ISPLSI - Lattice In-System Programmable Logic Family | CPLD
Référence : ISPLSI ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $1.85 | $1,85 |
| 10 | $1.45 | $14,50 |
| 100 | $1.05 | $105,00 |
| 500 | $0.78 | $390,00 |
| 1 000 | $0.62 | $620,00 |
ISPLSI Présentation
A CPLD (Complex Programmable Logic Device) is a type of programmable logic that combines multiple PAL/GAL-like logic blocks on a single chip with a programmable interconnect network. In the broader taxonomy, CPLDs sit alongside FPGAs in the programmable logic category, but use non-volatile EEPROM or flash configuration memory and a deterministic AND-OR logic fabric. Unlike SRAM-based FPGAs, most ispLSI devices retain their configuration without external boot memory, enabling instant-on operation - an important advantage for glue logic, bus interfacing, and power-up deterministic state machine applications.
The ispLSI family pioneered 5V in-system programmability (ISP) via a 4-wire JTAG-like interface, allowing devices to be re-programmed on a populated PCB without removing the chip. This eliminated the expensive UV-erase window and programmer sockets required by earlier EPLDs. The Global Routing Pool (GRP) provides complete, deterministic 100% connectivity between all logic blocks and I/O pins with predictable timing - critical for replacing discrete 74-series glue logic in industrial and telecom designs.
The ispLSI 2000E sub-family extends the architecture to 32 to 128 macrocells with 1K to 4K gates, while the ispLSI 5000V series scales to 256 macrocells with 12K gates. The ispLSI 8000V reaches 480 macrocells and 45K gates. All members share the same Lattice development flow using ispLEVER or ispDesignEXPERT software. Typical applications include peripheral bus interfacing, address decoding, state-machine replacement of discrete logic, and TTL/CMOS logic consolidation.
When designing with ispLSI devices, ensure the JTAG ISP pins (TMS, TCK, TDI, TDO) are accessible for in-system programming. Use Lattice's recommended decoupling (typically 0.1uF per VCC pin) and follow the GRP routing guidelines for predictable timing. Most ispLSI devices are now classified as mature or discontinued by Lattice, so designers should evaluate ispMACH 4000 or MachXO2/XO3 as modern replacements for new designs.
Alternatives de remplacement direct pour ISPLSI — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
LC4064V-75TN44C
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
LC4032V-25TN44C
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
ISPLSI 1016-60LJ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ISPLSI 2032E-110LTN44
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ISPLSI 1024-60LJ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ISPLSI Valeurs maximales et caractéristiques électriques
| Product Family | ispLSI (In-System Programmable Large Scale Integration) |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Series / Sub-families | ispLSI 1000, 2000, 2000E, 2000VE, 3000, 5000V, 8000, 8000V |
| Logic Capacity (ispLSI 1016) | 2000 PLD gates |
| Macrocells (ispLSI 1016) | 64 |
| Registers (ispLSI 1016) | 96 |
| Universal I/O Pins (ispLSI 1016) | 32 |
| Dedicated Input Pins (ispLSI 1016) | 4 |
| Dedicated Clock Input Pins (ispLSI 1016) | 3 |
| Process Technology | CMOS with EEPROM configuration memory |
| Tension d'alimentation | 5 V (typical) |
| In-System Programming | Yes (5V ISP via 4-wire JTAG interface) |
| Interconnect | Global Routing Pool (GRP) - 100% connectivity |
| Plage de température de fonctionnement | -40C to +85C (industrial) / -55C to +125C (military / 883) |
| Configuration Memory | Non-volatile EEPROM (retains without power) |
| Development Software | ispDesignEXPERT / ispLEVER (legacy), Lattice Diamond (newer) |
Guide de configuration des broches du ISPLSI standard
Configuration des broches du ISPLSI (boîtier standard). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ISPLSI.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ISPLSI convient pour 6 applications: Glue Logic Replacement and TTL Consolidation, Peripheral Bus Address Decoding, Industrial Control and PLC I/O Expansion, Telecommunications Line Card Interface, State Machine and Sequential Logic Implementation, Legacy Mil/Aero and 883B-Grade Designs.
Glue Logic Replacement and TTL Consolidation
The ISPLSI family excels at replacing multiple 74LS/74HC discrete logic ICs on legacy PCB designs. With 32-64 macrocells per device, a single ispLSI 1016 can replace 5-10 discrete SSI/MSI chips, reducing board area, power consumption, and BOM cost. Its non-volatile EEPROM configuration provides instant-on operation at power-up with no boot delay - ideal for industrial controllers and telecom equipment that require deterministic power-up state. The 5V-tolerant I/O interfaces directly with TTL logic without level shifters, simplifying mixed-logic designs.
Recommandé
Peripheral Bus Address Decoding
ISPLSI CPLDs are widely used in embedded systems to decode peripheral bus addresses and generate chip-select signals for memory-mapped devices. The fast propagation delay (7.5ns on -60 speed grade 1016) and wide input gating make them ideal for ISA, PCI, and VME bus interfaces. The deterministic GRP routing guarantees no routing-induced timing surprises, simplifying timing closure. Designers can encode complex address decode maps (e.g., 16 address lines into 16 chip selects) in a single device, replacing multiple 74LS138/139 decoders.
Recommandé
Industrial Control and PLC I/O Expansion
The ispLSI family's industrial temperature grade (-40C to +85C) and 5V tolerant I/O make it a long-standing choice for PLC I/O expansion modules, motor control interface boards, and factory automation. The in-system programmability allows field firmware updates via JTAG without disassembling the equipment - critical for installed-base industrial systems. Deterministic timing supports real-time control loops, while EEPROM configuration survives harsh electrical environments and brown-out events without external configuration memory.
Recommandé
Telecommunications Line Card Interface
ISPLSI 2000VE and 5000V series devices have been extensively used in telecommunications line cards for T1/E1 framing, HDLC control, and time-slot interchange functions. The 2000VE variants support 3.3V operation with 5V-tolerant I/O, suiting mixed-voltage telecom designs. The deterministic timing supports TDM bus interfaces and clock-domain crossing. Lattice's 25-year supply commitment (now mature) means many telecom OEMs still maintain ispLSI designs in long-life-cycle products like central office switches and DSLAMs.
Recommandé
State Machine and Sequential Logic Implementation
Wide input gating (up to 20 inputs per macrocell in the ispLSI 1016) makes the family particularly well-suited to state machines and complex sequential logic such as protocol controllers and bus arbiters. The 96 registers in the 1016, scaled up to 480 in the 8000V, support deep FSMs without external registers. According to the Lattice datasheet, the small logic block size enables fast, efficient random logic encoding, making the family popular for proprietary protocol implementations and legacy peripheral controllers.
Recommandé
Legacy Mil/Aero and 883B-Grade Designs
The ispLSI 1016-60LH/883 and similar 883B-qualified variants support military and aerospace applications with operating temperature ranges of -55C to +125C. These screened parts meet MIL-STD-883 for high-reliability environments and are used in avionics, radar, and military communication systems. According to the Lattice datasheet, the GRP architecture's deterministic timing is critical for these safety-sensitive applications where unpredictable propagation delays cannot be tolerated. Long-term support agreements are available through Lattice's military products division.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ISPLSI — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | LC4064V-75TN44C | ISPLSI 1016-60LJ | ISPLSI 2032E-110LTN44 |
|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | PLCC-44 / TQFP-44 (family dependent) | TQFP-44 | PLCC-44 | TQFP-44 |
| Macrocells (typical) | 64 (1016) / 32-480 (family range) | 64 | 64 | 32 |
| PLD Gates (typical) | 2000 (1016) / 1K-45K (family range) | 1600 | 2000 | 1000 |
| Supply Voltage | 5V (1000/2000E); 3.3V (2000VE/5000V) | 3.3V (5V tolerant I/O) | 5V | 5V |
| In-System Programmable | Yes (JTAG ISP) | Yes (JTAG ISP) | Yes (JTAG ISP) | Yes (JTAG ISP) |
| Configuration Memory | EEPROM (non-volatile) | EEPROM (non-volatile) | EEPROM (non-volatile) | EEPROM (non-volatile) |
| Lifecycle Status | NRND / Mature | Active | NRND | NRND |
Principaux différenciateurs
- Non-volatile EEPROM configuration with instant-on operation (vs Xilinx XC9500XL CPLD family)
- Deterministic GRP interconnect with 100% connectivity (vs Xilinx CoolRunner-II XPLA3 architecture)
- 5V native I/O without external level shifters (vs Altera MAX V CPLD family)
Notes de conception
Place 0.1uF decoupling capacitors as close as possible to every VCC/ground pair on the ISPLSI device - typically one cap per VCC pin. According to Lattice Application Note TN1068 (Power Decoupling and Bypass Filtering for Programmable Devices), inadequate decoupling causes VCC bounce that can corrupt JTAG ISP programming. For 5V designs, use X7R ceramic capacitors rated for at least 10V to maintain capacitance under DC bias.
Ensure JTAG ISP pins (TMS, TCK, TDI, TDO) are accessible on the PCB for in-system programming - either via a header, test points, or a ribbon connector. According to Lattice's ISP design guidelines, floating ISP pins or sharing them with active logic without proper isolation will fail programming. Add 1kohm series resistors on TMS/TCK/TDI if these signals are also driven by other logic during normal operation.
The Global Routing Pool (GRP) provides 100% deterministic connectivity, but signals still require clean PCB routing. Per Lattice design guidelines, keep clock traces short (<2 inches) and avoid routing them parallel to high-current switching signals. For the ispLSI 8000V series, add source-series termination (33-68 ohms) on high-speed outputs (>50MHz) to prevent ringing on long PCB traces.
Do not assume ISPLSI sub-family devices are pin-compatible without checking the datasheet - while the 2032 and 2032E share the same 44-pin TQFP pinout, the ispLSI 1016 in PLCC-44 differs from the 1016 in TQFP-44. According to Lattice's package migration guide, verify both the JTAG ISP pinout AND the I/O bank assignments before swapping packages on existing PCBs. Also confirm timing parameters - mixing -60 and -80 speed grades within a design is allowed but must respect setup/hold margins.
Informations de conformité
ispLSI family is RoHS compliant per Lattice product documentation. Mil/883 variants (e.g., ISPLSI1016-60LH/883) are available for aerospace/defense applications. AEC-Q100 not applicable as ispLSI is not marketed for automotive; use automotive-grade CPLDs like Lattice MachXO3-4300 for AEC-Q100 needs.
