Altera

EPM3128ATC144-5 - MAX 3000A CPLD, 128 Macrocells, 5ns | Altera

MPN: EPM3128ATC144-5 ✗ 停產
3.3 V Vdss TQFP-144 (Plastic, 1.0 mm pitch, 22x22 mm) Package 192.3 MHz Speed EEPROM (non-volatile) Memory
MOQ: 1 |

EPM3128ATC144-5 概覽

The Altera EPM3128ATC144-5 is a member of the MAX 3000A family of high-performance, low-cost CMOS EEPROM-based complex programmable logic devices (CPLDs), delivering 128 macrocells, 2,500 system gates, and a 7.5 ns propagation delay in a 144-pin TQFP (TQ144) package rated for commercial 0C to 70C operation. Built on a multi-volt, multi-vendor in-system programmable (ISP) architecture, the device operates from a 3.3 V core supply and supports 5.0 V, 3.3 V, and 2.5 V multi-volt I/O interfacing, allowing direct connection to legacy and modern logic families without external level shifters. The MAX 3000A non-volatile ISP is compliant with the IEEE Std. 1532 specification, allowing concurrent ISP from multiple PLD vendors.

A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic IC that combines multiple PAL-like macrocell arrays on a single die, connected through a programmable interconnect matrix. The MAX 3000A family belongs to the broader hierarchy: CPLD -> programmable logic device (PLD) -> logic IC -> semiconductor. CPLDs are typically chosen over FPGAs for glue-logic, bus-interface, state-machine, and power-up deterministic applications because their EEPROM configuration cells boot in microseconds, not milliseconds, and retain state without external boot memory.

Key features include 128 macrocells arranged in 8 logic array blocks (LABs), 250 usable I/O pins within the package (with 96 user I/Os exposed externally per the 144-pin TQFP), two global clock networks with clear and clock-enable control on every register, programmable interconnect, JTAG boundary-scan testing, and built-in IEEE 1149.1 (JTAG) support. The -5 speed grade corresponds to a 7.5 ns pin-to-pin propagation delay (tPD), supporting designs with up to 192.3 MHz internal counter performance. Power consumption is typically 130 mA at 3.3 V, with standby current as low as 5 mA.

The architecture is built on 0.30 um CMOS EEPROM technology with four layers of metal interconnect, exposing the user to a deterministic timing model. The MAX 3000A delivers predictable, simulator-friendly timing across Pterms, LABs, and the interconnect matrix (PIA), with no hidden routing delays - a property that distinguishes it from SRAM-based FPGAs.

Typical applications include bus-interface bridging, address decoding and DMA control in industrial backplanes, glue-logic replacement for 7400-series TTL in legacy designs, peripheral controllers in printers and scanners, and LED display multiplexing. Designers frequently choose the MAX 3000A family when a low-cost, non-volatile, deterministic-logic solution is needed in a familiar 3.3 V ecosystem.

When designing with the EPM3128ATC144-5, ensure each I/O bank has its VCCIO rail properly decoupled and matched to the driven logic level (3.3 V or 2.5 V), because mixing I/O standards in the same bank can damage the device. Provide a minimum of 0.1 uF ceramic bypass on each VCC and VCCIO pin, and consult the MAX 3000A Family Data Sheet for ISP programming voltage sequencing when using JTAG.

This page synthesizes distributor pricing, drop-in same-family Altera alternatives, datasheet-derived design notes, and an AEO-optimized FAQ that are not consolidated on any single manufacturer or distributor page.

直接替換替代品,適用於 EPM3128ATC144-5 — 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。

此系列的變體

與下列產品可直接替換的同系列型號: EPM3128ATC144-5 (相同外形與佔位) — 差異在於 Package, Operating Temperature, In-System Programmability, Usable Gates, RoHS Status.

Intel
Package: 100-pin TQFP (Fine Line)
Operating Temperature: 0 °C to 70 °C (Commercial)
In-System Programmability: Yes, IEEE Std. 1532 compliant
比較對象 EPM3128ATC144-5 →
Altera
Package: 144-pin TQFP (TQ144)
In-System Programmability: IEEE Std. 1532 compliant
Usable Gates: 2,500 (typical)
比較對象 EPM3128ATC144-5 →
Intel
Package: 144-pin TQFP
Operating Temperature: 0 °C to +70 °C (commercial)
Usable Gates: 2,500 (up to 10,000 for full family)
比較對象 EPM3128ATC144-5 →
Altera
Package: 144-pin TQFP (20x20 mm)
Operating Temperature: 0C to 70C (Commercial)
In-System Programmability: Yes (3.3-V via JTAG)
比較對象 EPM3128ATC144-5 →

EPM3128ATC144-5N

✅ 直接替換
Altera
📦 TQFP-144
MAX 3000A · CPLD - Complex Programmable Logic Device · CMOS · 128 · 2500 · 96 · 5 ns · up to 227.3 MHz

聯絡詢價

查看資料表 →

EPM3128ATC144-10

✅ 直接替換
Altera
📦 TQFP-144
MAX 3000A · CPLD (Complex Programmable Logic Device) · 128 · 96 · 2,500 (typical) · 4 Logic Array Blocks · 10 ns (speed grade -10) · Up to 227.3 MHz

聯絡詢價

查看資料表 →

EPM3128ATC144-10N

✅ 直接替換
Intel
📦 TQFP-144
MAX 3000A · CPLD (Complex Programmable Logic Device) · 128 · 2,500 (up to 10,000 for full family) · 8 · 96 · 10 ns (speed grade -10) · 98 MHz

聯絡詢價

查看資料表 →

EPM3128ATC100-5

✅ 直接替換 ⚠️ 規格未經驗證
Intel
📦 TQFP-100
MAX 3000A · CPLD - MAX 3000A · 128 · 2,500 · 80 · 4 · 5 ns (commercial); 7.5 ns · 192.3 MHz

聯絡詢價

查看資料表 →

EPM3128ATC144-5 最大額定值與電氣特性

Family MAX 3000A
Logic Family CMOS
Device Type CPLD (Complex Programmable Logic Device)
Number of Macrocells 128
Number of Logic Array Blocks (LABs) 8
Number of User I/Os 96
Device System Gates 2500
Product Terms per Macrocell 32
Propagation Delay (tPD) 7.5 ns
Maximum Internal Frequency 192.3 MHz
Number of Global Clocks 2
Program Memory Type EEPROM (non-volatile)
Supply Voltage (Core) 3.3 V
Multi-Volt I/O Voltage 2.5 V / 3.3 V / 5.0 V tolerant
In-System Programmability Yes (IEEE Std. 1532 compliant)
JTAG / IEEE 1149.1 Yes (boundary-scan + ISP)
工作溫度 0C to +70C (Commercial)
封裝 TQFP-144 (Plastic, 1.0 mm pitch, 22x22 mm)
Process Technology 0.30 um CMOS EEPROM, 4 metal layers
RoHS 狀態 Not Compliant (per Arrow distributor listing)
ECCN EAR99
HTS Code 8542.31.00.55

EPM3128ATC144-5 腳位配置

TQFP-144 Package Pinout Diagram TQFP-144 20x20mm, P0.5mm, JEDEC MS-026. 1 36 TQFP-144
腳位 1 I/O — User I/O pin (bank dependent on layout)
腳位 2 I/O — User I/O pin
腳位 3 I/O — User I/O pin
腳位 4 I/O — User I/O pin
腳位 5 I/O — User I/O pin
腳位 6 I/O — User I/O pin
腳位 7 I/O — User I/O pin
腳位 8 I/O — User I/O pin
腳位 9 I/O — User I/O pin
腳位 10 I/O — User I/O pin
腳位 11 I/O — User I/O pin
腳位 12 I/O — User I/O pin
腳位 13 GND — Ground
腳位 14 I/O — User I/O pin
腳位 15 I/O — User I/O pin
腳位 16 I/O — User I/O pin
腳位 17 I/O — User I/O pin
腳位 18 I/O — User I/O pin
腳位 19 I/O — User I/O pin
腳位 20 I/O — User I/O pin
腳位 21 I/O — User I/O pin
腳位 22 I/O — User I/O pin
腳位 23 I/O — User I/O pin
腳位 24 I/O — User I/O pin
腳位 25 I/O — User I/O pin
腳位 26 I/O — User I/O pin
腳位 27 I/O — User I/O pin
腳位 28 I/O — User I/O pin
腳位 29 I/O — User I/O pin
腳位 30 I/O — User I/O pin
腳位 31 I/O — User I/O pin
腳位 32 GND — Ground
腳位 33 I/O — User I/O pin
腳位 34 I/O — User I/O pin
腳位 35 I/O — User I/O pin
腳位 36 I/O — User I/O pin
腳位 37 I/O — User I/O pin
腳位 38 I/O — User I/O pin
腳位 39 I/O — User I/O pin
腳位 40 I/O — User I/O pin
腳位 41 I/O — User I/O pin
腳位 42 I/O — User I/O pin
腳位 43 I/O — User I/O pin
腳位 44 I/O — User I/O pin
腳位 45 I/O — User I/O pin
腳位 46 I/O — User I/O pin
腳位 47 I/O — User I/O pin
腳位 48 I/O — User I/O pin
腳位 49 I/O — User I/O pin
腳位 50 GND — Ground
腳位 51 I/O — User I/O pin
腳位 52 I/O — User I/O pin
腳位 53 I/O — User I/O pin
腳位 54 I/O — User I/O pin
腳位 55 I/O — User I/O pin
腳位 56 I/O — User I/O pin
腳位 57 I/O — User I/O pin
腳位 58 I/O — User I/O pin
腳位 59 I/O — User I/O pin
腳位 60 I/O — User I/O pin
腳位 61 I/O — User I/O pin
腳位 62 I/O — User I/O pin
腳位 63 I/O — User I/O pin
腳位 64 I/O — User I/O pin
腳位 65 I/O — User I/O pin
腳位 66 I/O — User I/O pin
腳位 67 I/O — User I/O pin
腳位 68 GND — Ground
腳位 69 I/O — User I/O pin
腳位 70 I/O — User I/O pin
腳位 71 I/O — User I/O pin
腳位 72 I/O — User I/O pin
腳位 73 I/O — User I/O pin
腳位 74 I/O — User I/O pin
腳位 75 I/O — User I/O pin
腳位 76 I/O — User I/O pin
腳位 77 I/O — User I/O pin
腳位 78 I/O — User I/O pin
腳位 79 I/O — User I/O pin
腳位 80 I/O — User I/O pin
腳位 81 I/O — User I/O pin
腳位 82 I/O — User I/O pin
腳位 83 I/O — User I/O pin
腳位 84 I/O — User I/O pin
腳位 85 I/O — User I/O pin
腳位 86 GND — Ground
腳位 87 I/O — User I/O pin
腳位 88 I/O — User I/O pin
腳位 89 I/O — User I/O pin
腳位 90 I/O — User I/O pin
腳位 91 I/O — User I/O pin
腳位 92 I/O — User I/O pin
腳位 93 I/O — User I/O pin
腳位 94 I/O — User I/O pin
腳位 95 I/O — User I/O pin
腳位 96 I/O — User I/O pin
腳位 97 I/O — User I/O pin
腳位 98 I/O — User I/O pin
腳位 99 I/O — User I/O pin
腳位 100 I/O — User I/O pin
腳位 101 I/O — User I/O pin
腳位 102 I/O — User I/O pin
腳位 103 I/O — User I/O pin
腳位 104 GND — Ground
腳位 105 I/O — User I/O pin
腳位 106 I/O — User I/O pin
腳位 107 I/O — User I/O pin
腳位 108 I/O — User I/O pin
腳位 109 I/O — User I/O pin
腳位 110 I/O — User I/O pin
腳位 111 I/O — User I/O pin
腳位 112 I/O — User I/O pin
腳位 113 I/O — User I/O pin
腳位 114 I/O — User I/O pin
腳位 115 I/O — User I/O pin
腳位 116 I/O — User I/O pin
腳位 117 I/O — User I/O pin
腳位 118 I/O — User I/O pin
腳位 119 I/O — User I/O pin
腳位 120 I/O — User I/O pin
腳位 121 I/O — User I/O pin
腳位 122 GND — Ground
腳位 123 I/O — User I/O pin
腳位 124 I/O — User I/O pin
腳位 125 I/O — User I/O pin
腳位 126 I/O — User I/O pin
腳位 127 I/O — User I/O pin
腳位 128 I/O — User I/O pin
腳位 129 I/O — User I/O pin
腳位 130 I/O — User I/O pin
腳位 131 I/O — User I/O pin
腳位 132 I/O — User I/O pin
腳位 133 I/O — User I/O pin
腳位 134 I/O — User I/O pin
腳位 135 I/O — User I/O pin
腳位 136 I/O — User I/O pin
腳位 137 I/O — User I/O pin
腳位 138 I/O — User I/O pin
腳位 139 I/O — User I/O pin
腳位 140 GND — Ground
腳位 141 I/O — User I/O pin
腳位 142 I/O — User I/O pin
腳位 143 I/O — User I/O pin
腳位 144 I/O — User I/O pin

典型應用

EPM3128ATC144-5 適用於 6 應用s: Industrial Bus Interface Bridging, Glue-Logic Replacement for 7400-Series TTL, Printer and Scanner Peripheral Controllers, LED Display Multiplexing and Panel Drivers, Legacy Industrial Control Boards, Address Decoding and DMA Arbitration.

🏭

Industrial Bus Interface Bridging

The EPM3128ATC144-5 bridges legacy 5 V TTL peripherals to a 3.3 V microcontroller or FPGA bus, with its multi-volt I/O handling 5.0 V, 3.3 V, and 2.5 V logic on the same die. The 128 macrocells and 96 user I/Os comfortably absorb glue logic, address decoding, and handshake-protocol state machines that previously required multiple 7400-series TTL chips, while the 7.5 ns tPD keeps bus-to-bus latency negligible. Unlike SRAM-based FPGAs, the EEPROM-based MAX 3000A boots in microseconds, so power-on deterministic logic is available immediately, which is critical for backplane arbitration in industrial controllers.

🔧

Glue-Logic Replacement for 7400-Series TTL

Engineers use the EPM3128ATC144-5 to consolidate 7400-series discrete logic - such as 74LS138 decoders, 74LS245 transceivers, and 74LS374 registers - into a single non-volatile CPLD. With 2,500 system gates, 128 macrocells, and 32 product terms per macrocell, the device absorbs equivalent circuitry of 15-25 discrete TTL packages while improving timing predictability. The 3.3 V core with multi-volt I/O allows direct interface to both 5 V and 3.3 V devices on the same board, and the IEEE Std. 1532 ISP permits in-system firmware updates without removing the chip from the PCB.

🖥️

Printer and Scanner Peripheral Controllers

The EPM3128ATC144-5 serves as a peripheral controller in legacy printers and document scanners, handling stepper-motor sequencing, sensor-multiplexing, and high-speed parallel-data routing between the imaging ASIC and the main processor. Its 7.5 ns tPD and 192.3 MHz maximum internal frequency handle parallel-port data rates that exceed 50 MHz, while the 96 user I/Os accommodate multiple motor-driver signals and opto-sensor inputs without external buffers. The non-volatile EEPROM configuration retains controller logic across power cycles, enabling instant paper-feed and image-acquisition startup, which is preferred over SRAM FPGAs that require boot-load delay.

💡

LED Display Multiplexing and Panel Drivers

The EPM3128ATC144-5 drives large LED dot-matrix panels by time-multiplexing row/column lines and generating per-frame refresh logic, taking advantage of its 96 user I/Os and 7.5 ns tPD for flicker-free scanning rates up to 1 kHz. The two global clock networks with per-register clock-enable control let designers implement hardware PWM dimming on each row, while the multi-volt I/O interfaces directly with 5 V LED-driver shift registers without level shifters. The non-volatile configuration stores display-pattern tables in adjacent macrocells, eliminating the need for external boot memory.

🏭

Legacy Industrial Control Boards

The EPM3128ATC144-5 is widely deployed in legacy industrial control boards where 25-year design lifecycle support is critical, including PLC backplanes, motor-drive signal conditioning, and SCADA interface cards. Its 0C to 70C commercial temperature range covers most factory-floor environments, while the EEPROM non-volatile configuration eliminates the reliability risk of SRAM-based boot failure in unattended installations. Engineers maintain installed bases with this part because the 144-pin TQFP footprint has been standardized across the MAX 3000A family, simplifying board rev management.

💾

Address Decoding and DMA Arbitration

The EPM3128ATC144-5 is used for high-speed address decoding and DMA arbitration in embedded systems, where its 7.5 ns tPD and deterministic timing allow wait-state generation and bus-grant logic with sub-10 ns latency. The 32 product terms per macrocell accommodate wide-decode trees (24-bit to 32-bit address spaces) in a single logic level, avoiding the multi-level decode penalty that discrete PAL devices incur. The 2,500 system gates and 8 LABs provide the headroom needed for both combinatorial decoding and registered state-machine channels on the same die.

What is the propagation delay of the EPM3128ATC144-5?
The EPM3128ATC144-5 has a pin-to-pin propagation delay (tPD) of 7.5 ns, corresponding to the -5 speed grade in the MAX 3000A family. According to the Altera MAX 3000A Family Data Sheet, this speed grade also supports internal counter frequencies up to 192.3 MHz, making the part suitable for bus-interface and state-machine designs where deterministic timing is required.
How many macrocells and logic array blocks does the EPM3128ATC144-5 contain?
The EPM3128ATC144-5 contains 128 macrocells organized into 8 logic array blocks (LABs), giving it a usable gate capacity of 2,500 system gates. Each macrocell provides 32 product terms for combinatorial or registered logic, with two global clock networks and per-register clock-enable control, per the Altera MAX 3000A datasheet.
Is the EPM3128ATC144-5 still in production?
The EPM3128ATC144-5 is listed as Obsolete by Arrow Electronics and is no longer in active production by Altera (now Intel FPGA). Distributors such as DigiKey and Mouser still list the part, but new inventory is limited to remaining channel stock and the secondary market, so engineers should design with care and consider newer MAX II or MAX V alternatives for new designs.
What is the difference between EPM3128ATC144-5 and EPM3128ATC144-5N?
The EPM3128ATC144-5N is the lead-free (Pb-free) version of the EPM3128ATC144-5, otherwise identical in pinout, macrocell count, and speed grade. The -5N variant uses lead-free terminations compliant with RoHS soldering profiles, while the original -5 is not RoHS compliant per the Arrow distributor listing. Both share the same 144-pin TQFP package and are drop-in compatible.
Is the EPM3128ATC144-5 pin-compatible with the EPM3128ATC144-10?
Yes, the EPM3128ATC144-5 and EPM3128ATC144-10 are pin-to-pin compatible in the same 144-pin TQFP package; the only difference is the speed grade (-5 is 7.5 ns tPD, -10 is 10 ns tPD). The -10 variant is slower and typically cheaper, so the -10 can be substituted for the -5 when timing margins allow, but the -5 cannot reliably replace the -10 in already-shipping designs.
What package does the EPM3128ATC144-5 use?
The EPM3128ATC144-5 ships in a 144-pin Thin Quad Flat Pack (TQFP) with 0.5 mm lead pitch (some sources list 1.0 mm pitch - consult the device marking), measuring approximately 22x22 mm. The '144' suffix in the part number explicitly denotes the 144-pin TQFP package, distinguishing it from the 100-pin variants (EPM3128ATC100) and 256-pin variants.
What is the operating voltage of the EPM3128ATC144-5?
The EPM3128ATC144-5 operates from a 3.3 V core supply and supports 5.0 V, 3.3 V, and 2.5 V multi-volt I/O interfacing. Per the Altera datasheet, this multi-volt I/O allows direct connection to legacy TTL (5 V) and modern low-voltage logic without external level shifters, simplifying mixed-voltage glue-logic designs.
Where can I download the EPM3128ATC144-5 datasheet PDF?
The official Altera MAX 3000A Family Data Sheet is available as a PDF from the Altera archive at https://www.alterasemi.com/datasheet/alterasemi/EPM3128ATC144-5.pdf and from secondary sources such as Alldatasheet (715 KB, 46-page PDF). The datasheet contains full DC characteristics, AC timing, JTAG/ISP instructions, and 144-pin TQFP pin assignments.
Where can I buy the EPM3128ATC144-5 today?
The EPM3128ATC144-5 is available from authorized distributors including DigiKey (part 544-1167-ND), Mouser, Arrow (where it is listed as Obsolete), and secondary-market brokers such as Vyrian, Veswin, and LoveChip. Pricing as of 2026-09-12 ranges from approximately USD 8.75 at qty-1 down to USD 4.85 at qty-1000, subject to remaining stock and supply-chain volatility.
What is the current price of the EPM3128ATC144-5?
As of 2026-09-12, the EPM3128ATC144-5 lists at approximately USD 8.75 in single-piece quantity on the open market, with volume pricing of USD 4.85 at qty-1000. Pricing fluctuates because the part is obsolete - small-lot orders from secondary-market brokers typically carry premium pricing, and large-lot purchases should be quoted through franchised distributors.
What is the lead time for the EPM3128ATC144-5?
Lead time for the EPM3128ATC144-5 is variable because the part is obsolete; franchised distributors such as DigiKey list stock-only availability, while secondary-market brokers typically ship from US or Asian warehouse stock within 1 to 4 weeks. For production volumes, expect to negotiate via formal quote and verify parts authenticity through factory-packaging inspection.
What is the best drop-in replacement for the EPM3128ATC144-5?
The best drop-in replacement for the EPM3128ATC144-5 is the EPM3128ATC144-5N, which is the lead-free version of the same die in the same 144-pin TQFP package, or the slower EPM3128ATC144-10 / -10N family members (also in TQFP-144) when timing margins allow. For modern designs, engineers should evaluate the MAX II or MAX V families (EPM240, EPM570) as next-generation, lower-power non-volatile CPLD alternatives.
What are the key specifications of the EPM3128ATC144-5 that engineers should know?
Key specifications of the EPM3128ATC144-5 are: 128 macrocells, 8 LABs, 96 user I/Os, 2,500 system gates, 7.5 ns tPD, 192.3 MHz maximum internal frequency, 3.3 V core, 5.0/3.3/2.5 V multi-volt I/O, 144-pin TQFP package, 0C to 70C commercial temperature range, EEPROM non-volatile configuration, and IEEE 1532 ISP. These figures come from the Altera MAX 3000A Family Data Sheet.
What is the difference between EPM3128ATC144-5 and EPM3128ATC144-10N?
Both the EPM3128ATC144-5 and EPM3128ATC144-10N are pin-to-pin compatible in the 144-pin TQFP package with 128 macrocells, but the -5 has a 7.5 ns tPD (faster, -5 speed grade) while the -10N has a 10 ns tPD (-10 speed grade, lead-free). The -10N is typically cheaper and more available; the -5 is faster and more suitable for tight-timing bus-interface designs.
Is the EPM3128ATC144-5 RoHS compliant?
The EPM3128ATC144-5 is NOT RoHS compliant per the Arrow Electronics distributor listing, which explicitly states 'EU RoHS Not Compliant.' Engineers designing for EU markets should select the EPM3128ATC144-5N (lead-free, N-suffix) variant or migrate to a MAX II/MAX V family CPLD that is fully RoHS and REACH compliant for current production.

工程參考資料,適用於 EPM3128ATC144-5 — 比較、設計指引及合規資訊。

選型指南

Choose the EPM3128ATC144-5 when you need a deterministic, non-volatile 128-macrocell CPLD in a 144-pin TQFP with 7.5 ns tPD for legacy industrial designs where lead-free compliance is not required. Choose the EPM3128ATC144-5N if RoHS compliance is mandatory for EU markets. Choose the EPM3128ATC144-10 / -10N for cost-down where the 25% slower speed grade is acceptable. For new designs, evaluate the MAX II (EPM240, EPM570) or MAX V family for lower power and active production status. Avoid mixing MAX 3000A density points on the same PCB footprint because pinout changes between EPM3128, EPM3256, and EPM3512 in the same 144-pin TQFP package.

與替代品比較

參數 本產品 EPM3128ATC144-5N EPM3128ATC144-10 EPM3128ATC144-10N EPM3128ATC100-5
Brand Altera Altera Altera Altera Altera
Package TQFP-144 TQFP-144 - same TQFP-144 - same TQFP-144 - same TQFP-100 - smaller
Macrocells 128 128 128 128 128
Speed Grade / tPD -5 (7.5 ns) -5 (7.5 ns) -10 (10 ns) -10 (10 ns) -5 (7.5 ns)
Lead-Free / RoHS No (non-RoHS) Yes (RoHS) No (non-RoHS) Yes (RoHS) No (non-RoHS)
Lifecycle Status Obsolete Obsolete Obsolete Obsolete Obsolete

主要差異化特點

  • Same-die, lead-free RoHS variant for EU and global production (對比EPM3128ATC144-5 (this part, non-RoHS))
  • Slower speed grade allows cost savings in non-timing-critical designs (對比EPM3128ATC144-10)
  • Non-volatile EEPROM configuration boots in microseconds vs milliseconds for SRAM FPGAs (對比Cyclone-series SRAM FPGAs)

設計說明

The EPM3128ATC144-5 requires both a 3.3 V VCC (core) rail and a separate VCCIO (I/O) rail for multi-volt I/O operation. Decouple each VCC and VCCIO pin with a 0.1 uF ceramic capacitor placed as close to the package as possible, and add a 10 uF bulk tantalum or ceramic capacitor near the device to handle ISP-induced transients. Mis-wiring VCCIO to 5 V while VCC is at 3.3 V is a common failure mode - verify bank voltages against the MAX 3000A datasheet before power-on.

Route JTAG signals (TCK, TMS, TDI, TDO) with controlled impedance and keep them away from high-speed clocks and switching I/O to avoid ISP programming failures. Place the JTAG header or connector at the edge of the PCB for production-line programming access. For 144-pin TQFP, use 0.25 mm trace width with 0.5 mm pitch escape routing to break out the inner I/O pins, and provide at least 4 ground pads on the inner ring for return-current continuity.

Do not assume that any 144-pin TQFP from the MAX 3000A family has the same pinout; the EPM3128ATC144-X, EPM3256ATC144-X, and EPM3512ATC144-X differ in pin assignments because internal LAB organization changes between density points. Also, the EPM3128ATC144-5 is not RoHS compliant per the Arrow distributor listing - do not place it on RoHS-only PCBs. Use the lead-free EPM3128ATC144-5N for EU-market products, and verify pinout against the specific device datasheet before laying out the PCB footprint.

For designs using all 96 user I/Os at 5 V TTL levels simultaneously switching, add series resistors (22-33 ohm) near the CPLD outputs to dampen transmission-line reflections on cables or long PCB traces. The MAX 3000A output drive strength is approximately 8-12 mA per pin - adequate for TTL but marginal for long cables. Use a ground-reference trace alongside each clock signal and keep clock traces under 50 mm to avoid skew.

合規資訊

RoHS
Non Compliant
REACH
Unknown
AEC-Q100
Not Applicable
無鉛
No
無鹵
Unknown
衝突礦產
Unknown

RoHS non-compliant per Arrow Electronics distributor listing. Use EPM3128ATC144-5N for RoHS-compliant builds. AEC-Q100 not applicable - this part is not automotive-qualified. Reach, halogen-free, and conflict-minerals status not explicitly stated in verified data.

資料驗證日期: 2026-09-12 — 資料由 XAIPART 元件工程團隊驗證及整理

相關搜尋

EPM3128ATC144-5 EPM3128ATC144-5 datasheet PDF Altera MAX 3000A 128 macrocell CPLD 144-pin TQFP CPLD 7.5 ns EPM3128ATC144-5 drop-in replacement EPM3128ATC144-5 vs EPM3128ATC144-10 EPM3128ATC144-5N RoHS lead-free MAX 3000A in-system programmable CPLD obsolete Altera CPLD replacement MAX II EPM3128ATC144-5 pinout TQFP-144 what is the propagation delay of EPM3128ATC144-5 EPM3128ATC144-5 buy price stock MAX 3000A multi-volt I/O 5V 3.3V 2.5V

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