ATF16V8B-10PI - 10 ns 16V8 EEPLD | Microchip Technology
Référence : ATF16V8B-10PI ✗ Fin de vieATF16V8B-10PI Présentation
An electrically erasable programmable logic device, or EEPLD, is a semiconductor that stores its configured logic in nonvolatile memory. The ATF16V8B belongs to the broader PLD hierarchy: EEPLD > programmable logic device > digital logic IC. Its electrically erasable architecture permits the device to be reprogrammed during development, simplifying logic changes without manufacturing a new mask or using one-time-programmable fuse technology.
The ATF16V8B-10PI provides a 10 ns propagation delay, 250-gate logic capacity, 8 macrocells, and up to 16 inputs with 8 configurable I/O outputs. Each of the eight outputs can be assigned eight product terms. Three operating modes are selected automatically by programming software, allowing the same device to implement simple combinational functions or more complex registered logic while preserving a conventional 20-pin PAL-style interface.
Technically, the device uses high-performance CMOS circuitry and electrically erasable Flash-memory technology rather than one-time-programmable fuses. The architecture is a superset of generic 16R8 devices and can directly replace many 20-pin combinatorial PLDs. The 20-pin PDIP package, with 7.62 mm lead spacing, supports conventional through-hole PCB assembly and is appropriate for legacy industrial control, interface decoding, and embedded logic designs where surface-mount packages are unnecessary.
Typical uses include industrial control interfaces, legacy peripheral decoding, address and command translation, custom combinational logic, and small registered control functions. Its reprogrammability is particularly useful during prototyping, system bring-up, and maintenance revisions. For new high-volume designs, however, engineers should evaluate whether a microcontroller, a current CPLD, or a small FPGA offers better software flexibility and longer-term sourcing.
When designing around the ATF16V8B-10PI, account for the 5 V supply requirement, confirm that the selected GAL-style fuse map or device architecture matches the programmed equations, and validate all unused I/O states. Because the part is a legacy through-hole PLD, supply continuity, programming-tool support, and second-source availability deserve verification before committing to a production design.
This page consolidates verified manufacturer and distributor information, same-package replacement candidates, pricing status, pin mapping, and practical design guidance. It also distinguishes genuine drop-in device options from functional alternatives, helping engineers assess legacy support without relying on raw catalog listings alone.
Alternatives de remplacement direct pour ATF16V8B-10PI — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
ATF16V8B-10PC
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →ATF16V8B-15PC
✅ Remplacement directContactez-nous pour le prix
Voir la fiche technique →GAL16V8D-10LPNI
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
GAL16V8D-10LPI
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
GAL16V8D-10LPN
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATF16V8B-10PI Valeurs maximales et caractéristiques électriques
| Device Type | Electrically erasable programmable logic device (EEPLD) |
| Architecture | 16V8 |
| Logic Capacity | 250 gates |
| Macrocells | 8 macrocells |
| Maximum Inputs | 16 inputs |
| Configurable I/O Outputs | 8 I/O outputs |
| Product Terms per Output | 8 product terms |
| Propagation Delay | 10 ns maximum |
| Tension d'alimentation | 5 V |
| Programmable Technology | Electrically erasable Flash memory |
| Operating Modes | 3 automatically selected modes |
| Temperature Grade | Industrial grade |
| Boîtier | 20-pin PDIP |
| Type de montage | Through-hole |
| Lead Pitch | 7.62 mm |
| Green Package | Green package |
| Power Class | Standard power |
Configuration des broches de ATF16V8B-10PI
| Broche 1 | CLK — Clock input |
| Broche 2 | I0 — Logic input 0 |
| Broche 3 | I1 — Logic input 1 |
| Broche 4 | I2 — Logic input 2 |
| Broche 5 | I3 — Logic input 3 |
| Broche 6 | I4 — Logic input 4 |
| Broche 7 | I5 — Logic input 5 |
| Broche 8 | I6 — Logic input 6 |
| Broche 9 | I7 — Logic input 7 |
| Broche 10 | GND — Ground |
| Broche 11 | OE — Output enable input |
| Broche 12 | O0 — Configurable output or input 0 |
| Broche 13 | O1 — Configurable output or input 1 |
| Broche 14 | O2 — Configurable output or input 2 |
| Broche 15 | O3 — Configurable output or input 3 |
| Broche 16 | O4 — Configurable output or input 4 |
| Broche 17 | O5 — Configurable output or input 5 |
| Broche 18 | O6 — Configurable output or input 6 |
| Broche 19 | O7 — Configurable output or input 7 |
| Broche 20 | VCC — Power supply |
Applications typiques
ATF16V8B-10PI convient pour 6 applications: Industrial Control Interface Decoding, Legacy Peripheral Address Decoding, Custom Combinational Logic Consolidation, Registered Control and Sequencing Logic, Maintenance and Legacy Board Repair, Programmable Test and Measurement Logic.
Industrial Control Interface Decoding
The ATF16V8B-10PI fits legacy industrial control systems that require flexible decoding of switch, sensor, and actuator status signals. Its 10 ns maximum propagation delay supports faster decision paths than a 15 ns device, while the 5 V supply and industrial temperature grade align with conventional control-board rails. The electrically erasable Flash architecture allows logic equations to be revised without replacing a one-time-programmable PLD. Engineers should define all input and output states, validate the programmed fuse map, and provide local bypass decoupling on the 5 V rail.
Recommandé
Legacy Peripheral Address Decoding
The ATF16V8B-10PI can implement deterministic address, chip-select, and command decoding around older processor and peripheral systems. Its 8 macrocells, 16-input architecture, and 8 configurable I/O outputs provide enough logic capacity for compact decoding functions, while the 10 ns speed grade helps minimize decoder delay. The 20-pin PDIP format preserves compatibility with existing through-hole boards. Replacement work should verify active-low versus active-high output conventions and recompile or convert the original JEDEC fuse map before installation.
Recommandé
Custom Combinational Logic Consolidation
ATF16V8B-10PI is useful when several gates, exclusive-OR functions, latches, or special Boolean relationships can be consolidated into one reprogrammable 16V8 device. Its 250-gate capacity and eight macrocells offer a practical balance between logical flexibility and implementation simplicity. The electrically erasable memory makes engineering changes inexpensive, unlike fused PAL devices, and the 10 ns propagation-delay rating supports more demanding combinational paths. Designers should still perform worst-case timing checks using the final fuse map and selected operating mode.
Recommandé
Registered Control and Sequencing Logic
The ATF16V8B-10PI can implement registered state logic for legacy sequencing, pulse shaping, and control functions because its three operating modes include configurations beyond simple combinational logic. The 8 macrocells and configurable I/O positions allow state elements to share one package, reducing the number of discrete logic ICs on a legacy board. The 10 ns speed grade provides better timing margin than a 15 ns alternative, but system timing must include clock distribution, output enable delays, and any external reset or feedback routing. Programming software must generate the correct registered architecture.
Recommandé
Maintenance and Legacy Board Repair
ATF16V8B-10PI provides a practical replacement path for maintaining older 20-pin GAL16V8 or 16V8 logic boards because the family is described as pin-to-pin and JEDEC-fusemap compatible with common legacy devices. Electrically erasable Flash memory allows a replacement to be configured before installation, reducing board rework compared with one-time-programmable alternatives. The key constraint is not package compatibility but behavioral equivalence: maintenance engineers must compare programming files, power-up states, AC timing, DC thresholds, and thermal grade before fitting the new device.
Recommandé
Programmable Test and Measurement Logic
ATF16V8B-10PI can consolidate configurable trigger, masking, mode, and interlock logic in compact legacy test equipment. Its 10 ns propagation delay helps limit combinational delays in measurement-control paths, while three operating modes allow both combinational and registered functions. The 20-pin PDIP package is practical for repair-oriented and educational instruments where through-hole assembly and clear prototyping are valuable. For new instruments, engineers should confirm that programming utilities remain available and compare the PLD with a microcontroller or current CPLD when long-term supply becomes critical.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATF16V8B-10PI — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATF16V8B-10PC | ATF16V8B-15PC | GAL16V8D-10LPNI | GAL16V8D-10LPI | GAL16V8D-10LPN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | 20-pin PDIP | 20-pin PDIP | 20-pin PDIP | 20-pin PDIP | 20-pin PDIP | 20-pin PDIP |
| Architecture | 16V8 EEPLD | 16V8 EEPLD | 16V8 EEPLD | GAL16V8D | GAL16V8D | GAL16V8D |
| Propagation Delay | 10 ns maximum | 10 ns maximum | 15 ns maximum | 10 ns class | 10 ns class | 10 ns class |
| Macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells | 8 macrocells |
| Maximum Inputs | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs | Up to 16 inputs |
Principaux différenciateurs
- Faster speed grade than the 15 ns same-family option (vs ATF16V8B-15PC)
- Industrial-temperature ordering option (vs ATF16V8B-10PC)
- Electrically erasable Flash-memory configuration (vs GAL16V8D-10LPI)
Notes de conception
Do not approve a replacement from the 16V8 family label alone. Verify the physical package, temperature grade, maximum propagation delay, supply thresholds, output-enable polarity, programming technology, and JEDEC fuse map against the original board. Microchip support guidance states that ATF16V8B devices are pin-to-pin and fusemap compatible with GAL16V8 replacements, but it also notes minor AC and DC differences can exist.
Provide a clean 5 V rail and place the manufacturer-recommended bypass capacitance directly between the ATF16V8B-10PI VCC and ground pins. Keep the return path short and avoid routing switching-current returns beneath the device. Exact operating-current and decoupling values are not available in the supplied search excerpts, so the datasheet and the programmed output state should be used to finalize the power budget.
Preserve the 20-pin DIP footprint and 7.62 mm lead pitch when repairing or redesigning the board. Route clock and feedback signals away from adjacent switching nodes, and use a ground reference that remains continuous beneath or close to the device. Because several pins can be configured as inputs or outputs through the fuse map, define every unused pin explicitly rather than allowing accidental floating inputs.
The 10 ns rating identifies the maximum propagation delay of ATF16V8B-10PI, but it does not guarantee that every path containing several PLD levels will meet system timing. Analyze the programmed equations, worst-case clock arrangement, feedback paths, and external setup and hold requirements. ATF16V8B-15PC has a 15 ns maximum delay, which is 5 ns or 50% slower than the target and may invalidate an existing timing budget.
Informations de conformité
The manufacturer product listing identifies a green package, but the supplied data does not explicitly provide RoHS, REACH, halogen-free, lead-free, conflict-minerals, or AEC-Q100 declarations for ATF16V8B-10PI.
