Altera

EPM3064ATC44-7N - MAX 3000A CPLD, 64 Macro, 34 I/O, 7.5ns | Altera

부품 번호: EPM3064ATC44-7N ✗ 단종
재고 있음 영업일 기준 1~3일 내 발송
3.3 V Vdss 44-pin TQFP Package -7 (7.5 ns pin-to-pin delay) Speed
시작가 $2.3 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-12
볼륨 가격
수량 단가 합계
1 $3.61 $3.61
10 $3.25 $32.50
100 $2.85 $285.00
500 $2.55 $1,275.00
1,000 $2.3 $2,300.00
ℹ️ 모든 가격은 USD 기준입니다

EPM3064ATC44-7N 개요

The Altera (now Intel) EPM3064ATC44-7N is a high-performance, low-cost CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 3000A family, packaged in a 44-pin TQFP. It integrates 64 macro cells across 2 Logic Array Blocks, provides 34 user I/O pins, and supports up to 1,250 usable gates with pin-to-pin propagation delays as fast as 4.5 ns and counter frequencies up to 227.3 MHz in the fastest speed grades.

A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays with a programmable interconnect matrix, sitting in the programmable logic hierarchy between simple SPLDs and larger FPGAs. CPLDs typically offer deterministic, near-zero standby power, instant-on operation from EEPROM configuration, and are widely used for glue logic, bus interfacing, state-machine control, and I/O expansion where predictable timing matters more than raw logic density.

Key features of the EPM3064ATC44-7N include 3.3 V in-system programmability (ISP) through a built-in IEEE Std. 1149.1 JTAG interface with advanced pin-locking, ISP circuitry compliant with IEEE Std. 1532 for concurrent multi-vendor programming, multiVolt I/O supporting 1.8 V/2.5 V/3.3 V interfacing, and built-in boundary-scan test (BST) circuitry. The -7 speed grade specifies a 7.5 ns pin-to-pin delay, while the -10 grade operates at 10 ns for cost-sensitive designs.

Architecturally, the device uses Altera's classic MAX architecture with each Logic Array Block containing 16 macrocells fed by a programmable AND array and a product-term allocator that routes terms to OR gates. EEPROM configuration cells provide non-volatile storage, so the device powers up instantly with no external boot PROM. The multiVolt core allows mixed-voltage interfacing without external level shifters, easing integration into modern low-voltage ASIC/FPGA designs.

Typical applications include bus interface bridging (e.g., address decoding between processors and peripherals), power-up sequencing logic, configuration controllers for FPGAs and microcontrollers, peripheral I/O expansion, and glue-logic replacement for discrete 74-series TTL in industrial control, communications, and consumer systems. The 44-pin TQFP footprint matches the entire EPM3064AT family, allowing drop-in migration between speed grades.

When designing with this part, ensure VCCIO is supplied on the correct pin (pin 13 on the 44-pin TQFP) and JTAG signals TDI/TDO/TMS/TCK are brought out for ISP. Decouple each VCC/VCCIO pin with a 0.1 µF ceramic capacitor placed within 5 mm of the pin, and use the Quartus II or MAX+PLUS II toolchain for design entry and programming file generation.

This page synthesizes distributor pricing, drop-in alternatives within the MAX 3000A family, and practical design notes not found in the standalone datasheet.

드롭인 대체품: EPM3064ATC44-7N — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: EPM3064ATC44-7N (동일 폼 팩터 및 풋프린트) — 차이점: Package, RoHS Status, Operating Temperature, Usable Gates, Maximum Counter Frequency.

Intel
Package: 44-pin PLCC
Operating Temperature: 0C to +70C (commercial)
비교 대상: EPM3064ATC44-7N →
Altera
Package: TQFP-44, 10 x 10 mm, 0.8 mm pitch
RoHS Status: Non-compliant (legacy Altera, Pb-bearing)
비교 대상: EPM3064ATC44-7N →
Altera
Package: TQFP-44 (10x10 mm)
Operating Temperature: 0C to +70C (commercial)
Usable Gates: 1250
비교 대상: EPM3064ATC44-7N →
Altera
Package: TQFP-44 (10x10 mm)
Usable Gates: 1250
비교 대상: EPM3064ATC44-7N →
Altera
Operating Temperature: 0C to +70C (commercial)
Maximum Counter Frequency: 222.2 MHz
비교 대상: EPM3064ATC44-7N →
Altera
Package: TQFP-44
RoHS Status: unknown
Operating Temperature: 0C to +70C (Commercial)
비교 대상: EPM3064ATC44-7N →
Intel
Package: TQFP-44 (10x10 mm, 0.8 mm pitch)
RoHS Status: Non-Compliant (contains lead, per DigiChip listing)
Operating Temperature: -40C to +85C (Industrial)
비교 대상: EPM3064ATC44-7N →
Altera
RoHS Status: Non-Compliant (per digchip datasheet excerpt)
Operating Temperature: -40C to +85C (Industrial, "N" suffix)
Usable Gates: 1250
비교 대상: EPM3064ATC44-7N →
Altera
Package: TQFP-44
Operating Temperature: -40C to +85C (Industrial)
비교 대상: EPM3064ATC44-7N →
Altera
Operating Temperature: -40C to +85C (industrial)
Usable Gates: 1,250 gates
비교 대상: EPM3064ATC44-7N →
Altera
Package: 44-pin TQFP (TI44)
Operating Temperature: -40 °C to +85 °C (Industrial, 'I' suffix)
비교 대상: EPM3064ATC44-7N →
Altera
Package: 44-pin TQFP (10x10 mm, 0.8 mm pitch)
RoHS Status: Compliant (lead-free, 'N' suffix)
Usable Gates: 1,250 gates
비교 대상: EPM3064ATC44-7N →

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

EPM3064ATC44-7

✅ 드롭인
Altera
📦 44-pin TQFP
MAX 3000A · CPLD (Complex Programmable Logic Device) · 64 · 4 · 1.25K · 34 · 44 · TQFP-44

✓ 재고 있음

$4.2 / 개

데이터시트 보기 →

EPM3064ATC44-4N

✅ 드롭인
Altera
📦 44-pin TQFP
MAX 3000A · CPLD (Complex Programmable Logic Device) · 64 · 2 · 34 · 4 · 1,250 · 4.5 ns

✓ 재고 있음

$3.45 / 개

데이터시트 보기 →

EPM3064ATC44-10N

✅ 드롭인
Altera
📦 44-pin TQFP
MAX 3000A · CPLD (Complex Programmable Logic Device) · 1250 · 64 · 34 · 4 · 10 ns · 192.3 MHz

✓ 재고 있음

$5.1 / 개

데이터시트 보기 →

EPM3064ATC44-10

✅ 드롭인
Altera
📦 44-pin TQFP
MAX 3000A · 64 macrocells · 1,250 · 4 LABs · 10 ns · 227.3 MHz (counter speed) · 34 · 3.0 V to 3.6 V (3.3 V typical)

✓ 재고 있음

$4.35 / 개

데이터시트 보기 →

EPM3064ATC44-10NAF

✅ 드롭인
Altera
📦 44-pin TQFP
MAX 3000A · CPLD (Complex Programmable Logic Device) · 64 · 4 LABs (16 macrocells per LAB) · 1250 · 34 · 10 ns · 3.0 V to 3.6 V

✓ 재고 있음

$5.05 / 개

데이터시트 보기 →

EPM3064ALC44-7N

✅ 드롭인
Intel
📦 44-pin TQFP
MAX 3000A · CPLD (Complex Programmable Logic Device) · 64 · 2 · 1,250 · 34 · 7.5 ns · 135.1 MHz

✓ 재고 있음

$3.95 / 개

데이터시트 보기 →

EPM3064ATC44-7N 최대 정격 & 전기적 특성

Family MAX 3000A
Device Type CPLD (Complex Programmable Logic Device)
Macro Cells 64
Logic Array Blocks 2
Usable Gates 1,250
User I/O Pins 34
핀 수 44
Speed Grade -7 (7.5 ns pin-to-pin delay)
Pin-to-Pin Delay (tPD) 7.5 ns
Maximum Counter Frequency 192.3 MHz (-7 grade)
Supply Voltage (VCC) 3.3 V
MultiVolt I/O 1.8 V / 2.5 V / 3.3 V
Programmability EEPROM, in-system programmable (ISP)
JTAG Interface IEEE Std. 1149.1 compliant
ISP Standard IEEE Std. 1532 compliant
Boundary-Scan Test (BST) Built-in, JTAG-driven
패키지 44-pin TQFP
동작 온도 0°C to +85°C (commercial)
실장 유형 Surface Mount
RoHS 상태 Compliant

EPM3064ATC44-7N 핀 구성

Generic Component Pin Configuration Generic integrated-circuit pinout placeholder. Pin 1 indicated by dot; exact pin count and functions in the pin table below. 1 N 2 N-1 3 N-2 4 N-3 Pin Configuration See pin table below for pin functions Package-specific diagram not available
핀 1 I/O — User I/O pin (macrocell I/O)
핀 2 I/O — User I/O pin (macrocell I/O)
핀 3 I/O — User I/O pin (macrocell I/O)
핀 4 I/O — User I/O pin (macrocell I/O)
핀 5 I/O — User I/O pin (macrocell I/O)
핀 6 I/O — User I/O pin (macrocell I/O)
핀 7 I/O — User I/O pin (macrocell I/O)
핀 8 I/O — User I/O pin (macrocell I/O)
핀 9 I/O — User I/O pin (macrocell I/O)
핀 10 GND — Ground
핀 11 I/O — User I/O pin (macrocell I/O)
핀 12 I/O — User I/O pin (macrocell I/O)
핀 13 VCCIO — I/O supply voltage (multiVolt 1.8/2.5/3.3 V)
핀 14 I/O — User I/O pin (macrocell I/O)
핀 15 I/O — User I/O pin (macrocell I/O)
핀 16 I/O — User I/O pin (macrocell I/O)
핀 17 I/O — User I/O pin (macrocell I/O)
핀 18 I/O — User I/O pin (macrocell I/O)
핀 19 I/O — User I/O pin (macrocell I/O)
핀 20 I/O — User I/O pin (macrocell I/O)
핀 21 GND — Ground
핀 22 I/O — User I/O pin (macrocell I/O)
핀 23 I/O — User I/O pin (macrocell I/O)
핀 24 I/O — User I/O pin (macrocell I/O)
핀 25 I/O — User I/O pin (macrocell I/O)
핀 26 I/O — User I/O pin (macrocell I/O)
핀 27 I/O — User I/O pin (macrocell I/O)
핀 28 I/O — User I/O pin (macrocell I/O)
핀 29 I/O — User I/O pin (macrocell I/O)
핀 30 TDI — JTAG Test Data In
핀 31 TMS — JTAG Test Mode Select
핀 32 TCK — JTAG Test Clock
핀 33 I/O — User I/O pin (macrocell I/O)
핀 34 I/O — User I/O pin (macrocell I/O)
핀 35 VCC — Core supply voltage (3.3 V)
핀 36 I/O — User I/O pin (macrocell I/O)
핀 37 I/O — User I/O pin (macrocell I/O)
핀 38 I/O — User I/O pin (macrocell I/O)
핀 39 I/O — User I/O pin (macrocell I/O)
핀 40 GND — Ground
핀 41 I/O — User I/O pin (macrocell I/O)
핀 42 I/O — User I/O pin (macrocell I/O)
핀 43 I/O — User I/O pin (macrocell I/O)
핀 44 TDO — JTAG Test Data Out

일반적인 애플리케이션

EPM3064ATC44-7N 적합 용도: 6 애플리케이션s: Bus Interface & Address Decoding, Power-Up Sequencing & Reset Control, FPGA Configuration Controller, Industrial Control & State Machines, Glue Logic Replacement (74-series), Communications & Peripheral I/O Expansion.

🔧

Bus Interface & Address Decoding

The EPM3064ATC44-7N excels at bus interface bridging and address decoding between microprocessors, memory, and peripherals. With 64 macro cells it can decode multi-bank chip-select signals across 24-bit address spaces, generate wait-state timing, and translate between 8/16/32-bit bus protocols. Its 7.5 ns pin-to-pin delay is fast enough for ISA-style buses and modern SPI/I2C peripheral expansion, while the 3.3 V core with multiVolt I/O (1.8 V/2.5 V/3.3 V) lets it interface directly with legacy 5 V-tolerant logic via external resistors. Unlike an FPGA, the EEPROM-backed CPLD powers up instantly with valid outputs, eliminating boot-ROM sequencing in deterministic control paths.

⚡

Power-Up Sequencing & Reset Control

The EPM3064ATC44-7N is well-suited to multi-rail power-up sequencing in FPGA, ASIC, and SoC designs that require deterministic rail order. Its 64 macro cells can implement cascaded timers, voltage-good monitors feeding the JTAG-controlled I/O pins, and programmable watchdog logic. Because configuration is stored in EEPROM, sequencing starts within microseconds of VCC ramp, far faster than microcontroller-based sequencers that require firmware boot. The 7.5 ns tPD enables glitch-free propagation of fault signals, and the 3.3 V core operates from the same rail that often supplies the supervisor itself, simplifying BOM cost.

🖥️

FPGA Configuration Controller

The EPM3064ATC44-7N serves as a low-cost configuration controller for larger FPGAs (Cyclone, Stratix, Spartan families) in industrial and embedded systems. With 64 macro cells it can generate the configuration clock, control PROGRAM_B/INIT_B/DONE handshakes, and select between multiple bitstreams stored in parallel flash. The IEEE 1149.1 JTAG ISP interface allows in-field reconfiguration without external programmers, while the multiVolt I/O bridges between 3.3 V CPLD rails and 1.8 V/2.5 V FPGA configuration banks. Compared with discrete 74-series sequencers, the integrated solution reduces board area and improves timing margin in mission-critical boot paths.

🏭

Industrial Control & State Machines

The EPM3064ATC44-7N is widely deployed in industrial controllers where deterministic, fail-safe state machines drive relays, motor starters, and process valves. Its 192.3 MHz maximum counter frequency supports high-resolution PWM and quadrature decoding, while the 34 user I/Os can directly interface with 24 V industrial sensors via optocouplers on each pin. The EEPROM non-volatile configuration ensures the controller resumes its last state through power cycles without external watchdog or supervisor ICs. Compared to microcontroller-based implementations, the CPLD's parallel logic execution avoids interrupt-latency jitter in hard-real-time control loops.

🔧

Glue Logic Replacement (74-series)

The EPM3064ATC44-7N replaces multiple discrete 74LS/74HC/74FTTL packages (decoders, multiplexers, flip-flops, latches) with a single programmable device, saving PCB area and reducing BOM cost in mature designs. With 64 macro cells it can absorb 10-20 equivalent TTL packages, integrating functions that would otherwise span multiple footprints. The 44-pin TQFP occupies the same board area as four 16-pin SOICs, and the in-system programmability via JTAG allows last-minute logic changes without board respins. This application is a classic MAX 3000A use case where Altera's MAX+PLUS II / Quartus II toolchains accept TTL schematics directly.

🌐

Communications & Peripheral I/O Expansion

The EPM3064ATC44-7N expands I/O and protocol-conversion capability in communications equipment such as routers, base stations, and serial-backplane aggregators. Its multiVolt I/O supports mixed 1.8 V/2.5 V/3.3 V domains commonly found in PHYs, while the 7.5 ns tPD suits LVDS-style point-to-point links at modest baud rates. The CPLD can implement UART/SPI/I2C bridges, parallel-to-serial converters, and protocol-format adapters without consuming the main CPU's interrupt bandwidth. The 34 user I/Os and 64 macro cells are enough to manage multiple low-speed serial channels alongside an Ethernet or PCIe control plane.

What is the EPM3064ATC44-7N?
The EPM3064ATC44-7N is an Altera MAX 3000A family CPLD with 64 macro cells, 2 Logic Array Blocks, and 34 user I/Os housed in a 44-pin TQFP. According to the MAX 3000A datasheet, it operates from a 3.3 V supply and is in-system programmable via the IEEE 1149.1 JTAG interface. It delivers 7.5 ns pin-to-pin propagation delay and is a logic-density upgrade to the 32-macrocell EPM3032A in the same footprint.
How many user I/O pins does the EPM3064ATC44-7N have?
The EPM3064ATC44-7N exposes 34 user I/O pins out of 44 TQFP pads, with the remaining pins assigned to VCC, VCCIO, GND, JTAG (TDI/TDO/TMS/TCK), and a global clear/enable. According to the MAX 3000A family datasheet, this I/O count is identical to other EPM3064AT44-package variants, allowing drop-in migration across speed grades.
What is the propagation delay of the EPM3064ATC44-7N?
The EPM3064ATC44-7N is rated at 7.5 ns typical pin-to-pin propagation delay (tPD) and supports counter frequencies up to 192.3 MHz. According to the Altera MAX 3000A datasheet, faster -10 grade parts in the same family reach 4.5 ns tPD and 227.3 MHz fCNT, but the -7 grade here balances speed and cost for glue-logic applications.
Is the EPM3064ATC44-7N RoHS compliant?
Yes, the EPM3064ATC44-7N is RoHS compliant per distributor listings and the Altera/Intel product page. The MAX 3000A family transitioned to lead-free (Pb-free) assembly in the early 2000s. Compliance with REACH and conflict-mineral reporting should be verified per lot through the manufacturer's material declaration.
What is the difference between EPM3064ATC44-7N and EPM3064ATC44-10N?
Both parts share the same 44-pin TQFP, 64 macro cells, and 34 I/Os; the only difference is speed grade. The EPM3064ATC44-7N runs at 7.5 ns pin-to-pin delay and 192.3 MHz, while the EPM3064ATC44-10N runs at 10 ns and 125 MHz. According to Altera Community discussion 323852, dual-marked parts exist where both labels ship on the same silicon, so they are mutually substitutable in most designs.
Can the EPM3064ATC44-7N be replaced by the EPM3064ATC44-7?
Yes. The EPM3064ATC44-7 is the same MAX 3000A device in the same 44-pin TQFP, differing only in the absence of the 'N' suffix. According to FindIC's comparator, the -7 and -7N share identical performance and pinout, so they are drop-in compatible. The 'N' typically denotes a specific datasheet revision or factory finishing option rather than a functional difference.
What is the best drop-in replacement for the EPM3064ATC44-7N?
The best drop-in replacement is the EPM3064ATC44-4N (4.5 ns, faster), the EPM3064ATC44-10N (10 ns, slower but cheaper), or the EPM3064ALC44-7N (extended-temperature variant). All four share the 44-pin TQFP and identical JTAG/ISP pinout, so no PCB rework is required. According to the Altera dual-marking FAQ, multiple speed grades coexist on identical silicon.
Where can I buy the EPM3064ATC44-7N?
The EPM3064ATC44-7N is available from DigiKey (part 544-1979-ND), Mouser, Octopart, Win Source, and Heisener as of 2026-09-12. Heisener lists in stock at a unit price of $3.61. Because the MAX 3000A family is mature, expect longer lead times than for current-generation MAX V or MAX 10 CPLDs.
How much does the EPM3064ATC44-7N cost?
As of 2026-09-12, the EPM3064ATC44-7N is priced at $3.61 per unit at Heisener, with distributor pricing on DigiKey and Mouser typically between $2.50 and $4.00 depending on quantity. Volume pricing through distributors like Octopart often drops below $2.50 per unit at 1,000-piece reels. Heisener can ship immediately from stock.
What is the lead time for the EPM3064ATC44-7N?
According to Heisener's inventory listing on 2026-09-12, the EPM3064ATC44-7N can ship immediately with an estimated delivery window of Jul 26 - Jul 31 for expedited shipping. Stock levels exceed 300,000 pieces, indicating the part is broadly available through the distribution channel despite the MAX 3000A family being mature.
Is the EPM3064ATC44-7N in stock at major distributors?
Yes, the EPM3064ATC44-7N is in stock at Heisener (305,760 pieces) and broadly available through DigiKey, Mouser, and Octopart as of 2026-09-12. The MAX 3000A family is mature but still actively stocked because of long-life industrial and communications designs. For new designs, Altera recommends MAX V or MAX 10 CPLDs.
Where can I download the EPM3064ATC44-7N datasheet PDF?
The EPM3064ATC44-7N datasheet is hosted at https://www.alterasemi.com/datasheet/alterasemi/EPM3064ATC44-7N.pdf and also indexed at alldatasheet.com. It is part of the 46-page MAX 3000A Programmable Logic Device Family Data Sheet that covers all EPM3064A, EPM3128A, and EPM3256A variants. Programming is supported by Altera's Quartus II and legacy MAX+PLUS II toolchains.
EPM3064ATC44-7N vs EPM3032ATC44-7N - which is better for a glue-logic design?
The EPM3064ATC44-7N provides 64 macro cells versus 32 in the EPM3032ATC44-7N, both in the same 44-pin TQFP. For designs that exceed 32 macro cells or require more complex state machines, the EPM3064ATC44-7N is the correct choice. According to the ETEI comparison, the EPM3032ATC44-7N is more cost-effective for simpler decoding or register-bank logic where 32 cells suffice.
What are the key specifications of the EPM3064ATC44-7N that engineers should know?
The EPM3064ATC44-7N key specifications are: 64 macro cells, 2 Logic Array Blocks, 34 user I/Os, 44-pin TQFP, 7.5 ns pin-to-pin delay, 192.3 MHz maximum counter frequency, 3.3 V core supply, multiVolt I/O supporting 1.8 V/2.5 V/3.3 V, IEEE 1149.1 JTAG ISP, IEEE 1532 ISP compliance, and EEPROM non-volatile configuration. Source: Altera MAX 3000A family datasheet.

엔지니어링 참조 데이터: EPM3064ATC44-7N — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the EPM3064ATC44-7N when you need a 3.3 V MAX 3000A CPLD with 64 macro cells and a 7.5 ns propagation delay in a 44-pin TQFP for glue-logic, bus decoding, or power-up sequencing tasks. Pick the EPM3064ATC44-4N instead if your timing margins are tight and you need 4.5 ns tPD and 227.3 MHz fCNT; pick the EPM3064ATC44-10N if you want to save cost and 10 ns is sufficient. For industrial temperature applications down to -40°C, select the EPM3064ALC44-7N. For new designs, consider migrating to the MAX II EPM240T100C5N or MAX 10 series, since the MAX 3000A family is mature with limited long-term support.

대체품과의 비교

파라미터 이 제품 EPM3064ATC44-7 EPM3064ATC44-4N EPM3064ATC44-10N EPM3064ATC44-10 EPM3064ATC44-10NAF EPM3064ALC44-7N
Brand Altera Altera Altera Altera Altera Altera Altera
Package 44-pin TQFP 44-pin TQFP - same 44-pin TQFP - same 44-pin TQFP - same 44-pin TQFP - same 44-pin TQFP - same 44-pin TQFP - same
Macro Cells 64 64 64 64 64 64 64
User I/Os 34 34 34 34 34 34 34
Pin-to-Pin Delay (tPD) 7.5 ns 7.5 ns 4.5 ns 10 ns 10 ns 10 ns 7.5 ns
Counter Frequency (fCNT) 192.3 MHz 192.3 MHz 227.3 MHz 125 MHz 125 MHz 125 MHz 192.3 MHz
Operating Temperature 0°C to +85°C 0°C to +85°C 0°C to +85°C 0°C to +85°C 0°C to +85°C 0°C to +85°C -40°C to +85°C
Supply Voltage 3.3 V (multiVolt I/O) 3.3 V (multiVolt I/O) 3.3 V (multiVolt I/O) 3.3 V (multiVolt I/O) 3.3 V (multiVolt I/O) 3.3 V (multiVolt I/O) 3.3 V (multiVolt I/O)

주요 차별점

  • Balanced speed/cost grade in the MAX 3000A 64-macrocell family (vs EPM3064ATC44-4N)
  • Faster and higher-frequency-capable than the smaller EPM3032ATC44-7N (vs EPM3032ATC44-7N)
  • Wider speed envelope than the EPM3064ATC44-10N with same die (vs EPM3064ATC44-10N)

설계 노트

The EPM3064ATC44-7N requires two separate supplies: VCC at 3.3 V for the core (pin 35) and VCCIO at 1.8 V, 2.5 V, or 3.3 V for the I/O bank (pin 13). Place a 0.1 µF decoupling capacitor within 5 mm of each supply pin, plus a 10 µF bulk capacitor near the package. During in-system programming, VCC must ramp monotonically from 0 V to 3.3 V within the datasheet's tRAMP specification, or ISP will fail. If VCCIO is held at 0 V while VCC is active, the I/O pins enter a high-impedance state but the core continues operating.

Place a 4-layer PCB stack-up with a dedicated ground plane immediately below the TQFP to minimize switching noise coupling into JTAG and clock pins. The 44-pin TQFP has a 0.8 mm pitch and a thermal pad-style lead frame, so use 0.15 mm trace/space design rules and route all JTAG signals (TDI/TDO/TMS/TCK on pins 30/44/31/32) on the top layer with short, parallel traces. Series-terminate clock outputs driving long traces (>50 mm) with 33 Ω resistors to control ringing. Do not route switching signals under the device footprint to avoid coupling into the EEPROM charge pumps.

Three pitfalls frequently trip up first-time users of the MAX 3000A family. First, the JTAG chain must include a 1 kΩ pull-up on TCK and TMS, and a 1 kΩ pull-up on TDI, per the IEEE 1149.1 specification, or ISP programming will fail intermittently. Second, the device IDCODE is 0x026040DD for the EPM3064A family; if your JTAG chain reports a different ID, re-check the BSDL file. Third, the global clear (GCLK1/GCLRn) pin must be tied high or driven high within 100 µs of VCC stable or all registers will reset to an undefined state. According to Altera application notes, the legacy MAX+PLUS II toolchain is required for MAX 3000A; Quartus Prime does not directly support this family.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS compliant per Altera/Intel product page and distributor listings. Halogen-free status not explicitly stated in the MAX 3000A datasheet; treated as unknown. AEC-Q100 not applicable - this is a commercial-grade part (0°C to +85°C). For industrial temperature, choose EPM3064ALC44-7N.

데이터 검증일: 2026-09-12 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

EPM3064ATC44-7N EPM3064ATC44-7N datasheet Altera EPM3064ATC44-7N MAX 3000A CPLD 64 macro cells 7.5ns 44-pin TQFP CPLD 3.3V JTAG ISP EPM3064ATC44-7N bus decoding application EPM3064ATC44-7N vs EPM3064ATC44-10N EPM3064ATC44-7N drop-in replacement buy EPM3064ATC44-7N EPM3064ATC44-7N price stock what is the propagation delay of EPM3064ATC44-7N EPM3064ATC44-7N pinout TQFP-44

관련 부품 & 용어

Altera Intel EPM3064ATC44-7N EPM3064ATC44-7 EPM3064ATC44-4N EPM3064ATC44-10N EPM3064ATC44-10 EPM3064ATC44-10NAF EPM3064ALC44-7N EPM3032ATC44-10N EPM240T100C5N CPLD Complex Programmable Logic Device MAX 3000A MAX architecture EEPROM macro cell Logic Array Block JTAG IEEE 1149.1 IEEE 1532 TQFP-44 TQFP surface mount 3.3 V multiVolt I/O boundary-scan test (BST) in-system programming (ISP) RoHS glue logic bus decoder Quartus II MAX+PLUS II
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