Altera

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

N.º da peça: EPM9400RC240-20 ✗ Fim de vida
Em estoque Enviado em 1 a 3 dias úteis
4.75 V to 5.25 V Vdss 240-RQFP (32x32 mm) with exposed pad Package
A partir de $23.85 USD / unidade
MOQ: 1 |
Preço atualizado: 2026-09-13
Preços por volume
Qtd. Preço unitário Total
1 $36.5 $36,50
10 $33.2 $332,00
100 $29.75 $2.975,00
500 $26.4 $13.200,00
1.000 $23.85 $23.850,00
ℹ️ Todos os preços estão em USD

EPM9400RC240-20 Visão geral

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.

Alternativas drop-in para EPM9400RC240-20 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.

Variantes desta série

Modelos da mesma série compatíveis como drop-in com EPM9400RC240-20 (mesmo formato e footprint) — diferindo em 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
Comparar com EPM9400RC240-20 →
Altera
Package: 240-pin RQFP (32x32 mm)
Usable Gates: 12,000
Pin-to-Pin Delay (tPD): 15 ns
Comparar com EPM9400RC240-20 →
Altera
Package: 240-RQFP (32x32 mm, FQFP, Gull Wing)
Macrocells: 480
Usable Gates: 10,000
Comparar com EPM9400RC240-20 →
Intel
Package: 240-pin Power-enhanced BGA (RI240)
Macrocells: 560
Architecture: Multiple Array MatriX (MAX) - third generation
Comparar com EPM9400RC240-20 →

Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:

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

✓ Em estoque

$22.4 / unidade

Ver ficha técnica →
ℹ️ 4 peça(s) de outro encapsulamento ocultada(s) — um encapsulamento diferente exige retrabalho na PCB e não é uma substituição drop-in verdadeira. Fale conosco se precisar de sugestões de outros encapsulamentos.

EPM9400RC240-20 Classificações máximas e características elétricas

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
Encapsulamento 240-RQFP (32x32 mm) with exposed pad
Supplier Device Package 240-RQFP
Tipo de montagem Surface Mount
Technology CMOS, EEPROM-based
Architecture MAX (Multiple Array MatriX) - third generation
Series MAX 9000

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

Aplicações típicas

EPM9400RC240-20 é adequado para 6 aplicaçãos: 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.

🏭

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.

✈️

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.

🖥️

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.

🧩

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.

🌐

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.

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.

Dados de referência de engenharia para EPM9400RC240-20 — comparação, orientação de projeto e informações de conformidade.

Guia de seleção

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.

Comparação com alternativas

Parâmetro Este produto 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

Principais diferenciais

  • Same-package faster tPD drop-in option available (vs EPM9400RC240-15)
  • Highest macrocell density in MAX 9000 family (vs EPM9320RI208-20)
  • MAX 9000 architecture with third-generation MAX interconnect (vs EPM7256SRI208-10)

Notas de projeto

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.

Informações de conformidade

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Sem chumbo
Yes
Sem halogênios
Unknown
Minerais de conflito
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.

Dados verificados em: 2026-09-13 — dados verificados e curados pela equipe de engenharia de componentes da XAIPART

Buscas relacionadas

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

Componentes & termos relacionados

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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