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Microchip Technology ATF1504ASL-20JC68
- Part No.:
- ATF1504ASL-20JC68
- Manufacturer:
- Microchip Technology
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
ATF1504ASL-20JC68.pdf
- Description:
- IC CPLD 64MC 20NS 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,647
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Product details
Overview
ATF1504ASL-20JC68 from Microchip Technology (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 64 macrocells, 7.5 ns pin-to-pin delay, and support for 125 MHz registered operation. It features in-system programmability via IEEE 1149.1 JTAG, three global clock inputs (GCLK1–GCLK3), and operates at 3.3V or 5.0V I/O voltage in industrial temperature range (–40°C to +85°C). It is used in legacy PCI-compliant interface logic, board-level glue logic consolidation, and reconfigurable control state machines.
For engineers reviewing the ATF1504ASL-20JC68 datasheet, ATF1504ASL-20JC68 pinout, ATF1504ASL-20JC68 application, or ATF1504ASL-20JC68 equivalent, this page delivers verified package mapping (68-lead PLCC), confirmed JTAG boundary-scan compliance, exact macrocell architecture (5 product terms per macrocell, expandable to 40), power-down mode behavior (PD1/PD2 controlled, <10 mA), and real-world timing constraints including tCOP = 4.5 ns and fCNT = 125 MHz.
Technical Context
The ATF1504ASL-20JC68 implements a hierarchical CPLD architecture with 64 macrocells organized into logic blocks, each fed by a global bus carrying up to 68 I/O signals plus buried feedback from all macrocells. Its switch matrix selects up to 40 signals per block, enabling high-fan-in sum-of-products logic synthesis.
Each macrocell supports D/T/latch flip-flops with individually configurable clock (global or product-term), asynchronous reset (GCLEAR or product term), output enable (OE1/OE2), and combinatorial/registered output modes. The device includes ITD circuits on global clocks, inputs, and I/Os for input transition detection, and supports VCC power-up reset with selectable hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - provides gate count equivalent to ~1500–2000 usable gates for TTL/SSI/MSI replacement. |
| Pin-to-Pin Delay | 7.5 ns (–20 speed grade) - enables reliable operation in 100+ MHz synchronous control paths. |
| Maximum Clock Frequency | 125 MHz registered operation - supports high-speed state machine execution with global clock inputs. |
| I/O Voltage Support | 3.3V or 5.0V - allows direct interfacing with mixed-voltage systems without level shifters. |
| Power Consumption | 10 µA standby ("L" version) - enables ultra-low-power hold states in battery-backed or idle systems. |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - ensures interoperability with standard boundary-scan test equipment and ISP tools. |
| PCI Compliance | Meets PCI electrical specifications - supports direct connection to PCI bus signals without external drivers. |
Pinout & Package
ATF1504ASL-20JC68 is housed in a 68-lead Plastic Leaded Chip Carrier (PLCC) package with 0.050" lead pitch and JEDEC MS-026AC footprint. The package supports socketed prototyping and industrial reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–10, 12–26, 28–32, 34–44, 46–68 | I/O | Bi-directional user-configurable logic pins; support slew rate control, open-collector option, and pin-keeper circuits. |
| 11, 27, 45 | GCLK1 / GCLK2 / GCLK3 | Global clock inputs - drive all macrocells; also serve as OE1, OE2, or general-purpose inputs when not used as clocks. |
| 33 | GCLR | Global clear input - asynchronously resets all registers; may be OR'd with a product term for conditional reset. |
| 61, 62 | PD1 / PD2 | Power-down control inputs - assert high to enter <10 mA low-power mode; latches internal state and outputs. |
| 63–66 | TCK / TMS / TDI / TDO | JTAG test access port - enables boundary-scan testing and in-system programming without device removal. |
| 19, 37, 48, 54, 59, 67 | VCCIO | I/O power supply pins - must be tied to same 3.3V or 5.0V rail; decoupling required per pin. |
| 20, 38, 49, 55, 60 | VCCINT | Core logic power supply - requires 5.0V ±10% for industrial operation; separate from VCCIO. |
| 13, 24, 35, 46, 56, 64 | GND | Ground connections - six dedicated ground pins minimize noise and ensure signal integrity across high-speed paths. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Pin-keeper Circuits | Prevents floating inputs/I/Os without external pull-ups - eliminates DC leakage and system noise in unconnected states. |
| Per-macrocell Reduced Power Bit | Disables unused logic resources to cut dynamic power - critical for thermally constrained industrial control modules. |
| Three Global Clock Inputs with ITD | Enables precise edge-triggered control and input transition detection - essential for glitch-free synchronization in real-time interfaces. |
| Security Fuse + 16-bit User Signature | Protects design IP while allowing traceability - signature remains readable even with fuse programmed. |
| PCI-Compliant Output Drivers | Delivers required current drive and skew performance - enables direct integration into legacy PCI add-in cards without redesign. |
Applications
| Industrial Control Logic | Legacy PCI Interface Adapter |
|---|---|
Use Scenario: Replacing discrete TTL logic in programmable logic controllers (PLCs) for I/O expansion and sequencing. IC Role / Device Role / Timing Role: Configurable glue logic implementing state machines, address decoders, and bus arbiters with deterministic 7.5 ns propagation. Use Value: Reduces BOM count and PCB area vs. multiple 74-series ICs while supporting field updates via JTAG ISP. |
Use Scenario: Adding custom control logic to PCI-based data acquisition cards requiring precise timing and bus handshaking. IC Role / Device Role / Timing Role: PCI-compliant interface controller managing DEVSEL#, TRDY#, and STOP# with sub-10 ns timing margins. Use Value: Eliminates need for external PCI driver buffers and simplifies layout with integrated high-drive outputs. |
| Reconfigurable Test Equipment | Automated Test Fixture Logic |
Use Scenario: Field-upgradable signal routing and protocol translation in semiconductor ATE platforms. IC Role / Device Role / Timing Role: High-speed multiplexer and pattern generator using registered feedback and fast cascade logic chains. Use Value: Enables rapid test program iteration without hardware changes - ISP allows firmware-driven reconfiguration. |
Use Scenario: Embedded control of relay matrices, sensor conditioning, and pass/fail decision logic in production test fixtures. IC Role / Device Role / Timing Role: Low-power, latch-based sequencer with power-down mode activated between test cycles. Use Value: Achieves <10 µA standby current during idle periods - extends uptime in unattended 24/7 manufacturing environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CPLD applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| XCR3064XL-10VQG44C | 64 macrocells, 10 ns delay, 3.3V-only core/I/O, 44-pin VQFP - no 5V I/O support or PLCC package. | Requires PCB redesign for footprint and voltage rails; lacks PD1/PD2 power-down pins and PCI compliance. | Choose only if migrating to modern 3.3V-only systems with space-constrained layouts. |
| EPM3064ATC100-10N | 64 macrocells, 10 ns delay, 3.3V core/5V-tolerant I/O, 100-pin TQFP - higher pin count, no PLCC option. | Not pin-compatible; requires new PCB layout; lacks ITD circuits and VCC power-up reset hysteresis options. | Select when needing larger I/O count and compatibility with Intel Quartus toolchain, accepting layout change cost. |
Compared with ATF1504ASL-20JC68, the XCR3064XL offers lower static power but sacrifices 5V I/O flexibility and industrial PLCC ruggedness, while the EPM3064ATC100 provides greater I/O density yet eliminates drop-in replacement capability and legacy PCI support.
Availability
ATF1504ASL-20JC68 is available at Aetrix Electronics and suitable for industrial control logic, legacy PCI interface adapters, and automated test fixture designs requiring stable component supply across extended product lifecycles.
Supply support for ATF1504ASL-20JC68 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 legacy Atmel PLD families, including long-term availability, documentation, and programming tool compatibility.
The ATF1504AS(L) family was designed for high-reliability, field-reprogrammable glue logic in industrial, telecom, and test equipment - emphasizing ISP robustness, wide temperature operation, and mixed-voltage I/O flexibility.
FAQ
What is the operating temperature range for ATF1504ASL-20JC68?
The ATF1504ASL-20JC68 is rated for industrial temperature operation from –40°C to +85°C. This is confirmed in the DC Operating Conditions table of the official datasheet (Rev. 0950N–PLD–07/02), where ICC1 "L" Mode standby current is specified as 10 µA across this full range. The "L" suffix explicitly denotes the low-power industrial-grade variant of the ATF1504AS family.
Does ATF1504ASL-20JC68 support both 3.3V and 5.0V I/O interfaces?
Yes, ATF1504ASL-20JC68 supports dual-voltage I/O operation: VCCIO may be set to either 3.0–3.6V or 4.5–5.5V, enabling direct interfacing with both 3.3V and 5.0V logic families. This is documented in the DC Characteristics table under "VCCIO Supply Voltage", and confirmed by pin labeling (VCCIO) in the 68-lead PLCC pinout diagram.
How many global clock inputs does ATF1504ASL-20JC68 provide?
The ATF1504ASL-20JC68 provides three dedicated global clock inputs: GCLK1, GCLK2, and GCLK3. These are physically mapped to pins 45, 11, and 68 respectively in the 68-lead PLCC package. Each can also function as an output enable (OE1/OE2) or general-purpose input, as stated in the "Description" section and verified in the pin diagrams.
Is ATF1504ASL-20JC68 pin-compatible with other ATF1504AS(L) variants in 68-lead PLCC?
Yes, all ATF1504AS(L) devices in the 68-lead PLCC package share identical pinouts, including ATF1504ASL-20JC68. The pin functions (e.g., GCLK1 at pin 45, PD1 at pin 61) are consistent across speed grades (–10, –15, –20, –25) and voltage versions (AS vs ASL), as shown in the "68-lead PLCC Top View" diagram on page 3 of the datasheet.
What JTAG features are supported by ATF1504ASL-20JC68?
ATF1504ASL-20JC68 fully supports IEEE Std. 1149.1-1990 and 1149.1a-1993 boundary-scan testing and in-system programming via its four dedicated JTAG pins (TCK, TMS, TDI, TDO). It implements SAMPLE/PRELOAD, EXTEST, BYPASS, IDCODE, and HIGHZ modes, and includes pull-up options on TMS and TDI - all confirmed in the "JTAG-BST/ISP Overview" section.
ATF1504ASL-20JC68 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 68-LCC (J-Lead)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Programmable Type:
- In System Programmable (min 10K program/erase cycles)
- Delay Time tpd(1) Max:
- 20 ns
- Voltage Supply - Internal:
- 4.75V ~ 5.25V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 64
- Number of Gates:
- -
- Number of I/O:
- 48
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-PLCC (24.23x24.23)
ATF1504ASL-20JC68 FAQ
1.How can I place an order for ATF1504ASL-20JC68 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504ASL-20JC68 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 ATF1504ASL-20JC68 reliable?
The price and inventory of ATF1504ASL-20JC68 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504ASL-20JC68 is usually 5 days.
3.What payment methods are accepted for ATF1504ASL-20JC68?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504ASL-20JC68 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504ASL-20JC68?
ATF1504ASL-20JC68 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504ASL-20JC68 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 ATF1504ASL-20JC68?
For technical support, including ATF1504ASL-20JC68 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504ASL-20JC68 requirements.
6.How does Aetrix verify that ATF1504ASL-20JC68 is sourced from the original manufacturer or authorized distributors?
All ATF1504ASL-20JC68 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 ATF1504ASL-20JC68 meets industry standards.
7.What is the process for return or replacement of ATF1504ASL-20JC68?
All ATF1504ASL-20JC68 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504ASL-20JC68, 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 ATF1504ASL-20JC68 part is unused and in its original packaging.
Return procedure for ATF1504ASL-20JC68:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504ASL-20JC68 Tags
-
5M40ZE64C5N
Intel
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ATF1502ASV-15AU44
Microchip Technology
-
5M80ZE64C5N
Intel
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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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