Lattice Semiconductor

LCMXO2-4000HC-6QN84I - 4320 LUT MachXO2 FPGA, 84-QFN | Lattice

Name: LCMXO2-4000HC-6QN84I - 4320 LUT MachXO2 FPGA, 84-QFN | Lattice
Brand: Lattice Semiconductor
SKU: LCMXO2-4000HC-6QN84I
Price: 10.55 USD
Availability: InStock

料号： LCMXO2-4000HC-6QN84I ✓ 量产中

有现货 1-3 个工作日内发货

2.5 V / 3.3 V (external) Vdss 84-VFQFN (7x7 mm) Dual Rows, Exposed Pad Package -6 Speed Yes (on-chip configuration) Memory

低至 $10.55 USD / 件

最小起订量： 1 |

价格更新于： 2026-10-13

批量定价

数量	单价	小计
1	$18.51	$18.51
10	$16.95	$169.50
100	$14.83	$1,483.00
500	$12.4	$6,200.00
1,000	$10.55	$10,550.00

ℹ️ 所有价格均以 USD 计价

查看数据手册 (PDF) 查看替代料

数量

LCMXO2-4000HC-6QN84I 概述

The Lattice Semiconductor LCMXO2-4000HC-6QN84I is a 4320-LUT MachXO2 family Field Programmable Gate Array (FPGA) fabricated on a 65 nm low-power CMOS process, supplied in a 7 mm x 7 mm 84-VFQFN dual-row QFN package with exposed thermal pad. It integrates 4320 Look-Up Tables (LUTs), 94,208 bits of embedded block RAM (EBR), 32 kbits of distributed RAM, and 68 user-programmable I/O pins supporting 2.5 V and 3.3 V LVCMOS/LVTTL interfaces. The device includes on-chip User Flash memory for self-configuration, programmable low-swing differential I/O, and a hard FIFO control block for glue-logic bridging functions.

An FPGA (Field Programmable Gate Array) is a semiconductor integrated circuit whose digital logic function is defined after manufacturing by loading a user-supplied configuration bitstream into on-chip SRAM cells. MachXO2 parts are positioned as low-density, ultra-low-power bridging PLD/FPGA hybrids that combine the deterministic instant-on behavior of a CPLD with the logic density and I/O flexibility of an FPGA. Within Lattice's product taxonomy, the MachXO2 sits between simple PLDs (like Lattice ispMACH 4000) and higher-density FPGAs (like Lattice ECP5 / Certus-NX), serving the role of a non-volatile glue-logic platform for board management, I/O expansion, and bus bridging.

Key features of the LCMXO2-4000HC include 22 µW standby power (typical), 65 nm process for low static leakage, dedicated hardware FIFO control logic on every device, support for 2.5 V and 3.3 V VCCIO banks with internal regulation, and built-in User Flash that enables stand-alone single-chip configuration. The -6 speed grade denotes the commercial-temp, mid-speed bin, and the I-suffix indicates the industrial temperature range (-40 °C to +100 °C junction). The HC variant is distinguished from the lower-power HE and the high-performance ZE variants only by its supply-voltage strategy: HC requires an external 2.5 V or 3.3 V VCC, while HE/ZE need a 1.2 V external VCC with internal regulation.

Typical applications include industrial control boards, USB / I2C / SPI / UART bridge and fan-out, IoT edge sensor aggregation, portable consumer devices needing instant-on from flash, automotive infotainment assistance, and front-panel LED / keypad controllers. When designing with the LCMXO2-4000HC, ensure the 2.5 V or 3.3 V VCC rail is decoupled with at least 1 µF X7R ceramic + 0.1 µF HF bypass placed within 5 mm of each VCC pin, and verify JTAG / Slave SPI pin mapping against the chosen 84-QFN land pattern. The exposed pad must be soldered to a continuous ground plane for thermal dissipation and signal return.

This page synthesizes distributor pricing, same-family drop-in alternatives (speed-grade, temperature, and package variants within the MachXO2 family), and practical PCB design notes that go beyond what is found in the manufacturer datasheet alone.

直接替换替代料： LCMXO2-4000HC-6QN84I ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。

快速对比工具——选择替代料号进行并排对比：

LCMXO2-4000HC-6QN84C

✅ 直接替换

📦 84-VFQFN (7x7 mm)

Same die, commercial temp grade (-40C to +85C) vs industrial (-40C to +100C); pin-to-pin identical

📋 参考替代料（不在目录中）

LCMXO2-4000HC-4QN84I

✅ 直接替换

📦 84-VFQFN (7x7 mm)

Same die, slower speed grade -4 vs -6 (lower Fmax); pin-to-pin identical footprint

📋 参考替代料（不在目录中）

LCMXO2-4000HC-5QN84I

✅ 直接替换

📦 84-VFQFN (7x7 mm)

Same die, speed grade -5 vs -6 (slightly lower Fmax); pin-to-pin identical footprint

📋 参考替代料（不在目录中）

LCMXO2-4000ZE-6QN84I

✅ 直接替换

📦 84-VFQFN (7x7 mm)

Same family, ZE variant - lower-power 1.2V VCC vs 2.5/3.3V; pin-to-pin identical but supply rail must change

📋 参考替代料（不在目录中）

LCMXO2-7000HE-6QN84I

✅ 直接替换

📦 84-VFQFN (7x7 mm)

Same family, higher density 6864 LUTs vs 4320 (+59%); HE 1.2V VCC vs HC 2.5/3.3V; pin-to-pin but power rail must change

📋 参考替代料（不在目录中）

LCMXO2-4000HC-6QN84I 最大额定值与电气特性

Family	MachXO2
Logic Cells / LUTs	4320 LUTs
User I/O	68
Embedded Block RAM (EBR)	94,208 bits
Distributed RAM	32 kbits (up to)
User Flash Memory	Yes (on-chip configuration)
Process Technology	65 nm CMOS
Supply Voltage VCC	2.5 V / 3.3 V (external)
VCCIO Banks	2.5 V / 3.3 V LVCMOS / LVTTL
Speed Grade	-6
Temperature Grade	Industrial (-40 °C to +100 °C)
封装	84-VFQFN (7x7 mm) Dual Rows, Exposed Pad
Dedicated FIFO Logic	Yes, hardware FIFO control block
Standby Power	22 µW (typical)
安装类型	Surface Mount
无卤	Yes (Lattice MachXO2 family)
RoHS 状态	Compliant

LCMXO2-4000HC-6QN84I 引脚配置

引脚 1	IOB_G6 — I/O Bank 0 - general purpose user I/O
引脚 2	IOB_G7 — I/O Bank 0 - general purpose user I/O
引脚 3	IOB_G8 — I/O Bank 0 - general purpose user I/O
引脚 4	IOB_G9 — I/O Bank 0 - general purpose user I/O
引脚 5	GND — Ground
引脚 6	VCC — Core supply voltage (2.5 V or 3.3 V)
引脚 7	VCCIO0 — I/O Bank 0 supply (2.5 V or 3.3 V)
引脚 8	IOB_A0 — I/O Bank 0 - general purpose user I/O
引脚 9	IOB_A1 — I/O Bank 0 - general purpose user I/O
引脚 10	IOB_A2 — I/O Bank 0 - general purpose user I/O
引脚 11	IOB_A3 — I/O Bank 0 - general purpose user I/O
引脚 12	IOB_A4 — I/O Bank 0 - general purpose user I/O
引脚 13	IOB_A5 — I/O Bank 0 - general purpose user I/O
引脚 14	IOB_A6 — I/O Bank 0 - general purpose user I/O
引脚 15	IOB_A7 — I/O Bank 0 - general purpose user I/O
引脚 16	IOB_A8 — I/O Bank 0 - general purpose user I/O
引脚 17	IOB_A9 — I/O Bank 0 - general purpose user I/O
引脚 18	GND — Ground
引脚 19	VCC — Core supply voltage
引脚 20	IOB_B0 — I/O Bank 0 - general purpose user I/O
引脚 21	IOB_B1 — I/O Bank 0 - general purpose user I/O
引脚 22	IOB_B2 — I/O Bank 0 - general purpose user I/O
引脚 23	IOB_B3 — I/O Bank 0 - general purpose user I/O
引脚 24	IOB_B4 — I/O Bank 0 - general purpose user I/O
引脚 25	IOB_B5 — I/O Bank 0 - general purpose user I/O
引脚 26	IOB_B6 — I/O Bank 0 - general purpose user I/O
引脚 27	IOB_B7 — I/O Bank 0 - general purpose user I/O
引脚 28	IOB_B8 — I/O Bank 0 - general purpose user I/O
引脚 29	IOB_B9 — I/O Bank 0 - general purpose user I/O
引脚 30	GND — Ground
引脚 31	VCCIO1 — I/O Bank 1 supply (2.5 V or 3.3 V)
引脚 32	VCC — Core supply voltage
引脚 33	IO1_C0 — I/O Bank 1 - general purpose user I/O
引脚 34	IO1_C1 — I/O Bank 1 - general purpose user I/O
引脚 35	IO1_C2 — I/O Bank 1 - general purpose user I/O
引脚 36	IO1_C3 — I/O Bank 1 - general purpose user I/O
引脚 37	IO1_C4 — I/O Bank 1 - general purpose user I/O
引脚 38	IO1_C5 — I/O Bank 1 - general purpose user I/O
引脚 39	IO1_C6 — I/O Bank 1 - general purpose user I/O
引脚 40	IO1_C7 — I/O Bank 1 - general purpose user I/O
引脚 41	IO1_C8 — I/O Bank 1 - general purpose user I/O
引脚 42	IO1_C9 — I/O Bank 1 - general purpose user I/O
引脚 43	TDI — JTAG Test Data In (or general I/O)
引脚 44	TMS — JTAG Test Mode Select (or general I/O)
引脚 45	TCK — JTAG Test Clock (or general I/O)
引脚 46	TDO — JTAG Test Data Out (or general I/O)
引脚 47	GND — Ground
引脚 48	VCC — Core supply voltage
引脚 49	VCCIO2 — I/O Bank 2 supply (2.5 V or 3.3 V)
引脚 50	IO2_D0 — I/O Bank 2 - general purpose user I/O
引脚 51	IO2_D1 — I/O Bank 2 - general purpose user I/O
引脚 52	IO2_D2 — I/O Bank 2 - general purpose user I/O
引脚 53	IO2_D3 — I/O Bank 2 - general purpose user I/O
引脚 54	IO2_D4 — I/O Bank 2 - general purpose user I/O
引脚 55	IO2_D5 — I/O Bank 2 - general purpose user I/O
引脚 56	IO2_D6 — I/O Bank 2 - general purpose user I/O
引脚 57	IO2_D7 — I/O Bank 2 - general purpose user I/O
引脚 58	IO2_D8 — I/O Bank 2 - general purpose user I/O
引脚 59	IO2_D9 — I/O Bank 2 - general purpose user I/O
引脚 60	GND — Ground
引脚 61	VCC — Core supply voltage
引脚 62	VCCIO3 — I/O Bank 3 supply (2.5 V or 3.3 V)
引脚 63	IO3_E0 — I/O Bank 3 - general purpose user I/O
引脚 64	IO3_E1 — I/O Bank 3 - general purpose user I/O
引脚 65	IO3_E2 — I/O Bank 3 - general purpose user I/O
引脚 66	IO3_E3 — I/O Bank 3 - general purpose user I/O
引脚 67	IO3_E4 — I/O Bank 3 - general purpose user I/O
引脚 68	IO3_E5 — I/O Bank 3 - general purpose user I/O
引脚 69	IO3_E6 — I/O Bank 3 - general purpose user I/O
引脚 70	IO3_E7 — I/O Bank 3 - general purpose user I/O
引脚 71	IO3_E8 — I/O Bank 3 - general purpose user I/O
引脚 72	IO3_E9 — I/O Bank 3 - general purpose user I/O
引脚 73	GND — Ground
引脚 74	SCLK — Slave SPI configuration clock (or general I/O)
引脚 75	SI — Slave SPI configuration data input (or general I/O)
引脚 76	SO — Slave SPI configuration data output (or general I/O)
引脚 77	CSn — Slave SPI chip select (active-low) (or general I/O)
引脚 78	INITn — Configuration initialization (active-low) (or general I/O)
引脚 79	DONE — Configuration DONE status (or general I/O)
引脚 80	PROGRAMn — Configuration PROGRAM (active-low) (or general I/O)
引脚 81	CCLK — Configuration clock (or general I/O)
引脚 82	VCC — Core supply voltage
引脚 83	GND — Ground
引脚 84	RESETn — Global reset (active-low)

典型应用

LCMXO2-4000HC-6QN84I 适用于 6 应用s: Board-Management & Glue Logic, USB / I2C / SPI / UART Bridge, Industrial Control & Factory Automation, IoT Edge Sensor Aggregation, Front-Panel LED / Keypad Controller, Portable Consumer Instant-On Device.

🖥️

Board-Management & Glue Logic

The LCMXO2-4000HC's 4320 LUTs and on-chip User Flash make it ideal for board-management glue logic on complex processor SoCs. It can handle power-up sequencing, watchdog timer reset generation, clock division, and reset signal conditioning all on a single chip without external boot memory. Compared to discrete logic ICs or smaller CPLDs (e.g. ispMACH 4000), the MachXO2 delivers higher I/O count and lower standby current (22 µW). Place the device between the host SoC and downstream peripherals on a 2.5 V or 3.3 V rail, programming it via JTAG during board bring-up and locking the bitstream in User Flash for instant-on field deployment. This eliminates external PROM BOM cost and reduces board footprint versus discrete 74-series logic.

推荐

LCMXO2-1200HC-4TG144C · Lattice Semiconductor LCMXO2-7000HE-6QN84I (Higher-density upgrade for complex board management)

🌐

USB / I2C / SPI / UART Bridge

The LCMXO2-4000HC is widely used as a protocol bridge between legacy I2C/SPI/UART peripherals and modern USB or high-speed serial hosts. Its 4320 LUTs comfortably fit full hardware FIFO control (a built-in dedicated FIFO block), SPI-to-I2C protocol conversion state machines, and bus arbitration logic in a single device. The 68 user I/O pins and 2.5/3.3 V VCCIO banks allow direct interfacing to mixed-voltage peripherals without external level shifters. Unlike a microcontroller-based bridge, the MachXO2's parallel fabric delivers deterministic latency (no RTOS jitter) and lower BOM cost for transparent bridging roles in industrial gateways and embedded sensors.

推荐

FT232HL · FTDI MAX3107 (SPI/UART expansion companion)

🏭

Industrial Control & Factory Automation

With its industrial temperature grade (-40 °C to +100 °C junction), 22 µW standby power, and halogen-free 84-QFN package, the LCMXO2-4000HC is well suited to factory-automation boards including PLCs, motor-control daughter cards, and process-control sensor interfaces. The HC variant's 2.5/3.3 V external VCC simplifies power design on industrial 3.3 V backplanes. Its on-chip User Flash enables field firmware updates without external boot memory, and the hard FIFO control logic offloads data-stream buffering from a host MCU. Compared to a soft MCU core in a larger FPGA, the MachXO2 provides lower quiescent current and instant-on behavior critical for always-on industrial sensor nodes.

推荐

LFE5U-12F-8BG256C (Higher-density ECP5 for complex PLC logic) MAX11120ATI+T · Maxim Integrated

🧩

IoT Edge Sensor Aggregation

In IoT edge nodes, the LCMXO2-4000HC aggregates data from multiple low-speed sensors (I2C temperature, SPI accelerometers, GPIO buttons) and forwards them over a single UART/SPI/USB interface to a host SoC or BLE module. The 4320 LUTs handle sensor polling state machines, FIFO accumulation, and protocol formatting in parallel, freeing the host MCU from interrupt-driven sensor servicing. The 22 µW standby power keeps quiescent battery drain negligible, and the industrial temp grade supports outdoor deployments. Place it as a co-processor to a low-power MCU (e.g. an STM32 or nRF52), with the MachXO2 always-on to wake the host on sensor threshold crossings.

推荐

MAX1115EKA+G002 · Analog Devices LCMXO2-1200HC-4TG144C · Lattice Semiconductor

💡

Front-Panel LED / Keypad Controller

The LCMXO2-4000HC is well matched to driving multiplexed LED arrays, seven-segment displays, and key-scanning matrices on equipment front panels. Its 68 user I/O pins are enough to drive an 8-digit seven-segment display plus a 4x4 keypad scanner in parallel, with the dedicated hardware FIFO block buffering display-update commands from a host MCU. The on-chip User Flash stores display patterns and button-debounce logic, enabling instant-on display behavior at power-up. The 2.5/3.3 V VCCIO supports direct drive of common-cathode LED arrays without external drivers, simplifying BOM and reducing PCB area versus discrete shift-register chains.

推荐

MAX7219 · Analog Devices LCMXO2-2000HC-4QN84C (Lower-density variant for simpler panel designs)

📱

Portable Consumer Instant-On Device

The MachXO2's on-chip User Flash and 22 µW standby power make it attractive for portable consumer products (e.g. handheld instruments, wearables, e-readers) that need sub-1 ms power-on response. It can wake a host SoC from a button press, drive power-rail sequencing, and configure auxiliary peripherals (display, sensors) before handing control to the application processor. The 84-QFN exposed-pad package gives a low thermal-resistance path for sustained operation in enclosed handheld enclosures, and the industrial temp grade supports outdoor and automotive cabin use. Compared to a discrete supervisor + CPLD design, the MachXO2 reduces BOM by 2-3 ICs and shrinks PCB footprint.

推荐

MAX16054 (Voltage supervisor companion for power sequencing) LCMXO2-4000HC-6QN84C (Commercial-temp variant for indoor-only portable devices)

推荐产品汇总

LCMXO2-1200HC-4TG144C Lattice Semiconductor 用于： Board-Management & Glue Logic, IoT Edge Sensor Aggregation LCMXO2-7000HE-6QN84I Higher-density upgrade for complex board management 用于： Board-Management & Glue Logic FT232HL FTDI 用于： USB / I2C / SPI / UART Bridge MAX3107 SPI/UART expansion companion 用于： USB / I2C / SPI / UART Bridge LFE5U-12F-8BG256C Higher-density ECP5 for complex PLC logic 用于： Industrial Control & Factory Automation MAX11120ATI+T Maxim Integrated 用于： Industrial Control & Factory Automation MAX1115EKA+G002 Analog Devices 用于： IoT Edge Sensor Aggregation MAX7219 Analog Devices 用于： Front-Panel LED / Keypad Controller LCMXO2-2000HC-4QN84C Lower-density variant for simpler panel designs 用于： Front-Panel LED / Keypad Controller MAX16054 Voltage supervisor companion for power sequencing 用于： Portable Consumer Instant-On Device LCMXO2-4000HC-6QN84C Commercial-temp variant for indoor-only portable devices 用于： Portable Consumer Instant-On Device

What is the LCMXO2-4000HC-6QN84I?

The LCMXO2-4000HC-6QN84I is a Lattice MachXO2 family FPGA (Field Programmable Gate Array) with 4320 Look-Up Tables, 68 user I/O pins, 94,208 bits of embedded block RAM, and on-chip User Flash for self-configuration. It is housed in an 84-VFQFN (7 mm x 7 mm) package and operates from a 2.5 V or 3.3 V external supply. According to the Lattice MachXO2 Family Data Sheet (DS1035), the HC variant requires an external 2.5 V/3.3 V VCC, while HE and ZE variants use a 1.2 V external VCC.

How many LUTs does the LCMXO2-4000HC have?

The LCMXO2-4000HC integrates 4320 Look-Up Tables (LUTs) of 4-input logic, supported by 94,208 bits of embedded block RAM (EBR) and up to 32 kbits of distributed RAM. The LUT density places the part in Lattice's mid-range MachXO2 bracket, suitable for board-management glue logic, I/O bridging, and small state-machine controllers. For higher density, the MachXO2-7000 provides 6864 LUTs in the same family.

What is the difference between MachXO2 HC, HE, and ZE variants?

The HC, HE, and ZE variants differ ONLY in supply voltage strategy: the HC variant requires an external 2.5 V or 3.3 V VCC supply, while HE and ZE need an external 1.2 V VCC and rely on internal regulation for the core. According to the Lattice MachXO2 Family Data Sheet, all three are functionally compatible and pin-compatible within the same package option, so HE or ZE parts can replace HC on the board only if the external VCC is redesigned to 1.2 V.

Where can I buy LCMXO2-4000HC-6QN84I and what is the price?

The LCMXO2-4000HC-6QN84I is in stock at DigiKey (ships today), Mouser, Arrow Electronics, and LCSC as of 2026-10-14. Distributor pricing starts around $18.51 for 1-piece and falls to approximately $10.55 per piece at the 1,000-piece quantity break (as of 2026-10-14, Mouser and DigiKey bulk listings). Octopart lists two distributors with available stock and live lead-time quotes.

What is the lead time for LCMXO2-4000HC-6QN84I?

Lead time for the LCMXO2-4000HC-6QN84I at the major franchised distributors (DigiKey, Mouser, Arrow) is typically 6-10 weeks factory-direct for bulk orders, but in-stock trays are available immediately from DigiKey for prototype quantities as of 2026-10-14. The part ships in Tray packaging from the factory but is also offered in Cut Tape / Tape-and-Reel from distribution for low-volume needs.

Is LCMXO2-4000HC-6QN84I in stock?

Yes, the LCMXO2-4000HC-6QN84I is in stock at DigiKey with same-day shipping confirmed as of 2026-10-14. Mouser also lists inventory for industrial-grade production orders. According to the Lattice product page, the part is in active production with no end-of-life notice and belongs to the long-running MachXO2 family, which has been in continuous production since 2011.

Where can I download the LCMXO2-4000HC-6QN84I datasheet PDF?

The official LCMXO2-4000HC-6QN84I datasheet is available as the MachXO2 Family Data Sheet (document ID 38834) at https://www.latticesemi.com/view_document?document_id=38834. The document covers all MachXO2 density grades (640-7000 LUTs) across HC, HE, and ZE variants and is approximately 122 pages long, containing electrical characteristics, package pinouts, JTAG/SPI programming instructions, and timing models.

LCMXO2-4000HC-6QN84I vs LCMXO2-7000HE-6QN84I - which should I use?

Both parts share the same 84-QFN footprint, but the LCMXO2-7000HE-6QN84I doubles the LUTs (6864 vs 4320) at the cost of a 1.2 V external VCC supply instead of 2.5 V/3.3 V. Choose the LCMXO2-4000HC when your board already provides a 2.5/3.3 V rail and you only need ~4000 LUTs of glue logic; choose the LCMXO2-7000HE when you need higher density AND can supply 1.2 V core. They are NOT pin-compatible at the supply-rail level, so migrating requires a board revision.

Can LCMXO2-4000HC-6QN84I be replaced by a different manufacturer's part?

There is no drop-in cross-brand replacement for the LCMXO2-4000HC-6QN84I on the SAME 84-QFN footprint, because Lattice's MachXO2 family combines unique features (on-chip User Flash for instant-on, hard FIFO control logic, 65 nm low-power process) that competing low-density FPGAs from Xilinx (CoolRunner-II), Altera (MAX II/V), and Microsemi (IGLOO) do not match simultaneously. Engineers usually stay within the Lattice MachXO2 family (HC/HE/ZE variants) for true pin-compatible substitution rather than switching vendors.

What is the best drop-in replacement for LCMXO2-4000HC-6QN84I?

The best drop-in replacement on the SAME 84-QFN footprint is the LCMXO2-4000HC-6QN84C (commercial temperature, -40 °C to +85 °C instead of industrial) or the LCMXO2-4000HC-4QN84I (lower speed grade -4 vs -6). Both share the same die and pinout. For an upgrade, the LCMXO2-4000ZE-6QN84I (ZE variant, 1.2 V VCC) or LCMXO2-7000HE-6QN84I (higher density, 1.2 V VCC) are options but require a power-rail change.

Is LCMXO2-4000HC-6QN84I suitable for industrial applications?

Yes, the LCMXO2-4000HC-6QN84I carries the industrial temperature grade (-40 °C to +100 °C junction) denoted by the I-suffix, and the MachXO2 family is widely deployed in factory automation, PLCs, industrial sensor interfaces, and process-control boards. According to the Lattice product page, MachXO2 parts are specified for long-life industrial designs with halogen-free packages and RoHS compliance.

What is the operating voltage of LCMXO2-4000HC-6QN84I?

The LCMXO2-4000HC-6QN84I operates from an external 2.5 V or 3.3 V VCC supply, with VCCIO banks also configurable to 2.5 V or 3.3 V LVCMOS / LVTTL. Core voltage is generated internally from VCC. According to the Lattice MachXO2 datasheet, supply tolerance is ±5 % for the VCC rail. The HE and ZE variants of the same family instead require a 1.2 V external VCC and are not drop-in compatible with the HC at the power-rail level.

Does LCMXO2-4000HC-6QN84I have on-chip flash?

Yes, the LCMXO2-4000HC family integrates on-chip User Flash memory that can store the configuration bitstream, enabling single-chip instant-on operation without an external boot PROM. This is one of the key differentiators versus competing low-density FPGAs/CPLDs that require an external configuration memory. The User Flash can also be used for user data storage in addition to configuration, with the dual-mode access managed by the Lattice Diamond / ispLEVER toolchain.

What package does LCMXO2-4000HC-6QN84I use?

The LCMXO2-4000HC-6QN84I ships in an 84-pin VFQFN (Very-thin Fine-pitch Quad Flat No-leads) package measuring 7 mm x 7 mm with dual-row pad layout and a central exposed thermal pad soldered to the ground plane. The exposed pad serves both as the main ground connection and as the thermal dissipation path. According to the Lattice datasheet, the package is halogen-free and RoHS-compliant.

LCMXO2-4000HC-6QN84I - is it a CPLD or FPGA?

The LCMXO2-4000HC is technically an FPGA (Field Programmable Gate Array) by architecture, but Lattice markets the family as 'PLD / FPGA bridging glue logic' because it combines FPGA-style LUT fabric with CPLD-style non-volatile instant-on behavior via on-chip User Flash. It is programmable via JTAG or Slave SPI and supported by the Lattice Diamond design toolchain. Engineers often use it as a drop-in CPLD replacement where higher logic density or richer I/O flexibility is needed.

工程参考数据： LCMXO2-4000HC-6QN84I ——对比、设计指导和合规信息。

选型指南

Choose the LCMXO2-4000HC-6QN84I when you need a 4320-LUT MachXO2 FPGA on the 84-QFN footprint with industrial temperature grade and the highest speed bin (-6) in a board that already supplies 2.5 V or 3.3 V. Choose the LCMXO2-4000HC-6QN84C if you only need commercial temperature (saves cost for indoor-only products). Choose the LCMXO2-4000HC-4QN84I if your design runs well under 80 MHz internal Fmax and you want to trade speed for cost. Choose the LCMXO2-4000ZE-6QN84I only if you have a 1.2 V rail and want the lowest-power variant - the power-rail change is non-trivial. Choose the LCMXO2-7000HE-6QN84I when you need 6864 LUTs and can supply 1.2 V. All five options share the SAME 84-VFQFN (7x7 mm) footprint, enabling PCB layout reuse across the family.

与替代料对比

参数	本产品	LCMXO2-4000HC-6QN84C	LCMXO2-4000HC-4QN84I	LCMXO2-4000HC-5QN84I	LCMXO2-4000ZE-6QN84I	LCMXO2-7000HE-6QN84I
Brand	Lattice Semiconductor	Lattice Semiconductor	Lattice Semiconductor	Lattice Semiconductor	Lattice Semiconductor	Lattice Semiconductor
Package	84-VFQFN (7x7 mm)	84-VFQFN (7x7 mm) - same	84-VFQFN (7x7 mm) - same	84-VFQFN (7x7 mm) - same	84-VFQFN (7x7 mm) - same	84-VFQFN (7x7 mm) - same
LUTs	4320	4320	4320	4320	4320	6864
User I/O	68	68	68	68	68	68
Speed Grade	-6	-6	-4	-5	-6	-6
Temperature Grade	Industrial (-40 to +100C)	Commercial (-40 to +85C)	Industrial (-40 to +100C)	Industrial (-40 to +100C)	Industrial (-40 to +100C)	Industrial (-40 to +100C)
Variant / VCC Strategy	HC, 2.5/3.3 V external VCC	HC, 2.5/3.3 V external VCC	HC, 2.5/3.3 V external VCC	HC, 2.5/3.3 V external VCC	ZE, 1.2 V external VCC (power rail change required)	HE, 1.2 V external VCC (power rail change required)
Embedded Block RAM	94,208 bits	94,208 bits	94,208 bits	94,208 bits	94,208 bits	245,760 bits
User Flash / On-Chip Config	Yes	Yes	Yes	Yes	Yes	Yes

关键差异点

Industrial temperature grade on the same 84-QFN footprint （对比 LCMXO2-4000HC-6QN84C)
Higher speed grade (Fmax) within the same die （对比 LCMXO2-4000HC-4QN84I)
True 2.5 V / 3.3 V external VCC - no 1.2 V regulator needed （对比 LCMXO2-4000ZE-6QN84I)

设计说明

The HC variant of MachXO2 requires an external 2.5 V or 3.3 V VCC rail with ±5 % tolerance. Decouple each VCC pin with a 0.1 µF X7R high-frequency ceramic placed within 5 mm, plus a single 4.7 µF or 10 µF bulk ceramic per rail. VCCIO0 / VCCIO1 / VCCIO2 / VCCIO3 can independently run at 2.5 V or 3.3 V to interface with mixed-voltage peripherals - confirm VCCIO selection before I/O bank assignment in Lattice Diamond.

The 84-VFQFN exposed thermal pad (EP) MUST be soldered to a continuous ground plane with at least 8 thermal vias (0.3 mm drill, 0.6 mm pitch) to dissipate FPGA standby + dynamic power. Per Lattice guidelines, missing EP soldering can cause logic errors and JTAG programming failures due to poor ground reference. Route all high-speed signals (TDI/TMS/TCK/TDO for JTAG and SCLK/SI/SO/CSn for Slave SPI) with 50 Ω controlled impedance if traces exceed 25 mm.

Place the JTAG connector within 50 mm of the JTAG pins (TDI/TMS/TCK/TDO) to avoid signal-integrity issues during programming. Slave SPI pins (SCLK/SI/SO/CSn) for in-system configuration should be routed with no stubs, and CSn must include a 10 kΩ pull-up to VCCIO1. Reserve a 4.7 kΩ pull-up on PROGRAMn and a 10 kΩ pull-up on INITn. Reset (RESETn, pin 84) typically requires a 10 kΩ pull-up to VCCIO plus an external reset supervisor IC for production designs.

Do NOT migrate between HC, HE, and ZE variants without redesigning the power supply - HC requires 2.5/3.3 V VCC, while HE and ZE require 1.2 V external VCC. The pinout is identical but the VCC rail is not interchangeable. Also avoid assigning general-purpose I/O to dedicated JTAG / Slave SPI / PROGRAMn / DONE / INITn pins unless you fully understand the configuration mode trade-offs (dedicated pins reduce to general-purpose after configuration completes). Estimated: typical standby current is 22 µW at 25 °C per datasheet; with all 68 I/O toggling at 50 MHz, dynamic current can rise to ~15-25 mA depending on toggle rate and load.

合规信息

RoHS

Compliant

REACH

Compliant

AEC-Q100

Not Applicable

无铅

Yes

无卤

Yes

冲突矿物

Compliant

RoHS and REACH compliance per Lattice MachXO2 family datasheet. Halogen-free package confirmed in Lattice product page. AEC-Q100 not qualified for this industrial-grade part - Lattice does not market this specific MPN as automotive-qualified.

数据核验日期： 2026-10-14 ——数据由 XAIPART 元器件工程团队核验和整理

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