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Microchip Technology ATF1508RE-5AX100
- Part No.:
- ATF1508RE-5AX100
- Manufacturer:
- Microchip Technology
- Package:
- 100-TQFP
- Datasheet:
-
ATF1508RE-5AX100.pdf
- Description:
- IC CPLD 128MC 5NS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,007
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Product details
Overview
ATF1508RE-5AX100 from Microchip Technology (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 128 macrocells, 5.0 ns pin-to-pin propagation delay, and registered operation up to 333 MHz. It integrates TTL/SSI/MSI logic in industrial control, FPGA companion logic, and legacy system upgrades requiring multi-voltage I/O support and in-system reconfiguration.
For engineers reviewing the ATF1508RE-5AX100 datasheet, ATF1508RE-5AX100 pinout, ATF1508RE-5AX100 application, or ATF1508RE-5AX100 equivalent, key selection factors include its dual I/O banks (1.5V–3.3V), IEEE 1532 JTAG ISP capability, on-chip 1.8V voltage regulator, and OTF/DRA reconfiguration modes for field-upgradable logic.
Technical Context
The ATF1508RE-5AX100 implements a fully CMOS architecture with eight logic blocks, each containing 16 macrocells and enhanced routing resources including global and regional buses, 40-signal switch matrices, and foldback cascade logic supporting up to 40-product-term sum terms. Its macrocell supports D/T/latch flip-flops, programmable output slew rate, open-collector outputs, and buried combinatorial/registered feedback within the same cell.
It features three global clock pins (GCLK1–GCLK3), dedicated input pins configurable as GCLR or OE, and JTAG boundary-scan compliant with IEEE 1149.1. Power management includes PD1/PD2-controlled power-down mode (<100 µA standby) and pin-keeper circuitry eliminating external pull-ups.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 128 macrocells - enables integration of multiple TTL/SSI/MSI functions into single device |
| Propagation Delay | 5.0 ns (–5 speed grade) - supports high-speed synchronous logic at up to 333 MHz registered operation |
| I/O Voltage Support | 1.5V, 1.8V, 2.5V, 3.3V via dual VCCIO banks - allows level translation between mixed-voltage subsystems |
| Core Supply | 3.3V input regulated internally to 1.8V - eliminates need for external core regulator; VCCIRO pin requires 2.2 µF + 470 pF bypass |
| Standby Current | As low as 70 µA - enables ultra-low-power hold states in battery-backed or energy-sensitive systems |
| Reprogrammability | 10,000 program/erase cycles with 20-year data retention - supports long-life field updates and design iteration |
| JTAG Interface | IEEE 1532-compliant ISP and IEEE 1149.1 boundary scan - enables in-circuit programming and production test without socket removal |
Pinout & Package
ATF1508RE-5AX100 is packaged in a 100-lead TQFP (Thin Quad Flat Package) with 0.5 mm pitch, RoHS-compliant, and rated for industrial temperature range (–40°C to +85°C). Pin assignments follow Figure 1-1 of datasheet 3682A–PLD–10/08.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCIRI (Pin 91) | Internal regulator input | Accepts 3.3V supply; feeds on-chip 1.8V core regulator - must be decoupled per datasheet |
| VCCIRO (Pin 39) | Internal regulator output | 1.8V core output; left floating and coupled externally with 2.2 µF + 470 pF capacitors |
| VCCIOA / VCCIOB | I/O bank supplies | Separate 1.5–3.3V supplies for Bank A (macrocells 1–64) and Bank B (macrocells 65–128) |
| GCLK1–GCLK3 | Global clock inputs | Three dedicated high-fanout clock inputs; each selectable per macrocell as register clock source |
| GCLR / OE1 / OE2 | Dedicated control inputs | Global clear, output enable 1/2 - configurable per macrocell as asynchronous reset or OE signal |
| TCK/TMS/TDI/TDO | JTAG boundary-scan interface | IEEE 1149.1 TAP controller pins; support ISP, boundary scan, and DRA/OTF reconfiguration |
| PD1 / PD2 | Power-down control | Active-high inputs that force device into <100 µA standby; disable I/O functionality when asserted |
Key Features
| Feature | Design Value |
|---|---|
| Flexible macrocell architecture | Each of 128 macrocells supports D/T/latch flip-flops, 5 product terms (expandable to 40), and independent combinatorial/registered output + buried feedback |
| Multi-voltage I/O banks | Two independent VCCIO supplies (VCCIOA/VCCIOB) enable simultaneous interfacing to 1.5V, 1.8V, 2.5V, and 3.3V devices without level shifters |
| In-system reconfiguration modes | Supports ISC (full memory reload), OTF (live partial reconfig), and DRA (temporary register update) - no system reset required for context switching |
| Low-noise power architecture | On-chip 1.8V regulator with dedicated VCCIRO bypass path; pin-keeper circuits eliminate floating inputs and external pull-ups |
| Robust configuration security | Programmable security fuse prevents readback; 16-bit user electronic signature remains accessible for traceability regardless of fuse state |
Applications
| Industrial PLC I/O Expansion | FPGA Companion Logic |
|---|---|
|
Use Scenario: Adding isolated digital I/O, debounce, and protocol translation to programmable logic controllers in factory automation. IC Role / Device Role / Timing Role: CPLD handles real-time edge detection, input filtering, and parallel-to-serial conversion before feeding data to main controller. Use Value: Dual I/O banks allow direct connection to 24V opto-isolator interfaces (via level-shifting) and 3.3V microcontroller buses without external translators. |
Use Scenario: Offloading glue logic, clock domain crossing, and configuration handshaking from Xilinx/Intel FPGAs in high-reliability systems. IC Role / Device Role / Timing Role: Provides deterministic setup/hold timing for FPGA configuration loading and manages JTAG chain partitioning. Use Value: 5.0 ns propagation delay ensures sub-cycle timing closure for FPGA startup sequences; IEEE 1532 ISP enables concurrent FPGA/CPLD programming. |
| Legacy System Modernization | Communications Backplane Control |
|
Use Scenario: Replacing obsolete PAL/GAL devices in avionics or telecom equipment where PCB redesign is prohibited. IC Role / Device Role / Timing Role: Emulates pin-compatible logic functions while adding hot-socketing and in-field firmware updates. Use Value: Pin-locked design modifications are supported by enhanced routing matrices; OTF reconfiguration allows runtime logic patching without power cycle. |
Use Scenario: Managing slot identification, power sequencing, and status monitoring across multi-slot VME or CompactPCI backplanes. IC Role / Device Role / Timing Role: Acts as intelligent backplane manager, decoding address lines and asserting reset/enable signals per slot. Use Value: SSTL2/SSTL3 I/O compliance enables direct interface to DDR memory controllers on backplane; three global clocks synchronize distributed timing domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3256XL-10TQ144 | 256 macrocells, 10 ns delay, 3.3V-only I/O, no on-chip regulator | Larger density but lacks multi-voltage I/O banks and internal voltage regulation | Select when higher logic capacity is needed and board already provides 1.8V core rail |
| LC4256ZE-7TN144C | 256 macrocells, 7 ns delay, 1.8V core + 3.3V I/O, no dual-VCCIO banks | Lower static power but no independent 1.5V/1.8V I/O support; requires external level shifters for mixed-voltage designs | Select for cost-sensitive consumer applications where full multi-voltage flexibility is unnecessary |
Compared with XCR3256XL-10TQ144 and LC4256ZE-7TN144C, the ATF1508RE-5AX100 uniquely combines 128-macrocell density with dual I/O voltage banks, integrated 1.8V regulation, and IEEE 1532 ISP-making it optimal for industrial upgrades requiring minimal board changes and field reprogrammability.
Availability
ATF1508RE-5AX100 is available at Aetrix Electronics and suitable for industrial PLC expansion, FPGA companion logic, and legacy system modernization requiring stable component supply, long lifecycle support, and RoHS-compliant packaging.
Supply support for ATF1508RE-5AX100 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
Microchip Technology acquired Atmel in 2016 and maintains full support for the ATF1508RE family, including software tools, documentation, and long-term manufacturing commitments.
The ATF1508RE series was designed for high-reliability, field-upgradable logic in industrial, aerospace, and communications infrastructure-emphasizing in-system programmability, multi-voltage interoperability, and robust configuration security.
FAQ
What is the core supply requirement for ATF1508RE-5AX100?
The ATF1508RE-5AX100 requires a 3.3V supply on VCCIRI (Pin 91), which feeds an internal voltage regulator producing 1.8V for the core logic. The VCCIRO pin (Pin 39) outputs this regulated 1.8V and must be bypassed with a 2.2 µF X7R capacitor and a 470 pF NPO capacitor to ensure stable operation and low noise.
Does ATF1508RE-5AX100 support true multi-voltage I/O operation?
Yes, ATF1508RE-5AX100 supports true multi-voltage I/O via two independent banks: VCCIOA powers Bank A (macrocells 1–64) and VCCIOB powers Bank B (macrocells 65–128). Each bank can be set to 1.5V, 1.8V, 2.5V, or 3.3V, enabling simultaneous interface with devices operating at different logic levels without external level shifters.
How does the OTF (On-the-Fly) reconfiguration mode work in ATF1508RE-5AX100?
In OTF mode, ATF1508RE-5AX100 loads new configuration data into its internal static registers while continuing to execute the current design. The new logic becomes active only after exiting OTF mode or upon next power-up. This enables runtime logic updates with minimal system interruption-ideal for adaptive control or firmware patches in deployed systems.
Can ATF1508RE-5AX100 be used without JTAG pins occupying I/O resources?
Yes. When JTAG functionality is disabled during programming, the TCK/TMS/TDI/TDO pins on ATF1508RE-5AX100 become available as general-purpose I/O. This is configured via device programming settings and allows full utilization of all 80 bi-directional I/O pins in non-debug configurations.
What is the purpose of the PD1 and PD2 pins on ATF1508RE-5AX100?
The PD1 and PD2 pins on ATF1508RE-5AX100 are active-high power-down controls. When either pin is driven high, the device enters a low-power standby state drawing less than 100 µA. All internal logic is latched, outputs are held, and pin transitions are ignored until PD1/PD2 returns low-enabling rapid wake-up in power-constrained applications.
ATF1508RE-5AX100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 100-TQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 5 ns
- Voltage Supply - Internal:
- 3V ~ 3.6V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 128
- Number of Gates:
- -
- Number of I/O:
- 80
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-TQFP (14x14)
ATF1508RE-5AX100 FAQ
1.How can I place an order for ATF1508RE-5AX100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1508RE-5AX100 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 ATF1508RE-5AX100 reliable?
The price and inventory of ATF1508RE-5AX100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1508RE-5AX100 is usually 5 days.
3.What payment methods are accepted for ATF1508RE-5AX100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1508RE-5AX100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1508RE-5AX100?
ATF1508RE-5AX100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1508RE-5AX100 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 ATF1508RE-5AX100?
For technical support, including ATF1508RE-5AX100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1508RE-5AX100 requirements.
6.How does Aetrix verify that ATF1508RE-5AX100 is sourced from the original manufacturer or authorized distributors?
All ATF1508RE-5AX100 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 ATF1508RE-5AX100 meets industry standards.
7.What is the process for return or replacement of ATF1508RE-5AX100?
All ATF1508RE-5AX100 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1508RE-5AX100, 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 ATF1508RE-5AX100 part is unused and in its original packaging.
Return procedure for ATF1508RE-5AX100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1508RE-5AX100 Tags
-
5M40ZE64C5N
Intel
-
ATF1502ASV-15AU44
Microchip Technology
-
5M80ZE64C5N
Intel
-
5M80ZT100C5N
Intel
-
ATF1502AS-10AU44
Microchip Technology
-
ATF1502AS-10JU44
Microchip Technology
-
5M80ZE64I5N
Intel
-
5M80ZT100I5N
Intel
-
LC4032V-75TN48C
Lattice Semiconductor Corporation
-
ATF1504ASV-15AU44
Microchip Technology
-
ATF1504AS-10JU44
Microchip Technology
-
5M160ZE64C5N
Intel
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