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HomeProductsIntegrated Circuits (ICs)Embedded - CPLDs (Complex Programmable Logic Devices)ISPLSI 1048EA-100LT128
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ISPLSI 1048EA-100LT128 - Lattice Semiconductor Corporation

Manufacturer Part Number
ISPLSI 1048EA-100LT128
Manufacturer
Lattice Semiconductor
Allelco Part Number
98D-ISPLSI 1048EA-100LT128
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
15,367 pcs available, New & Original
Parts Description
IC CPLD 192MC 10NS 128TQFP
Package
128-TQFP (14x14)
Data sheet
ISPLSI 1048EA-1.pdf

Datasheets

ispLSI 1048EA.pdf

PCN Manufacturer Information

Product Transfer 10/Mar/2016.pdf

PCN Obsolescence/ EOL

Tin/Lead Devices 23/Jun/2015.pdf
RoHs Status
 
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In stock: 15367

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Specifications

ISPLSI 1048EA-100LT128 Tech Specifications
Lattice Semiconductor Corporation - ISPLSI 1048EA-100LT128 technical specifications, attributes, parameters and parts with similar specifications to Lattice Semiconductor Corporation - ISPLSI 1048EA-100LT128

Product Attribute Attribute Value
Manufacturer Lattice Semiconductor
Voltage Supply - Internal 4.75V ~ 5.25V
Supplier Device Package 128-TQFP (14x14)
Series ispLSI® 1000EA
Programmable Type In System Programmable
Package / Case 128-LQFP
Package Tray
Operating Temperature 0°C ~ 70°C (TA)
Product Attribute Attribute Value
Number of Macrocells 192
Number of Logic Elements/Blocks 48
Number of I/O 96
Number of Gates 8000
Mounting Type Surface Mount
Delay Time tpd(1) Max 10 ns
Base Product Number ISPLSI 1048EA

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Frequently Asked Questions(FAQ)

What is the typical propagation delay and how does it impact timing-critical applications for the ISPLSI 1048EA-100LT128?
The ISPLSI 1048EA-100LT128 offers a maximum propagation delay of 10 nanoseconds, which enables high-speed combinatorial logic performance. This characteristic makes it suitable for systems where signal transitions must occur rapidly in response to input changes. In digital designs requiring tight synchronization or fast state machines, this delay can directly influence clock frequency margins and setup/hold timing budgets. Engineers evaluating FPGA alternatives should consider whether the 10 ns tpd aligns with their system’s critical path requirements, especially in control logic or data routing scenarios where propagation skew could affect reliability.
How many macrocells and logic elements are available in the ISPLSI 1048EA-100LT128, and what design complexity can it support?
The ISPLSI 1048EA-100LT128 provides 192 macrocells and 48 programmable logic blocks, delivering up to 8,000 usable gates. This capacity supports moderately complex sequential logic, state machine implementations, and glue logic interfacing between subsystems. While sufficient for bridging protocols like UART to parallel buses or managing peripheral handshakes, it may become constrained in designs involving large arithmetic units or deep pipeline stages. When comparing against newer CPLDs or FPGAs, designers should assess whether the gate count adequately accommodates future feature additions without exceeding resource limits.
What are the power supply requirements and voltage tolerance for the ISPLSI 1048EA-100LT128?
The ISPLSI 1048EA-100LT128 operates within a core voltage range of 4.75V to 5.25V, compatible with standard 5V tolerant systems. This narrow window necessitates careful regulation on the board; deviations beyond ±2.5% from 5V may cause functional instability. In mixed-voltage environments where downstream components operate at 3.3V or lower, level-shifting circuitry becomes essential unless bidirectional I/O standards are supported. Designers must also account for dynamic current spikes during configuration or high toggle rates when estimating total power consumption and thermal dissipation.
How does the operating temperature range of the ISPLSI 1048EA-100LT128 affect deployment in industrial environments?
The ISPLSI 1048EA-100LT128 is rated for commercial-grade operation from 0°C to 70°C. This restricts its use to indoor or climate-controlled settings and excludes automotive or outdoor applications subject to ambient heat fluctuations. In embedded systems near heat-generating components like power supplies or processors, passive cooling alone may not suffice to maintain junction temperatures below thresholds that could degrade reliability over time. For extended temperature ranges, alternative Lattice devices such as the ispMACH series may be more appropriate despite differing pinouts and architectural features.
What package type does the ISPLSI 1048EA-100LT128 use, and what implications does this have for PCB layout?
The ISPLSI 1048EA-100LT128 comes in a 128-pin TQFP (Thin Quad Flat Package) measuring 14x14mm. Its surface-mount footprint requires precise soldering profiles to avoid tombstoning or pad lifting, particularly due to the uniform pin distribution across all four sides. High-density routing around the IC demands careful attention to via placement and trace impedance matching for high-speed signals. Thermal vias under the package body can help dissipate heat but must be isolated from signal layers to prevent ground loops or unintended coupling.
Can the ISPLSI 1048EA-100LT128 be used in battery-powered devices, and what factors limit its suitability for low-power designs?
Due to its legacy architecture and lack of modern power gating or sleep modes, the ISPLSI 1048EA-100LT128 is generally unsuitable for energy-constrained applications. Static power dissipation, even in idle states, tends to exceed specifications found in contemporary CPLDs or microcontrollers. Additionally, its RoHS non-compliance may rule out certain markets requiring full environmental certification. For portable or battery-operated systems, engineers should evaluate newer Lattice MachXO or iCE40 families, which offer significantly lower quiescent currents and support for partial reconfiguration.
What is the significance of the Moisture Sensitivity Level (MSL) rating for the ISPLSI 1048EA-100LT128, and how does it affect handling during assembly?
With an MSL of 3, the ISPLSI 1048EA-100LT128 must be stored in dry conditions and assembled within 168 hours after removing it from moisture-protective packaging. If exposed beyond this window without baking, condensation during reflow soldering could lead to internal delamination or popcorning, compromising long-term reliability. Facilities using automated pick-and-place equipment must implement humidity-controlled storage and real-time monitoring to comply with JEDEC standards. Failure to adhere increases defect risks during production ramp-up or repair cycles.
Are there known substitutes or equivalent parts to the ISPLSI 1048EA-100LT128, and how do they compare functionally?
One documented substitute is the LC4128V-10TN128I from Lattice Semiconductor. While both belong to similar eras and serve comparable roles in glue-logic applications, differences in macrocell structure, I/O bank organization, and configuration memory mapping may require firmware adjustments. The LC4128V typically features improved routing flexibility and slightly lower power consumption, though absolute performance depends on specific utilization patterns. Designers considering substitution should verify timing closure, pin compatibility, and software toolchain support before committing to migration paths.
How does the ISPLSI 1048EA-100LT128 handle ESD protection, and what precautions are recommended during handling?
As a legacy component, the ISPLSI 1048EA-100LT128 lacks explicit ESD protection diodes integrated into every I/O pin, relying instead on external measures for electrostatic discharge mitigation. Handling personnel must use grounded wrist straps, ESD-safe workstations, and conductive trays to prevent damage during unpacking or rework. Inputs driven by human contact or unshielded cables are especially vulnerable during prototyping phases. Implementing TVS diodes on sensitive nets and avoiding hot-swapping programmed devices further reduces failure risks associated with transient events.
What tools and software ecosystem support programming and debugging for the ISPLSI 1048EA-100LT128?
The ISPLSI 1048EA-100LT128 is programmed using Lattice’s legacy ispVM System software, which interfaces with hardware programmers like the Lattice ispDOWNLOAD Cable. Modern Lattice Diamond software no longer includes native device support, so legacy licenses or third-party tools may be required. Debugging relies on in-system verification rather than real-time trace capabilities, limiting visibility into internal state transitions. Designers should validate timing constraints early using static timing analysis tools compatible with the device family to avoid last-minute redesign efforts.
Why might a designer choose the ISPLSI 1048EA-100LT128 despite its limited feature set compared to modern alternatives?
The ISPLSI 1048EA-100LT128 may still be selected in legacy system maintenance or cost-sensitive projects where replacing aging hardware introduces unacceptable risk or budget overruns. Its deterministic behavior, predictable timing, and mature toolchain support reduce integration uncertainty in stable environments. However, new development should favor newer architectures unless backward compatibility or existing inventory justifies continued use. Even then, lifecycle status and obsolescence planning should drive contingency strategies to mitigate supply chain disruptions.
How do the I/O count and configuration flexibility of the ISPLSI 1048EA-100LT128 influence peripheral connectivity options?
With 96 I/O pins, the ISPLSI 1048EA-100LT128 can interface with multiple parallel buses, serial peripherals, or custom signaling schemes within its pin budget. However, the fixed I/O bank structure limits simultaneous use of high-speed differential pairs or configurable LVDS channels common in modern standards. Assigning dedicated pins for clocks, resets, and critical control lines helps optimize signal integrity, while unused pins should be terminated appropriately to avoid floating inputs that increase susceptibility to noise-induced glitches.

Parts with Similar Specifications

The three parts on the right have similar specifications to Lattice Semiconductor Corporation ISPLSI 1048EA-100LT128

Product Attribute ISPLSI 1048EA-100LQ128 ISPLSI 1048EA-170LT128 ISPLSI 1048EA-170LQ128 ISPLSI 1048EA-125LT128
Part Number ISPLSI 1048EA-100LQ128 ISPLSI 1048EA-170LT128 ISPLSI 1048EA-170LQ128 ISPLSI 1048EA-125LT128
Manufacturer Lattice Semiconductor Corporation Lattice Semiconductor Corporation Lattice Semiconductor Corporation Lattice Semiconductor Corporation
Programmable Type - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Voltage Supply - Internal - - - -
Delay Time tpd(1) Max - - - -
Number of Logic Elements/Blocks - - - -
Number of Macrocells - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Number of I/O - - - -
Number of Gates - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Series - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Mounting Type - Surface Mount Through Hole Surface Mount

ISPLSI 1048EA-100LT128 Datasheet PDF

Download ISPLSI 1048EA-100LT128 pdf datasheets and Lattice Semiconductor Corporation documentation for ISPLSI 1048EA-100LT128 - Lattice Semiconductor Corporation.

Datasheets
ispLSI 1048EA.pdf
Manuals
Leaded Pkg PCB Layout Guide.pdf
PCN Manufacturer Information
Product Transfer 10/Mar/2016.pdf
PCN Obsolescence/ EOL
Tin/Lead Devices 23/Jun/2015.pdf
PCN Packaging
All Dev Pkg Mark Chg 12/Nov/2018.pdf

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ISPLSI 1048EA-100LT128 Image

ISPLSI 1048EA-100LT128

Lattice Semiconductor Corporation
98D-ISPLSI 1048EA-100LT128

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