Altera

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

MPN: EPM9400RC240-20 ✗ اختتامِ زندگی

4.75 V to 5.25 V Vdss 240-RQFP (32x32 mm) with exposed pad Package

قیمت کی درخواست کریں

MOQ: 1 |

ڈیٹا شیٹ دیکھیں (PDF) متبادل دیکھیں

مقدار

EPM9400RC240-20 جائزہ

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.

کے لیے ڈراپ اِن متبادل EPM9400RC240-20 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔

اس سیریز میں مختلف ورژن

اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں EPM9400RC240-20 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Macrocells, Architecture, Usable Gates, Pin-to-Pin Delay (tPD).

EPM9400RC240-15

Intel

Package: 240-pin RQFP (Plastic Quad Flat Pack)

Architecture: CMOS EEPROM-based programmable logic with Multiple Array MatriX (MAX)

Usable Gates: 8,000

موازنہ کریں EPM9400RC240-20 →

EPM9480RC240-15

Altera

Package: 240-pin RQFP (32x32 mm)

Usable Gates: 12,000

Pin-to-Pin Delay (tPD): 15 ns

موازنہ کریں EPM9400RC240-20 →

EPM9480RC240-20

Altera

Package: 240-RQFP (32x32 mm, FQFP, Gull Wing)

Macrocells: 480

Usable Gates: 10,000

موازنہ کریں EPM9400RC240-20 →

EPM9560RI240-20N

Intel

Package: 240-pin Power-enhanced BGA (RI240)

Macrocells: 560

Architecture: Multiple Array MatriX (MAX) - third generation

موازنہ کریں EPM9400RC240-20 →

EPM9400RC240-15

✅ ڈراپ-اِن

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

قیمت کے لیے رابطہ کریں

ڈیٹا شیٹ دیکھیں →

ℹ️ 4 کراس پیکیج پارٹ(s) چھپے ہوئے — مختلف پیکیج کے لیے PCB ری ورک درکار ہے اور یہ حقیقی ڈراپ اِن متبادل نہیں ہے۔ ہم سے رابطہ کریں اگر آپ کو کراس پیکیج تجاویز کی ضرورت ہو۔

EPM9400RC240-20 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات

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

EPM9400RC240-20 پن کنفیگریشن

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

عام استعمالات

EPM9400RC240-20 کے لیے موزوں ہے 6 ایپلیکیشنs: 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.

تجویز کردہ

🏭

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.

تجویز کردہ

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.

تجویز کردہ

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.

تجویز کردہ

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.

تجویز کردہ

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.

تجویز کردہ

EPM9400RC240-15 · Intel EPM9320GC280-20 · Altera

تجویز کردہ پروڈکٹس کا خلاصہ

EPM9400RC240-15 Intel استعمال ہوتا ہے: 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 استعمال ہوتا ہے: Address Decoding and Bus Interface Logic EPM7512BQC208-7 Altera استعمال ہوتا ہے: Industrial Control and PLC Logic EPM7256SQC208-10 Intel استعمال ہوتا ہے: Legacy 5 V System Upgrade Paths, Legacy 5 V System Upgrade Paths EPM9320RC208-20 Altera استعمال ہوتا ہے: Peripheral Glue Logic for Microcontrollers EPM7256SRC208-7 Altera استعمال ہوتا ہے: JTAG Boundary-Scan Test Integration EPM9320GC280-20 Altera استعمال ہوتا ہے: 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.

کے لیے انجینئرنگ ریفرنس ڈیٹا EPM9400RC240-20 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔

انتخاب کی گائیڈ

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.

متبادلات کے ساتھ موازنہ

پیرامیٹر	یہ پروڈکٹ	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

اہم امتیازی خصوصیات

Same-package faster tPD drop-in option available (بمقابلہEPM9400RC240-15)
Highest macrocell density in MAX 9000 family (بمقابلہEPM9320RI208-20)
MAX 9000 architecture with third-generation MAX interconnect (بمقابلہEPM7256SRI208-10)

ڈیزائن نوٹس

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.

تعمیل کی معلومات

RoHS

Unknown

REACH

Unknown

AEC-Q100

Not Applicable

لیڈ فری

Yes

ہیلوجن فری

Unknown

کنفلیکٹ منرلز

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.

ڈیٹا کی تصدیق کی تاریخ: 2026-09-13 — ڈیٹا XAIPART کی کمپوننٹ انجینئرنگ ٹیم کے ذریعے تصدیق شدہ اور ترتیب شدہ

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