ATF16V8B-15SI - 15ns 8-Macrocell EEPLD | Microchip | 20-SOIC
N.º de pieza: ATF16V8B-15SI ✓ ActivoATF16V8B-15SI Descripción general
An EEPLD is a semiconductor that stores a user-defined Boolean function in nonvolatile Flash memory. It occupies the same broad role as a PAL, GAL, CPLD, or FPGA, but combines a relatively small logic array with a simpler programming model. In a system hierarchy, the ATF16V8B belongs to the programmable-logic-device family and provides more integration and reprogrammability than a discrete AND-OR logic implementation.
The ATF16V8B family offers 250 gates, standard power operation, a green package, and support for as many as 16 inputs and 8 I/Os. The -15 speed designation corresponds to a 15 ns maximum pin-to-pin delay. Flash-based configuration allows the same device to be reused during development or programmed in the field without removable memory.
ATF16V8B devices support several architectures, including combinational, complex combinatorial, registered, and mixed registered/combinational modes. This flexibility makes one part family useful for address decoding, state-machine logic, interface control, Boolean equations, and small glue-logic blocks. Microchip states that the ATF16V8B and ATF16V8C families are pin-to-pin and JEDEC fusemap compatible replacements for GAL16V8-class devices.
Typical applications include industrial control boards, legacy peripheral emulation, programmable logic interfaces, decoder and latch circuits, and compact control systems that need nonvolatile combinational or registered logic. The 20-SOIC package also supports designs that require a through-hole-compatible leaded package rather than a fine-pitch surface-mount arrangement.
When planning a board, confirm the selected fuse map, speed grade, supply voltage, and pin assignment before generating the programming file. The -15SI ordering code identifies a 15 ns device in the industrial-temperature SOIC package. Use the manufacturer's pin-description table and programming-tool documentation as the authoritative references for board connections and device configuration.
Alternativas directas para ATF16V8B-15SI — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATF16V8B-15SI (mismo factor de forma y huella) — difiere en Package, Device Type, Maximum Inputs, Family Maximum Pin-to-Pin Delay, Maximum Pin-to-Pin Delay.
ATF16V8B-15SU
✅ Sustitución directaConsulte el precio
Ver hoja de datos →ATF16V8CZ-15SI
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATF16V8C-7SC
✅ Sustitución directaConsulte el precio
Ver hoja de datos →ATF16V8BQL-15SI
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ATF16V8C-8SC
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
ATF16V8B-15SI Valores máximos y características eléctricas
| Device Type | Electrically Erasable Programmable Logic Device (EEPLD) |
| Logic Gate Count | 250 gates |
| Macrocell Count | 8 macrocells |
| Maximum Pin-to-Pin Delay | 15 ns |
| Maximum Inputs | Up to 16 inputs |
| Maximum I/O Count | Up to 8 I/Os |
| Tensión de alimentación | 5 V |
| Power Class | Standard power |
| Configuration Technology | Electrically erasable Flash memory |
| Encapsulado | 20-SOIC, 7.50 mm width |
| Tipo de montaje | Surface mount |
| Device Architecture | Combinational, complex combinatorial, registered, and mixed architectures |
| Package Color | Green |
Configuración de pines de ATF16V8B-15SI
| Pin 1 | CLK — Clock input for registered configurations |
| Pin 2 | I/O0 — Configurable input or bidirectional I/O |
| Pin 3 | I/O1 — Configurable input or bidirectional I/O |
| Pin 4 | I/O2 — Configurable input or bidirectional I/O |
| Pin 5 | I/O3 — Configurable input or bidirectional I/O |
| Pin 6 | I/O4 — Configurable input or bidirectional I/O |
| Pin 7 | I/O5 — Configurable input or bidirectional I/O |
| Pin 8 | I/O6 — Configurable input or bidirectional I/O |
| Pin 9 | I/O7 — Configurable input or bidirectional I/O |
| Pin 10 | GND — Ground connection |
| Pin 11 | O0 — Output or configurable I/O |
| Pin 12 | O1 — Output or configurable I/O |
| Pin 13 | O2 — Output or configurable I/O |
| Pin 14 | O3 — Output or configurable I/O |
| Pin 15 | O4 — Output or configurable I/O |
| Pin 16 | O5 — Output or configurable I/O |
| Pin 17 | O6 — Output or configurable I/O |
| Pin 18 | O7 — Output or configurable I/O |
| Pin 19 | CLK — Clock input for registered configurations |
| Pin 20 | VCC — Positive supply connection |
Aplicaciones típicas
ATF16V8B-15SI es adecuado para 6 aplicacións: Industrial Address Decoding, Registered Control-State Logic, Legacy Peripheral Interface Control, Boolean Glue Logic Consolidation, Data and Signal Routing, Programmable Test and Measurement Logic.
Industrial Address Decoding
The ATF16V8B-15SI is well suited to decoding I/O, interrupt, or peripheral-select addresses in a compact control system. Its 8 macrocells and support for as many as 16 inputs allow several decode and qualification functions to be consolidated into one nonvolatile Flash PLD. With a 15 ns maximum pin-to-pin delay, it is appropriate for moderate-speed control buses where the selected address or command must be qualified and routed within a defined clock interval. The 20-SOIC package also permits straightforward assembly where a larger leaded footprint is preferred over fine-pitch packages.
Recomendado
Registered Control-State Logic
A registered ATF16V8B architecture can implement state transitions, command sequencing, and output-enable control without multiplying discrete flip-flops. The ATF16V8B-15SI supports up to 8 I/Os and a 15 ns pin-to-pin delay, allowing state-machine logic to operate alongside ordinary microcontroller or programmable-controller I/O. Flash configuration preserves the implemented function across power cycles, which is useful for production equipment and control modules that must operate immediately after startup.
Recomendado
Legacy Peripheral Interface Control
The ATF16V8B-15SI can consolidate protocol steering, command translation, and data-routing functions used by legacy ISA, industrial, or expansion interfaces. Its 20-pin SOIC footprint has room for up to 16 inputs and 8 I/Os, enabling bidirection and multiplexing functions to be implemented in a single programmable device. The 15 ns delay is appropriate for moderate-speed control paths, while the electrically erasable Flash configuration allows firmware revisions or board variants to reuse the same PCB and package position.
Recomendado
Boolean Glue Logic Consolidation
The ATF16V8B-15SI replaces networks of AND, OR, inverter, and decode gates with one configurable Flash PLD. Its 250-gate implementation capacity and 8 macrocells are useful when multiple combinational equations share common terms or when the logic must be changed without replacing discrete components. A 15 ns maximum pin-to-pin delay supports conventional control-speed signals, and the 20-SOIC package simplifies inspection and rework on industrial control boards where fine-pitch assembly is undesirable.
Recomendado
Data and Signal Routing
Programmable multiplexing, polarity correction, and signal-routing functions can be implemented in the ATF16V8B-15SI when they must be changed between product variants. The device offers as many as 16 inputs and 8 I/Os, allowing several control paths to be combined under a common Boolean equation. Its 15 ns delay is suitable for many asynchronous control and low-to-moderate-speed digital routing tasks, while nonvolatile Flash programming allows the same hardware revision to serve multiple board configurations.
Recomendado
Programmable Test and Measurement Logic
The ATF16V8B-15SI can implement configurable stimulus routing, measurement gating, mode selection, and instrument-interface logic. Eight macrocells provide enough capacity for several related Boolean functions, while the 15 ns maximum pin-to-pin delay fits many low-speed control and sequencing paths. Nonvolatile programming makes it practical to use the same board for multiple test configurations, and the 20-SOIC package is useful in laboratory, industrial, and service equipment where hand rework and through-hole-style mounting remain common.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATF16V8B-15SI — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATF16V8B-15SU | ATF16V8CZ-15SI | ATF16V8C-7SC | ATF16V8BQL-15SI | ATF16V8C-8SC |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Maximum Pin-to-Pin Delay | 15 ns | 15 ns | 15 ns | 7.5 ns | 15 ns | 8 ns |
| Device Family | ATF16V8B | ATF16V8B | ATF16V8CZ | ATF16V8C | ATF16V8B | ATF16V8C |
| Configuration Technology | Electrically erasable Flash memory | Electrically erasable Flash memory | Electrically erasable Flash memory | Electrically erasable Flash memory | Electrically erasable Flash memory | Electrically erasable Flash memory |
Diferenciadores clave
- Standard-power option within the ATF16V8B family (frente a ATF16V8BQL-15SI)
- Higher timing margin than the 15 ns target (frente a ATF16V8C-7SC)
- Identical speed and package with a selectable ordering suffix (frente a ATF16V8B-15SU)
Notas de diseño
Select the programming file and fuse-map architecture before assigning the board's I/O functions. ATF16V8B devices support combinational, complex combinatorial, registered, and mixed configurations, and the usable direction of individual pins depends on that choice. Validate the fuse map against the manufacturer's 20-pin pin-description table rather than assuming that every GAL16V8 drawing maps identically.
Provide a regulated 5 V supply and follow the decoupling recommendations in the manufacturer data sheet. Include a local bypass capacitor at the VCC pin and keep the supply return path short to the GND pin. If considering ATF16V8BQL-15SI for lower power, compare its operating-current behavior with the standard-power ATF16V8B-15SI across the actual output-state and frequency conditions.
Place the ATF16V8B-15SI close to the signals it decodes or gates to minimize propagation delay and susceptibility to board-level noise. Keep clock traces short, maintain a continuous ground reference, and avoid routing configurable I/O beneath long switching nets where possible. The 20-SOIC footprint provides generous lead spacing, but pin-1 orientation still requires careful board-layout verification.
Check both the external bus timing and the device's 15 ns maximum pin-to-pin delay, including setup, hold, and clock requirements for the selected registered architecture. ATF16V8C-7SC or ATF16V8C-8SC provides additional timing margin when the design does not have sufficient margin with a 15 ns device. Perform timing analysis with the production speed grade and operating conditions.
Información de cumplimiento
The manufacturer identifies the ATF16V8B family as having a green package, but no explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration was identified for this ordering code.
