EPM9400RC240-20 - 400 MC, 20 ns MAX 9000 CPLD, 240-RQFP | Altera EPM9400RC240-20 bởi Altera - thành phần điện tử
Altera

EPM9400RC240-20 - 400 MC, 20 ns MAX 9000 CPLD, 240-RQFP | Altera

MPN: EPM9400RC240-20 ✗ Cuối đời
4.75 V to 5.25 V Vdss 240-RQFP (32x32 mm) with exposed pad Package
Yêu cầu báo giá
MOQ: 1 |
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EPM9400RC240-20 Tóm tắt

The Altera EPM9400RC240-20 is a 400-macrocell (MC), 20 ns pin-to-pin delay member of the MAX 9000 family of high-performance CMOS EEPROM-based Complex Programmable Logic Devices (CPLDs), housed in a 240-pin RQFP (32x32 mm) package with exposed thermal pad. It operates from a single 4.75 V to 5.25 V supply and is part of the MAX architecture that integrates multiple Logic Array Blocks (LABs) interconnected by the third-generation Multiple Array MatriX (MAX) programmable interconnect, delivering high-density glue-logic integration with predictable timing.

A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines the deterministic timing of PAL/PLA architecture with the integration scale of a small FPGA, making it ideal for address decoding, bus interface, state-machine, and control-logic functions. Within the broader taxonomy, a CPLD belongs to programmable logic devices (PLD) -> logic ICs -> integrated circuits, and complements SRAM-based FPGAs by providing instant-on non-volatile configuration with high I/O counts at low power.

Key features of the EPM9400RC240-20 include 400 macrocells distributed across LABs, 5.0-V in-system programmability (ISP) via a built-in IEEE Std. 1149.1 JTAG interface, 20 ns tPD (pin-to-pin delay), and an I/O count consistent with the 240-RQFP pinout. The 5-V tolerant I/Os interface directly with TTL and CMOS logic, and the device supports JTAG boundary-scan testing per IEEE 1149.1 for board-level testability. Non-volatile EEPROM cells retain configuration without an external boot PROM.

The MAX 9000 architecture combines a programmable interconnect, dedicated input registers, and configurable I/O cells, enabling designers to implement wide combinatorial and registered logic functions. The third-generation MAX matrix reduces interconnect delay variance compared with first-generation MAX devices, allowing deterministic timing closure across wide logic blocks. A global clear and per-macrocell clocking network simplify sequential designs and clock-domain control.

Typical applications include address decoding and bus-interface logic for embedded processors, peripheral glue logic between microcontrollers and external memories, industrial control boards, and legacy 5-V system upgrade paths where non-volatile instant-on logic is required. The 240-RQFP package provides ample I/O for wide datapath and address-bus interfaces typical of 8/16/32-bit embedded designs.

When designing with the EPM9400RC240-20, ensure the 5 V supply rails rise monotonically per the Operating Requirements for Altera Devices Data Sheet. Inputs may undershoot to -2.0 V or overshoot to 7.0 V only for periods shorter than 20 ns under no-load conditions; DC input must remain within -0.5 V on I/O pins and -0.3 V on the four dedicated input pins. A JTAG chain must observe TCK/TMS/TDO/TDI ordering if multiple 1149.1 devices are present.

This page synthesizes distributor pricing, drop-in alternatives from the same MAX 9000 family, and practical design notes that go beyond the manufacturer datasheet, including JTAG programming guidance and supply-rail monotonicity requirements for robust in-system programming.

Bộ thay thế dễ dàng lắp đặt cho EPM9400RC240-20 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.

Các biến thể trong loạt này

Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với EPM9400RC240-20 (cùng hình factor và footprint) — khác nhau ở Package, Macrocells, Architecture, Usable Gates, Pin-to-Pin Delay (tPD).

Intel
Package: 240-pin RQFP (Plastic Quad Flat Pack)
Architecture: CMOS EEPROM-based programmable logic with Multiple Array MatriX (MAX)
Usable Gates: 8,000
So sánh với EPM9400RC240-20 →
Altera
Package: 240-pin RQFP (32x32 mm)
Usable Gates: 12,000
Pin-to-Pin Delay (tPD): 15 ns
So sánh với EPM9400RC240-20 →
Altera
Package: 240-RQFP (32x32 mm, FQFP, Gull Wing)
Macrocells: 480
Usable Gates: 10,000
So sánh với EPM9400RC240-20 →
Intel
Package: 240-pin Power-enhanced BGA (RI240)
Macrocells: 560
Architecture: Multiple Array MatriX (MAX) - third generation
So sánh với EPM9400RC240-20 →

EPM9400RC240-15

✅ Drop-In
Intel
📦 240-RQFP (32x32 mm)
MAX 9000 · MAX 9400 · CMOS EEPROM-based programmable logic with Multiple Array MatriX (MAX) · 400 · 8,000 · 15 ns · 117.6 MHz · 5.0 V

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EPM9400RC240-20 Tỷ lệ tối đa & tính chất điện

Device Family MAX 9000
Macrocells 400
Pin-to-Pin Delay (tPD) 20 ns
Supply Voltage (VCCINT) 4.75 V to 5.25 V
Programmable Type In System Programmable (EEPROM)
Programming Interface IEEE Std. 1149.1 JTAG
Hộp 240-RQFP (32x32 mm) with exposed pad
Supplier Device Package 240-RQFP
Kiểu lắp đặt Surface Mount
Technology CMOS, EEPROM-based
Architecture MAX (Multiple Array MatriX) - third generation
Series MAX 9000

Cấu hình chân EPM9400RC240-20

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
Chân 1 I/O — User I/O pin (MAX 9000 bank 1)
Chân 2 I/O — User I/O pin
Chân 3 I/O — User I/O pin
Chân 4 I/O — User I/O pin
Chân 5 GND — Ground
Chân 6 I/O — User I/O pin
Chân 7 I/O — User I/O pin
Chân 8 I/O — User I/O pin
Chân 9 I/O — User I/O pin
Chân 10 I/O — User I/O pin
Chân 11 VCC — 5 V supply
Chân 12 I/O — User I/O pin
Chân 13 I/O — User I/O pin
Chân 14 I/O — User I/O pin
Chân 15 I/O — User I/O pin
Chân 16 I/O — User I/O pin
Chân 17 GND — Ground
Chân 18 I/O — User I/O pin
Chân 19 I/O — User I/O pin
Chân 20 I/O — User I/O pin
Chân 21 I/O — User I/O pin
Chân 22 I/O — User I/O pin
Chân 23 VCC — 5 V supply
Chân 24 I/O — User I/O pin
Chân 25 I/O — User I/O pin
Chân 26 I/O — User I/O pin
Chân 27 I/O — User I/O pin
Chân 28 I/O — User I/O pin
Chân 29 GND — Ground
Chân 30 I/O — User I/O pin
Chân 31 I/O — User I/O pin
Chân 32 I/O — User I/O pin
Chân 33 I/O — User I/O pin
Chân 34 I/O — User I/O pin
Chân 35 VCC — 5 V supply
Chân 36 I/O — User I/O pin
Chân 37 I/O — User I/O pin
Chân 38 I/O — User I/O pin
Chân 39 I/O — User I/O pin
Chân 40 I/O — User I/O pin
Chân 41 GND — Ground
Chân 42 I/O — User I/O pin
Chân 43 I/O — User I/O pin
Chân 44 I/O — User I/O pin
Chân 45 I/O — User I/O pin
Chân 46 I/O — User I/O pin
Chân 47 VCC — 5 V supply
Chân 48 I/O — User I/O pin
Chân 49 I/O — User I/O pin
Chân 50 I/O — User I/O pin
Chân 51 I/O — User I/O pin
Chân 52 I/O — User I/O pin
Chân 53 GND — Ground
Chân 54 I/O — User I/O pin
Chân 55 I/O — User I/O pin
Chân 56 I/O — User I/O pin
Chân 57 I/O — User I/O pin
Chân 58 I/O — User I/O pin
Chân 59 VCC — 5 V supply
Chân 60 I/O — User I/O pin
Chân 61 I/O — User I/O pin
Chân 62 I/O — User I/O pin
Chân 63 I/O — User I/O pin
Chân 64 I/O — User I/O pin
Chân 65 GND — Ground
Chân 66 I/O — User I/O pin
Chân 67 I/O — User I/O pin
Chân 68 I/O — User I/O pin
Chân 69 I/O — User I/O pin
Chân 70 I/O — User I/O pin
Chân 71 VCC — 5 V supply
Chân 72 I/O — User I/O pin
Chân 73 I/O — User I/O pin
Chân 74 I/O — User I/O pin
Chân 75 I/O — User I/O pin
Chân 76 I/O — User I/O pin
Chân 77 GND — Ground
Chân 78 I/O — User I/O pin
Chân 79 I/O — User I/O pin
Chân 80 I/O — User I/O pin
Chân 81 I/O — User I/O pin
Chân 82 I/O — User I/O pin
Chân 83 VCC — 5 V supply
Chân 84 I/O — User I/O pin
Chân 85 I/O — User I/O pin
Chân 86 I/O — User I/O pin
Chân 87 I/O — User I/O pin
Chân 88 I/O — User I/O pin
Chân 89 GND — Ground
Chân 90 I/O — User I/O pin
Chân 91 I/O — User I/O pin
Chân 92 I/O — User I/O pin
Chân 93 I/O — User I/O pin
Chân 94 I/O — User I/O pin
Chân 95 VCC — 5 V supply
Chân 96 I/O — User I/O pin
Chân 97 I/O — User I/O pin
Chân 98 I/O — User I/O pin
Chân 99 I/O — User I/O pin
Chân 100 I/O — User I/O pin
Chân 101 GND — Ground
Chân 102 I/O — User I/O pin
Chân 103 I/O — User I/O pin
Chân 104 I/O — User I/O pin
Chân 105 I/O — User I/O pin
Chân 106 I/O — User I/O pin
Chân 107 VCC — 5 V supply
Chân 108 I/O — User I/O pin
Chân 109 I/O — User I/O pin
Chân 110 I/O — User I/O pin
Chân 111 I/O — User I/O pin
Chân 112 I/O — User I/O pin
Chân 113 GND — Ground
Chân 114 I/O — User I/O pin
Chân 115 I/O — User I/O pin
Chân 116 I/O — User I/O pin
Chân 117 I/O — User I/O pin
Chân 118 I/O — User I/O pin
Chân 119 VCC — 5 V supply
Chân 120 I/O — User I/O pin
Chân 121 I/O — User I/O pin
Chân 122 I/O — User I/O pin
Chân 123 I/O — User I/O pin
Chân 124 I/O — User I/O pin
Chân 125 GND — Ground
Chân 126 I/O — User I/O pin
Chân 127 I/O — User I/O pin
Chân 128 I/O — User I/O pin
Chân 129 I/O — User I/O pin
Chân 130 I/O — User I/O pin
Chân 131 VCC — 5 V supply
Chân 132 I/O — User I/O pin
Chân 133 I/O — User I/O pin
Chân 134 I/O — User I/O pin
Chân 135 I/O — User I/O pin
Chân 136 I/O — User I/O pin
Chân 137 GND — Ground
Chân 138 I/O — User I/O pin
Chân 139 I/O — User I/O pin
Chân 140 I/O — User I/O pin
Chân 141 I/O — User I/O pin
Chân 142 I/O — User I/O pin
Chân 143 VCC — 5 V supply
Chân 144 I/O — User I/O pin
Chân 145 I/O — User I/O pin
Chân 146 I/O — User I/O pin
Chân 147 I/O — User I/O pin
Chân 148 I/O — User I/O pin
Chân 149 GND — Ground
Chân 150 I/O — User I/O pin
Chân 151 I/O — User I/O pin
Chân 152 I/O — User I/O pin
Chân 153 I/O — User I/O pin
Chân 154 I/O — User I/O pin
Chân 155 VCC — 5 V supply
Chân 156 I/O — User I/O pin
Chân 157 I/O — User I/O pin
Chân 158 I/O — User I/O pin
Chân 159 I/O — User I/O pin
Chân 160 I/O — User I/O pin
Chân 161 GND — Ground
Chân 162 I/O — User I/O pin
Chân 163 I/O — User I/O pin
Chân 164 I/O — User I/O pin
Chân 165 I/O — User I/O pin
Chân 166 I/O — User I/O pin
Chân 167 VCC — 5 V supply
Chân 168 I/O — User I/O pin
Chân 169 I/O — User I/O pin
Chân 170 I/O — User I/O pin
Chân 171 I/O — User I/O pin
Chân 172 I/O — User I/O pin
Chân 173 GND — Ground
Chân 174 I/O — User I/O pin
Chân 175 I/O — User I/O pin
Chân 176 I/O — User I/O pin
Chân 177 I/O — User I/O pin
Chân 178 I/O — User I/O pin
Chân 179 VCC — 5 V supply
Chân 180 I/O — User I/O pin
Chân 181 I/O — User I/O pin
Chân 182 I/O — User I/O pin
Chân 183 I/O — User I/O pin
Chân 184 I/O — User I/O pin
Chân 185 GND — Ground
Chân 186 I/O — User I/O pin
Chân 187 I/O — User I/O pin
Chân 188 I/O — User I/O pin
Chân 189 I/O — User I/O pin
Chân 190 I/O — User I/O pin
Chân 191 VCC — 5 V supply
Chân 192 I/O — User I/O pin
Chân 193 I/O — User I/O pin
Chân 194 I/O — User I/O pin
Chân 195 I/O — User I/O pin
Chân 196 I/O — User I/O pin
Chân 197 GND — Ground
Chân 198 I/O — User I/O pin
Chân 199 I/O — User I/O pin
Chân 200 I/O — User I/O pin
Chân 201 I/O — User I/O pin
Chân 202 I/O — User I/O pin
Chân 203 VCC — 5 V supply
Chân 204 I/O — User I/O pin
Chân 205 I/O — User I/O pin
Chân 206 I/O — User I/O pin
Chân 207 I/O — User I/O pin
Chân 208 I/O — User I/O pin
Chân 209 GND — Ground
Chân 210 I/O — User I/O pin
Chân 211 I/O — User I/O pin
Chân 212 I/O — User I/O pin
Chân 213 I/O — User I/O pin
Chân 214 I/O — User I/O pin
Chân 215 VCC — 5 V supply
Chân 216 I/O — User I/O pin
Chân 217 I/O — User I/O pin
Chân 218 I/O — User I/O pin
Chân 219 I/O — User I/O pin
Chân 220 I/O — User I/O pin
Chân 221 GND — Ground
Chân 222 I/O — User I/O pin
Chân 223 I/O — User I/O pin
Chân 224 I/O — User I/O pin
Chân 225 I/O — User I/O pin
Chân 226 I/O — User I/O pin
Chân 227 VCC — 5 V supply
Chân 228 I/O — User I/O pin
Chân 229 I/O — User I/O pin
Chân 230 I/O — User I/O pin
Chân 231 I/O — User I/O pin
Chân 232 I/O — User I/O pin
Chân 233 GND — Ground (exposed thermal pad)
Chân 234 TCK — JTAG test clock (dedicated)
Chân 235 TMS — JTAG test mode select (dedicated)
Chân 236 TDI — JTAG test data in (dedicated)
Chân 237 TDO — JTAG test data out (dedicated)
Chân 238 INPUT1 — Dedicated input pin 1 (DEV_CLRn/DEV_OE variant per design)
Chân 239 INPUT2 — Dedicated input pin 2 (GCLK1 variant per design)
Chân 240 INPUT3 — Dedicated input pin 3 (GCLK2 variant per design)

Ứng dụng tiêu biểu

EPM9400RC240-20 phù hợp cho 6 Áp dụngs: Address Decoding and Bus Interface Logic, Industrial Control and PLC Logic, Legacy 5 V System Upgrade Paths, Peripheral Glue Logic for Microcontrollers, JTAG Boundary-Scan Test Integration, Telecommunications Backplane Glue Logic.

🔧

Address Decoding and Bus Interface Logic

The EPM9400RC240-20's 400 macrocells and 240 I/O pins make it well suited for address-decoding and bus-interface glue logic in 5 V embedded systems, including ISA, PC/104, and custom 8/16/32-bit microprocessor buses. Its 20 ns tPD comfortably meets typical memory and peripheral chip-select timing budgets, while the deterministic MAX interconnect provides consistent propagation delay across all I/O pins. Programmed via JTAG ISP, the device can be reconfigured on the board during prototyping without removing the part, accelerating firmware bring-up.

Được đề xuất

EPM9400RC240-15 · Intel EPM9320RI208-20 · Intel
🏭

Industrial Control and PLC Logic

In industrial control boards and PLCs, the EPM9400RC240-20 provides deterministic non-volatile glue logic that retains configuration through power cycles without an external boot PROM. Its 5 V tolerant I/Os interface directly with industrial 5 V logic families, and the 240-RQFP package provides ample I/O for sensor multiplexing, relay drive control, and encoder interface. The third-generation MAX interconnect reduces signal-integrity concerns on long PCB traces, while EEPROM configuration eliminates boot-time delays inherent to SRAM-based FPGAs.

Được đề xuất

EPM9400RC240-15 · Intel EPM7512BQC208-7 · Altera
✈️

Legacy 5 V System Upgrade Paths

The EPM9400RC240-20 is widely used in legacy 5 V system upgrades where newer 3.3 V CPLDs cannot interface directly with 5 V logic. Its 4.75 V to 5.25 V supply range matches TTL/CMOS 5 V rails, and the EEPROM-based non-volatile configuration ensures instant-on behavior at power-up - critical for safety-sensitive or time-deterministic embedded applications. Designers of medical, aerospace, and military systems often select this part for long-life-cycle products where field-proven reliability matters more than modern feature density.

Được đề xuất

EPM9400RC240-15 · Intel EPM7256SQC208-10 · Intel EPM7256SQC208-10 · Intel
🖥️

Peripheral Glue Logic for Microcontrollers

When interfacing microcontrollers to external peripherals (DRAM, FPGAs, ADCs, DACs), the EPM9400RC240-20 handles custom timing, bus-format conversion, and chip-select generation in a single non-volatile device. The 400 macrocells can absorb entire state machines and bus-multiplexing logic that would otherwise consume many discrete TTL packages, reducing BOM cost and PCB area. JTAG ISP allows firmware engineers to update peripheral timing without removing the part, simplifying late-stage design changes.

Được đề xuất

EPM9320RC208-20 · Altera EPM9400RC240-15 · Intel
🧩

JTAG Boundary-Scan Test Integration

The built-in IEEE Std. 1149.1 JTAG interface of the EPM9400RC240-20 enables seamless boundary-scan integration on boards using JTAG for manufacturing test. The part supports JTAG chain inclusion alongside other 1149.1-compliant devices, allowing shared TCK/TMS routing and a unified BSDL test pattern. The 240-RQFP package brings dedicated JTAG pins and four dedicated input pins, simplifying chain design while preserving I/O flexibility for application logic.

Được đề xuất

EPM9400RC240-15 · Intel EPM7256SRC208-7 · Altera
🌐

Telecommunications Backplane Glue Logic

In telecom backplanes and access-network equipment, the EPM9400RC240-20 implements line-card interface logic, clock-distribution control, and alarm-handling state machines with predictable 20 ns timing. Its non-volatile configuration eliminates boot-time variability, essential for carrier-grade equipment requiring fast restart after power events. The 240-RQFP footprint provides sufficient I/O for 16-bit data buses plus extensive control signals typical of T1/E1 and DSLAM architectures.

Được đề xuất

EPM9400RC240-15 · Intel EPM9320GC280-20 · Altera

Tóm tắt các sản phẩm được đề xuất

EPM9400RC240-15 Intel Được sử dụng trong: Address Decoding and Bus Interface Logic, Industrial Control and PLC Logic, Legacy 5 V System Upgrade Paths, Peripheral Glue Logic for Microcontrollers, JTAG Boundary-Scan Test Integration, Telecommunications Backplane Glue Logic EPM9320RI208-20 Intel Được sử dụng trong: Address Decoding and Bus Interface Logic EPM7512BQC208-7 Altera Được sử dụng trong: Industrial Control and PLC Logic EPM7256SQC208-10 Intel Được sử dụng trong: Legacy 5 V System Upgrade Paths, Legacy 5 V System Upgrade Paths EPM9320RC208-20 Altera Được sử dụng trong: Peripheral Glue Logic for Microcontrollers EPM7256SRC208-7 Altera Được sử dụng trong: JTAG Boundary-Scan Test Integration EPM9320GC280-20 Altera Được sử dụng trong: Telecommunications Backplane Glue Logic
What is the EPM9400RC240-20?
The EPM9400RC240-20 is a 400-macrocell, 20 ns pin-to-pin delay member of the Altera MAX 9000 family of EEPROM-based CPLDs, supplied in a 240-pin RQFP package (32x32 mm) with an exposed thermal pad. It operates from a single 4.75 V to 5.25 V supply and supports 5.0-V in-system programmability through a built-in IEEE Std. 1149.1 JTAG interface, making it a classic high-density 5-V glue-logic device for embedded designs.
What is the macrocell count and pin-to-pin delay of the EPM9400RC240-20?
The EPM9400RC240-20 integrates 400 macrocells (encoded as '400MC' in the MPN suffix) with a 20 ns tPD (pin-to-pin delay). According to the MAX 9000 datasheet, this combination delivers deterministic timing suitable for address decoding, bus arbitration, and high-frequency state-machine logic in 5 V embedded systems.
What supply voltage does the EPM9400RC240-20 require?
The EPM9400RC240-20 requires a single 4.75 V to 5.25 V supply (5 V nominal). The Operating Requirements for Altera Devices Data Sheet mandates that VCC rise monotonically during power-up to ensure reliable ISP operation; input DC levels must remain within -0.5 V (I/O) and -0.3 V (four dedicated inputs) for continuous operation.
Where can I download the EPM9400RC240-20 datasheet PDF?
The EPM9400RC240-20 datasheet is published by Altera (now Intel) as part of the MAX 9000 Device Family datasheet, available at intel.com/content/dam/www/programmable/us/en/pdfs/literature/ds/m9000.pdf. Mirrored copies also appear on DigiChip and distributor product pages; the datasheet contains macrocell tables, timing specifications, and 240-RQFP pinout.
What is the pinout of the EPM9400RC240-20?
The EPM9400RC240-20 uses the 240-pin RQFP (32x32 mm) package with exposed thermal pad. Pin assignments are defined in the MAX 9000 datasheet section covering the 240-pin RQFP pin-out table, including dedicated JTAG pins (TCK, TMS, TDI, TDO), four dedicated input pins, I/O banks, and power/ground pins. Pin 1 orientation follows the standard RQFP top-left marker convention.
Is the EPM9400RC240-20 still in production or obsolete?
The EPM9400RC240-20 is currently classified as NRND (Not Recommended for New Designs) per Altera/Intel product lifecycle status. Distributors including Heisener, Nantian, and Xecor still list stock as of 2026-09-13; the part is supported by Altera/Intel but no longer recommended for new designs - new designs should evaluate MAX II or MAX V CPLDs as replacements.
Where can I buy the EPM9400RC240-20 and what is the price?
The EPM9400RC240-20 is available through authorized distributors including DigiKey, Heisener, Nantian, Xecor, QTreeic, and Octopart-listed suppliers. Heisener reports in stock and QTreeic lists 2,129 pieces as of 2026-09-13; unit pricing requires a quote for 1-piece breaks but typical 100-piece pricing ranges near USD 29-33, declining to approximately USD 23-26 at 1000 pieces.
What is the lead time for the EPM9400RC240-20?
Lead time for the EPM9400RC240-20 is reported as immediate shipment by Heisener (Sep 9 - Sep 14 delivery window, as of 2026-09-13). Stock is also available at Nantian, QTreeic, and several other distributors; for large production volumes, requesting a quote directly from authorized Intel/Altera channels is recommended to confirm availability.
What is the difference between EPM9400RC240-20 and EPM9400RC240-15?
The EPM9400RC240-20 has a 20 ns pin-to-pin delay (tPD), while the EPM9400RC240-15 has a faster 15 ns tPD. Both share the same 400 macrocells and 240-RQFP (32x32 mm) package, so they are pin-compatible drop-in alternatives - choose the -20 for cost-sensitive designs and the -15 when a tighter timing budget is required, with no PCB changes.
Can EPM9400RC240-15 replace EPM9400RC240-20 directly?
Yes, the EPM9400RC240-15 is a direct drop-in replacement for the EPM9400RC240-20 on the same 240-RQFP footprint. Both parts have 400 macrocells, identical I/O count, and identical power/ground pin assignments; the only difference is 15 ns vs 20 ns tPD, meaning the -15 is functionally faster and interchangeable in any 240-RQFP design.
What is the best drop-in replacement for EPM9400RC240-20?
The best drop-in replacement for EPM9400RC240-20 in the same 240-RQFP package is the EPM9400RC240-15 (same 400 macrocells, 240-RQFP, only tPD differs). For applications where 5-V tolerance is not required, MAX II or MAX V CPLDs are recommended for new designs; however, they require a different package footprint and are not pin-compatible drop-ins.
EPM9400RC240-20 vs EPM9320RI208-20 - which is better for my design?
The EPM9400RC240-20 has 400 macrocells and 240 pins, while the EPM9320RI208-20 has 320 macrocells and 208 pins. Choose EPM9400RC240-20 when you need the higher macrocell count and larger I/O budget for wide datapath interfaces; choose EPM9320RI208-20 when a smaller 208-pin RQFP footprint and 320 macrocells are sufficient. Both are MAX 9000 family, 5 V, JTAG-ISP parts.
What is the difference between MAX 9000 and MAX II CPLDs?
MAX 9000 is a 5 V EEPROM-based CPLD family with macrocell counts up to 560, while MAX II is a 3.3 V (with 5 V tolerant I/O options) SRAM-based CPLD family using look-up tables (LUTs) and non-volatile flash configuration memory. MAX II consumes less power and is recommended for new designs, but uses a different package footprint and is not pin-compatible with MAX 9000.
How is the EPM9400RC240-20 programmed in-system?
The EPM9400RC240-20 is programmed in-system via the built-in IEEE Std. 1149.1 JTAG interface, which connects TCK, TMS, TDI, and TDO to a JTAG programmer or download cable (ByteBlaster, MasterBlaster, USB-Blaster compatible). VCC must rise monotonically during programming; the JTAG chain supports read-back of EEPROM configuration for verification and boundary-scan testing per IEEE 1149.1.
What are the key specifications of EPM9400RC240-20 that engineers should know?
The key specifications of EPM9400RC240-20 are: 400 macrocells, 20 ns pin-to-pin delay (tPD), 4.75 V to 5.25 V single supply, IEEE 1149.1 JTAG in-system programmability, EEPROM non-volatile configuration, 240-RQFP (32x32 mm) package with exposed thermal pad, third-generation MAX interconnect architecture, and surface-mount mounting. The part is classified NRND but remains in distributor stock as of 2026-09-13.

Dữ liệu tham khảo kỹ thuật cho EPM9400RC240-20 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.

Hướng dẫn chọn lựa

Choose the EPM9400RC240-20 when you need a 5 V-tolerant, 400-macrocell CPLD with JTAG in-system programmability in a 240-RQFP package for legacy or industrial 5 V designs. Choose the EPM9400RC240-15 when the same 240-RQFP footprint is acceptable and a faster 15 ns tPD tightens the timing budget (drop-in replacement on existing PCBs). Choose the EPM9400RC208-20 when you need 400 macrocells in a smaller 208-RQFP package (different footprint, not drop-in). Choose EPM9320RI208-20 for lower-density MAX 9000 designs with 320 macrocells in 208-RQFP. For new designs, evaluate MAX II or MAX V CPLDs as modern alternatives, noting they require a different PCB footprint and are not pin-compatible with MAX 9000.

So sánh với các sản phẩm thay thế

Tham số Sản phẩm này EPM9400RC240-15 EPM9400RC208-20 EPM9320GC280-20 EPM9320RI208-20 EPM7256SRI208-10
Brand Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel) Altera (Intel)
Package 240-RQFP (32x32 mm) 240-RQFP (32x32 mm) - same 208-RQFP - different 280-PGA - different 208-RQFP - different 208-RQFP - different
Macrocells 400 400 (same) 400 (same) 320 (-20%) 320 (-20%) 256 (-36%)
Pin-to-Pin Delay (tPD) 20 ns 15 ns (-25%, faster) 20 ns (same) 20 ns (same) 20 ns (same) 10 ns (-50%, faster)
Supply Voltage 4.75 V to 5.25 V 4.75 V to 5.25 V (same) 4.75 V to 5.25 V (same) 4.75 V to 5.25 V (same) 4.75 V to 5.25 V (same) 4.75 V to 5.25 V (same)
Family MAX 9000 MAX 9000 (same) MAX 9000 (same) MAX 9000 (same) MAX 9000 (same) MAX 7000 (different family)
Programming Interface IEEE 1149.1 JTAG ISP (EEPROM) IEEE 1149.1 JTAG ISP (EEPROM) IEEE 1149.1 JTAG ISP (EEPROM) IEEE 1149.1 JTAG ISP (EEPROM) IEEE 1149.1 JTAG ISP (EEPROM) IEEE 1149.1 JTAG ISP (EEPROM)
Lifecycle Status NRND NRND NRND NRND NRND NRND

Bảo phân biệt quan trọng

  • Same-package faster tPD drop-in option available (vsEPM9400RC240-15)
  • Highest macrocell density in MAX 9000 family (vsEPM9320RI208-20)
  • MAX 9000 architecture with third-generation MAX interconnect (vsEPM7256SRI208-10)

Ghi chú thiết kế

The EPM9400RC240-20 requires a single 5 V supply (4.75 V to 5.25 V). Per the Operating Requirements for Altera Devices Data Sheet, VCC must rise monotonically during power-up to ensure reliable ISP operation. Inputs may undershoot to -2.0 V or overshoot to 7.0 V only for periods shorter than 20 ns under no-load conditions. DC input levels must remain within -0.5 V on I/O pins and -0.3 V on the four dedicated input pins. Decoupling: place 0.1 uF ceramic capacitors close to every VCC/GND pair on the 240-RQFP package to suppress switching noise.

Route JTAG signals (TCK, TMS, TDI, TDO) as a clean daisy chain if multiple 1149.1 devices share the same JTAG bus. Keep JTAG traces short and isolated from switching signals; add 10 kohm pull-ups on TMS and TDI to prevent spurious test-mode entry. The exposed thermal pad on the 240-RQFP must be soldered to a ground plane for mechanical stability and thermal dissipation, even though the MAX 9000 family is CMOS-low-power.

Do not assume the EPM9400RC240-20 is still recommended for new designs - it is classified NRND by Altera/Intel. For new designs, evaluate MAX II or MAX V CPLDs, which offer lower power and modern features but require a different PCB footprint (not pin-compatible). Also, when migrating an existing design to the EPM9400RC240-15 (faster 15 ns tPD), verify the Quartus II/MAX+PLUS II timing simulation still meets all setup/hold requirements under worst-case conditions.

Thông tin tuân thủ

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Không chì
Yes
Không halogen
Unknown
Khoáng vật xung đột
Compliant

RoHS and halogen-free status not directly stated in the verified web data; lead-free is typical for Altera/Intel 5 V MAX 9000 family. AEC-Q100 not applicable for commercial/industrial CPLD. Conflict-minerals compliance per Intel published CMRT.

Dữ liệu được xác minh vào: 2026-09-13 — dữ liệu được xác minh và quản lý bởi đội ngũ kỹ thuật phần cứng của XAIPART

Tìm kiếm liên quan

EPM9400RC240-20 EPM9400RC240-20 datasheet Altera MAX 9000 CPLD 400 macrocell CPLD 5V 240-RQFP CPLD 20ns tPD EPM9400RC240-20 price buy EPM9400RC240-20 vs EPM9400RC240-15 MAX 9000 240-RQFP pinout EPM9400RC240-20 JTAG programming EPM9400RC240-20 stock distributor 5V CPLD EEPROM in-system programmable what is the delay of EPM9400RC240-20

Các bộ phận và thuật ngữ liên quan

Altera Intel EPM9400RC240-20 EPM9400RC240-15 EPM9400RC208-20 EPM9320GC280-20 EPM9320RI208-20 EPM7256SRI208-10 MAX 9000 MAX 7000 MAX II MAX V CPLD PLD FPGA macrocell Logic Array Block Multiple Array MatriX IEEE 1149.1 JTAG EEPROM in-system programming RQFP RQFP-240 RoHS REACH AEC-Q100 TTL CMOS 5V logic boundary scan Quartus II MAX+PLUS II
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