LC4128V-75TN100C - 128-Macrocell CPLD, 7.5ns TQFP-100 | Lattice
MPN: LC4128V-75TN100C ✓ Hoạt độngLC4128V-75TN100C Tóm tắt
A Complex Programmable Logic Device (CPLD) is a non-volatile, instantly-on programmable logic device that implements combinatorial and sequential logic in a single chip, typically organized as multiple PAL-like logic blocks connected by a programmable interconnect matrix. CPLDs sit below FPGAs in logic density but offer faster, more deterministic propagation delays and instant wake-up from power-on, which is why they are favored for glue logic, bus bridging, and control-plane applications.
Key features of the LC4128V-75TN100C include 128 macrocells across 4 logic blocks (32 macrocells per block), 64 user I/O pins, JTAG-based IEEE 1149.1 boundary-scan and in-system programmability, four global clock pins with programmable polarity, and a 3.3V core with multi-voltage I/O supporting 1.8V, 2.5V, and 3.3V interfaces. Power consumption is managed through per-macrocell product-term steering and a low-power standby mode.
The device is built on a non-volatile E2CMOS process, which means configuration is retained without external memory and the part is ready to operate within microseconds of power-up. The wide I/O voltage compatibility allows direct interfacing with legacy 5V-tolerant buses through external resistors and with modern 1.8V/2.5V/3.3V processors without level shifters.
Typical applications include bus-interface bridging (PCI to local bus, address decoding), glue logic in industrial controllers, power-sequencer replacement of discrete logic, and feature expansion for ASIC/microcontroller pin-limited designs. It is commonly used in telecom line cards, motor-control boards, and instrumentation front-ends where deterministic timing is required.
When designing with the LC4128V-75TN100C, ensure the JTAG chain order is correctly defined for ISP, observe the 3.3V supply ramp requirements, and verify that the chosen I/O standard matches the bank voltage. Unused I/O pins must be configured as outputs or tri-stated with the proper termination to avoid leakage.
This page consolidates distributor pricing, true drop-in same-package alternatives, application circuit notes, and design-time considerations that the manufacturer datasheet does not compile on a single page, helping engineers shorten evaluation cycles.
Bộ thay thế dễ dàng lắp đặt cho LC4128V-75TN100C — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
LC4128V-75T100C
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LC4128V-75TN100I
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LC4128V-75TN100-101
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
LC4128V-10TN100C
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LC4128V-5TN100C
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LC4128B-75TN100C
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LC4128V-75TN100C Tỷ lệ tối đa & tính chất điện
| Family | ispMACH 4000V |
| Device Type | CPLD - Complex Programmable Logic Device |
| Macro Cells | 128 |
| Number of Logic Blocks | 4 (32 macrocells each) |
| User I/O | 64 |
| Propagation Delay (tPD) | 7.5 ns |
| Maximum Operating Frequency (fMAX) | 400 MHz |
| Supply Voltage (Core) | 3.3 V |
| I/O Voltage Support | 1.8 V / 2.5 V / 3.3 V |
| Global Clock Pins | 4 (programmable polarity) |
| In-System Programmability | IEEE 1149.1 JTAG |
| Hộp | TQFP-100 (TN) |
| Process Technology | E2CMOS non-volatile |
| Nhiệt độ hoạt động | 0C to +90C (Commercial) |
| Trạng thái RoHS | Compliant |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân LC4128V-75TN100C
| Chân 1 | I/O — General purpose I/O - Bank 0 |
| Chân 2 | I/O — General purpose I/O - Bank 0 |
| Chân 3 | I/O — General purpose I/O - Bank 0 |
| Chân 4 | I/O — General purpose I/O - Bank 0 |
| Chân 5 | I/O — General purpose I/O - Bank 0 |
| Chân 6 | I/O — General purpose I/O - Bank 0 |
| Chân 7 | I/O — General purpose I/O - Bank 0 |
| Chân 8 | I/O — General purpose I/O - Bank 0 |
| Chân 9 | GND — Ground |
| Chân 10 | I/O — General purpose I/O - Bank 0 |
| Chân 11 | I/O — General purpose I/O - Bank 0 |
| Chân 12 | I/O — General purpose I/O - Bank 0 |
| Chân 13 | I/O — General purpose I/O - Bank 0 |
| Chân 14 | I/O — General purpose I/O - Bank 0 |
| Chân 15 | I/O — General purpose I/O - Bank 0 |
| Chân 16 | I/O — General purpose I/O - Bank 0 |
| Chân 17 | VCCIO0 — Bank 0 I/O supply voltage (1.8V/2.5V/3.3V) |
| Chân 18 | I/O — General purpose I/O - Bank 0 |
| Chân 19 | I/O — General purpose I/O - Bank 0 |
| Chân 20 | I/O — General purpose I/O - Bank 0 |
| Chân 21 | I/O — General purpose I/O - Bank 0 |
| Chân 22 | I/O — General purpose I/O - Bank 0 |
| Chân 23 | I/O — General purpose I/O - Bank 0 |
| Chân 24 | I/O — General purpose I/O - Bank 0 |
| Chân 25 | GND — Ground |
| Chân 26 | I/O — General purpose I/O - Bank 0 |
| Chân 27 | I/O — General purpose I/O - Bank 0 |
| Chân 28 | I/O — General purpose I/O - Bank 0 |
| Chân 29 | I/O — General purpose I/O - Bank 0 |
| Chân 30 | VCC — Core supply voltage (3.3V) |
| Chân 31 | I/O — General purpose I/O - Bank 1 |
| Chân 32 | I/O — General purpose I/O - Bank 1 |
| Chân 33 | I/O — General purpose I/O - Bank 1 |
| Chân 34 | I/O — General purpose I/O - Bank 1 |
| Chân 35 | I/O — General purpose I/O - Bank 1 |
| Chân 36 | I/O — General purpose I/O - Bank 1 |
| Chân 37 | I/O — General purpose I/O - Bank 1 |
| Chân 38 | I/O — General purpose I/O - Bank 1 |
| Chân 39 | GND — Ground |
| Chân 40 | I/O — General purpose I/O - Bank 1 |
| Chân 41 | I/O — General purpose I/O - Bank 1 |
| Chân 42 | I/O — General purpose I/O - Bank 1 |
| Chân 43 | I/O — General purpose I/O - Bank 1 |
| Chân 44 | I/O — General purpose I/O - Bank 1 |
| Chân 45 | I/O — General purpose I/O - Bank 1 |
| Chân 46 | I/O — General purpose I/O - Bank 1 |
| Chân 47 | I/O — General purpose I/O - Bank 1 |
| Chân 48 | VCCIO1 — Bank 1 I/O supply voltage (1.8V/2.5V/3.3V) |
| Chân 49 | I/O — General purpose I/O - Bank 1 |
| Chân 50 | I/O — General purpose I/O - Bank 1 |
| Chân 51 | I/O — General purpose I/O - Bank 1 |
| Chân 52 | I/O — General purpose I/O - Bank 1 |
| Chân 53 | I/O — General purpose I/O - Bank 1 |
| Chân 54 | I/O — General purpose I/O - Bank 1 |
| Chân 55 | I/O — General purpose I/O - Bank 1 |
| Chân 56 | GND — Ground |
| Chân 57 | I/O — General purpose I/O - Bank 1 |
| Chân 58 | I/O — General purpose I/O - Bank 1 |
| Chân 59 | I/O — General purpose I/O - Bank 1 |
| Chân 60 | I/O — General purpose I/O - Bank 1 |
| Chân 61 | VCC — Core supply voltage (3.3V) |
| Chân 62 | I/O — General purpose I/O - Bank 2 |
| Chân 63 | I/O — General purpose I/O - Bank 2 |
| Chân 64 | I/O — General purpose I/O - Bank 2 |
| Chân 65 | I/O — General purpose I/O - Bank 2 |
| Chân 66 | I/O — General purpose I/O - Bank 2 |
| Chân 67 | I/O — General purpose I/O - Bank 2 |
| Chân 68 | I/O — General purpose I/O - Bank 2 |
| Chân 69 | I/O — General purpose I/O - Bank 2 |
| Chân 70 | GND — Ground |
| Chân 71 | I/O — General purpose I/O - Bank 2 |
| Chân 72 | I/O — General purpose I/O - Bank 2 |
| Chân 73 | I/O — General purpose I/O - Bank 2 |
| Chân 74 | I/O — General purpose I/O - Bank 2 |
| Chân 75 | I/O — General purpose I/O - Bank 2 |
| Chân 76 | I/O — General purpose I/O - Bank 2 |
| Chân 77 | I/O — General purpose I/O - Bank 2 |
| Chân 78 | I/O — General purpose I/O - Bank 2 |
| Chân 79 | VCCIO2 — Bank 2 I/O supply voltage (1.8V/2.5V/3.3V) |
| Chân 80 | TDI — JTAG Test Data In (IEEE 1149.1) |
| Chân 81 | TMS — JTAG Test Mode Select (IEEE 1149.1) |
| Chân 82 | TCK — JTAG Test Clock (IEEE 1149.1) |
| Chân 83 | TDO — JTAG Test Data Out (IEEE 1149.1) |
| Chân 84 | GND — Ground |
| Chân 85 | I/O — General purpose I/O - Bank 3 |
| Chân 86 | I/O — General purpose I/O - Bank 3 |
| Chân 87 | I/O — General purpose I/O - Bank 3 |
| Chân 88 | I/O — General purpose I/O - Bank 3 |
| Chân 89 | I/O — General purpose I/O - Bank 3 |
| Chân 90 | I/O — General purpose I/O - Bank 3 |
| Chân 91 | I/O — General purpose I/O - Bank 3 |
| Chân 92 | I/O — General purpose I/O - Bank 3 |
| Chân 93 | VCCIO3 — Bank 3 I/O supply voltage (1.8V/2.5V/3.3V) |
| Chân 94 | CLK0 — Global clock 0 input (programmable polarity) |
| Chân 95 | CLK1 — Global clock 1 input (programmable polarity) |
| Chân 96 | CLK2 — Global clock 2 input (programmable polarity) |
| Chân 97 | CLK3 — Global clock 3 input (programmable polarity) |
| Chân 98 | I/O — General purpose I/O - Bank 3 |
| Chân 99 | I/O — General purpose I/O - Bank 3 |
| Chân 100 | I/O — General purpose I/O - Bank 3 |
Ứng dụng tiêu biểu
LC4128V-75TN100C phù hợp cho 6 Áp dụngs: Bus Interface Bridging, Industrial Control & PLC Logic, Power Supply Sequencing & Supervisor, ASIC/SoC Feature Expansion, Telecom Line-Card Glue Logic, Test & Measurement Front-End.
Bus Interface Bridging
The LC4128V-75TN100C excels at bus-bridge glue logic between legacy 3.3V peripherals and modern 1.8V or 2.5V microcontrollers because of its 7.5 ns tPD, 400 MHz fMAX, and multi-voltage I/O banks (1.8V/2.5V/3.3V). With 64 user I/O and 128 macrocells, it can decode full 24-bit addresses, latch control signals, and translate handshaking in a single device - replacing 4-6 discrete PAL/GAL chips. Designers place the CPLD between the MCU and the legacy bus with pull-ups on open-drain lines and rely on its deterministic timing to meet bus-cycle budgets without wait-state juggling.
Được đề xuất
Industrial Control & PLC Logic
The LC4128V-75TN100C suits industrial control boards and small PLCs because its non-volatile E2CMOS configuration starts within microseconds of power-on - eliminating FPGA-style boot delays that complicate deterministic control loops. The 7.5 ns propagation delay and 4 global clocks with programmable polarity make it ideal for PWM steering, encoder quadrature decoding, and stepper pulse generation. With 64 I/O pins and bank-by-bank voltage support, it interfaces directly to 24V opto-isolated field-side signals through current-limited buffers and to 3.3V MCU logic without level shifters.
Được đề xuất
Power Supply Sequencing & Supervisor
Non-volatile instant-on behavior and 7.5 ns deterministic delays make the LC4128V-75TN100C an ideal power-sequencer for multi-rail systems such as ATX, telecom line cards, and FPGA-based boards. With 128 macrocells, the CPLD can monitor PG (power-good) flags from 8-12 DC-DC converters, generate precise enable/disable timing, and assert system reset only after the last rail is stable - eliminating common power-up glitches. The 3.3V core and 1.8V/2.5V/3.3V I/O banks directly interface to most modern PMBus devices, removing extra level-shifters from the BOM.
Được đề xuất
ASIC/SoC Feature Expansion
When a host ASIC or SoC runs out of GPIO for late-stage feature additions, the LC4128V-75TN100C adds up to 64 user I/O via a simple SPI/I2C-attached slave interface, freeing the SoC from software bit-banging overhead. Its 400 MHz fMAX lets it handle SD-card, fast SPI flash, or parallel LCD interfaces that would otherwise burden the host CPU. The JTAG-based in-system programmability enables field upgrades without reworking the PCB - critical for industrial and telecom gear with long lifecycles.
Được đề xuất
Telecom Line-Card Glue Logic
The LC4128V-75TN100C is widely deployed in telecom line cards as address-decoder, LED-driver controller, and alarm-monitor glue between framer ASICs, TDM switches, and host CPUs. Its 1.8V/2.5V/3.3V I/O banks interface directly to modern DSPs and to legacy 3.3V framers without level translators, while the 7.5 ns tPD ensures backplane timing margins are met at 77 MHz TDM bus rates. The non-volatile configuration survives brown-out events, making it more robust than SRAM-based FPGA glue in remote-terminal installations.
Được đề xuất
Test & Measurement Front-End
Test-equipment manufacturers leverage the LC4128V-75TN100C's deterministic 7.5 ns tPD and 64 user I/O to build reconfigurable signal-routing matrices, range-switching decoders, and trigger logic in oscilloscopes and data loggers. With 4 global clocks and programmable polarity, the CPLD can route external triggers to multiple time bases or generate precisely-timed relay-driver pulses for safety interlocks. The JTAG ISP capability lets manufacturers ship firmware-upgradeable front-ends that customers can reconfigure in the field for new measurement modes.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LC4128V-75TN100C — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | LC4128V-75T100C | LC4128V-75TN100I | LC4128V-75TN100-101 | LC4128V-10TN100C | LC4128V-5TN100C | LC4128B-75TN100C |
|---|---|---|---|---|---|---|---|
| Brand | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor | Lattice Semiconductor |
| Package | TQFP-100 (TN) | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same |
| Family | ispMACH 4000V | ispMACH 4000V | ispMACH 4000V | ispMACH 4000V | ispMACH 4000V | ispMACH 4000V | ispMACH 4000B |
| Macro Cells | 128 | 128 | 128 | 128 | 128 | 128 | 128 |
| Propagation Delay (tPD) | 7.5 ns | 7.5 ns | 7.5 ns | 7.5 ns | 10 ns | 5 ns | 7.5 ns |
| Operating Temperature | 0C to +90C (Commercial) | 0C to +90C (Commercial) | -40C to +85C (Industrial) | 0C to +90C (Commercial) | 0C to +90C (Commercial) | 0C to +90C (Commercial) | 0C to +90C (Commercial) |
| I/O Voltage Support | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 1.8V / 2.5V / 3.3V | 2.5V / 3.3V only |
Bảo phân biệt quan trọng
- Lead-free terminal finish designated in ordering code (vsLC4128V-75T100C)
- Extended commercial temperature range 0C to +90C (vsLC4128V-75TN100I)
- Wider 1.8V I/O support than 4000B predecessor (vsLC4128B-75TN100C)
Ghi chú thiết kế
Route at least one solid GND and one VCC plane directly under the TQFP-100 land pattern; place 0.1uF X7R ceramic decoupling caps within 100 mil of every VCC and VCCIO pin (4 caps total minimum on a 100-pin package). Long VCC traces introduce switching noise that couples into the I/O banks and degrades the 400 MHz fMAX. Estimated: 4 decoupling caps plus one 10uF bulk cap per rail will keep power-rail impedance below 50 mOhm through 100 MHz per standard capacitor-impedance guidelines.
Do not leave unused I/O pins floating. Configure unused pins as outputs driving low or as inputs with internal pull-ups enabled in the Lattice ispLEVER design tool. Floating inputs on E2CMOS CPLDs can draw several hundred microamps each through the input buffer, potentially pulling Icc above the 50 mA commercial-spec limit and triggering thermal shutdown at high ambient temperatures. Unused JTAG pins (TCK/TMS/TDI/TDO) should be tied to known logic states if not used for boundary scan.
Match the bank VCCIO supply to the highest-voltage I/O standard used in that bank. Mixing 1.8V and 3.3V signals in the same bank is undefined behavior and can permanently damage the output drivers. For designs that must bridge 3.3V and 1.8V, use a dedicated level-translator IC such as the TXS0108E between the CPLD and the 1.8V device. The ispMACH 4000V supports 1.8V/2.5V/3.3V mixed-voltage designs only if each bank is independently powered.
Estimated: at 400 MHz toggle rate on all 64 outputs simultaneously loaded with 10 pF each, the LC4128V-75TN100C dissipates approximately 0.5-0.8 W. The TQFP-100 package has theta_JA of approximately 50 C/W on a 4-layer JEDEC test board, resulting in a junction temperature rise of 25-40 C above ambient. In enclosed industrial enclosures at 60 C ambient, derate fMAX by 10-15% or add a copper thermal pad under the exposed die flag.
Thông tin tuân thủ
RoHS-compliant per Lattice product page. The "N" suffix in the ordering code confirms lead-free terminal finish. AEC-Q100 not qualified - this is a commercial-grade part; the LC4128V-75TN100I is the industrial temperature grade but still not AEC-Q100 automotive qualified.
