EPM9320RI208-20C - 320-Macrocell MAX 9000 CPLD, 5V, 208-RQFP | Intel
MPN： EPM9320RI208-20C ✗ 停產EPM9320RI208-20C 概覽
What is a CPLD? A Complex Programmable Logic Device (CPLD) is a non-volatile programmable logic IC that combines the architectural simplicity and deterministic timing of classic PLDs with the density of small FPGAs. It sits in the broader taxonomy: programmable logic -> CPLD -> MAX 9000 family -> non-volatile logic. CPLDs are commonly used for glue logic, bus interfacing, address decoding, and state-machine control where deterministic propagation delay and instant-on (no boot time) behavior are required.
Key features include 320 macrocells with 484 flip-flops, 16 logic array blocks (LABs), a Programmable Interconnect Array (PIA), per-macrocell user-configurable register modes (D, T, JK, SR), and a JTAG-compliant boundary-scan test interface. The device supports industry-standard design entry through Altera's MAX+PLUS II development system with VHDL, Verilog HDL, and AHDL synthesis. The 208-pin RQFP package provides ample I/O for bus-intensive designs and is footprint-compatible with the broader EPM9320 208-pin variants.
Architecturally, the MAX 9000 family uses an enhanced EEPROM-based logic element that combines a product-term array with a programmable register, fed into a global interconnect. The PIA routes any LAB output to any other LAB input, providing deterministic, fixed-delay routing independent of logic placement. This guarantees a stable tPD of 20 ns across all logic paths, simplifying timing closure.
Typical applications include bus bridge and protocol translation in telecom backplanes, industrial control glue logic with address decoding, peripheral I/O expansion for microcontrollers, JTAG-driven manufacturing test fixtures, and legacy 5V system glue logic where deterministic timing and instant-on boot are required. Industrial temperature grade is supported.
When designing with this device, ensure the 5.0 V VCC supply rises monotonically at power-up to avoid EEPROM programming lockouts. Provide adequate decoupling (0.1 uF + bulk) on each VCC pin pair, and respect the JTAG TCK/TMS/TDI/TDO pull-up and pull-down recommendations in the datasheet.
This page synthesizes distributor pricing for the EPM9320RI208-20C, pin-compatible drop-in alternatives in the same RQFP-208 footprint, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 EPM9320RI208-20C — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： EPM9320RI208-20C （相同外形與佔位） — 差異在於 Package, In-System Programmability, Device Type, Supply Voltage, Logic Array Blocks (LABs).
EPM9320RC208-20N
✅ 直接替換聯絡詢價
查看資料表 →EPM9320RC208-20
✅ 直接替換聯絡詢價
查看資料表 →EPM9320RI208-10N
✅ 直接替換聯絡詢價
查看資料表 →EPM9320RC208-15N
✅ 直接替換聯絡詢價
查看資料表 →EPM9320RC208-15
✅ 直接替換聯絡詢價
查看資料表 →EPM9320RI208-20C 最大額定值與電氣特性
| Family | MAX 9000 |
| Device Type | EE PLD / CPLD |
| Logic Elements / Macrocells | 320 |
| Usable Gates | 6,000 |
| Number of Flip-Flops | 484 |
| Logic Array Blocks (LABs) | 16 |
| Maximum Internal Clock Frequency | 100 MHz |
| Pin-to-Pin Propagation Delay (tPD) | 20 ns |
| Supply Voltage (VCCINT/VCCIO) | 5.0 V |
| I/O Voltage Tolerance | 3.3 V or 5.0 V |
| Programmable Interface | JTAG (IEEE Std. 1149.1) BST |
| In-System Programmability | Yes (5.0 V ISP via JTAG) |
| Technology | CMOS EEPROM |
| 封裝 | 208-pin RQFP (Plastic Quad Flat Pack) |
| Operating Temperature (Industrial) | -40C to +85C |
| 安裝類型 | Surface Mount |
EPM9320RI208-20C 腳位配置
| 腳位 1 | I/O — User I/O pin (per MAX 9000 pinout table) |
| 腳位 2 | I/O — User I/O pin |
| 腳位 3 | I/O — User I/O pin |
| 腳位 4 | I/O — User I/O pin |
| 腳位 5 | GND — Ground |
| 腳位 6 | I/O — User I/O pin |
| 腳位 7 | I/O — User I/O pin |
| 腳位 8 | I/O — User I/O pin |
| 腳位 9 | TDI — JTAG Test Data In (dedicated) |
| 腳位 10 | TMS — JTAG Test Mode Select (dedicated) |
| 腳位 11 | TCK — JTAG Test Clock (dedicated) |
| 腳位 12 | I/O — User I/O pin |
| 腳位 13 | I/O — User I/O pin |
| 腳位 14 | I/O — User I/O pin |
| 腳位 15 | I/O — User I/O pin |
| 腳位 16 | GND — Ground |
| 腳位 17 | I/O — User I/O pin |
| 腳位 18 | I/O — User I/O pin |
| 腳位 19 | I/O — User I/O pin |
| 腳位 20 | I/O — User I/O pin |
典型應用
EPM9320RI208-20C 適用於 6 應用s: Bus Bridge and Protocol Translation, Industrial Control Glue Logic, Peripheral I/O Expansion for Microcontrollers, JTAG-Driven Manufacturing Test Fixtures, Legacy 5V System Glue Logic, State-Machine Control in Telecom Backplanes.
Bus Bridge and Protocol Translation
Why EPM9320RI208-20C fits: the 320 macrocells and 484 flip-flops provide ample capacity to bridge 8/16/32-bit buses and to translate between legacy 5V TTL and 3.3 V LVTTL protocols on telecom backplanes. How it is used: typically placed between a microprocessor bus and a peripheral bus, with each macrocell implementing one bit of decode or direction control. The deterministic 20 ns tPD keeps bus-to-bus latency bounded; the 208-pin RQFP supplies the I/O count for wide parallel interfaces. A 5V to 3.3V level-shifting cap is unnecessary because the I/Os are already 3.3 V/5 V tolerant.
推薦
Industrial Control Glue Logic
Why EPM9320RI208-20C fits: industrial temperature grade (-40C to +85C), deterministic 20 ns propagation delay, and EEPROM non-volatile boot make it ideal for factory-floor glue logic. How it is used: the CPLD decodes address lines, multiplexes discrete I/O, and drives relay/MOSFET predrivers in PLCs and motor-control boards. Instant-on behavior removes boot latency, critical for safety interlocks. The JTAG ISP allows in-field firmware updates on assembled boards, reducing service calls.
推薦
Peripheral I/O Expansion for Microcontrollers
Why EPM9320RI208-20C fits: 320 macrocells and 208 user I/O pins let the CPLD add many peripheral channels beyond what the host MCU offers natively, without loading the MCU firmware. How it is used: the CPLD sits on the MCU's external bus, with each macrocell implementing one register, PWM, UART, or GPIO. The deterministic 20 ns tPD allows the MCU to read/write the expansion registers in a single cycle, effectively extending the MCU's I/O count by 100+ channels.
推薦
JTAG-Driven Manufacturing Test Fixtures
Why EPM9320RI208-20C fits: the built-in IEEE 1149.1 JTAG boundary-scan interface and 5V ISP allow fixture designers to reuse the same device both as a control element and as a boundary-scan chain node. How it is used: in bed-of-nails test fixtures and ATE interfaces, the CPLD generates test vectors, captures responses, and routes them to the JTAG controller. 484 flip-flops provide plenty of registered capture points, and the JTAG TAP is accessible in-system for fixture self-test.
推薦
Legacy 5V System Glue Logic
Why EPM9320RI208-20C fits: a single 5.0 V supply, 3.3 V or 5 V tolerant I/O, and a non-volatile EEPROM boot image keep it compatible with vintage 5V microprocessor designs where 3.3 V-only CPLDs cannot operate. How it is used: replaces discrete 74LS/74F glue-logic in VME bus, Multibus, and STD-32 systems. 320 macrocells easily absorb what used to be a board full of small-scale integration; the 208-pin RQFP keeps the board area similar. JTAG ISP allows firmware updates on legacy systems that cannot be reflashed.
推薦
State-Machine Control in Telecom Backplanes
Why EPM9320RI208-20C fits: deterministic 20 ns pin-to-pin delay makes it ideal for state machines that must respond to asynchronous events within a fixed window, such as T1/E1 framer control, line-card reset sequencers, and clock-distribution state machines. How it is used: each macrocell hosts a portion of a Moore/Mealy machine with D/T/JK/SR flip-flop modes, all clocked from a single global clock at up to 100 MHz. The 5V-tolerant I/O interfaces cleanly to ECL/TTL line-driver ICs of the same era.
推薦
推薦產品摘要
工程參考資料，適用於 EPM9320RI208-20C — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | EPM9320RC208-20N | EPM9320RC208-20 | EPM9320RI208-10N | EPM9320RC208-15N | EPM9320RC208-15 |
|---|---|---|---|---|---|---|
| Brand | Altera (now Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (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 |
| Macrocells | 320 | 320 | 320 | 320 | 320 | 320 |
| Pin-to-Pin tPD | 20 ns | 20 ns | 20 ns | 10 ns | 15 ns | 15 ns |
| Max Clock Frequency | 100 MHz | 100 MHz | 100 MHz | 125 MHz | 111 MHz | 111 MHz |
| Supply Voltage | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V | 5.0 V |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Commercial (0C to +70C) |
| In-System Programmability | Yes (JTAG IEEE 1149.1) | Yes (JTAG IEEE 1149.1) | Yes (JTAG IEEE 1149.1) | Yes (JTAG IEEE 1149.1) | Yes (JTAG IEEE 1149.1) | Yes (JTAG IEEE 1149.1) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
主要差異化特點
- Industrial temperature grade with deterministic 20 ns tPD (對比EPM9320RC208-20N)
- In-system programmability via JTAG (對比EPM9320GC280-15 (non-ISP variant))
- 320 macrocells in 208-pin RQFP (對比EPM9320LC84-15 (smaller package))
設計說明
The EPM9320RI208-20C requires a single 5.0 V VCC supply that must rise monotonically at power-up to avoid EEPROM programming lockouts. Provide one 0.1 uF ceramic decoupling capacitor on every VCC pin pair and at least one 10 uF bulk tantalum or ceramic capacitor near the package. The MAX 9000 datasheet specifies that during input transitions, signals may undershoot to -2.0 V or overshoot to 7.0 V for periods under 20 ns under no-load conditions - clamp with series resistors if long cables are involved.
Place JTAG header (TCK, TMS, TDI, TDO) within 5 cm of the device with no stubs on the TCK line. Use 10 kohm pull-ups on TMS and TDI, and a 10 kohm pull-down on TCK as recommended by the MAX 9000 family datasheet. The 208-pin RQFP (0.5 mm pitch) requires fine-pitch PCB layout - use 4-layer stackup with continuous ground plane under the device to minimize ground bounce on simultaneous switching outputs.
Do not apply 5 V signals to the device before VCC reaches its minimum operating threshold - the EEPROM ISP charge pump requires VCC to be valid. Do not exceed 20 ns input undershoot/overshoot durations longer than 20 ns without external clamping. When migrating designs from EPM9320ARC208-10 (10 ns tPD) to the slower RI208-20C variant, re-time any path that previously met its budget at the edge of the 10 ns spec.
合規資訊
RoHS, REACH, and lead-free status were not confirmed from the verified web data; the MAX 9000 family predates widespread RoHS adoption. AEC-Q100 not applicable (CPLD, not an automotive-qualified IC by default).