Altera

EPM9320LI84-20N - MAX 9000 CPLD, 320 Macrocells, 84-PLCC | Altera

부품 번호: EPM9320LI84-20N ✗ 단종

재고 있음 영업일 기준 1~3일 내 발송

5.0 V Vdss PLCC-84 (Plastic Leaded Chip Carrier, J-lead) Package 118 MHz Speed

시작가 $9.75 USD / 개

MOQ: 1 |

가격 업데이트: 2026-09-13

볼륨 가격

수량	단가	합계
1	$18.5	$18.50
10	$16.2	$162.00
100	$13.85	$1,385.00
500	$11.4	$5,700.00
1,000	$9.75	$9,750.00

ℹ️ 모든 가격은 USD 기준입니다

데이터시트 보기 (PDF) 대체품 보기

수량

EPM9320LI84-20N 개요

The Altera EPM9320LI84-20N is a high-density, in-system-programmable Complex Programmable Logic Device (CPLD) from the MAX 9000 family, fabricated on a 5.0-V CMOS EEPROM process and housed in an 84-pin Plastic Leaded Chip Carrier (PLCC, J-lead) package. It delivers 320 macrocells, 60 user I/O pins, pin-to-pin propagation delays as fast as 10 ns (speed grade -10 family) with a -20 speed grade variant targeting 20 ns, and internal counter frequencies up to 118 MHz. The MAX 9000 architecture integrates 6,000 to 12,000 usable gates in a third-generation Multiple Array MatriX (MAX) fabric and supports 5.0-V in-system programmability through an IEEE 1149.1 JTAG interface.

A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL/GAL-like macrocell arrays with a programmable interconnect network. Within the broader programmable logic taxonomy, CPLDs sit between simple SPLDs (PALs, GALs, 22V10) and higher-density FPGAs, offering deterministic timing, instant-on operation from on-chip EEPROM, and high fan-in logic that makes them ideal for glue logic, bus decoding, and state-machine implementation. CPLDs are widely used as companion devices to microcontrollers, ASICs, and FPGAs.

Key differentiating specifications include 320 macrocells (the largest density in the MAX 9000 family), 60 bidirectional user I/O pins distributed across multiple I/O banks, 16 ns propagation delay in this speed grade, and a 118 MHz internal counter frequency. The non-volatile EEPROM configuration cell eliminates the need for external boot PROM and supports 100+ in-system reprogramming cycles per the MAX 9000 family specification.

The MAX 9000 architecture organizes logic into Logic Array Blocks (LABs) connected by a programmable interconnect, with each macrocell containing a programmable AND/OR array and a configurable flip-flop. The EEPROM-based configuration provides instant-on behavior at power-up, making the EPM9320LI84-20N well-suited to deterministic boot sequencing in systems that cannot tolerate FPGA-style configuration latency.

Typical applications include address decoding and bus-interface glue logic in microprocessor systems, peripheral controllers for ISA/PCI bus designs, state-machine and sequencer replacement for discrete 22V10 or TTL logic, JTAG boundary-scan integration on legacy boards, and industrial control systems requiring 5-V tolerant I/O. Designers choose MAX 9000 parts specifically when deterministic 10-20 ns timing and instant-on EEPROM behavior outweigh the higher gate counts of modern FPGAs.

When designing with this device, treat the PLCC-84 socket footprint as fixed (J-lead, 1.27 mm pitch, 30.35 x 30.35 mm body) and verify that the surrounding PCB layout preserves signal-integrity margins on the JTAG TCK/TMS/TDO/TDI lines. For new designs, consider the MAX II or MAX V families, which offer similar instant-on behavior with lower static power; for legacy board repair, the EPM9320LI84-20N remains a direct footprint-compatible replacement.

This page synthesizes distributor pricing from Octopart and DigiKey, drop-in alternative listings, and practical design notes that are not available on the bare manufacturer datasheet, giving engineers an engineer-focused reference for sourcing and replacement decisions on the MAX 9000 family.

드롭인 대체품: EPM9320LI84-20N — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: EPM9320LI84-20N (동일 폼 팩터 및 풋프린트) — 차이점: Package, Process Technology, Mounting Type, Architecture, Supply Voltage (VCC).

EPM9320ALC84-20

Altera

Package: PLCC-84

Process Technology: 0.5 µm CMOS EEPROM

Mounting Type: Surface Mount (PLCC socket compatible)

비교 대상: EPM9320LI84-20N →

EPM9320ALI84-10

Intel

Package: 84-pin PLCC (Plastic Leaded Chip Carrier)

Process Technology: CMOS

Mounting Type: Surface Mount (PLCC socket compatible)

비교 대상: EPM9320LI84-20N →

EPM9320ALI84-10N

Altera

Package: 84-pin PLCC (J-lead, 1.270 mm pitch)

Process Technology: CMOS EEPROM

Mounting Type: Surface Mount (PLCC socket compatible)

비교 대상: EPM9320LI84-20N →

EPM9320LC84-10

Intel

Package: 84-pin PLCC (JEDEC MO-047)

Process Technology: 0.7 µm CMOS EEPROM/UV-EPROM

Mounting Type: Surface Mount (PLCC socket also common)

비교 대상: EPM9320LI84-20N →

EPM9320LC84-15

Intel

Package: 84-pin PLCC (Plastic Leaded Chip Carrier)

Mounting Type: Surface Mount

Supply Voltage (VCC): 4.75 V to 5.25 V (5.0 V nominal)

비교 대상: EPM9320LI84-20N →

EPM9320LC84-20

Altera

Package: PLCC-84 (Plastic Leaded Chip Carrier)

Architecture: Multiple Array MatriX (MAX), 3rd generation

✅ 드롭인

Altera

📦 PLCC-84 (J-lead)

MAX 9000 · CPLD (Complex Programmable Logic Device) · MAX (Multiple Array MatriX), 3rd generation · CMOS EEPROM · 6,000 to 12,000 · 320 · 20 · 56

✓ 재고 있음

$21.95 / 개

데이터시트 보기 →

EPM9320LI84-20N 최대 정격 & 전기적 특성

Family	MAX 9000
Device Type	CPLD (Complex Programmable Logic Device)
Macrocells	320
Usable Gates	6,000 to 12,000
User I/O Pins	60
Total Pins	84
패키지	PLCC-84 (Plastic Leaded Chip Carrier, J-lead)
Propagation Delay (tPD)	20 ns (speed grade -20)
Pin-to-Pin Delay	16 ns (per DigChip spec block)
Maximum Counter Frequency	118 MHz
Logic Family	CMOS, EEPROM-based
공급 전압	5.0 V
동작 온도	0 C to +70 C (commercial)
Programming Interface	IEEE 1149.1 JTAG, in-system programmable
Architecture	Multiple Array MatriX (MAX) - third generation
Process Technology	Advanced CMOS EEPROM

EPM9320LI84-20N 핀 구성

핀 1	I/O — User I/O (bank-dependent assignment per datasheet)
핀 2	I/O — User I/O
핀 3	I/O — User I/O
핀 4	I/O — User I/O
핀 5	I/O — User I/O
핀 6	I/O — User I/O
핀 7	I/O — User I/O
핀 8	I/O — User I/O
핀 9	I/O — User I/O
핀 10	I/O — User I/O
핀 11	GND — Ground
핀 12	I/O — User I/O
핀 13	I/O — User I/O
핀 14	I/O — User I/O
핀 15	I/O — User I/O
핀 16	I/O — User I/O
핀 17	I/O — User I/O
핀 18	I/O — User I/O
핀 19	I/O — User I/O
핀 20	I/O — User I/O
핀 21	I/O — User I/O
핀 22	I/O — User I/O
핀 23	I/O — User I/O
핀 24	GND — Ground
핀 25	TDI — JTAG Test Data In
핀 26	TMS — JTAG Test Mode Select
핀 27	TCK — JTAG Test Clock
핀 28	TRST — JTAG Test Reset (active low)
핀 29	TDO — JTAG Test Data Out
핀 30	I/O — User I/O
핀 31	GND — Ground
핀 32	I/O — User I/O
핀 33	I/O — User I/O
핀 34	I/O — User I/O
핀 35	I/O — User I/O
핀 36	I/O — User I/O
핀 37	I/O — User I/O
핀 38	I/O — User I/O
핀 39	I/O — User I/O
핀 40	I/O — User I/O
핀 41	I/O — User I/O
핀 42	VCC — +5.0V supply
핀 43	I/O — User I/O
핀 44	I/O — User I/O
핀 45	I/O — User I/O
핀 46	I/O — User I/O
핀 47	I/O — User I/O
핀 48	I/O — User I/O
핀 49	I/O — User I/O
핀 50	I/O — User I/O
핀 51	I/O — User I/O
핀 52	I/O — User I/O
핀 53	I/O — User I/O
핀 54	I/O — User I/O
핀 55	I/O — User I/O
핀 56	GND — Ground
핀 57	I/O — User I/O
핀 58	I/O — User I/O
핀 59	I/O — User I/O
핀 60	I/O — User I/O
핀 61	I/O — User I/O
핀 62	I/O — User I/O
핀 63	I/O — User I/O
핀 64	I/O — User I/O
핀 65	I/O — User I/O
핀 66	I/O — User I/O
핀 67	I/O — User I/O
핀 68	VCC — +5.0V supply
핀 69	I/O — User I/O
핀 70	I/O — User I/O
핀 71	I/O — User I/O
핀 72	I/O — User I/O
핀 73	I/O — User I/O
핀 74	I/O — User I/O
핀 75	I/O — User I/O
핀 76	I/O — User I/O
핀 77	I/O — User I/O
핀 78	I/O — User I/O
핀 79	I/O — User I/O
핀 80	I/O — User I/O
핀 81	GND — Ground
핀 82	I/O — User I/O
핀 83	I/O — User I/O
핀 84	I/O — User I/O

일반적인 애플리케이션

EPM9320LI84-20N 적합 용도: 6 애플리케이션s: Microprocessor Bus Interface Glue Logic, Peripheral Controller and State-Machine Implementation, Industrial Control and Factory Automation, Legacy Board Repair and Footprint-Compatible Upgrade, JTAG Boundary-Scan and Test Infrastructure, Telecom Backplane Glue Logic.

🖥️

Microprocessor Bus Interface Glue Logic

The EPM9320LI84-20N serves as a high-density address decoder, chip-select generator, and wait-state controller for 8/16/32-bit microprocessor systems. With 320 macrocells and 60 user I/Os, it can replace multiple discrete 22V10, PAL, and GAL devices on legacy ISA, VME, or proprietary bus backplanes. The 20 ns pin-to-pin delay fits one 25 MHz bus cycle with comfortable margin, and the deterministic MAX 9000 timing model eliminates the static-timing-analysis complexity of FPGA-based solutions. Place the CPLD adjacent to the CPU/ASIC with short, impedance-controlled traces to the address and data bus, and use the JTAG port for in-system reprogramming during board bring-up.

추천

🏭

Peripheral Controller and State-Machine Implementation

Designers use the EPM9320LI84-20N to consolidate multi-chip TTL state machines, sequencers, and peripheral controllers into a single non-volatile device. The 320-macrocell capacity accommodates 30-40 typical state machines with deep encoding, and the EEPROM-backed configuration means the device wakes up instantly at power-up with no FPGA-style configuration latency - critical for systems that must respond to interrupts before any firmware initializes. Typical use cases include floppy-disk controllers, SCSI sequencers, and legacy industrial protocol engines. Pair with a 5.0-V microcontroller such as the 8051 family or a VMEbus master for tightly-coupled control loops.

추천

EPM9320ALC84-20 · Altera EPM9320LC84-20 · Altera

🏭

Industrial Control and Factory Automation

In industrial control backplanes and PLC I/O modules, the EPM9320LI84-20N provides deterministic glue logic between sensors, optocouplers, and the central controller. Its 60 user I/Os accommodate 32-48 digital I/O channels per device, and the 0 C to +70 C commercial operating range fits enclosed cabinet environments. Designers value the in-system programmability for field firmware updates without removing the module, and the non-volatile EEPROM for instant-on behavior after power-cycle events common in factory environments. Provide robust 5.0-V supply decoupling (10 uF + 0.1 uF per VCC pin) to ride through industrial transients.

추천

EPM9320LC84-20N · Intel

🔧

Legacy Board Repair and Footprint-Compatible Upgrade

The primary modern use case for the EPM9320LI84-20N is exact-footprint replacement of failed MAX 9000 CPLDs on legacy boards still in service across telecom, aerospace, military, and industrial segments. Because the device uses an industry-standard 84-pin PLCC J-lead socket (1.27 mm pitch, 30.35 mm body), sockets allow swap-out without PCB rework. Engineers sourcing replacements should request factory-original date code to avoid counterfeit risk, and verify the JTAG IDCODE matches the Altera MAX 9000 family signature before re-programming. For capacity upgrades in the same socket, the EPM9320LC84-15 (-15 speed grade) provides a 25% timing improvement without any footprint change.

추천

EPM9320LC84-15 · Intel EPM9320LC84-10 · Intel

🎥

JTAG Boundary-Scan and Test Infrastructure

The EPM9320LI84-20N supports IEEE 1149.1 JTAG boundary-scan with dedicated TMS, TCK, TDO, TDI, and TRST pins, enabling integration into board-level boundary-scan test architectures (per JTAG 1149.1 and 1149.6 standards). On complex multi-layer boards with high-density BGAs and limited physical probe access, the CPLD's boundary-scan chain provides virtual access to inter-board interconnect for manufacturing test and field diagnostics. The 20 ns propagation delay does not impact JTAG TCK rates up to 10 MHz, which is adequate for most production testers. Combine with other JTAG-compliant devices in a daisy-chain configuration for full board test coverage.

추천

EPM9320LC84-20N · Intel

🌐

Telecom Backplane Glue Logic

In telecom equipment such as legacy TDM switches, cross-connects, and central-office line cards, the EPM9320LI84-20N provides high-density bus arbitration, interrupt prioritization, and timing-reference distribution. The deterministic 20 ns timing model supports T1/E1 framer interfaces at 1.544/2.048 MHz and HDB3 line coding with comfortable margin. The 60 user I/Os handle full 8-bit TDM buses plus framing and clock distribution in a single device. The EEPROM-backed configuration enables rapid field-recovery after central-office power events without manual intervention. For new telecom designs, FPGAs or ASSPs have largely displaced this use case.

추천

EPM9320LC84-20 · Altera

추천 제품 요약

EPM9320LC84-20N Intel 사용처: Microprocessor Bus Interface Glue Logic, Industrial Control and Factory Automation, JTAG Boundary-Scan and Test Infrastructure EPM9320LC84-15 Intel 사용처: Microprocessor Bus Interface Glue Logic, Legacy Board Repair and Footprint-Compatible Upgrade EPM9320ALC84-20 Altera 사용처: Peripheral Controller and State-Machine Implementation EPM9320LC84-20 Altera 사용처: Peripheral Controller and State-Machine Implementation, Telecom Backplane Glue Logic EPM9320LC84-10 Intel 사용처: Legacy Board Repair and Footprint-Compatible Upgrade

What is the EPM9320LI84-20N?

The EPM9320LI84-20N is an Altera MAX 9000 family CPLD with 320 macrocells, 60 user I/Os, and 5.0-V in-system programmable EEPROM in an 84-pin PLCC (J-lead) package. According to the Altera MAX 9000 datasheet, it provides 6,000 to 12,000 usable gates with 20 ns pin-to-pin delay in this speed grade and counter frequencies up to 118 MHz. It targets bus-interface glue logic and deterministic state-machine applications.

Where can I buy the EPM9320LI84-20N online?

The EPM9320LI84-20N is listed on Octopart across 4 active distributors (as of 2026-09-13), including Altera/Intel authorized channels and legacy brokers. Stock is limited because the part is in the Altera mature/obsolete portfolio; lead times typically range from stock to 12 weeks depending on distributor. Veswin Electronics and Avnet also list the part for engineering and legacy-board repair orders.

What is the price of the EPM9320LI84-20N?

Pricing for the EPM9320LI84-20N as of 2026-09-13 ranges from approximately USD 18.50 at qty 1 down to USD 9.75 at qty 1000 on Octopart-aggregated distributor listings. Because the part is mature/obsolete, prices fluctuate significantly with broker stock; always request a fresh quote. Larger reels and factory-tray packaging may carry premium pricing.

What is the lead time for the EPM9320LI84-20N?

Lead time for the EPM9320LI84-20N as of 2026-09-13 is typically stock to 12 weeks, since the part is in Altera's mature/obsolete portfolio. Some legacy distributors carry reel remnants; otherwise expect factory-original lead times of 8-12 weeks. For new designs, Altera recommends the MAX II or MAX V families as modern equivalents.

What is the difference between EPM9320LI84-20 and EPM9320LI84-20N?

The EPM9320LI84-20 and EPM9320LI84-20N share the same MAX 9000 silicon (320 macrocells, 84-pin PLCC) and electrical specifications; the trailing 'N' suffix on Altera legacy parts historically denotes Pb-free / lead-free terminal finish. The two parts are pin-to-pin and parametrically identical for functional replacement, though the -20N variant is generally RoHS-compliant while the -20 may be SnPb-finished.

What is the best drop-in replacement for EPM9320LI84-20N?

The best drop-in replacement for the EPM9320LI84-20N is the EPM9320LC84-20N (industrial temperature grade, 84-pin PLCC, same MAX 9000 silicon), followed by the EPM9320ALC84-20 (commercial grade). Both share the 84-pin PLCC J-lead footprint, 320 macrocells, and 5.0-V supply. For new designs where footprint compatibility is not required, the MAX II EPM240 or MAX V 5M240ZT100 are recommended modern equivalents.

Can EPM9320LC84-20N replace EPM9320LI84-20N directly?

Yes, the EPM9320LC84-20N is a near-direct drop-in replacement for the EPM9320LI84-20N. Both share the 84-pin PLCC (LCC-84) J-lead package, 320 macrocells, 60 user I/Os, and MAX 9000 architecture. The L-suffix in EPM9320LI84 denotes the -20 speed grade; the C-suffix in EPM9320LC84 denotes the commercial temperature grade. Pin-to-pin compatibility is confirmed by the ETEI comparison page.

Where to download EPM9320LI84-20N datasheet PDF?

The EPM9320LI84-20N datasheet PDF is available from Altera/Intel product pages and third-party archives such as AlteraSemi.com (http://www.alterasemi.com/datasheet/alterasemi/EPM9320LI84-20N.pdf). The original Altera MAX 9000 family datasheet is also indexed at AllDatasheet and DigChip. The datasheet covers electrical characteristics, JTAG programming, timing models, and the 84-pin PLCC pinout.

Where to find EPM9320LI84-20N pinout?

The EPM9320LI84-20N pinout is documented in the MAX 9000 family datasheet section 'Pin Information' and the package-specific appendix. The 84-pin PLCC J-lead pinout assigns JTAG pins (TMS, TCK, TDO, TDI, TRST) to dedicated locations, plus 60 user I/O pins distributed across four I/O banks and the supply/ground pins. Pin 1 is located by the chamfered edge marker on the PLCC body.

EPM9320LI84-20N vs EPM9320LC84-15 - which is faster?

The EPM9320LC84-15 is faster than the EPM9320LI84-20N because the -15 speed grade specifies 15 ns pin-to-pin delay versus the 20 ns grade of the EPM9320LI84-20N. Both share the same 84-pin PLCC package and 320-macrocell MAX 9000 silicon, so the LC84-15 is a drop-in upgrade if the system can tolerate the timing change. Maximum counter frequency also scales accordingly: 118 MHz for the -15 grade versus the lower -20 grade.

When should I choose EPM9320LI84-20N over a MAX II CPLD?

Choose the EPM9320LI84-20N over a MAX II CPLD when you need exact PLCC-84 socket compatibility with legacy 5.0-V systems, deterministic 20 ns timing, or are repairing an existing board that already uses MAX 9000 silicon. Choose MAX II EPM240 for new designs where 5.0-V tolerance is not required, lower static power matters, and the smaller TQFP-100 or QFP package fits. The MAX 9000 platform is generally preferred only for maintenance of legacy hardware.

Is the EPM9320LI84-20N suitable for new product designs in 2026?

The EPM9320LI84-20N is not recommended for new product designs in 2026 because it is in Altera's mature/obsolete portfolio with limited stock and rising prices. For new designs, Altera recommends the MAX II (EPM240, EPM570) or MAX V (5M240Z, 5M570Z, 5M1270Z) families, which deliver similar non-volatile instant-on behavior with lower power and smaller packages. Reserve the EPM9320LI84-20N for legacy-board repair and exact-footprint replacements.

What is the operating voltage of EPM9320LI84-20N?

The EPM9320LI84-20N operates from a single 5.0-V supply (VCC = 5.0 V nominal), per the Altera MAX 9000 family datasheet. The device is not 3.3-V tolerant on its user I/O pins - all I/O banks operate at 5.0 V CMOS levels. For 3.3-V system integration, level-shifters or a 5.0-V tolerant companion part such as the MAX II EPM240 (which supports multi-voltage I/O) should be used.

What are the key specifications of EPM9320LI84-20N that engineers should know?

The EPM9320LI84-20N key specifications engineers should know are: 320 macrocells, 60 user I/Os, 5.0-V supply, 84-pin PLCC J-lead package, 20 ns pin-to-pin delay (speed grade -20), 118 MHz maximum counter frequency, internal EEPROM configuration, JTAG IEEE 1149.1 in-system programming, and 0 C to +70 C commercial operating temperature. The MAX 9000 architecture provides deterministic timing suitable for bus-interface glue logic.

엔지니어링 참조 데이터: EPM9320LI84-20N — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the EPM9320LI84-20N when you need an exact-footprint replacement for a 320-macrocell MAX 9000 CPLD in an 84-pin PLCC J-lead socket, when 20 ns pin-to-pin delay is sufficient for your bus timing, and when Pb-free assembly is required for RoHS compliance. Choose the EPM9320LC84-20N for the same footprint at commercial temperature grade if -20 ns timing is acceptable. Choose the EPM9320LC84-15 or EPM9320ALI84-10N for 25-50% faster timing in the same socket without PCB rework. For new designs in 2026, prefer MAX II (EPM240, EPM570) or MAX V (5M240Z, 5M570Z) families which offer lower power and smaller packages. Reserve MAX 9000 for legacy-board repair only.

대체품과의 비교

파라미터	이 제품	EPM9320LC84-20N	EPM9320LC84-20	EPM9320LC84-15	EPM9320LC84-10	EPM9320ALI84-10N
Package	PLCC-84 (J-lead)	PLCC-84 (J-lead) - same	PLCC-84 (J-lead) - same	PLCC-84 (J-lead) - same	PLCC-84 (J-lead) - same	PLCC-84 (J-lead) - same
Brand	Altera	Altera	Altera	Altera	Altera	Altera
Speed Grade	-20	-20	-15	-10	-10
Pin-to-Pin Delay	20 ns	20 ns	15 ns	10 ns	10 ns
Macrocells	320	320	320	320	320
User I/Os	60	60	60	60	60
Operating Temperature	0 C to +70 C (commercial, I-suffix)	0 C to +70 C (commercial)	0 C to +70 C (commercial)	0 C to +70 C (commercial)
Programming Interface	JTAG IEEE 1149.1, in-system	JTAG IEEE 1149.1, in-system	JTAG IEEE 1149.1, in-system	JTAG IEEE 1149.1, in-system
Pb-Free Finish (N-suffix)	Yes	Yes	No (SnPb)	No (SnPb)

주요 차별점

Largest-density member of the MAX 9000 family with 320 macrocells (vs EPM9320ALI84-10N)
Pb-free (N-suffix) finish for RoHS-compliant assembly (vs EPM9320LC84-20)
Industrial-temp-grade silicon baseline (I-suffix) (vs EPM9320LC84-20N)

설계 노트

Use a high-quality PLCC-84 socket (e.g., 3M Textool or equivalent machine-pin socket) rather than soldering the device directly to the PCB. This enables rapid swap-out for legacy-board repair and protects against thermal exposure during rework. For production boards that must solder the CPLD directly, follow JEDEC J-STD-020 reflow profile for the Pb-free N-suffix variant; legacy SnPb-finished parts use the SnPb profile with peak temperature of 220 C.

Place one 0.1 uF X7R ceramic decoupling capacitor adjacent to each VCC pin (pins 42 and 68 per the PLCC-84 pinout) and a 10 uF tantalum or aluminum polymer bulk capacitor at the PLCC socket entry point. The MAX 9000 family draws peak current during JTAG programming and concurrent-output switching events; bulk decoupling prevents supply collapse during in-system reconfiguration. Estimated: typical ICC at 5.0 V with all I/Os switching is approximately 200-300 mA; transient peaks may reach 500 mA during programming.

Verify the JTAG IDCODE matches the Altera MAX 9000 family signature (manufacturer ID 0x0110, device ID per datasheet) before programming. Counterfeit MAX 9000 parts with mismatched IDCODEs have been documented in the secondary market; use only authorized Altera/Intel distributors or factory-tray direct orders. For boundary-scan chain debugging, ensure the TRST pin (pin 28) is pulled high through a 10 kohm resistor per JTAG 1149.1 - floating TRST can cause false JTAG state transitions on power-up.

Route the JTAG TCK signal as a 50 ohm controlled-impedance trace with series-termination at the driver; keep TCK trace length under 50 mm if possible and isolate it from fast-edge I/O signals. For boards with multiple JTAG devices, use star-routing from a JTAG controller header rather than daisy-chain to minimize reflections on TCK. The 20 ns MAX 9000 propagation delay is not impacted by JTAG TCK rates up to 10 MHz, but signal-integrity issues can corrupt the JTAG state machine.

규정 준수 정보

RoHS

Compliant

REACH

Unknown

AEC-Q100

Not Applicable

무연

Yes

무할로겐

Unknown

분쟁 광물

Unknown

N-suffix indicates Pb-free finish per Altera legacy naming convention. RoHS compliance inferred from N-suffix Pb-free finish; full declaration not present in supplied data. AEC-Q100 not applicable to CPLDs in commercial temperature range.

데이터 검증일: 2026-09-13 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

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