GAL22V10D-15LPNI - 15ns 10-Macrocell E2CMOS PLD DIP-24 | Lattice
MPN： GAL22V10D-15LPNI ✗ 停產GAL22V10D-15LPNI 概覽
A PLD (Programmable Logic Device) is a digital integrated circuit whose logic function and interconnects are defined by the user after manufacture. Within the IC taxonomy, PLDs sit between fixed-function logic gates and full FPGAs: a PLD implements combinational and registered logic via a programmable AND/OR array with dedicated output macrocells, whereas an FPGA uses distributed look-up tables, block RAM and soft cores. The "22V10" naming convention means 22 inputs (12 dedicated + 10 feedback) feeding 10 macrocells with variable drive polarity — this generic footprint is supported across multiple vendors, including Lattice, Atmel/Microchip and AMD, giving designers drop-in second sources.
Key features of the GAL22V10D-15LPNI include 10 ns / 15 ns propagation delay grades, electrically erasable (E2CMOS) technology allowing 100+ reprogram cycles, in-system programmable architecture, a built-in security bit to lock the pattern, and low CMOS standby current with TTL-compatible I/O. The device is functionally and parametric compatible with standard bipolar and CMOS 22V10 devices, including the classic PAL22V10.
The GAL22V10D combines a high-performance CMOS process with Electrically Erasable (E2) floating gate technology. The 10 OLMCs are individually configurable as registered, combinatorial, or I/O with selectable output polarity, and feedback paths allow buried state machines. Unlike UV-erasable EPROM-based 22V10s, the E2CMOS cell can be erased electrically in-circuit, which simplifies prototyping and field upgrades.
Typical applications include address decoding and glue logic for microprocessor systems, state-machine and sequencer controllers, bus arbitration logic, peripheral interface adapters, and industrial control replacements of legacy bipolar PALs. Through-hole PDIP packaging suits legacy boards, test fixtures, and aerospace/industrial designs where DIP is preferred over surface mount.
When designing, remember the GAL22V10D-15LPNI requires a single 5 V supply (VCC = 4.75 V to 5.25 V) and the JEDEC-standard 22V10 fuse map. Use a Lattice-approved programmer (e.g., ispGAL22V10-compatible) to load the pattern; the security bit, once programmed, prevents readback of the device.
This page synthesizes distributor stock data, parametric alternatives, and practical design guidance not aggregated on any single manufacturer or distributor page, giving engineers a single reference for sourcing and second-sourcing the GAL22V10D-15LPNI.
直接替換替代品，適用於 GAL22V10D-15LPNI — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
GAL22V10D-15LP
✅ 直接替換📋 參考替代品（不在目錄中）
GAL22V10D-15LPI
✅ 直接替換📋 參考替代品（不在目錄中）
GAL22V10D-10LP
✅ 直接替換📋 參考替代品（不在目錄中）
ATF22V10C-15PU
✅ 直接替換📋 參考替代品（不在目錄中）
ATF22V10CQ-15PU
✅ 直接替換📋 參考替代品（不在目錄中）
ATF22V10CQZ-15PU
✅ 直接替換📋 參考替代品（不在目錄中）
GAL22V10D-15LPNI 最大額定值與電氣特性
| Product Type | Programmable Logic Device (PLD) / SPLD |
| Family | GAL22V10 (Generic 22V10 architecture) |
| Macrocells | 10 OLMCs |
| Propagation Delay (tPD max) | 15 ns |
| Maximum Operating Frequency (f_max) | 83.3 MHz |
| Technology | E2CMOS (Electrically Erasable CMOS) |
| Supply Voltage (VCC) | 4.75 V to 5.25 V (5 V nominal) |
| 工作溫度 | -40C to +85C (Industrial) |
| Inputs | 12 dedicated + 10 feedback |
| Reprogram Cycles | 100+ (electrically erasable) |
| Security Bit | Yes (pattern readback lock) |
| 封裝 | 24-pin PDIP (0.300", 7.62 mm) |
| 安裝類型 | Through-Hole (DIP) |
| JEDEC 22V10 Compatibility | Function / fuse map / parametric compatible |
GAL22V10D-15LPNI 腳位配置
| 腳位 1 | I0 — Dedicated input 0 |
| 腳位 2 | I1 — Dedicated input 1 |
| 腳位 3 | I2 — Dedicated input 2 |
| 腳位 4 | I3 — Dedicated input 3 |
| 腳位 5 | I4 — Dedicated input 4 |
| 腳位 6 | I5 — Dedicated input 5 |
| 腳位 7 | I6 — Dedicated input 6 |
| 腳位 8 | I7 — Dedicated input 7 |
| 腳位 9 | I8 — Dedicated input 8 |
| 腳位 10 | I9 — Dedicated input 9 |
| 腳位 11 | I10 — Dedicated input 10 |
| 腳位 12 | GND — Ground |
| 腳位 13 | I11 — Dedicated input 11 |
| 腳位 14 | MC0/I — Macrocell 0 / input |
| 腳位 15 | MC0 — Macrocell 0 I/O |
| 腳位 16 | MC1 — Macrocell 1 I/O |
| 腳位 17 | MC2 — Macrocell 2 I/O |
| 腳位 18 | MC3 — Macrocell 3 I/O |
| 腳位 19 | MC4 — Macrocell 4 I/O |
| 腳位 20 | MC5 — Macrocell 5 I/O |
| 腳位 21 | MC6 — Macrocell 6 I/O |
| 腳位 22 | MC7 — Macrocell 7 I/O |
| 腳位 23 | MC8 — Macrocell 8 I/O |
| 腳位 24 | VCC — +5V power supply |
典型應用
GAL22V10D-15LPNI 適用於 6 應用s: Microprocessor Address Decoding & Glue Logic, State-Machine & Sequencer Controllers, Bus Arbitration & Interface Logic, Legacy Industrial Control Replacement, Test & Measurement Fixtures, Aerospace & Defense Avionics (Legacy Sustainment).
Microprocessor Address Decoding & Glue Logic
The GAL22V10D-15LPNI's 12 dedicated inputs plus 10 macrocell feedback paths make it ideal for decoding the upper address bits of 8/16/32-bit microprocessor memory and I/O maps, with the 15 ns tPD comfortably fitting one CPU clock cycle at 33 MHz. Each of the 10 OLMCs can be configured as combinatorial or registered, enabling the device to replace multiple 74LS TTL decoder packages. The E2CMOS technology lets engineers iterate the decode map during prototyping without UV erasure, and the JEDEC-standard 22V10 footprint ensures the part fits existing through-hole DIP boards designed around the original PAL22V10.
推薦
State-Machine & Sequencer Controllers
With 10 OLMCs that can be configured as D flip-flops with feedback, the GAL22V10D-15LPNI implements Moore or Mealy state machines of up to 1024 states using the AND/OR array. The 83.3 MHz f_max and 15 ns tPD support high-speed sequencer timing in test equipment and industrial controllers. Industrial temperature grade (-40C to +85C) allows deployment in factory-floor equipment. The E2CMOS security bit locks the design into the device, preventing unauthorized pattern readback in production.
推薦
Bus Arbitration & Interface Logic
The 22V10 architecture's registered outputs and bidirectional I/O make the GAL22V10D-15LPNI well-suited for bus arbitration controllers, DMA handshaking, and legacy peripheral bus adapters such as ISA, STD, or VMEbus. The 5 V TTL-compatible I/O directly interfaces with classic peripheral ICs without level shifting. Pin-compatibility with the bipolar PAL22V10 means existing arbitration designs port without PCB changes, while gaining lower power consumption and re-programmability from the E2CMOS cell.
推薦
Legacy Industrial Control Replacement
Many industrial controllers designed in the 1980s and 1990s use PAL22V10 or GAL22V10 devices for I/O expansion, signal conditioning logic, and safety interlock decoding. The GAL22V10D-15LPNI provides a form-fit-function replacement for these legacy boards, with the industrial temperature grade suiting factory environments. Through-hole PDIP packaging supports hand-soldered repair and rework on existing equipment. When original PALs are obsolete, the GAL22V10D-15LPNI accepts the same JEDEC fuse map, simplifying field service.
推薦
Test & Measurement Fixtures
Through-hole DIP packaging is convenient for test fixtures, evaluation boards, and educational labs. The GAL22V10D-15LPNI plugs into standard 24-pin DIP sockets and is easily reprogrammed via commercial device programmers supporting the 22V10 JEDEC map. The 15 ns tPD allows construction of timing generators, pulse shapers, and custom waveform generators used in bench-top instrumentation. The industrial temperature grade ensures operation in lab and shop-floor environments.
推薦
Aerospace & Defense Avionics (Legacy Sustainment)
Many avionics and defense platforms certified in the 1990s and early 2000s contain GAL22V10D devices in through-hole DIP for flight control logic, cockpit display drivers, and navigation interfaces. The GAL22V10D-15LPNI supports sustainment programs maintaining these platforms. Industrial temperature grade (-40C to +85C) suits avionics bays. For new aerospace designs, modern rad-tolerant FPGAs such as the Microsemi RTG4 are recommended, but the GAL22V10D-15LPNI remains valuable for legacy sustainment and test equipment.
推薦
推薦產品摘要
工程參考資料，適用於 GAL22V10D-15LPNI — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | GAL22V10D-15LP | GAL22V10D-15LPI | GAL22V10D-10LP | ATF22V10C-15PU | ATF22V10CQ-15PU | ATF22V10CQZ-15PU |
|---|---|---|---|---|---|---|---|
| Package | 24-PDIP | 24-PDIP (same) | 24-PDIP (same) | 24-PDIP (same) | 24-PDIP (same) | 24-PDIP (same) | 24-PDIP (same) |
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Microchip Technology | Microchip Technology | Microchip Technology |
| Propagation Delay (tPD max) | 15 ns | 15 ns | 15 ns | 10 ns (faster) | 15 ns | 15 ns | 15 ns |
| Maximum Frequency (f_max) | 83.3 MHz | 83.3 MHz | 83.3 MHz | 100 MHz (faster) | 83.3 MHz | 83.3 MHz | 83.3 MHz |
| Macrocells | 10 OLMCs | 10 OLMCs | 10 OLMCs | 10 OLMCs | 10 OLMCs | 10 OLMCs | 10 OLMCs |
| Operating Temperature | -40C to +85C (Industrial) | 0C to +75C (Commercial) | 0C to +75C (Commercial) | 0C to +75C (Commercial) | -40C to +85C | -55C to +125C (Military) | -55C to +125C (Military) |
| Supply Voltage | 5 V (4.75 V to 5.25 V) | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Technology | E2CMOS (Electrically Erasable) | E2CMOS | E2CMOS | E2CMOS | E2CMOS | E2CMOS | E2CMOS |
主要差異化特點
- Industrial temperature grade (-40C to +85C) in 24-PDIP (對比GAL22V10D-15LP / GAL22V10D-15LPI)
- Cross-brand second source via Microchip ATF22V10C family (對比ATF22V10C-15PU)
- E2CMOS electrically erasable technology versus UV EPROM GAL22V10B (對比GAL22V10B-15LP)
設計說明
The GAL22V10D-15LPNI requires a single 5 V supply on pin 24, with pin 12 tied to ground. Per the Lattice GAL22V10 datasheet, VCC must remain within 4.75 V to 5.25 V; operation below 4.75 V may cause AC parameter degradation and PROM cell reliability issues. Decouple VCC with a 0.1 uF ceramic capacitor placed within 5 mm of the supply pin, plus a 10 uF bulk capacitor on the board. The E2CMOS standby current is much lower than the original bipolar PAL22V10, but dynamic Icc scales with f_max and capacitive loading on outputs.
Place the GAL22V10D-15LPNI in a 24-pin PDIP socket (e.g., 3M 2400-series or Mill-Max) when used in development or field-serviceable applications, so the device can be removed and reprogrammed. For production boards, direct through-hole soldering is acceptable. Route all 10 OLMC outputs away from the dedicated input pins to minimize crosstalk. The 22V10 architecture has no internal pull-ups on inputs; unused inputs must be tied directly to VCC or GND to prevent floating-input oscillation that increases Icc and may trigger spurious output transitions.
Three common pitfalls with the GAL22V10D-15LPNI: (1) Attempting to program it with a PAL22V10 fuse map generated for a bipolar device — while pin-compatible, the JEDEC map format requires conversion via a Lattice-approved compiler (e.g., ispLEVER classic, or PAL-to-GAL conversion tools). (2) Forgetting the security bit — once programmed, the device cannot be read back, so always archive the original JEDEC file. (3) Mixing DIP and surface-mount footprints across the design — the GAL22V10D-15LPNI is a through-hole DIP; for SMT designs use GAL22V10D-15QJN (PLCC-28) or GAL22V10D-15QPN (TBD package code) variants.
合規資訊
RoHS/REACH/lead-free status was not present in the verified web data and could not be verified. The GAL22V10D-15LPNI predates widespread RoHS adoption; the 'N' suffix typically indicates a lead-free terminal finish per Lattice naming conventions, but this is not confirmed by the provided data. AEC-Q100 not applicable to a non-automotive PLD.
