Intel

EPM9320RI208-20 - MAX 9000 CPLD, 320 Macrocells, 20ns | Intel

料号: EPM9320RI208-20 ✗ 停产
有现货 1-3 个工作日内发货
5.0 V Vdss 208-pin RQFP (Power Quad Flat Pack) Package 100 MHz Speed
低至 $18.95 USD / 件
最小起订量: 1 |
价格更新于: 2026-09-13
批量定价
数量 单价 小计
1 $38.5 $38.50
10 $32.75 $327.50
100 $27.2 $2,720.00
500 $22.4 $11,200.00
1,000 $18.95 $18,950.00
ℹ️ 所有价格均以 USD 计价

EPM9320RI208-20 概述

The Intel (formerly Altera) EPM9320RI208-20 is a high-performance CMOS EEPROM-based Complex Programmable Logic Device (CPLD) from the MAX 9000 device family, housed in a 208-pin RQFP package with 320 macro cells, 6,000 usable gates, and a 20 ns pin-to-pin propagation delay. The device is built on Altera's third-generation Multiple Array MatriX (MAX) architecture and supports 5.0-V in-system programmability (ISP) through a built-in IEEE Std. 1149.1 JTAG interface.

A CPLD (Complex Programmable Logic Device) is a non-volatile, instantaneously-on programmable logic device that combines multiple PAL-like macrocell arrays on a single chip with a programmable interconnect matrix. CPLDs sit hierarchically below FPGAs in the programmable logic taxonomy, offering deterministic timing, lower power, and simpler glue-logic integration than FPGAs, while delivering far higher logic density than legacy SPLDs/PALs. They are commonly used as bus bridges, address decoders, and state-machine controllers in digital systems.

Key features of the EPM9320RI208-20 include four dedicated low-skew global input pins (typically used for clocks, clear, and output-enable distribution), a maximum internal operating frequency of 100 MHz, in-system programmability via JTAG, and industrial-grade temperature operation. The 5.0-V VCCIO core supply makes it directly compatible with TTL/CMOS logic families popular in legacy industrial designs.

The MAX 9000 architecture employs an enhanced EEPROM process and a fast interconnect matrix to deliver predictable timing across all 320 macro cells. Each Logic Array Block (LAB) contains 16 macro cells feeding the Programmable Interconnect Array (PIA), and the device includes 52 I/O pins in the 208-pin RQFP footprint with multiple I/O standards supported.

Typical applications include industrial automation controllers, glue-logic integration in microprocessor designs, bus-interface bridging, address decoding, and state-machine implementation in telecommunications and embedded systems. The non-volatile EEPROM configuration cell ensures instant-on behavior with no external boot PROM required.

When designing with this device, ensure that VCC rises monotonically during power-up and that the JTAG pins (TDI, TMS, TCK, TDO) are correctly terminated to support in-system programming. The four dedicated input pins provide low-skew clock distribution across the entire device and should be preferred for global timing signals.

This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, enabling faster sourcing decisions for legacy 5-V MAX 9000 designs.

直接替换替代料: EPM9320RI208-20 ——相同封装,引脚兼容。需要 PCB 改动的不同封装料号已排除。

本系列中的变体

可与以下型号直接替换的同系列型号: EPM9320RI208-20 (相同外形与封装尺寸) ——差异在于 Package, In-System Programmability, Operating Temperature, RoHS Status, Usable Gates.

Altera
Package: 208-pin RQFP (S-PQFP-G208)
Operating Temperature: -40 C to +85 C (industrial)
RoHS Status: unknown
对比 EPM9320RI208-20 →
Altera
Package: 208-pin RQFP (RC)
Operating Temperature: Commercial (0C to +70C) - 'C' suffix
RoHS Status: ROHS3 Compliant (per fpgalink listing)
对比 EPM9320RI208-20 →
Altera
Package: 208-pin RQFP (Power QFP)
In-System Programmability: Yes (ISP via JTAG)
对比 EPM9320RI208-20 →
Intel
Package: 208-pin RQFP (PowerQuad Flat Pack)
In-System Programmability: Yes, via IEEE Std. 1149.1 JTAG
对比 EPM9320RI208-20 →
Altera
Package: 208-RQFP, exposed pad (208-BFQFP)
Operating Temperature: 0 °C to 70 °C (commercial)
对比 EPM9320RI208-20 →
Altera
Package: 208-pin RQFP (PowerQuad II)
In-System Programmability: Yes, via IEEE Std. 1149.1 JTAG
对比 EPM9320RI208-20 →
Altera
Package: 208-pin RQFP (PowerQuad II)
In-System Programmability: Yes (JTAG/ISP)
RoHS Status: Compliant (N suffix = lead-free)
对比 EPM9320RI208-20 →
Altera
Package: 208-pin PQFP (Plastic Quad Flat Pack)
In-System Programmability: Yes, 5.0 V ISP via JTAG
对比 EPM9320RI208-20 →
Altera
Package: 208-pin RQFP (28x28 mm)
Usable Gates: 8,000
对比 EPM9320RI208-20 →
Altera
Package: RQFP-205 (PowerQuad4)
In-System Programmability: Yes (IEEE 1149.1 JTAG)
Operating Temperature: -40 C to +85 C (industrial)
对比 EPM9320RI208-20 →
Intel
Operating Temperature: -40 °C to +85 °C (Industrial)
RoHS Status: ROHS3 Compliant
Usable Gates: 12,000
对比 EPM9320RI208-20 →

快速对比工具——选择替代料号进行并排对比:

EPM9320RI208-10N

✅ 直接替换
Altera
📦 208-pin RQFP
MAX 9000 · Complex Programmable Logic Device (CPLD) · 6,000 · 320 · 20 · 10 ns · 100 MHz · 5 V

✓ 有现货

$27.2 / 个

查看数据手册 →

EPM9320RI208-15

✅ 直接替换
📦 208-pin RQFP
15 ns tPD vs 20 ns (-25%), otherwise pin-to-pin identical including 320 macro cells

📋 参考替代料(不在目录中)

EPM9320RC208-20

✅ 直接替换
Altera
📦 208-pin RQFP
MAX 9000 · CPLD (Complex Programmable Logic Device) · 320 · 20 · 6,000 · 132 · 20 ns · 4.75 V to 5.25 V

✓ 有现货

$21.9 / 个

查看数据手册 →

EPM9320RC208-20N

✅ 直接替换
Altera
📦 208-pin RQFP
MAX 9000 · Complex Programmable Logic Device (CPLD) · 6,000 · 320 · 20 · 20 ns · 100 MHz · 5.0 V

✓ 有现货

联系询价

查看数据手册 →

EPM9320RC208-15N

✅ 直接替换
Intel
📦 208-pin RQFP
MAX 9000 · CPLD (Complex Programmable Logic Device) · 6,000 · 320 · 484 · 128 · 15 ns · 117.6 MHz

✓ 有现货

联系询价

查看数据手册 →

EPM9320RC208-15

✅ 直接替换
Altera
📦 208-pin RQFP
MAX 9000 · 320 · 6,000 · 15 ns (speed grade -15) · 117.6 MHz · 5.0 V · EEPROM-based (non-volatile) · Yes (ISP via JTAG)

✓ 有现货

联系询价

查看数据手册 →

EPM9320RC208-10

✅ 直接替换
Altera
📦 208-pin RQFP
MAX 9000 · CPLD (Complex Programmable Logic Device) · 6,000 · 320 · 208-pin RQFP (RC) · Commercial (0C to +70C) - 'C' suffix · 5 V

✓ 有现货

$26.4 / 个

查看数据手册 →

EPM9320RI208-20 最大额定值与电气特性

Family MAX 9000
Device Type CPLD (Complex Programmable Logic Device)
Macrocells 320
Usable Gates 6,000
Propagation Delay (tPD) 20 ns
Maximum Operating Frequency 100 MHz
Supply Voltage (VCC) 5.0 V
Logic Elements / LABs 20 Logic Array Blocks (16 macro cells each)
Programmable Interconnect Programmable Interconnect Array (PIA)
In-System Programmability Yes - IEEE 1149.1 JTAG, 5.0-V ISP
Dedicated Input Pins 4 (low-skew global)
封装 208-pin RQFP (Power Quad Flat Pack)
Operating Temperature Grade Industrial
Technology CMOS EEPROM
安装类型 Surface Mount

EPM9320RI208-20 引脚配置

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
引脚 1 I/O — User I/O pin (signal direction programmable)
引脚 2 I/O — User I/O pin
引脚 3 I/O — User I/O pin
引脚 4 GCLK1 — Dedicated global clock input 1 (low-skew)
引脚 5 I/O — User I/O pin
引脚 6 I/O — User I/O pin
引脚 7 OE1 — Dedicated global output enable input 1
引脚 8 I/O — User I/O pin
引脚 9 I/O — User I/O pin
引脚 10 I/O — User I/O pin
引脚 11 GND — Ground
引脚 12 I/O — User I/O pin
引脚 13 I/O — User I/O pin
引脚 14 I/O — User I/O pin
引脚 15 CLR1 — Dedicated global clear input 1
引脚 16 I/O — User I/O pin
引脚 17 I/O — User I/O pin
引脚 18 VCC — 5.0-V supply voltage
引脚 19 I/O — User I/O pin
引脚 20 I/O — User I/O pin
引脚 21 I/O — User I/O pin
引脚 22 GCLK2 — Dedicated global clock input 2 (low-skew)
引脚 23 I/O — User I/O pin
引脚 24 I/O — User I/O pin
引脚 25 OE2 — Dedicated global output enable input 2
引脚 26 I/O — User I/O pin
引脚 27 I/O — User I/O pin
引脚 28 I/O — User I/O pin
引脚 29 I/O — User I/O pin
引脚 30 GND — Ground
引脚 31 I/O — User I/O pin
引脚 32 I/O — User I/O pin
引脚 33 TDI — JTAG Test Data In
引脚 34 I/O — User I/O pin
引脚 35 TMS — JTAG Test Mode Select
引脚 36 I/O — User I/O pin
引脚 37 TCK — JTAG Test Clock
引脚 38 I/O — User I/O pin
引脚 39 I/O — User I/O pin
引脚 40 VCC — 5.0-V supply voltage
引脚 41 TDO — JTAG Test Data Out
引脚 42 I/O — User I/O pin
引脚 43 I/O — User I/O pin
引脚 44 I/O — User I/O pin
引脚 45 CLR2 — Dedicated global clear input 2
引脚 46 I/O — User I/O pin
引脚 47 I/O — User I/O pin
引脚 48 I/O — User I/O pin
引脚 49 I/O — User I/O pin
引脚 50 I/O — User I/O pin
引脚 51 GND — Ground
引脚 52 I/O — User I/O pin
引脚 53 I/O — User I/O pin
引脚 54 I/O — User I/O pin
引脚 55 I/O — User I/O pin
引脚 56 I/O — User I/O pin
引脚 57 I/O — User I/O pin
引脚 58 VCC — 5.0-V supply voltage
引脚 59 I/O — User I/O pin
引脚 60 I/O — User I/O pin
引脚 61 I/O — User I/O pin
引脚 62 I/O — User I/O pin
引脚 63 I/O — User I/O pin
引脚 64 I/O — User I/O pin
引脚 65 GND — Ground
引脚 66 I/O — User I/O pin
引脚 67 I/O — User I/O pin
引脚 68 I/O — User I/O pin
引脚 69 I/O — User I/O pin
引脚 70 I/O — User I/O pin
引脚 71 I/O — User I/O pin
引脚 72 VCC — 5.0-V supply voltage
引脚 73 I/O — User I/O pin
引脚 74 I/O — User I/O pin
引脚 75 I/O — User I/O pin
引脚 76 I/O — User I/O pin
引脚 77 I/O — User I/O pin
引脚 78 I/O — User I/O pin
引脚 79 GND — Ground
引脚 80 I/O — User I/O pin
引脚 81 I/O — User I/O pin
引脚 82 I/O — User I/O pin
引脚 83 I/O — User I/O pin
引脚 84 I/O — User I/O pin
引脚 85 I/O — User I/O pin
引脚 86 VCC — 5.0-V supply voltage
引脚 87 I/O — User I/O pin
引脚 88 I/O — User I/O pin
引脚 89 I/O — User I/O pin
引脚 90 I/O — User I/O pin
引脚 91 I/O — User I/O pin
引脚 92 I/O — User I/O pin
引脚 93 GND — Ground
引脚 94 I/O — User I/O pin
引脚 95 I/O — User I/O pin
引脚 96 I/O — User I/O pin
引脚 97 I/O — User I/O pin
引脚 98 I/O — User I/O pin
引脚 99 I/O — User I/O pin
引脚 100 VCC — 5.0-V supply voltage
引脚 101 I/O — User I/O pin
引脚 102 I/O — User I/O pin
引脚 103 I/O — User I/O pin
引脚 104 I/O — User I/O pin
引脚 105 I/O — User I/O pin
引脚 106 I/O — User I/O pin
引脚 107 GND — Ground
引脚 108 I/O — User I/O pin
引脚 109 I/O — User I/O pin
引脚 110 I/O — User I/O pin
引脚 111 I/O — User I/O pin
引脚 112 I/O — User I/O pin
引脚 113 I/O — User I/O pin
引脚 114 VCC — 5.0-V supply voltage
引脚 115 I/O — User I/O pin
引脚 116 I/O — User I/O pin
引脚 117 I/O — User I/O pin
引脚 118 I/O — User I/O pin
引脚 119 I/O — User I/O pin
引脚 120 I/O — User I/O pin
引脚 121 GND — Ground
引脚 122 I/O — User I/O pin
引脚 123 I/O — User I/O pin
引脚 124 I/O — User I/O pin
引脚 125 I/O — User I/O pin
引脚 126 I/O — User I/O pin
引脚 127 I/O — User I/O pin
引脚 128 VCC — 5.0-V supply voltage
引脚 129 I/O — User I/O pin
引脚 130 I/O — User I/O pin
引脚 131 I/O — User I/O pin
引脚 132 I/O — User I/O pin
引脚 133 I/O — User I/O pin
引脚 134 I/O — User I/O pin
引脚 135 GND — Ground
引脚 136 I/O — User I/O pin
引脚 137 I/O — User I/O pin
引脚 138 I/O — User I/O pin
引脚 139 I/O — User I/O pin
引脚 140 I/O — User I/O pin
引脚 141 I/O — User I/O pin
引脚 142 VCC — 5.0-V supply voltage
引脚 143 I/O — User I/O pin
引脚 144 I/O — User I/O pin
引脚 145 I/O — User I/O pin
引脚 146 I/O — User I/O pin
引脚 147 I/O — User I/O pin
引脚 148 I/O — User I/O pin
引脚 149 GND — Ground
引脚 150 I/O — User I/O pin
引脚 151 I/O — User I/O pin
引脚 152 I/O — User I/O pin
引脚 153 I/O — User I/O pin
引脚 154 I/O — User I/O pin
引脚 155 I/O — User I/O pin
引脚 156 VCC — 5.0-V supply voltage
引脚 157 I/O — User I/O pin
引脚 158 I/O — User I/O pin
引脚 159 I/O — User I/O pin
引脚 160 I/O — User I/O pin
引脚 161 I/O — User I/O pin
引脚 162 I/O — User I/O pin
引脚 163 GND — Ground
引脚 164 I/O — User I/O pin
引脚 165 I/O — User I/O pin
引脚 166 I/O — User I/O pin
引脚 167 I/O — User I/O pin
引脚 168 I/O — User I/O pin
引脚 169 I/O — User I/O pin
引脚 170 VCC — 5.0-V supply voltage
引脚 171 I/O — User I/O pin
引脚 172 I/O — User I/O pin
引脚 173 I/O — User I/O pin
引脚 174 I/O — User I/O pin
引脚 175 I/O — User I/O pin
引脚 176 I/O — User I/O pin
引脚 177 GND — Ground
引脚 178 I/O — User I/O pin
引脚 179 I/O — User I/O pin
引脚 180 I/O — User I/O pin
引脚 181 I/O — User I/O pin
引脚 182 I/O — User I/O pin
引脚 183 I/O — User I/O pin
引脚 184 VCC — 5.0-V supply voltage
引脚 185 I/O — User I/O pin
引脚 186 I/O — User I/O pin
引脚 187 I/O — User I/O pin
引脚 188 I/O — User I/O pin
引脚 189 I/O — User I/O pin
引脚 190 I/O — User I/O pin
引脚 191 GND — Ground
引脚 192 I/O — User I/O pin
引脚 193 I/O — User I/O pin
引脚 194 I/O — User I/O pin
引脚 195 I/O — User I/O pin
引脚 196 I/O — User I/O pin
引脚 197 I/O — User I/O pin
引脚 198 VCC — 5.0-V supply voltage
引脚 199 I/O — User I/O pin
引脚 200 I/O — User I/O pin
引脚 201 I/O — User I/O pin
引脚 202 I/O — User I/O pin
引脚 203 I/O — User I/O pin
引脚 204 I/O — User I/O pin
引脚 205 GND — Ground
引脚 206 I/O — User I/O pin
引脚 207 I/O — User I/O pin
引脚 208 I/O — User I/O pin

典型应用

EPM9320RI208-20 适用于 6 应用s: Industrial Automation Controllers, Glue Logic and Address Decoding, Telecommunications Bus Bridges, State Machine Implementation, Embedded System Peripheral Expansion, Legacy System Modernization and Form-Fit Replacements.

🏭

Industrial Automation Controllers

The EPM9320RI208-20 is well-suited for industrial automation controllers because its 320 macro cells and 6,000 usable gates provide enough logic density for complex state machines, encoder/decoder logic, and PLC-style ladder replacement, while its industrial temperature grade and 5-V supply tolerance match factory-floor environments. The 100 MHz maximum operating frequency and 20 ns tPD allow deterministic timing for real-time control loops, and the EEPROM-based non-volatile configuration eliminates boot-time delays critical to machine startup. The 4 dedicated low-skew global input pins can distribute high-speed encoder signals across the chip without timing skew. Designers can implement glue logic between microcontrollers, sensor front-ends, and motor drivers on a single device.

🔧

Glue Logic and Address Decoding

The EPM9320RI208-20 excels as a glue-logic integration device for microprocessor systems where address decoding, chip-select generation, and wait-state insertion must be deterministic and instantly available at power-up. Its 320 macro cells and Programmable Interconnect Array (PIA) provide predictable timing regardless of routing, while the EEPROM configuration guarantees instant-on behavior without an external boot PROM. The 5-V VCC and TTL-compatible I/O allow direct connection to legacy 80C186, 68k, and 8051-family microprocessors without level translation. The device's 20 ns tPD comfortably decodes memory cycles in systems running up to 25 MHz, and the 208-pin RQFP package provides ample I/O for 16- and 32-bit bus implementations.

🌐

Telecommunications Bus Bridges

The EPM9320RI208-20 is frequently deployed in telecommunications equipment as a bus-bridge between legacy and modern interfaces, because its 320 macro cells and 6,000 usable gates can implement protocol converters (e.g., PCI-to-ISA, UART multiplexing, HDLC framing) on a single chip. The 5.0-V supply and TTL-compatible I/O simplify integration into legacy telecom linecards, while the IEEE 1149.1 JTAG interface allows in-field firmware updates as standards evolve. The 100 MHz maximum internal frequency supports common telecom clock domains, and the device's deterministic 20 ns tPD is ideal for synchronous bus turnaround. Industrial temperature operation is critical for outdoor or uncontrolled-environment installations.

🤖

State Machine Implementation

The EPM9320RI208-20 is ideally suited for complex state-machine controllers in embedded systems because its MAX 9000 macrocell architecture is designed around D-flip-flops with programmable output enables, making it straightforward to implement Moore and Mealy machines with 50+ states. The 20 LABs each provide 16 macro cells with shared local feedback, allowing efficient one-hot and binary state encoding without wasting logic. The deterministic 20 ns tPD and 100 MHz internal frequency ensure that even worst-case state transitions complete within budget. EEPROM configuration makes the device instantly ready at power-on, critical for safety interlocks and machine-tool controllers.

🧩

Embedded System Peripheral Expansion

The EPM9320RI208-20 is often used to expand the I/O capabilities of microcontrollers and embedded processors that lack sufficient native GPIO or peripheral interfaces. Its 208-pin RQFP package exposes a large number of user I/O pins that can be configured individually as input, output, or bidirectional, with TTL/CMOS-compatible thresholds directly matching 5-V microcontrollers. The 320 macro cells can implement PWM generators, quadrature decoders, SPI/I2C master/slave controllers, and UART channels on a single chip. The deterministic timing allows accurate PWM generation for motor control, and the JTAG ISP allows firmware updates without dismantling the end product.

🔄

Legacy System Modernization and Form-Fit Replacements

The EPM9320RI208-20 is widely used in legacy system modernization, particularly for industrial controls, medical devices, and aerospace systems built in the 1990s and 2000s, where the original Altera MAX 9000 design must be reproduced on a one-for-one basis. Its identical 208-pin RQFP footprint, JTAG-based ISP, and EEPROM configuration ensure that existing PCBs and design files can be supported without modification. Engineers can also migrate firmware from -20 speed grade to -15 or -10 speed grades without PCB changes, gaining timing margin while preserving the proven design. Industrial temperature grade and 5-V tolerance match the supply environment of legacy equipment.

What is the EPM9320RI208-20?
The EPM9320RI208-20 is a member of the Altera (now Intel) MAX 9000 family of CMOS EEPROM-based Complex Programmable Logic Devices, featuring 320 macro cells, 6,000 usable gates, and a 20 ns pin-to-pin propagation delay. According to the manufacturer datasheet, it is housed in a 208-pin RQFP package and operates from a single 5.0-V supply with in-system programmability via the built-in IEEE 1149.1 JTAG interface.
What is the operating voltage of EPM9320RI208-20?
The EPM9320RI208-20 operates from a single 5.0-V VCC supply, making it directly compatible with TTL and 5-V CMOS logic families common in legacy industrial designs. The datasheet specifies that VCC must rise monotonically during power-up, and the minimum DC input on user I/O pins is -0.5 V while dedicated input pins support -0.3 V.
How many macro cells and gates does the EPM9320RI208-20 have?
The EPM9320RI208-20 integrates 320 macro cells organized into 20 Logic Array Blocks (LABs) of 16 macro cells each, with a total of 6,000 usable gates available to the designer. The macro cells feed the Programmable Interconnect Array (PIA), which routes signals across the device with predictable timing.
What is the maximum operating frequency of the EPM9320RI208-20?
The EPM9320RI208-20 supports a maximum internal operating frequency of 100 MHz with a worst-case pin-to-pin propagation delay (tPD) of 20 ns. According to the MAX 9000 datasheet, the actual throughput depends on the design's register-to-register path and the interconnect usage, but the architecture is deterministic across all 320 macro cells.
Does EPM9320RI208-20 support in-system programming?
Yes, the EPM9320RI208-20 supports 5.0-V in-system programmability (ISP) through a built-in IEEE Std. 1149.1 JTAG interface, eliminating the need for a separate boot PROM. The JTAG pins TDI, TMS, TCK, and TDO are dedicated for boundary-scan and programming access, allowing field upgrades without removing the device from the board.
Where to buy EPM9320RI208-20 online?
The EPM9320RI208-20 is available as of 2026-09-13 through authorized distributors including DigiKey (part number EPM9320RI208-20-ND) and through independent distributors such as IC-Components, Jotrin, Veswin, and Lisleapex. Because the part is now obsolete, lead times can vary; XAIPART also provides quote-based sourcing for hard-to-find MAX 9000 family members.
What is the price of EPM9320RI208-20?
Pricing for the EPM9320RI208-20 as of 2026-09-13 starts at approximately $38.50 per unit at quantity 1, dropping to roughly $18.95 at 1,000 pieces based on distributor listings. Prices fluctuate due to the obsolete status; for current quotes consult DigiKey or independent distributors such as IC-Components and Jotrin.
Is EPM9320RI208-20 still in production?
No, the EPM9320RI208-20 is listed as obsolete on current distributor and manufacturer product pages. The MAX 9000 family has been superseded by newer Altera/Intel CPLD families such as MAX II, MAX V, and MAX 10. Remaining inventory is available through authorized distributors and the independent/open-market channel only.
What is the difference between EPM9320RI208-20 and EPM9320RI208-15?
The EPM9320RI208-20 and EPM9320RI208-15 share the same MAX 9000 architecture, 320 macro cells, and 208-pin RQFP package, but differ in propagation delay - the -20 suffix denotes a 20 ns tPD, while the -15 denotes a 15 ns tPD (approximately 25% faster). They are pin-to-pin compatible within the same package; choose the -15 for higher-speed designs where the faster timing fits the timing budget.
What is the difference between EPM9320RI208-20 and EPM9320RC208-20?
The EPM9320RI208-20 is the industrial-temperature variant in a 208-pin RQFP package, while the EPM9320RC208-20 is the commercial-temperature variant in the same 208-pin RQFP package; both share identical 20 ns tPD, 320 macro cells, and 6,000 gates. They are pin-to-pin drop-in replacements, but the RI variant supports a wider industrial temperature range than the RC variant.
When should I choose EPM9320RI208-20 over EPM9320RI208-10?
Choose the EPM9320RI208-20 for designs where a 20 ns tPD is acceptable and cost is the primary driver; choose the EPM9320RI208-10 when timing closure demands a 10 ns propagation delay (approximately 50% faster). Both share the same 208-pin RQFP footprint and 320 macro cells, making the speed grade the only meaningful engineering trade-off.
What is the best drop-in replacement for EPM9320RI208-20?
The best drop-in pin-compatible replacements for the EPM9320RI208-20 are other MAX 9000 family members in the same 208-pin RQFP package with 320 macro cells, such as EPM9320RI208-10 (faster 10 ns tPD), EPM9320RI208-15 (15 ns tPD), and EPM9320RC208-20 (commercial temperature grade). All share identical pinout, footprint, and 6,000 usable gates.
Where can I download the EPM9320RI208-20 datasheet PDF?
The official EPM9320RI208-20 datasheet PDF can be downloaded from Altera's archive mirror at https://www.alterasemi.com/datasheet/alterasemi/EPM9320RI208-20.pdf, with additional summary specifications available on DigiKey's product page at https://www.digikey.com/en/products/detail/altera/EPM9320RI208-20/4162036. The datasheet includes the Operating Requirements for Altera Devices section covering absolute maximum ratings and JTAG specifications.
Where can I find the EPM9320RI208-20 pinout?
The EPM9320RI208-20 pinout is documented in the MAX 9000 Device Family datasheet and shows 208 pins arranged in a Power Quad Flat Pack (RQFP) configuration with pin 1 indicated by the standard surface-mount marker. The four dedicated low-skew global input pins are clearly distinguished from user I/O pins in the datasheet pin map.
What are the key specifications of EPM9320RI208-20 that engineers should know?
Key specifications for the EPM9320RI208-20 include 320 macro cells organized in 20 LABs, 6,000 usable gates, 20 ns pin-to-pin propagation delay, 100 MHz maximum internal operating frequency, 5.0-V single-supply operation, 4 dedicated low-skew global input pins, JTAG-based 5.0-V in-system programmability per IEEE 1149.1, and a 208-pin RQFP industrial-temperature package. The MAX 9000 architecture provides deterministic timing and EEPROM non-volatile configuration with instant-on behavior.
What is the best Intel equivalent for EPM9320RI208-20?
Within the Intel/Altera portfolio, the closest equivalent is any MAX 9000 family member in the same 208-pin RQFP package with 320 macro cells, such as EPM9320RI208-10 (faster speed grade), EPM9320RI208-15 (intermediate speed grade), or EPM9320RC208-20 (commercial temperature). For new designs, modern alternatives include the MAX II EPM240 and MAX V 5M240ZE100, though these require PCB redesign due to package and pinout differences.

工程参考数据: EPM9320RI208-20 ——对比、设计指导和合规信息。

选型指南

Choose the EPM9320RI208-20 when designing a 5-V industrial system that requires 320 macro cells, 6,000 gates, and a 20 ns pin-to-pin delay - it is the standard speed grade and most cost-effective option in the MAX 9320 family. Choose the EPM9320RI208-10N or EPM9320RI208-15 when timing margins demand 10 ns or 15 ns tPD respectively (timing-critical state machines >25 MHz). Choose the EPM9320RC208-20 only for commercial-temperature environments where industrial-grade screening is unnecessary. For new designs, consider migrating to the MAX II EPM240 or MAX V 5M240ZE100 series, which offer non-volatile configuration, lower power, and modern I/O standards, but require PCB redesign due to package and pinout differences.

与替代料对比

参数 本产品 EPM9320RI208-10N EPM9320RI208-15 EPM9320RC208-20 EPM9320RC208-20N EPM9320RC208-15N
Brand Intel Intel Intel Intel Intel Intel
Package 208-pin RQFP 208-pin RQFP - same 208-pin RQFP - same 208-pin RQFP - same 208-pin RQFP - same 208-pin RQFP - same
Propagation Delay (tPD) 20 ns 10 ns 15 ns 20 ns 20 ns 15 ns
Macrocells 320 320 320 320 320 320
Usable Gates 6,000 6,000 6,000 6,000 6,000 6,000
Supply Voltage 5.0 V 5.0 V 5.0 V 5.0 V 5.0 V 5.0 V
Operating Temperature Industrial Industrial Industrial Commercial Commercial Commercial
In-System Programmability Yes (JTAG IEEE 1149.1) Yes (JTAG) Yes (JTAG) Yes (JTAG) Yes (JTAG) Yes (JTAG)
Lead-Free (N suffix) No Yes (N suffix) No No Yes (N suffix) Yes (N suffix)

关键差异点

  • Industry-standard 5-V CPLD with EEPROM non-volatile configuration (对比 EPM9320RI208-10N)
  • Industrial temperature grade vs commercial grade (对比 EPM9320RC208-20)
  • Largest MAX 9000 device in 208-pin RQFP (对比 EPM7256SQC208-10)

设计说明

The EPM9320RI208-20 operates from a single 5.0-V VCC supply and the datasheet requires that VCC rise monotonically during power-up to ensure proper EEPROM configuration load. Place decoupling capacitors (0.1 uF ceramic in parallel with 10 uF tantalum or low-ESR electrolytic) as close as possible to every VCC pin on the package to minimize supply noise. There are typically 11 VCC and 11 GND pins distributed around the 208-pin RQFP perimeter for optimal power distribution. Estimated: typical VCCIO current consumption for the EPM9320 family is 100-300 mA depending on toggle rate and output loading, so the regulator should be sized with at least 30% headroom.

The 208-pin RQFP package requires careful PCB layout because of its high pin count (0.5 mm pitch) and gull-wing leads. Use 4-layer PCB stack-up with continuous power and ground planes; route signal traces on inner layers for controlled impedance where needed. The four dedicated global input pins (GCLK1, GCLK2, OE1/OE2, CLR1/CLR2) should be routed with matched trace lengths to minimize clock skew across the device. Estimated: the exposed thermal pad is not present on RQFP packages, so thermal management relies on copper pour around the perimeter.

JTAG boundary-scan integrity is essential for in-system programming of the EPM9320RI208-20. Ensure TDI, TMS, TCK, and TDO traces are kept short and free of stubs; add 10 kohm pull-ups on TDI, TMS, and TCK to prevent floating state during power-up. The minimum DC input voltage on user I/O pins is -0.5 V (and -0.3 V on dedicated inputs) - inputs may undershoot to -2.0 V for periods shorter than 20 ns under no-load conditions, but this must not be exceeded. Place series termination resistors on long JTAG chains to suppress ringing.

A common pitfall when designing with the EPM9320RI208-20 is assuming sufficient macro cells remain after synthesis - the design must fit within 320 macro cells and the available PIA routing. Always run a Quartus or MAX+PLUS II fitter report to confirm 100% utilization is achievable; pin-to-pin tPD of 20 ns only holds when the design is fully routed. The -20 speed grade is the slowest in the MAX 9320 family; do not use it for designs requiring >25 MHz register-to-register timing. Use the EPM9320RI208-10 (10 ns tPD) instead for high-frequency state machines or high-speed bus bridges.

合规信息

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
无铅
No
无卤
Unknown
冲突矿物
Unknown

Lead-free status depends on -N suffix variant. The base EPM9320RI208-20 is non-N (with lead). RoHS and REACH compliance not explicitly stated in the verified web data - mark as unknown per data authenticity rules.

数据核验日期: 2026-09-13 ——数据由 XAIPART 元器件工程团队核验和整理

相关搜索

EPM9320RI208-20 EPM9320RI208-20 datasheet Intel EPM9320RI208-20 MAX 9000 CPLD 320 macro cells 208-pin RQFP CPLD 5V EPM9320RI208-20 industrial automation EPM9320RI208-20 vs EPM9320RI208-10 EPM9320RI208-20 drop-in replacement buy EPM9320RI208-20 EPM9320RI208-20 pinout Altera MAX 9000 obsolete CPLD MAX 9320 20ns tPD EEPROM CPLD EPM9320RI208-20 JTAG programming

相关元器件 & 术语

Intel Altera EPM9320RI208-20 EPM9320RI208-10N EPM9320RI208-15 EPM9320RC208-20 MAX 9000 CPLD Complex Programmable Logic Device EEPROM JTAG IEEE 1149.1 RQFP-208 Power Quad Flat Pack macro cell Programmable Interconnect Array PIA Logic Array Block LAB 5.0V supply TTL compatible industrial temperature grade in-system programmability glue logic address decoding state machine
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