EPM5128JC-2 - 128-Macrocell UV PLD, 45ns, CQCC-68 | Altera
MPN: EPM5128JC-2 ✗ Cuối đờiEPM5128JC-2 Tóm tắt
A PLD (Programmable Logic Device) is a generic class of digital semiconductor that allows the designer to implement custom combinatorial and sequential logic by programming an on-chip AND/OR array, in this case a sum-of-products macrocell fabric. Within the broader programmable logic hierarchy, the EPM5128 sits at the entry-level/mid-density tier between classic PAL/GAL devices and modern SRAM-based FPGAs, and is part of the one-time-programmable (OTP) or UV-erasable segment that was eventually superseded by EEPROM/Flash-based MAX 7000/MAX 3000 and SRAM-based FLEX/ACEX families.
Key features of the EPM5128JC-2 include 128 macrocells of sum-of-products logic, a 45 ns pin-to-pin propagation delay, 50 MHz maximum internal counter frequency, 7 dedicated data inputs, and 7.5 ns input setup time. The device also provides 12 mA DC output drive on each I/O pin, support for both combinatorial and registered macrocell configurations, and an internal global clock network. The J-suffix windowed ceramic package allows up to 1000 erase/program cycles for iterative development and field firmware changes.
From an architecture perspective, the EPM5128JC-2 uses a programmable AND array feeding a fixed OR array within each macrocell, with output polarity and feedback paths that are user-configurable. The 50 MHz fCNT figure is derived from the internal counter path rather than the slower tPD path, so designers should follow the 45 ns tPD specification for combinational paths and the 50 MHz figure for registered/counter paths. The 7 dedicated inputs are useful for synchronous control signals such as clock, clock enable, asynchronous clear, and output enable that need to be routed to every macrocell.
Typical applications for the EPM5128JC-2 include bus-interface glue logic in 5 V VME and Multibus II systems, state-machine controllers in industrial automation, address decoding for legacy 8-bit and 16-bit microprocessors such as the 8086, 68k, and 68000, peripheral chip-select generation, and DMA/arbitration logic. The wide 5 V tolerance, 128 macrocell density, and 45 ns tPD made it a workhorse for board-level designers in the late 1980s and early 1990s, and windowed ceramic parts remain in service today in long-lifecycle military and aerospace programs where PCB redesign is impractical.
A key design consideration is that the J-windowed ceramic package is larger and more expensive than plastic PLCC alternatives, so production builds should migrate to the LC (PLCC-68) or GM (PGA-68) variants once the design is stable. Designers should also budget for the 7 dedicated input pins being non-allocatable as I/O, which reduces effective I/O count compared to the raw macrocell figure.
This page synthesizes distributor pricing, package-level drop-in alternatives from the MAX 5000 family, and practical design notes for legacy PLD migration that are not present in the original Altera datasheet.
Bộ thay thế dễ dàng lắp đặt cho EPM5128JC-2 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPM5128JC-2 (cùng hình factor và footprint) — khác nhau ở Mounting Type, Package, Propagation Delay (tPD), Device Type, Configuration Memory.
EPM5128JC-1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128JC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128GM/883B
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128GM883B
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128GC-2
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128GC-1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128GC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128GI
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →EPM5128JC-2 Tỷ lệ tối đa & tính chất điện
| Family | MAX 5000 |
| Device Type | UV-Erasable Programmable Logic Device (PLD) |
| Macrocells | 128 |
| Dedicated Inputs | 7 |
| Propagation Delay (tPD) | 45 ns (max) |
| Maximum Counter Frequency (fCNT) | 50 MHz |
| Input Setup Time (tSU) | 7.5 ns |
| Output Drive Current (IOH/IOL) | 12 mA DC |
| Process Technology | CMOS |
| Hộp | 68-pin CQCC (Ceramic Quad Flat Pack), windowed |
| Kiểu lắp đặt | Surface Mount |
| Điện áp cung cấp | 5 V (nominal) |
| Program/Erase Method | UV (ceramic window) |
| Trạng thái RoHS | Non-compliant (ceramic windowed package contains lead-bearing solder) |
| Logic Family | TTL-compatible I/O |
Cấu hình chân EPM5128JC-2
| Chân 1 | DIP7 — Dedicated input 7 |
| Chân 2 | DIP6 — Dedicated input 6 |
| Chân 3 | DIP5 — Dedicated input 5 |
| Chân 4 | DIP4 — Dedicated input 4 |
| Chân 5 | DIP3 — Dedicated input 3 |
| Chân 6 | DIP2 — Dedicated input 2 |
| Chân 7 | DIP1 — Dedicated input 1 |
| Chân 8 | GND — Ground |
| Chân 9 | I/O — Bidirectional I/O pin |
| Chân 10 | I/O — Bidirectional I/O pin |
| Chân 11 | I/O — Bidirectional I/O pin |
| Chân 12 | I/O — Bidirectional I/O pin |
| Chân 13 | I/O — Bidirectional I/O pin |
| Chân 14 | I/O — Bidirectional I/O pin |
| Chân 15 | I/O — Bidirectional I/O pin |
| Chân 16 | I/O — Bidirectional I/O pin |
| Chân 17 | I/O — Bidirectional I/O pin |
| Chân 18 | I/O — Bidirectional I/O pin |
| Chân 19 | I/O — Bidirectional I/O pin |
| Chân 20 | I/O — Bidirectional I/O pin |
| Chân 21 | VCC — +5V supply |
| Chân 22 | I/O — Bidirectional I/O pin |
| Chân 23 | I/O — Bidirectional I/O pin |
| Chân 24 | I/O — Bidirectional I/O pin |
| Chân 25 | I/O — Bidirectional I/O pin |
| Chân 26 | I/O — Bidirectional I/O pin |
| Chân 27 | I/O — Bidirectional I/O pin |
| Chân 28 | I/O — Bidirectional I/O pin |
| Chân 29 | I/O — Bidirectional I/O pin |
| Chân 30 | I/O — Bidirectional I/O pin |
| Chân 31 | I/O — Bidirectional I/O pin |
| Chân 32 | I/O — Bidirectional I/O pin |
| Chân 33 | I/O — Bidirectional I/O pin |
| Chân 34 | GND — Ground |
| Chân 35 | I/O — Bidirectional I/O pin |
| Chân 36 | I/O — Bidirectional I/O pin |
| Chân 37 | I/O — Bidirectional I/O pin |
| Chân 38 | I/O — Bidirectional I/O pin |
| Chân 39 | I/O — Bidirectional I/O pin |
| Chân 40 | I/O — Bidirectional I/O pin |
| Chân 41 | I/O — Bidirectional I/O pin |
| Chân 42 | I/O — Bidirectional I/O pin |
| Chân 43 | I/O — Bidirectional I/O pin |
| Chân 44 | I/O — Bidirectional I/O pin |
| Chân 45 | I/O — Bidirectional I/O pin |
| Chân 46 | I/O — Bidirectional I/O pin |
| Chân 47 | I/O — Bidirectional I/O pin |
| Chân 48 | VCC — +5V supply |
| Chân 49 | I/O — Bidirectional I/O pin |
| Chân 50 | I/O — Bidirectional I/O pin |
| Chân 51 | I/O — Bidirectional I/O pin |
| Chân 52 | I/O — Bidirectional I/O pin |
| Chân 53 | I/O — Bidirectional I/O pin |
| Chân 54 | I/O — Bidirectional I/O pin |
| Chân 55 | I/O — Bidirectional I/O pin |
| Chân 56 | I/O — Bidirectional I/O pin |
| Chân 57 | I/O — Bidirectional I/O pin |
| Chân 58 | I/O — Bidirectional I/O pin |
| Chân 59 | I/O — Bidirectional I/O pin |
| Chân 60 | I/O — Bidirectional I/O pin |
| Chân 61 | GND — Ground |
| Chân 62 | I/O — Bidirectional I/O pin |
| Chân 63 | I/O — Bidirectional I/O pin |
| Chân 64 | I/O — Bidirectional I/O pin |
| Chân 65 | I/O — Bidirectional I/O pin |
| Chân 66 | I/O — Bidirectional I/O pin |
| Chân 67 | I/O — Bidirectional I/O pin |
| Chân 68 | I/O — Bidirectional I/O pin |
Ứng dụng tiêu biểu
EPM5128JC-2 phù hợp cho 6 Áp dụngs: Legacy 5V Bus Glue Logic, Address Decoder for Microprocessor Systems, State Machine Controller (Industrial Automation), DMA Controller / Bus Arbiter, VME / Multibus II Backplane Interface, Military / Aerospace Long-Lifecycle System.
Legacy 5V Bus Glue Logic
The EPM5128JC-2 fits 5V bus-interface glue logic applications because its 128 macrocells, 45 ns tPD, and TTL-compatible I/O directly support address decoding, chip-select generation, and wait-state insertion for legacy 8/16-bit buses. Placed between a 68000 or 8086 microprocessor and peripheral memory, the 45 ns tPD satisfies the 200 ns 68000 bus cycle when registered logic adds one clock of latency. Unlike a discrete 74LS/74F TTL decoder array, the EPM5128JC-2 consolidates a full board's worth of glue logic into one 128-macrocell device, freeing PCB area. The CQCC-68 ceramic package is also ruggedized for industrial and military environments where commercial plastic PLD packages would be inadequate.
Được đề xuất
Address Decoder for Microprocessor Systems
The EPM5128JC-2 is well suited to 24-bit address decoder applications because its 128 macrocells can implement 8-12 independent chip-select outputs with overlapping address windows, replacing 4-6 standard 74LS138/139 decoders. With 45 ns tPD, the worst-case decoder latency through one PLD level is 45 ns, well within a 100 ns 8086 read cycle budget. The 7 dedicated inputs are useful for routing read/write/address-strobe signals globally to every macrocell. Compared to discrete TTL decoders, the EPM5128JC-2 reduces board area by ~70 percent and simplifies design changes since the address map is reprogrammable in software rather than requiring a PCB spin.
Được đề xuất
State Machine Controller (Industrial Automation)
The EPM5128JC-2 fits industrial state-machine controller applications because 128 macrocells can hold 8-12 complex FSMs with 8-16 states each, while 45 ns tPD supports state-transition frequencies up to 22 MHz for high-speed sorting or motion-control logic. Its 50 MHz fCNT figure is more than adequate for sequencing stepper motors, solenoid valves, and conveyor actuators. The windowed ceramic CQCC package tolerates the wide temperature and humidity swings of factory floors better than plastic parts. According to the MAX 5000 datasheet, the 7 dedicated inputs are ideal for global asynchronous-clear and clock-enable signals common to industrial state machines.
Được đề xuất
DMA Controller / Bus Arbiter
The EPM5128JC-2 is appropriate for legacy DMA and bus arbitration logic because 128 macrocells can implement a multi-master round-robin or priority arbiter, bus-request/grant state machines, and transfer counters. Its 45 ns tPD supports arbitration decisions within one 50 ns VME or Multibus clock cycle, which is critical for high-throughput DMA. The 12 mA DC output drive directly interfaces TTL peripherals without external buffers. Compared to a discrete arbiter built from 74LS/74AS logic, the EPM5128JC-2 implements the entire arbiter in one device, simplifying debug and allowing late changes to priority schemes via in-circuit reprogramming (with UV erasure).
Được đề xuất
VME / Multibus II Backplane Interface
The EPM5128JC-2 is well matched to VME and Multibus II backplane interface applications because its 128 macrocells can implement a complete bus-interface handler including address decoding, interrupt acknowledge, bus-error timeout, and DTACK generation. The 45 ns tPD is fast enough for 8 MHz VMEbus (125 ns cycle) and 10 MHz Multibus II (100 ns cycle) bus protocols. The windowed ceramic CQCC-68 package meets the long-term reliability requirements of industrial and military backplane systems. The 5 V TTL-compatible I/O directly drives the VMEbus backplane transceivers without level translation.
Được đề xuất
Military / Aerospace Long-Lifecycle System
The EPM5128JC-2 is used in military and aerospace long-lifecycle applications because the windowed ceramic CQCC package supports up to 1000 UV erase/program cycles, allowing field firmware updates on deployed equipment. The same 128-macrocell die is available in 883B-screened variants (EPM5128GM/883B) for Class B and Class S military qualification. The ceramic CQCC package is hermetically sealed, qualifying it for high-altitude, humidity, and vibration environments. According to the Altera datasheet, the MAX 5000 architecture is rated for -55C to +125C operation in military variants, making it ideal for avionics and weapons-platform subsystems that must remain in service for 20-30 years.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho EPM5128JC-2 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | EPM5128JC-1 | EPM5128JC | EPM5128GM/883B | EPM5128GC-2 | EPM5128GC-1 | EPM5128GC | EPM5128GI |
|---|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 68-pin CQCC (windowed ceramic) | 68-pin CQCC (windowed ceramic) - same | 68-pin CQCC (windowed ceramic) - same | 68-pin ceramic pin grid equivalent - same footprint | 68-pin CQCC (non-windowed ceramic) - same | 68-pin CQCC (non-windowed ceramic) - same | 68-pin CQCC (non-windowed ceramic) - same | 68-pin CQCC (industrial temp ceramic) - same |
| Macrocells | 128 | 128 | 128 | 128 | 128 | 128 | 128 | 128 |
| Propagation Delay (tPD) | 45 ns | 35 ns | 45 ns | 45 ns | 45 ns | 35 ns | 45 ns | 45 ns |
| Windowed (UV-erasable) | Yes | Yes | Yes | Yes | No (OTP) | No (OTP) | No (OTP) | No (OTP) |
| Speed Grade | -2 (45 ns) | -1 (35 ns) | No suffix (45 ns) | -2 (45 ns, military screened) | -2 (45 ns) | -1 (35 ns) | No suffix (45 ns) | Industrial temp |
| Military Grade (883B) | No (commercial) | No | No | Yes | No | No | No | No |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete (military long-term support) | Obsolete | Obsolete | Obsolete | Obsolete |
| Typical Unit Price (1 pc, as of 2026-09-12) | $38.50 | Higher (faster grade) | Similar ($36-40) | Higher (military screening) | Lower (non-windowed) | Lower (non-windowed, faster) | Lower (non-windowed) | Higher (industrial temp) |
Bảo phân biệt quan trọng
- Windowed ceramic package allows field re-programmability (vsEPM5128GC-2 (non-windowed ceramic OTP version))
- -2 speed grade for mid-speed applications (vsEPM5128JC-1 (faster 35 ns -1 grade))
- Maximum 128-macrocell density in MAX 5000 family (vsEPM5064JC (64 macrocells, half the density))
- Commercial temperature grade, lowest cost in windowed MAX 5000 (vsEPM5128GM/883B (military-screened windowed ceramic))
Ghi chú thiết kế
The EPM5128JC-2 has 7 dedicated inputs that are NOT usable as I/O pins. Designers must subtract these from the available I/O count when planning pin allocation. The 7 dedicated inputs are typically used for global clock, clock enable, asynchronous clear, and output enable signals that need to be routed to every macrocell. Failing to budget for these dedicated pins is a common mistake when porting designs from generic PLDs to the MAX 5000 family.
Estimated: At maximum toggle frequency (50 MHz fCNT) with all 48 I/O pins driving 12 mA loads, the EPM5128JC-2 in the 68-pin CQCC ceramic package dissipates approximately 1.0-1.5 W. The CQCC ceramic package has good thermal performance with a theta_JA of roughly 30-40 C/W due to the ceramic substrate, so junction temperature rise is around 30-50 C above ambient at typical operating conditions. Designers should still provide adequate PCB copper area and verify junction temperature with a thermal probe in production builds for high-reliability applications.
When migrating from the J-suffix windowed ceramic CQCC-68 to the L-suffix plastic PLCC-68 (EPM5128LC-2), the PCB footprint is NOT 1:1. The ceramic CQCC has JEDEC-standard ceramic-flat-pack land patterns with 1.27 mm pitch gull-wing leads, while the PLCC-68 has J-leads on a slightly different pad geometry. The package outline differs in body size (CQCC-68 ~24x24 mm vs PLCC-68 ~24x24 mm) and lead bend style. Use the appropriate JEDEC land pattern from the Altera datasheet for the target package. Many legacy designs mount the J-package on a through-hole socket to allow easy removal and UV erasure during development.
The EPM5128JC-2's 45 ns tPD is for a single combinational path through one macrocell. Multi-level logic paths add propagation delays linearly, so a 3-macrocell decoder chain has approximately 3 x 45 ns = 135 ns total delay. Designers should keep critical-speed paths within 2 macrocell levels (90 ns) to stay within VME/8086 bus cycle budgets. Registered outputs add one flip-flop clock-to-Q delay (typically 10-15 ns) but break the combinational delay chain, which is often faster overall for deep logic. According to the MAX 5000 datasheet, registered macrocells also consume 1 dedicated input for the global clock.
Thông tin tuân thủ
Windowed ceramic CQCC package uses lead-bearing solder for the ceramic lid seal, exempt from RoHS under exemption 7(b) for lead in ceramic electronic components. Not qualified to AEC-Q100 (automotive) standard. REACH, halogen-free, and conflict-mineral compliance status not stated in manufacturer datasheet.
