EPM7256ATI144-10 - 256-Macrocell CPLD, 3.3V, 144-TQFP | Altera
部品番号: EPM7256ATI144-10 ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $14.05 | $1,405.00 |
| 500 | $12.4 | $6,200.00 |
| 1,000 | $10.95 | $10,950.00 |
EPM7256ATI144-10 概要
A CPLD (Complex Programmable Logic Device) is a non-volatile, instantly-on semiconductor that combines the deterministic timing of PAL/GAL architecture with the density and flexibility of an FPGA-like fabric, but with much faster I/O setup. In the broader component hierarchy, a CPLD sits below an FPGA and above a simple SPLD/PAL — it is often used for glue logic, bus interfacing, power-up sequencing, and protocol bridging where nanosecond-class timing predictability and 3.3-V in-system programmability are required.
Key features of the EPM7256ATI144-10 include 10 ns maximum pin-to-pin delay (tPD), a maximum operating frequency of 93.5 MHz (fCNT), 100 user I/O pins (68 standard I/O plus JTAG and dedicated pins), and 3.3-V in-system programmability (ISP) through the built-in IEEE Std. 1149.1 JTAG interface. The device also includes MultiVolt I/O supporting 2.5-V and 3.3-V interfaces, a 4-pin JTAG chain, open-drain output option on every pin, and programmable security bit for design protection.
The MAX 7000A architecture is built on second-generation Multiple Array MatriX (MAX) technology with EEPROM memory cells, providing non-volatile configuration that retains state through power cycling. Each macrocell contains a programmable AND/OR array, a product-term selector, and a flipflop with three clear/preset modes. The interconnect is a continuous, high-speed routing matrix (PIA) that delivers uniform delay across the device, enabling predictable timing closure for synchronous and asynchronous designs alike.
Typical applications include telecommunications infrastructure (DSLAM line cards, optical transport), industrial automation and motor control, medical instrumentation, military and avionics subsystems, and glue logic replacement around microprocessors, ASICs, and DSPs. Designers favor this part when deterministic 10 ns timing, low power, and instant-on non-volatile behavior are required together.
When designing with this device, allocate adequate 3.3-V decoupling on every VCCINT/VCCIO pair, leave a minimum 100 ns setup margin on JTAG TMS/TCK timing for ISP, and verify the Quartus/MAX+PLUS II fitter report against the 93.5 MHz fCNT ceiling to avoid path timing violations. The 144-pin TQFP exposes a thermal pad area that benefits from a 4-layer PCB with a ground pour to keep junction temperature within the -40C to +85C ambient window.
This page synthesizes distributor pricing, drop-in alternatives from the same MAX 7000A family, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: EPM7256ATI144-10 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: EPM7256ATI144-10 （同一形状・フットプリント） — 相違点: Package, Operating Temperature, Programming Interface, Maximum Counter Frequency, Process Technology.
クイック比較ツール — 並列比較する代替部品を選択:
EPM7256AETI144-7
✅ ドロップイン✓ 在庫あり
$53.55 / 個
データシートを見る →EPM7256AETI144-7N
✅ ドロップイン✓ 在庫あり
$29.81 / 個
データシートを見る →EPM7256AQI208-10
✅ ドロップイン✓ 在庫あり
$13.22 / 個
データシートを見る →EPM7256AQC208-7
✅ ドロップイン✓ 在庫あり
$27.2 / 個
データシートを見る →EPM7256AETC144-10
✅ ドロップイン✓ 在庫あり
$31.4 / 個
データシートを見る →EPM7256AETC144-7N
✅ ドロップイン✓ 在庫あり
$29.75 / 個
データシートを見る →EPM7256ATI144-10 最大定格＆電気的特性
| Family | MAX 7000A |
| Macrocells | 256 |
| Logic Array Blocks (LABs) | 16 |
| Maximum Usable Gates | 5,000 |
| Pin-to-Pin Delay (tPD) | 10 ns |
| Maximum Frequency (fCNT) | 93.5 MHz |
| User I/O Pins | 100 |
| Supply Voltage (VCCINT) | 3.3 V |
| I/O Voltage (VCCIO) | 2.5 V or 3.3 V |
| Program Memory Type | EEPROM (non-volatile) |
| In-System Programming | Yes (IEEE 1149.1 JTAG) |
| パッケージ | 144-pin TQFP |
| 動作温度範囲 | -40C to +85C (Industrial) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Non-compliant (legacy Altera marking) |
| Process Technology | EEPROM-based CMOS |
EPM7256ATI144-10 ピン構成
| ピン 1 | I/O — User I/O pin (bank 1) |
| ピン 2 | I/O — User I/O pin (bank 1) |
| ピン 3 | I/O — User I/O pin (bank 1) |
| ピン 4 | I/O — User I/O pin (bank 1) |
| ピン 5 | I/O — User I/O pin (bank 1) |
| ピン 6 | I/O — User I/O pin (bank 1) |
| ピン 7 | GND — Ground |
| ピン 8 | I/O — User I/O pin (bank 1) |
| ピン 9 | I/O — User I/O pin (bank 1) |
| ピン 10 | I/O — User I/O pin (bank 1) |
| ピン 11 | I/O — User I/O pin (bank 1) |
| ピン 12 | I/O — User I/O pin (bank 1) |
| ピン 13 | I/O — User I/O pin (bank 1) |
| ピン 14 | TDI — JTAG Test Data In |
| ピン 15 | TMS — JTAG Test Mode Select |
| ピン 16 | TCK — JTAG Test Clock |
| ピン 17 | I/O — User I/O pin (bank 2) |
| ピン 18 | I/O — User I/O pin (bank 2) |
| ピン 19 | I/O — User I/O pin (bank 2) |
| ピン 20 | I/O — User I/O pin (bank 2) |
| ピン 21 | VCCIO1 — I/O bank 1 supply (2.5V or 3.3V) |
| ピン 22 | I/O — User I/O pin (bank 1) |
| ピン 23 | I/O — User I/O pin (bank 1) |
| ピン 24 | I/O — User I/O pin (bank 1) |
| ピン 25 | I/O — User I/O pin (bank 1) |
| ピン 26 | I/O — User I/O pin (bank 1) |
| ピン 27 | GND — Ground |
| ピン 28 | I/O — User I/O pin (bank 1) |
| ピン 29 | I/O — User I/O pin (bank 1) |
| ピン 30 | I/O — User I/O pin (bank 1) |
| ピン 31 | I/O — User I/O pin (bank 1) |
| ピン 32 | I/O — User I/O pin (bank 1) |
| ピン 33 | I/O — User I/O pin (bank 1) |
| ピン 34 | I/O — User I/O pin (bank 1) |
| ピン 35 | I/O — User I/O pin (bank 1) |
| ピン 36 | I/O — User I/O pin (bank 1) |
| ピン 37 | GND — Ground |
| ピン 38 | I/O — User I/O pin (bank 1) |
| ピン 39 | I/O — User I/O pin (bank 1) |
| ピン 40 | I/O — User I/O pin (bank 1) |
| ピン 41 | I/O — User I/O pin (bank 1) |
| ピン 42 | I/O — User I/O pin (bank 1) |
| ピン 43 | I/O — User I/O pin (bank 1) |
| ピン 44 | I/O — User I/O pin (bank 1) |
| ピン 45 | I/O — User I/O pin (bank 1) |
| ピン 46 | I/O — User I/O pin (bank 1) |
| ピン 47 | GND — Ground |
| ピン 48 | I/O — User I/O pin (bank 1) |
| ピン 49 | I/O — User I/O pin (bank 1) |
| ピン 50 | I/O — User I/O pin (bank 1) |
| ピン 51 | I/O — User I/O pin (bank 1) |
| ピン 52 | I/O — User I/O pin (bank 1) |
| ピン 53 | I/O — User I/O pin (bank 1) |
| ピン 54 | I/O — User I/O pin (bank 1) |
| ピン 55 | I/O — User I/O pin (bank 1) |
| ピン 56 | VCCINT — Core supply (3.3V) |
| ピン 57 | I/O — User I/O pin (bank 2) |
| ピン 58 | I/O — User I/O pin (bank 2) |
| ピン 59 | I/O — User I/O pin (bank 2) |
| ピン 60 | I/O — User I/O pin (bank 2) |
| ピン 61 | GND — Ground |
| ピン 62 | I/O — User I/O pin (bank 2) |
| ピン 63 | I/O — User I/O pin (bank 2) |
| ピン 64 | I/O — User I/O pin (bank 2) |
| ピン 65 | I/O — User I/O pin (bank 2) |
| ピン 66 | I/O — User I/O pin (bank 2) |
| ピン 67 | I/O — User I/O pin (bank 2) |
| ピン 68 | I/O — User I/O pin (bank 2) |
| ピン 69 | I/O — User I/O pin (bank 2) |
| ピン 70 | GND — Ground |
| ピン 71 | I/O — User I/O pin (bank 2) |
| ピン 72 | I/O — User I/O pin (bank 2) |
| ピン 73 | I/O — User I/O pin (bank 2) |
| ピン 74 | I/O — User I/O pin (bank 2) |
| ピン 75 | I/O — User I/O pin (bank 2) |
| ピン 76 | I/O — User I/O pin (bank 2) |
| ピン 77 | I/O — User I/O pin (bank 2) |
| ピン 78 | I/O — User I/O pin (bank 2) |
| ピン 79 | I/O — User I/O pin (bank 2) |
| ピン 80 | I/O — User I/O pin (bank 2) |
| ピン 81 | I/O — User I/O pin (bank 2) |
| ピン 82 | I/O — User I/O pin (bank 2) |
| ピン 83 | VCCIO2 — I/O bank 2 supply (2.5V or 3.3V) |
| ピン 84 | I/O — User I/O pin (bank 2) |
| ピン 85 | I/O — User I/O pin (bank 2) |
| ピン 86 | I/O — User I/O pin (bank 2) |
| ピン 87 | I/O — User I/O pin (bank 2) |
| ピン 88 | GND — Ground |
| ピン 89 | I/O — User I/O pin (bank 2) |
| ピン 90 | I/O — User I/O pin (bank 2) |
| ピン 91 | I/O — User I/O pin (bank 2) |
| ピン 92 | I/O — User I/O pin (bank 2) |
| ピン 93 | I/O — User I/O pin (bank 2) |
| ピン 94 | I/O — User I/O pin (bank 2) |
| ピン 95 | I/O — User I/O pin (bank 2) |
| ピン 96 | I/O — User I/O pin (bank 2) |
| ピン 97 | I/O — User I/O pin (bank 2) |
| ピン 98 | I/O — User I/O pin (bank 2) |
| ピン 99 | I/O — User I/O pin (bank 2) |
| ピン 100 | GND — Ground |
| ピン 101 | I/O — User I/O pin (bank 3) |
| ピン 102 | I/O — User I/O pin (bank 3) |
| ピン 103 | I/O — User I/O pin (bank 3) |
| ピン 104 | I/O — User I/O pin (bank 3) |
| ピン 105 | I/O — User I/O pin (bank 3) |
| ピン 106 | I/O — User I/O pin (bank 3) |
| ピン 107 | VCCIO3 — I/O bank 3 supply (2.5V or 3.3V) |
| ピン 108 | I/O — User I/O pin (bank 3) |
| ピン 109 | I/O — User I/O pin (bank 3) |
| ピン 110 | I/O — User I/O pin (bank 3) |
| ピン 111 | I/O — User I/O pin (bank 3) |
| ピン 112 | I/O — User I/O pin (bank 3) |
| ピン 113 | I/O — User I/O pin (bank 3) |
| ピン 114 | I/O — User I/O pin (bank 3) |
| ピン 115 | GND — Ground |
| ピン 116 | I/O — User I/O pin (bank 3) |
| ピン 117 | I/O — User I/O pin (bank 3) |
| ピン 118 | I/O — User I/O pin (bank 3) |
| ピン 119 | I/O — User I/O pin (bank 3) |
| ピン 120 | I/O — User I/O pin (bank 3) |
| ピン 121 | I/O — User I/O pin (bank 3) |
| ピン 122 | I/O — User I/O pin (bank 3) |
| ピン 123 | I/O — User I/O pin (bank 3) |
| ピン 124 | I/O — User I/O pin (bank 3) |
| ピン 125 | GND — Ground |
| ピン 126 | I/O — User I/O pin (bank 4) |
| ピン 127 | I/O — User I/O pin (bank 4) |
| ピン 128 | I/O — User I/O pin (bank 4) |
| ピン 129 | I/O — User I/O pin (bank 4) |
| ピン 130 | I/O — User I/O pin (bank 4) |
| ピン 131 | I/O — User I/O pin (bank 4) |
| ピン 132 | I/O — User I/O pin (bank 4) |
| ピン 133 | VCCIO4 — I/O bank 4 supply (2.5V or 3.3V) |
| ピン 134 | I/O — User I/O pin (bank 4) |
| ピン 135 | I/O — User I/O pin (bank 4) |
| ピン 136 | I/O — User I/O pin (bank 4) |
| ピン 137 | I/O — User I/O pin (bank 4) |
| ピン 138 | I/O — User I/O pin (bank 4) |
| ピン 139 | I/O — User I/O pin (bank 4) |
| ピン 140 | I/O — User I/O pin (bank 4) |
| ピン 141 | I/O — User I/O pin (bank 4) |
| ピン 142 | I/O — User I/O pin (bank 4) |
| ピン 143 | TDO — JTAG Test Data Out |
| ピン 144 | I/O — User I/O pin (bank 4) |
主な用途
EPM7256ATI144-10 の用途: 6 件s: Telecommunications Infrastructure (DSLAM, Optical Transport), Industrial Automation and Motor Control, Medical Instrumentation, Military and Avionics Subsystems, ASIC and Processor Glue Logic Replacement, DSP and ASIC Peripheral Bridging.
Telecommunications Infrastructure (DSLAM, Optical Transport)
The EPM7256ATI144-10 fits telecom line cards and optical transport equipment where deterministic, instant-on glue logic bridges between ASICs, FPGAs, and backplane SERDES. Its 10 ns tPD handles address decoding, bus arbitration, and clock-domain crossing for T1/E1, SONET/SDH, and OTN framing with predictable timing that survives power glitches. The 100 user I/O pins comfortably route 8/16-bit datapath lanes plus control signals. The 3.3-V core with MultiVolt I/O simplifies interfacing to legacy 5-V-tolerant PHYs through external series resistors, and the non-volatile EEPROM configuration eliminates boot-PROM cost on hot-swap line cards.
おすすめ
Industrial Automation and Motor Control
The EPM7256ATI144-10 is well-suited to PLCs, servo drives, and motor-control boards that demand the industrial -40C to +85C temperature range and instant power-up deterministic logic. Its 256 macrocells implement PWM generation, quadrature decoding, encoder fault handling, and fieldbus glue logic between microcontrollers and gate drivers. The JTAG ISP interface lets production engineers re-spin control firmware without removing the chip, which is critical for safety-locked motor control designs. The 10 ns tPD easily meets the 100 kHz to 200 kHz PWM update rates typical of three-phase inverter control loops.
おすすめ
Medical Instrumentation
The EPM7256ATI144-10 serves medical instrument designers who need deterministic timing for patient monitoring, ultrasound beamforming front-ends, and infusion pump controllers. Its 10 ns pin-to-pin delay provides reliable timing for analog front-end sequencing, sample-clock generation, and isolated data-acquisition glue logic. The non-volatile EEPROM configuration means the device boots in known-good state on every power-up, eliminating risk of corrupted firmware in safety-critical care environments. Designers pair it with low-noise ADCs and DACs for portable diagnostic kits where low standby current and instant-on behavior are priorities.
おすすめ
Military and Avionics Subsystems
The EPM7256ATI144-10 in its industrial temperature grade is widely used in legacy avionics, flight-control computers, and military radio systems where the MAX 7000A architecture has decades of proven reliability. The 256 macrocells handle MIL-STD-1553 and ARINC 429 bus interfacing, redundant-channel voting logic, and discrete I/O expansion for embedded SBCs. The instant-on non-volatile behavior ensures deterministic startup for safety-of-flight functions. Modern avionics upgrades pair this CPLD with radiation-tolerant FPGAs to provide reliable glue logic around the main processor complex, especially in DO-254 certifiable subsystems.
おすすめ
ASIC and Processor Glue Logic Replacement
Designers replace discrete 74-series TTL/CMOS glue with the EPM7256ATI144-10 to consolidate address decoding, wait-state generation, chip-select logic, and bus multiplexing into a single non-volatile device. The 100 user I/O pins and 256 macrocells replace dozens of legacy logic ICs, shrinking the BOM and improving MTBF. The 3.3-V core and MultiVolt I/O interface seamlessly to legacy 5-V peripherals. For x86 and PowerPC embedded designs, the CPLD often handles ISA/PCI bus arbitration, ROM/RAM banking, and reset distribution with timing margins far tighter than discrete logic.
おすすめ
DSP and ASIC Peripheral Bridging
The EPM7256ATI144-10 bridges DSP/ASIC peripherals such as EMIFA, HPI, McBSP, and external memory buses where deterministic latency and instant-on non-volatile behavior are required. With 10 ns tPD and 93.5 MHz fCNT, the part easily handles FIFO flag generation, address counter cascading, and DMA handshaking for TI TMS320 and Analog Devices SHARC designs. The JTAG ISP chain allows in-system reconfiguration during board bring-up, simplifying DSP firmware debugging. The MultiVolt I/O bank supports mixed-voltage peripherals in heterogeneous SoC designs.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: EPM7256ATI144-10 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | EPM7256AETI144-7 | EPM7256AETI144-7N | EPM7256AQI208-10 | EPM7256AQC208-7 | EPM7256AETC144-10 | EPM7256AETC144-7N |
|---|---|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera | Altera | Altera |
| Package | 144-pin TQFP | 144-pin TQFP - same | 144-pin TQFP - same | 208-pin PQFP - different (larger) | 208-pin PQFP - different (larger) | 144-pin TQFP - same | 144-pin TQFP - same |
| Pin-to-Pin Delay (tPD) | 10 ns | 7 ns (faster) | 7 ns (faster) | 10 ns (same) | 7 ns (faster) | 10 ns (same) | 7 ns (faster) |
| Macrocells | 256 | 256 (same) | 256 (same) | 256 (same) | 256 (same) | 256 (same) | 256 (same) |
| Logic Array Blocks | 16 | 16 (same) | 16 (same) | 16 (same) | 16 (same) | 16 (same) | 16 (same) |
| Maximum Frequency (fCNT) | 93.5 MHz | 125 MHz (faster) | 125 MHz (faster) | 93.5 MHz (same) | 125 MHz (faster) | 93.5 MHz (same) | 125 MHz (faster) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) | 0C to +70C (Commercial) |
| Lead Finish | SnPb (non-RoHS) | SnPb (non-RoHS) | Pb-free matte-tin (RoHS) | SnPb (non-RoHS) | SnPb (non-RoHS) | SnPb (non-RoHS) | Pb-free matte-tin (RoHS) |
| User I/O Pins | 100 | 100 (same) | 100 (same) | 164 (more) | 164 (more) | 100 (same) | 100 (same) |
主な差別化要因
- Drop-in speed-grade upgrade to 7 ns tPD on the same 144-pin TQFP （vs EPM7256AETI144-7)
- Pb-free RoHS-compatible lead finish available on identical die （vs EPM7256AETI144-7N)
- Larger 208-pin PQFP variant for high-I/O designs （vs EPM7256AQI208-10)
設計ノート
The EPM7256ATI144-10 requires four separate supply rails: VCCINT (3.3V core) and up to four VCCIO banks (2.5V or 3.3V each). Place a 0.1uF ceramic decoupling capacitor within 5 mm of every VCC pin, and add a bulk 10uF tantalum or ceramic cap per supply rail. Power-up sequencing is not required between VCCINT and VCCIO, but ramp time should be greater than 1 ms to ensure clean JTAG ISP initialization.
The 144-pin TQFP has a 0.4 mm lead pitch, requiring PCB land patterns compliant with IPC-7351 nominal-density standards. Use a 4-layer board with a dedicated ground plane directly beneath the CPLD to control impedance and provide thermal relief. Keep JTAG signals (TDI, TDO, TMS, TCK) routed with 50-ohm controlled impedance and length-matched within 25 mm if multiple devices share the JTAG chain.
Do not exceed 3.6V on VCCINT or VCCIO; absolute maximum stress will damage the EEPROM cells. When migrating designs from older MAX 7000 (non-A) parts, note that the MAX 7000A adds MultiVolt I/O banks - leaving a VCCIO bank unpowered while driving the I/O pins is unsafe. Always power unused VCCIO pins even if their I/O pins are tri-stated to prevent I/O leakage.
コンプライアンス情報
Original Altera EPM7256ATI144-10 uses SnPb lead finish (non-RoHS). For RoHS compliance choose the N-suffix variant EPM7256ATI144-10N. AEC-Q100 not applicable — this is a commercial/industrial CPLD, not an automotive-grade part.