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Microchip Technology ATF16V8BQ-10PC
- Part No.:
- ATF16V8BQ-10PC
- Manufacturer:
- Microchip Technology
- Category:
- PLDs (Programmable Logic Device)
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
ATF16V8BQ-10PC.pdf
- Description:
- IC PLD 8CELL QTR PWR 10NS 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,148
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Product details
Overview
ATF16V8BQ-10PC from Atmel is a high-speed, electrically-erasable programmable logic device (PLD) in 20-pin PDIP package, featuring 7.5 ns maximum pin-to-pin delay, 35 mA standby current, and 40 mA active current at 5 V. It supports registered, complex, and simple configuration modes to emulate legacy PAL devices including 16R8, 16L8, and 10L8-used in legacy industrial control logic replacement and board-level glue logic consolidation.
For engineers reviewing the ATF16V8BQ-10PC datasheet, ATF16V8BQ-10PC pinout, ATF16V8BQ-10PC application, or ATF16V8BQ-10PC equivalent, key selection criteria include its Flash-based reprogrammability, 20-year data retention, PCI-compliance, industrial temperature support (when derated), and macrocell-level OE/product-term control for combinatorial or registered logic synthesis.
Technical Context
The ATF16V8BQ-10PC implements an 8-macrocell architecture with configurable logic blocks, each supporting up to eight product terms. Its three software-selectable operating modes-registered, complex, and simple-determine pin allocation (e.g., pins 1 and 11 fixed as CLK/OE in registered mode; repurposed as inputs in complex/simple modes) and feedback routing (e.g., pins 12/19 disabled for feedback in complex mode).
It uses Atmel's Flash memory technology for nonvolatile configuration storage, enabling 100 erase/write cycles and 20-year data retention. Input and I/O pull-up resistors ensure defined logic states during floating conditions, and CMOS/TTL-compatible I/Os support direct interfacing with legacy 5 V logic families without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Pin-to-pin Delay | 7.5 ns - enables reliable operation in 68 MHz external feedback clock domains |
| Standby Current (ICC) | 35 mA at 5 V - reduces system power vs. standard ATF16V8B (55 mA) |
| Active Current (ICC2) | 40 mA at 15 MHz - supports moderate-frequency state machine or bus interface logic |
| Operating Voltage | 5 V ± 5% (commercial) - compatible with standard TTL/CMOS 5 V rails |
| Temperature Range | 0°C to 70°C - validated for commercial-grade embedded control applications |
| Data Retention | 20 years - ensures long-term configuration stability in unpowered systems |
| Erase/Write Cycles | 100 - sufficient for design iteration and field firmware updates |
Pinout & Package
ATF16V8BQ-10PC is supplied in a 20-lead, 0.300" wide plastic dual-inline package (PDIP), JEDEC MS-001 AD compliant, with 2.54 mm lead pitch and through-hole mounting.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/CLK | Shared input/clock pin - functions as global clock in registered mode; general input otherwise |
| 2–9 | I1–I8 | Dedicated logic inputs - feed AND-array for product term generation |
| 10 | GND | Ground reference - required for stable biasing of internal logic and I/O buffers |
| 11 | I9/OE | Input 9 / Output Enable - dual-function pin; controls all I/O outputs when used as OE |
| 12–19 | I/O1–I/O8 | Bi-directional macrocell I/Os - configurable as input, combinatorial output, or registered output |
| 20 | VCC | +5 V supply - powers core logic and I/O drivers; requires local decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Flash-based reprogrammability | Enables in-system logic updates without socket removal or UV erasure |
| Three auto-configurable modes | Eliminates need for hardware mode straps; compiler selects registered/complex/simple based on register/OE usage |
| Internal input/I/O pull-ups | Prevents floating inputs in unconnected or tri-stated states, reducing external resistor count |
| Power-up reset | Guarantees known low-state register initialization for deterministic state machine startup |
| 64-bit user signature memory | Stores revision, project ID, or calibration data-accessible even after security fuse programming |
Applications
| Industrial Control Logic Replacement | Legacy System Glue Logic Consolidation |
|---|---|
Use Scenario: Replacing obsolete 16R8 or 16L8 PALs in aging PLC I/O modules and motor controller PCBs. IC Role / Device Role / Timing Role: Configurable combinatorial or registered logic block implementing address decoding, signal conditioning, and state sequencing. Use Value: Extends service life of legacy equipment using drop-in-compatible pinout and identical JEDEC file support for existing compilers. | Use Scenario: Integrating discrete NAND/NOR gates and flip-flops into single-chip logic on retro-computing or test instrumentation boards. IC Role / Device Role / Timing Role: Universal glue logic element performing bus arbitration, handshake generation, and status multiplexing. Use Value: Reduces component count and board area while maintaining 5 V TTL compatibility and sub-10 ns timing margins. |
| PCI-Compliant Interface Logic | Embedded Bootloader Configuration Logic |
Use Scenario: Implementing PCI bus control signals (IRDY#, TRDY#, DEVSEL#) in add-in cards requiring strict timing compliance. IC Role / Device Role / Timing Role: Timing-critical synchronous logic block synchronized to PCI clock with guaranteed tCO ≤ 7 ns. Use Value: Meets PCI specification setup/hold and propagation requirements without external timing compensation. | Use Scenario: Managing boot-mode selection, flash address remapping, and reset vector steering in microcontroller-based systems. IC Role / Device Role / Timing Role: Nonvolatile configuration manager that initializes before CPU execution begins. Use Value: Leverages power-up reset behavior and 20-year data retention to ensure consistent boot behavior across decades of field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ATF16V8B-10PC | Higher standby current (55 mA vs. 35 mA); same speed grade and pinout | Suitable where lower active power is not critical and legacy B-version toolchains are mandated | Select only if ATF16V8BQ-10PC availability is constrained and power budget allows +20 mA standby draw |
| ATF16V8BQL-15PC | Ultra-low-power variant (5 mA standby); slower 15 ns speed grade; same package | Better for battery-backed or thermally limited systems where 15 ns timing suffices | Choose when system clock frequency ≤ 45 MHz and standby power is prioritized over speed |
Compared with ATF16V8B-10PC, the ATF16V8BQ-10PC delivers 36% lower standby current with identical timing and pin compatibility; versus ATF16V8BQL-15PC, it trades 7.5 ns speed for 7× higher standby current-making it optimal for performance-sensitive commercial-grade logic replacement.
Availability
ATF16V8BQ-10PC is available at Aetrix Electronics and suitable for industrial control logic replacement, legacy system glue logic consolidation, and PCI-compliant interface design requiring stable component supply across extended production lifecycles.
Supply support for ATF16V8BQ-10PC 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 manufacturer specializing in microcontrollers, nonvolatile memory, and programmable logic, later acquired by Microchip Technology in 2016.
The ATF16V8BQ series belongs to Atmel's Flash-based PLD product line, designed specifically for cost-effective, reprogrammable replacement of obsolete 20-pin PAL devices in commercial and industrial control systems.
FAQ
What is the maximum clock frequency supported by ATF16V8BQ-10PC?
The ATF16V8BQ-10PC supports up to 68 MHz in external feedback configurations (1/(tS + tCO)), 74 MHz in internal feedback mode, and 83 MHz in no-feedback mode. These values derive directly from its 7.5 ns tPD, 7.5 ns tS, and 7 ns tCO specifications under commercial conditions. Designers must verify timing closure using these AC parameters in their target system layout and loading conditions. The ATF16V8BQ-10PC does not include internal PLLs or frequency multipliers.
Does ATF16V8BQ-10PC require external pull-up resistors on its inputs?
No, ATF16V8BQ-10PC includes internal input and I/O pull-up resistors, ensuring defined logic-high states when pins float. This eliminates the need for external pull-ups on I1–I8, I9/OE, and I/O pins in most configurations. However, external pull-downs may still be needed for active-low reset or enable signals where low-state default is required. The ATF16V8BQ-10PC's internal pull-ups are weak enough to be overridden by standard TTL drivers.
Can ATF16V8BQ-10PC emulate a 16R8 PAL device?
Yes, ATF16V8BQ-10PC fully emulates the 16R8 in registered mode, allocating eight product terms per macrocell and using pin 1 as CLK and pin 11 as OE-matching the 16R8 pinout and functional behavior. JEDEC files for 16R8 are directly loadable into the ATF16V8BQ-10PC using standard PLD programmers. The ATF16V8BQ-10PC achieves this via its universal architecture and automatic compiler mode selection based on register usage.
What is the purpose of the security fuse in ATF16V8BQ-10PC?
ATF16V8BQ-10PC includes a single security fuse that, once programmed, prevents unauthorized readback of the fuse pattern and disables preload functionality-protecting intellectual property in deployed logic designs. Programming the fuse is irreversible and immediate. Crucially, the 64-bit user signature remains readable even after fuse programming, allowing traceability or version identification. The ATF16V8BQ-10PC security fuse should be programmed last in the manufacturing flow.
Is ATF16V8BQ-10PC compatible with industrial temperature ranges?
The ATF16V8BQ-10PC is specified for commercial temperature range (0°C to 70°C). For industrial use (-40°C to 85°C), Atmel documentation permits downgrading one speed grade (e.g., using ATF16V8BQ-15PI) and derating power by 30%. Direct use of ATF16V8BQ-10PC outside its rated range is not guaranteed and may violate timing or reliability specs. Always consult the latest Microchip (ex-Atmel) datasheet revision for qualified industrial variants. The ATF16V8BQ-10PC itself is not qualified for industrial temperatures.
ATF16V8BQ-10PC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- 16V8
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- EE PLD
- Number of Macrocells:
- 8
- Voltage - Input:
- 5V
- Speed:
- 10 ns
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 20-PDIP
ATF16V8BQ-10PC FAQ
1.How can I place an order for ATF16V8BQ-10PC through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF16V8BQ-10PC 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 ATF16V8BQ-10PC reliable?
The price and inventory of ATF16V8BQ-10PC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF16V8BQ-10PC is usually 5 days.
3.What payment methods are accepted for ATF16V8BQ-10PC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF16V8BQ-10PC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF16V8BQ-10PC?
ATF16V8BQ-10PC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF16V8BQ-10PC 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 ATF16V8BQ-10PC?
For technical support, including ATF16V8BQ-10PC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF16V8BQ-10PC requirements.
6.How does Aetrix verify that ATF16V8BQ-10PC is sourced from the original manufacturer or authorized distributors?
All ATF16V8BQ-10PC 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 ATF16V8BQ-10PC meets industry standards.
7.What is the process for return or replacement of ATF16V8BQ-10PC?
All ATF16V8BQ-10PC units undergo pre-shipment inspection (PSI). If there is an issue with ATF16V8BQ-10PC, 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 ATF16V8BQ-10PC part is unused and in its original packaging.
Return procedure for ATF16V8BQ-10PC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF16V8BQ-10PC Tags
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ATF16V8B-15JU
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ATF16V8BQL-15PU
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ATF16V8B-15SU
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ATF16V8BQL-15SU
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ATF16V8BQL-15JU
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ATF16V8BQL-15XU
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