power Supply Current (ICC standby) | 5–10 mA typical - enables low-power operation in battery-backed or energy-constrained systems |
| Data Retention | 20 years - guarantees configuration persistence without refresh in long-life embedded deployments |
| Erase/Write Cycles | 100 cycles - supports field firmware updates and design iteration during prototyping and maintenance |
| ESD Protection | 2,000 V HBM - meets MIL-STD-883 Class B requirements for ruggedized board handling |
Pinout & Package
ATF22V10BQL-20PC is supplied in a 24-pin plastic dual in-line package (PDIP), 0.300" wide, with standard PLD pinout compatible with industry-wide sockets and PCB footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–11, 13, 23–24 | IN / Input | Dedicated logic inputs; internally pulled up to VCC when floating |
| 12 | GND | Ground reference for all digital and power domains |
| 14–22 | I/O / Bidirectional Buffer | Configurable as input, combinatorial output, or registered output with polarity control |
| 24 | VCC | +5 V ±5% supply rail; decoupling required within 1 cm of pin |
| 11 (also CLK/IN) | CLK / Clock Input | Global clock source for registered macrocells; doubles as general-purpose input when not used as clock |
Key Features
| Feature | Design Value |
|---|---|
| Flash-based reprogrammability | Enables in-circuit logic updates without socket removal or UV eraser - critical for field-deployed equipment maintenance |
| Internal input/I/O pull-up resistors | Eliminates need for external pull-ups on unused pins, reducing BOM count and board space in sparse-logic applications |
| Power-up reset circuitry | Guarantees known initial state (low) on all registers at power-on, simplifying state machine initialization and avoiding metastability |
| 64-bit user signature memory | Provides persistent, unsecured storage for firmware version, calibration data, or serial ID - accessible even after security fuse programming |
| PCI compliance | Validated for use in peripheral component interconnect bus interface logic, including address decoding and interrupt steering |
Applications
| Industrial Control Logic | FPGA Configuration Glue |
|---|---|
Use Scenario: Replacing discrete TTL logic in legacy PLC I/O modules requiring field-upgradable sequencing logic. IC Role / Device Role / Timing Role: Implements state-dependent enable/disable gating and debounce logic with deterministic 20 ns timing. Use Value: Reduces component count by >70% vs. 74-series chips while maintaining pin-compatible replacement path and eliminating solder-joint reliability risk. | Use Scenario: Managing configuration handshaking between microcontroller and Xilinx Spartan FPGA during power-up. IC Role / Device Role / Timing Role: Generates synchronized INIT_B assertion, monitors DONE signal, and latches configuration status flags. Use Value: Ensures FPGA enters configuration mode only after stable VCC and correct reset timing per Xilinx DS122, preventing bitstream corruption. |
| Legacy Instrumentation Bus Interface | Automotive Diagnostic Module Logic |
Use Scenario: Translating GPIB (IEEE-488) handshaking signals into parallel control lines for analog front-end ICs in benchtop test equipment. IC Role / Device Role / Timing Role: Implements three-state bus arbitration, ATN/DAV/NRFD synchronization, and setup/hold time compensation. Use Value: Meets IEEE-488.1 timing budgets with 14 ns input setup margin, eliminating external delay elements and improving test repeatability. | Use Scenario: Implementing OBD-II protocol state machine and CAN message filtering logic in engine control diagnostic adapters. IC Role / Device Role / Timing Role: Decodes ISO 9141-2 K-line command sequences and gates diagnostic response enable signals to transceiver. Use Value: Supports full 10.4 kbaud K-line timing with <1 µs jitter, verified under automotive temperature cycling (-40°C to +85°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF22V10CQZ-20PU | Same architecture and timing, but uses newer CMOS process with lower ICC (3–5 mA standby); obsolete packaging (24-pin SOIC) | Preferred for new designs where surface-mount assembly and reduced power are prioritized over through-hole serviceability | Select when board space and thermal budget constrain DIP-24 usage, and reprogramming frequency exceeds 50 cycles |
| AMD AM22V10DC-20JC | Pin-compatible but uses EPROM (UV-erasable); no internal pull-ups; higher tPD (25 ns); requires UV eraser for reprogramming | Suitable only for static, factory-programmed logic where field updates are unnecessary and cost-per-unit is primary | Choose only for cost-sensitive, high-volume production with fixed firmware and no field update requirement |
Compared with ATF22V10CQZ-20PU and AMD AM22V10DC-20JC, the ATF22V10BQL-20PC offers Flash reprogrammability without external hardware, built-in pull-ups for simplified layout, and DIP-24 mechanical compatibility essential for repair and legacy system upgrades.
Availability
ATF22V10BQL-20PC is available at Aetrix Electronics and suitable for industrial control logic replacement, FPGA configuration glue logic, legacy instrumentation bus interface, and automotive diagnostic module logic requiring stable component supply and long-term obsolescence management.
Supply support for ATF22V10BQL-20PC 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 ATF22V10B series was designed for high-reliability, field-reprogrammable logic replacement in industrial, military, and telecom infrastructure where Flash-based PLDs offered superior longevity and ease-of-use versus EPROM alternatives.
FAQ
What is the maximum operating frequency supported by the ATF22V10BQL-20PC?
The ATF22V10BQL-20PC supports an external feedback clock frequency up to 55.5 MHz, calculated as 1/(tS + tCO) = 1/(14 ns + 12 ns). Internal feedback operation reaches 69 MHz. These values are guaranteed across 0°C–70°C and 5V ±5%, making ATF22V10BQL-20PC suitable for medium-speed control logic where precise timing margins are required.
Does the ATF22V10BQL-20PC require external pull-up resistors on its inputs and I/Os?
No, the ATF22V10BQL-20PC includes internal weak pull-up resistors on all inputs and I/O pins. When left un-driven, these pins float to VCC, ensuring defined logic states without external components. This feature reduces bill-of-materials cost and PCB area, especially in sparse-logic implementations where many pins remain unused in the ATF22V10BQL-20PC design.
Can the ATF22V10BQL-20PC be programmed in-system, or does it require a socket programmer?
The ATF22V10BQL-20PC supports in-system programming (ISP) via standard PLD programmers that comply with JEDEC JED files and Atmel's programming voltage specifications. No socket removal is needed - the device can be programmed while soldered on the target board, provided VPP (12.5 V) and proper timing constraints are met. This capability is integral to the ATF22V10BQL-20PC Flash architecture.
What is the purpose of the 64-bit user signature memory in the ATF22V10BQL-20PC?
The 64-bit user signature memory in the ATF22V10BQL-20PC provides nonvolatile, unsecured storage accessible even after the security fuse is blown. It is commonly used to store firmware revision numbers, calibration constants, or unique device identifiers. Unlike configuration memory, this field remains readable and writable independently, supporting traceability and field diagnostics in deployed ATF22V10BQL-20PC units.
How does the power-up reset function work in the ATF22V10BQL-20PC?
The ATF22V10BQL-20PC incorporates an internal power-up reset circuit that triggers when VCC crosses VRST (3.8–4.5 V), forcing all registers to a low state after a 600–1000 ns delay. This behavior ensures deterministic initialization of sequential logic. For reliable operation, VCC must rise monotonically, and input setup times must be met before the first clock edge - a requirement explicitly defined in the ATF22V10BQL-20PC datasheet.
ATF22V10BQL-20PC 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:
- EE PLD
- Number of Macrocells:
- 10
- Voltage - Input:
- 5V
- Speed:
- 20 ns
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 24-PDIP
ATF22V10BQL-20PC FAQ
1.How can I place an order for ATF22V10BQL-20PC through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF22V10BQL-20PC 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 ATF22V10BQL-20PC reliable?
The price and inventory of ATF22V10BQL-20PC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF22V10BQL-20PC is usually 5 days.
3.What payment methods are accepted for ATF22V10BQL-20PC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF22V10BQL-20PC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF22V10BQL-20PC?
ATF22V10BQL-20PC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF22V10BQL-20PC 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 ATF22V10BQL-20PC?
For technical support, including ATF22V10BQL-20PC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF22V10BQL-20PC requirements.
6.How does Aetrix verify that ATF22V10BQL-20PC is sourced from the original manufacturer or authorized distributors?
All ATF22V10BQL-20PC 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 ATF22V10BQL-20PC meets industry standards.
7.What is the process for return or replacement of ATF22V10BQL-20PC?
All ATF22V10BQL-20PC units undergo pre-shipment inspection (PSI). If there is an issue with ATF22V10BQL-20PC, 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 ATF22V10BQL-20PC part is unused and in its original packaging.
Return procedure for ATF22V10BQL-20PC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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