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Microchip Technology ATF1504AS-15JI84
- Part No.:
- ATF1504AS-15JI84
- Manufacturer:
- Microchip Technology
- Package:
- 84-LCC (J-Lead)
- Datasheet:
-
ATF1504AS-15JI84.pdf
- Description:
- IC CPLD 64MC 15NS 84PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,041
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Product details
Overview
ATF1504AS-15JI84 from Microchip Technology (formerly Atmel) is a high-density, electrically-erasable Complex Programmable Logic Device (CPLD) with 64 macrocells, 5 product terms per macrocell expandable to 40, 7.5 ns pin-to-pin delay, 125 MHz registered operation, and JTAG-based in-system programmability. It serves as a reconfigurable logic fabric for glue logic consolidation, state machine control, and interface bridging in industrial control and legacy system upgrades.
For engineers reviewing the ATF1504AS-15JI84 datasheet, ATF1504AS-15JI84 pinout, ATF1504AS-15JI84 application, or ATF1504AS-15JI84 equivalent, key selection criteria include its 84-pin PLCC package, -15 speed grade (7.5 ns tPD), industrial temperature range (-40°C to +85°C), 5 V I/O compatibility, and PCI-compliant output drive capability.
Technical Context
The ATF1504AS-15JI84 implements a hierarchical CPLD architecture with four logic blocks sharing a global bus carrying up to 68 inputs plus 64 buried macrocell feedback signals. Each logic block's switch matrix selects up to 40 signals from this bus to feed into its macrocells.
Each of its 64 macrocells supports configurable D/T/latch flip-flops, individual output enable via dedicated OE pins or product terms, programmable slew rate, open-collector output option, and combinatorial output with registered feedback - all controlled by five product terms routed through a flexible PTMUX structure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Density | 64 macrocells - provides gate count equivalent to ~2000 usable gates for medium-complexity logic integration. |
| Speed Grade | -15 = 7.5 ns max pin-to-pin delay - enables reliable operation at 125 MHz registered clock frequency. |
| Operating Voltage | 5.0 V ±10% (industrial) - supports direct interfacing with legacy 5 V TTL/CMOS systems without level shifting. |
| Temperature Range | -40°C to +85°C - qualified for industrial environments including factory automation and motor control. |
| I/O Count | 68 bi-directional I/Os + 4 dedicated inputs - allows full utilization of 84-pin PLCC package for high-pin-count interface bridging. |
| JTAG Compliance | IEEE Std. 1149.1-1990 & 1149.1a-1993 - enables boundary-scan testing and in-system programming without device removal. |
| PCI Compliance | Meets PCI electrical specifications - supports direct connection to PCI bus without external driver buffers. |
Pinout & Package
ATF1504AS-15JI84 is packaged in an 84-lead PLCC (Plastic Leaded Chip Carrier) with 0.050" lead pitch, JEDEC MS-026AC compliant, and lead-free compatible. The package features gull-wing leads suitable for through-hole or surface-mount reflow assembly.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1–11, 13–22, 24–32, 34–43, 45–54, 56–65, 67–76, 78–84 | I/O | Bi-directional user-configurable logic pins supporting input, output, or bidirectional modes with programmable slew rate and open-collector option. |
| 12, 23, 33, 44, 55, 66, 77 | GND | Ground reference pins - seven dedicated GND connections ensure low-noise power return paths. |
| 17, 36, 57, 72 | VCCIO | 5 V I/O supply pins - four independent VCCIO pins decouple I/O power domains to reduce switching noise. |
| 46, 60 | VCCINT | Core logic supply - dual VCCINT pins provide stable 5 V to internal logic array and routing resources. |
| 68, 70 | GCLK1/I, GCLK2/OE2/I | Global clock / output enable inputs - support synchronous logic timing and shared output control across macrocells. |
| 69 | GCLR/I | Global asynchronous clear input - resets all registers simultaneously for deterministic state initialization. |
| 71 | OE1/I | Dedicated output enable input - controls group output enables independently of logic function. |
| 73 | GCLK3/I/O | Third global clock or I/O pin - adds flexibility for multi-clock domain designs or additional I/O when not used as clock. |
| 74–75 | PD1/I/O, PD2/I/O | Power-down control inputs - assert high to enter sub-10 mA standby mode while latching internal states. |
| 79–82 | TDI/I/O, TMS/I/O, TDO/I/O, TCK/I/O | JTAG test access port - enables IEEE 1149.1 boundary-scan testing and ISP programming without board removal. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Pin-keeper Circuits | Prevents floating inputs/I/Os by holding last-driven logic state - eliminates need for external pull-up resistors and associated DC power loss. |
| Per-macrocell Reduced-power Bit | Disables unused macrocell logic paths to cut dynamic power - enables fine-grained power optimization in partial-utilization designs. |
| Three Global Clock Inputs | Supports multi-domain synchronous logic with independent clocking for control, data, and interface logic sections. |
| Input Transition Detection (ITD) | Generates edge-triggered pulses on global clocks, inputs, and I/Os - enables efficient asynchronous event capture without external circuitry. |
| VCC Power-up Reset Option | Automatically initializes all registers at power-on with selectable hysteresis - ensures known startup state for safety-critical state machines. |
| Security Fuse + User Signature | One-time programmable fuse prevents bitstream readback; 16-bit user-accessible signature stores revision or project ID regardless of fuse state. |
Applications
| Industrial PLC I/O Expansion | Legacy Bus Interface Bridging |
|---|---|
Use Scenario: Adding isolated digital I/O channels to programmable logic controllers in factory automation cabinets. IC Role / Device Role / Timing Role: Configurable glue logic implementing address decoding, strobe generation, and level translation between microcontroller and opto-isolated I/O modules. Use Value: Replaces multiple discrete 74-series ICs with single reprogrammable device, reducing BOM count and enabling field-upgradable I/O mapping. | Use Scenario: Interfacing modern microcontrollers to legacy parallel buses such as ISA or VME in test equipment upgrades. IC Role / Device Role / Timing Role: Timing-critical bus arbitration, signal synchronization, and protocol conversion between mismatched clock domains. Use Value: 7.5 ns pin-to-pin delay and 125 MHz register performance meet strict ISA/VME setup/hold timing requirements without external wait-state logic. |
| PCI Add-in Card Control Logic | Motor Drive Sequencing |
Use Scenario: Implementing configuration, status monitoring, and command decoding in PCI-based motion control cards. IC Role / Device Role / Timing Role: PCI-compliant I/O buffer managing address/data multiplexing, parity generation, and interrupt handling per PCI specification. Use Value: Native PCI electrical compliance eliminates need for external bus transceivers, reducing component count and PCB area. | Use Scenario: Generating precise PWM dead-time, phase sequencing, and fault interlocks in three-phase inverter drives. IC Role / Device Role / Timing Role: Deterministic state machine coordinating gate driver enable/disable timing with cycle-accurate response to overcurrent signals. Use Value: Asynchronous reset (GCLR) and power-up reset ensure safe default state on power cycle or fault recovery. |
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, 3.3 V core/I/O, 10 ns tPD, 44-pin VQFP - lower voltage, smaller package, no 5 V tolerance. | Best for new 3.3 V designs with space constraints; unsuitable for direct 5 V legacy replacement. | Select only if migrating to 3.3 V system architecture and board layout allows QFP footprint change. |
| LC4064V-75TN100C | 64 macrocells, 3.3 V core/I/O, 7.5 ns tPD, 100-pin TQFP - matches speed but requires 3.3 V I/O and larger footprint. | Suitable for high-I/O-count 3.3 V systems needing same timing; lacks PCI compliance and industrial temp rating. | Choose when 3.3 V operation and 100-pin I/O expansion are priorities over 5 V compatibility and industrial qualification. |
Compared with XCR3064XL-10VQG44C and LC4064V-75TN100C, ATF1504AS-15JI84 uniquely supports 5 V I/O, industrial temperature range, PCI compliance, and 84-pin PLCC packaging - making it the only drop-in solution for upgrading legacy 5 V industrial control hardware.
Availability
ATF1504AS-15JI84 is available at Aetrix Electronics and suitable for industrial PLC upgrades, legacy bus interface bridging, and PCI add-in card control logic requiring stable component supply across extended product lifecycles.
Supply support for ATF1504AS-15JI84 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 products including the ATF1504AS family.
The ATF1504AS product line was designed for high-reliability industrial logic consolidation, offering electrically-erasable reprogrammability, JTAG debug capability, and robust 5 V operation in legacy system retrofits.
FAQ
What is the operating temperature range for ATF1504AS-15JI84?
The ATF1504AS-15JI84 is rated for industrial temperature operation from -40°C to +85°C. This specification is confirmed in the DC Operating Conditions table of the official datasheet (Rev. 0950N–PLD–07/02), where "Industrial" column explicitly defines this range. The "I" in the suffix "JI84" denotes industrial qualification, and the part is fully tested across this range for parameters including ICC1 standby current, tPD timing, and VIH/VIL thresholds.
Does ATF1504AS-15JI84 support in-system programming (ISP)?
Yes, ATF1504AS-15JI84 supports IEEE 1149.1-compliant in-system programming via its dedicated JTAG interface (TCK, TMS, TDI, TDO pins). The device uses industry-standard SVF files and does not require removal from the PCB. ISP functionality is enabled by default and can be disabled in the design file to reclaim the four JTAG pins as general-purpose I/O - a feature documented in the Programming section of the datasheet.
What package type is used for ATF1504AS-15JI84?
ATF1504AS-15JI84 uses an 84-lead PLCC (Plastic Leaded Chip Carrier) package, as indicated by the "J" (PLCC) and "84" (pin count) in the part number suffix. The mechanical drawing and top-view pinout for the 84-lead PLCC are provided on page 3 of the official datasheet (Rev. 0950N–PLD–07/02), confirming pin assignments including VCCIO, GND, GCLK, and JTAG signals.
Can ATF1504AS-15JI84 operate with 3.3 V I/O levels?
No, ATF1504AS-15JI84 is a 5 V-only I/O device. Its VCCIO specification is 5.0 V ±10% for industrial operation, and it does not support 3.3 V I/O signaling. The datasheet explicitly lists "VCCIO (5V) Power Supply" under DC Characteristics and makes no provision for 3.3 V I/O operation. For 3.3 V-compatible CPLDs, designers should consider alternatives like the ATF1502ASV or newer Microchip CoolRunner-II families.
What is the maximum clock frequency supported by ATF1504AS-15JI84?
ATF1504AS-15JI84 supports a maximum registered clock frequency of 125 MHz, corresponding to its -15 speed grade (7.5 ns maximum pin-to-pin delay). This value is specified in the AC Characteristics table under "fCNT" (Maximum Internal Global Clock Frequency) and is validated across the full industrial temperature range. The device also achieves 100 MHz array clock frequency and 76.9 MHz for slower speed grades.
ATF1504AS-15JI84 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATF15xx
- Package/Case:
- 84-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:
- 15 ns
- Voltage Supply - Internal:
- 4.5V ~ 5.5V
- Number of Logic Elements/Blocks:
- -
- Number of Macrocells:
- 64
- Number of Gates:
- -
- Number of I/O:
- 64
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 84-PLCC (29.31x29.31)
ATF1504AS-15JI84 FAQ
1.How can I place an order for ATF1504AS-15JI84 through Aetrix?
Please submit a Request for Quotation (RFQ) for ATF1504AS-15JI84 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 ATF1504AS-15JI84 reliable?
The price and inventory of ATF1504AS-15JI84 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATF1504AS-15JI84 is usually 5 days.
3.What payment methods are accepted for ATF1504AS-15JI84?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATF1504AS-15JI84 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATF1504AS-15JI84?
ATF1504AS-15JI84 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATF1504AS-15JI84 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 ATF1504AS-15JI84?
For technical support, including ATF1504AS-15JI84 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATF1504AS-15JI84 requirements.
6.How does Aetrix verify that ATF1504AS-15JI84 is sourced from the original manufacturer or authorized distributors?
All ATF1504AS-15JI84 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 ATF1504AS-15JI84 meets industry standards.
7.What is the process for return or replacement of ATF1504AS-15JI84?
All ATF1504AS-15JI84 units undergo pre-shipment inspection (PSI). If there is an issue with ATF1504AS-15JI84, 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 ATF1504AS-15JI84 part is unused and in its original packaging.
Return procedure for ATF1504AS-15JI84:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ATF1504AS-15JI84 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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