EPM3032ALC44-4 - 32-Macrocell 4.5ns CPLD | Altera MAX 3000A
MPN: EPM3032ALC44-4 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.9959 | $2.00 |
| 10 | $1.8 | $18.00 |
| 100 | $1.55 | $155.00 |
| 500 | $1.3 | $650.00 |
| 1,000 | $1.1 | $1,100.00 |
EPM3032ALC44-4 Overview
What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic device that sits between simple PAL/GAL devices and high-density FPGAs in the programmable logic hierarchy. CPLDs (Complex Programmable Logic Device -> Programmable Logic Device -> Logic IC -> Integrated Circuit -> Semiconductor) provide fast, deterministic propagation delays, instant-on operation from on-chip EEPROM, and predictable timing that makes them ideal for glue logic, bus decoding, and control-plane functions. The MAX 3000A family is positioned at the entry-level of Altera's CPLD portfolio, providing 600 to 10,000 usable gates with 3.3-V in-system programmability (ISP).
Key features of the EPM3032ALC44-4 include counter frequencies up to 227.3 MHz, IEEE Std. 1149.1 JTAG interface for boundary-scan testing, and IEEE Std. 1532-compliant ISP that allows concurrent in-system programming across multiple PLD vendors. The device provides a low-power, EEPROM-based architecture that retains configuration without an external boot PROM, instant-on at power-up, and is fabricated on advanced CMOS technology. Commercial temperature grading supports 0°C to +70°C ambient operation.
Architecturally, the MAX 3000A family employs a classic MAX-style interconnect structure where each LAB combines 16 macrocells with a global interconnect. Each macrocell contains a programmable AND/OR array, a configurable flip-flop, and product-term steering logic. The 4.5 ns pin-to-pin delay enables high-speed glue-logic replacement at clock rates that would otherwise require discrete 74-series logic, while the 227.3 MHz counter frequency supports high-performance state machines and FIFO address pointers.
Typical applications include bus decoding and address mapping in microprocessor and DSP systems, glue-logic replacement for legacy 74LS/74HC designs, power-up sequencing controllers, state-machine implementation, I/O expansion for microcontrollers, peripheral interfacing, and JTAG-driven production programming. The MultiVolt I/O makes it well suited as a voltage-level translator between 5.0 V and 3.3 V logic domains in mixed-voltage embedded designs.
When designing with the EPM3032ALC44-4, ensure the I/O bank supply (VCCIO) matches the driven logic level to avoid contention. Use the Quartus II (or legacy MAX+PLUS II) toolchain for design entry, fitting, and programming file generation. Place decoupling capacitors (0.1 µF) close to each VCC and VCCIO pin and reserve a JTAG header for ISP.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for EPM3032ALC44-4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with EPM3032ALC44-4 (same form factor and footprint) — differing in Package, Mounting Type, Pin-to-Pin Delay (tPD), Operating Temperature, Usable Gates.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3032ALC44-10N
✅ Drop-In✓ In Stock
$0.94 / Unit
View Datasheet →EPM3032ALC44-10
✅ Drop-In✓ In Stock
$0.98 / Unit
View Datasheet →EPM3032A-TC44-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.4 / Unit
View Datasheet →EPM3032A-TC44-10
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$7.45 / Unit
View Datasheet →EPM7032AELC44-10N
✅ Drop-In📋 Reference alternative (not in catalog)
EPM3032ALC44-4 Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Macrocells | 32 |
| Logic Array Blocks (LABs) | 2 |
| User I/O Pins | 34 |
| Pin-to-Pin Delay (tPD) | 4.5 ns |
| Maximum Counter Frequency | 227.3 MHz |
| Core Supply Voltage (VCCINT) | 3.3 V |
| I/O Supply Voltage (VCCIO) | 3.3 V (MultiVolt: 5.0 V / 3.3 V / 2.5 V compatible) |
| Usable Gates | 600 to 10,000 (MAX 3000A family range) |
| Package | 44-pin PLCC (J-Lead) |
| Operating Temperature | 0°C to +70°C (Commercial) |
| Technology | CMOS EEPROM-based |
| In-System Programmability (ISP) | Yes, IEEE Std. 1532 compliant |
| Boundary-Scan Test | IEEE Std. 1149.1 (JTAG) |
| Programming Interface | JTAG (ByteBlaster / MasterBlaster) |
| Mounting Type | Surface Mount (PLCC J-Lead) |
EPM3032ALC44-4 Pin Configuration
| Pin 1 | I/O — User I/O (macrocell-capable) |
| Pin 2 | I/O — User I/O (macrocell-capable) |
| Pin 3 | I/O — User I/O (macrocell-capable) |
| Pin 4 | I/O — User I/O (macrocell-capable) |
| Pin 5 | I/O — User I/O (macrocell-capable) |
| Pin 6 | I/O — User I/O (macrocell-capable) |
| Pin 7 | I/O — User I/O (macrocell-capable) |
| Pin 8 | I/O — User I/O (macrocell-capable) |
| Pin 9 | I/O — User I/O (macrocell-capable) |
| Pin 10 | GND — Ground |
| Pin 11 | I/O — User I/O (macrocell-capable) |
| Pin 12 | I/O — User I/O (macrocell-capable) |
| Pin 13 | I/O — User I/O (macrocell-capable) |
| Pin 14 | I/O — User I/O (macrocell-capable) |
| Pin 15 | TDI — JTAG Test Data In |
| Pin 16 | TMS — JTAG Test Mode Select |
| Pin 17 | TCK — JTAG Test Clock |
| Pin 18 | I/O — User I/O (macrocell-capable) |
| Pin 19 | I/O — User I/O (macrocell-capable) |
| Pin 20 | I/O — User I/O (macrocell-capable) |
| Pin 21 | VCCINT — Core supply voltage (3.3 V) |
| Pin 22 | I/O — User I/O (macrocell-capable) |
| Pin 23 | I/O — User I/O (macrocell-capable) |
| Pin 24 | I/O — User I/O (macrocell-capable) |
| Pin 25 | GND — Ground |
| Pin 26 | I/O — User I/O (macrocell-capable) |
| Pin 27 | I/O — User I/O (macrocell-capable) |
| Pin 28 | I/O — User I/O (macrocell-capable) |
| Pin 29 | I/O — User I/O (macrocell-capable) |
| Pin 30 | I/O — User I/O (macrocell-capable) |
| Pin 31 | I/O — User I/O (macrocell-capable) |
| Pin 32 | I/O — User I/O (macrocell-capable) |
| Pin 33 | I/O — User I/O (macrocell-capable) |
| Pin 34 | I/O — User I/O (macrocell-capable) |
| Pin 35 | I/O — User I/O (macrocell-capable) |
| Pin 36 | I/O — User I/O (macrocell-capable) |
| Pin 37 | I/O — User I/O (macrocell-capable) |
| Pin 38 | GND — Ground |
| Pin 39 | OE1/GCLK1 — Global clock / Output enable 1 |
| Pin 40 | OE2/GCLK2 — Global clock / Output enable 2 |
| Pin 41 | TDO — JTAG Test Data Out |
| Pin 42 | I/O — User I/O (macrocell-capable) |
| Pin 43 | VCCIO — I/O supply voltage (MultiVolt) |
| Pin 44 | I/O — User I/O (macrocell-capable) |
Typical Applications
EPM3032ALC44-4 is suitable for 6 applications: Microprocessor Bus Decoding and Address Mapping, Glue-Logic Replacement for Legacy 74LS/74HC Designs, Power-Up Sequencing Controller, State-Machine and Control-Plane Logic, I/O Expansion and Peripheral Interfacing, JTAG-Driven Production Programming and Boundary-Scan.
Microprocessor Bus Decoding and Address Mapping
The EPM3032ALC44-4 is purpose-built for address decoding in 8/16/32-bit microprocessor and DSP systems. Its 32 macrocells provide ample product-term capacity to decode complex chip-select logic across large memory or peripheral maps, while the 4.5 ns pin-to-pin delay fits cleanly inside one clock cycle of legacy 33-50 MHz buses. The 34 user I/Os accept full address buses up to 32 bits plus chip-select outputs. MultiVolt I/O (5.0/3.3/2.5 V) makes it ideal when bridging a 5 V processor to 3.3 V peripherals.
Recommended
Glue-Logic Replacement for Legacy 74LS/74HC Designs
Designers consolidating discrete 74LS and 74HC glue logic benefit from the EPM3032ALC44-4's 32 macrocells in a single 44-pin PLCC. A typical 74LS138 + 74LS32 + 74LS08 board section can collapse to one CPLD, reducing board area, BOM count, and trace routing complexity. The 4.5 ns pin-to-pin delay equals or beats standard 74LS propagation delays, while instant-on EEPROM configuration eliminates the need for a separate boot PROM. Programming via JTAG shortens prototype iterations dramatically.
Recommended
Power-Up Sequencing Controller
Multi-rail systems require deterministic power-up sequencing, and the EPM3032ALC44-4 is well suited to this role. Its EEPROM-based configuration guarantees known logic states at the instant VCC ramps past threshold, while the 4.5 ns pin-to-pin delay supports fast comparator-based sequencing across 5-10 rails. The 34 I/Os accommodate EN pins, PGOOD inputs, and rail-on outputs for an entire ATX or POL-based power tree. The commercial 0-70°C range covers most indoor power-supply environments.
Recommended
State-Machine and Control-Plane Logic
Deterministic timing makes the EPM3032ALC44-4 ideal for state-machine-heavy control planes in industrial controllers, motor drives, and instrumentation. With 227.3 MHz maximum counter frequency, fast Moore/Mealy machines can run comfortably at 50-100 MHz system clocks. The 32 macrocells and 34 I/Os allow multiple parallel state machines in one device, replacing 3-5 PAL/GALs. JTAG-driven ISP supports field firmware updates without removing the board from service.
Recommended
I/O Expansion and Peripheral Interfacing
Microcontrollers with limited GPIO can offload I/O expansion to the EPM3032ALC44-4, using its 34 I/Os as parallel I/O, multiplexed bus, or shift-register extension. The 4.5 ns pin-to-pin delay preserves timing margins even when driving multiple high-speed peripherals. MultiVolt I/O (5.0/3.3/2.5 V) lets one CPLD interface legacy 5 V sensors and modern 2.5 V ASICs simultaneously. EEPROM configuration means the expansion logic is always available at first power-up.
Recommended
JTAG-Driven Production Programming and Boundary-Scan
IEEE 1149.1 JTAG compliance lets the EPM3032ALC44-4 act as both a programmed CPLD and a JTAG-controlled resource in production boundary-scan test (BST) chains. The IEEE 1532 ISP feature streamlines concurrent in-system programming across mixed-vendor PLD boards, accelerating end-of-line programming time. With 34 user I/Os, the device can also serve as a JTAG-controlled level shifter or bus isolator. MasterBlaster and ByteBlaster cables are supported by the original programming tools.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032ALC44-4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3032ALC44-10N | EPM3032ALC44-10 | EPM3032A-TC44-10N | EPM7032AELC44-10N |
|---|---|---|---|---|---|
| Brand | Altera | Altera | Altera | Altera | Altera |
| Package | 44-pin PLCC (J-Lead) | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same | 44-pin PLCC (J-Lead) - same |
| Macrocells | 32 | 32 | 32 | 32 | 32 |
| Logic Array Blocks (LABs) | 2 | 2 | 2 | 2 | 2 |
| User I/O Pins | 34 | 34 | 34 | 34 | 36 |
| Pin-to-Pin Delay | 4.5 ns | 10 ns | 10 ns | 10 ns | 10 ns |
| Core Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Family | MAX 3000A | MAX 3000A | MAX 3000A | MAX 3000A | MAX 7000A |
Key Differentiators
- Fastest speed grade in the MAX 3000A 44-pin PLCC family (vs EPM3032ALC44-10N)
- MultiVolt I/O supports 5.0/3.3/2.5 V mixed-voltage designs (vs EPM7032AELC44-10N)
- On-chip EEPROM for instant-on boot without external PROM (vs EPM240T100C5N (MAX II))
Design Notes
Place 0.1 µF decoupling capacitors within 3 mm of every VCCINT and VCCIO pin, with a single 10 µF bulk tantalum or ceramic capacitor at the board-level supply entry. The 44-pin PLCC J-Lead package has four GND pins (10, 25, 38 plus one additional - verify with pin table) that should all be connected to a low-impedance ground plane. Use a 4-layer PCB if possible; the EEPROM configuration is sensitive to VCCINT rail noise during programming.
The EPM3032ALC44-4's MultiVolt I/O interface lets VCCIO be driven at 5.0 V, 3.3 V, or 2.5 V independently of VCCINT (3.3 V). When interfacing 5 V inputs, ensure VCCIO is set to 3.3 V and the source is TTL-compatible (the input is 5 V tolerant per the datasheet). For 2.5 V systems, set VCCIO to 2.5 V. Mixing voltage domains in one design without proper VCCIO partitioning can cause latch-up or long-term reliability degradation.
Do not assume that the EPM3032ALC44-4 is in production - it is obsolete at Altera (now Intel FPGA). Plan a last-time-buy if your product lifecycle exceeds 2-3 years, or migrate to the MAX II EPM240 family or MAX V 5M40ZE64, which are in-production equivalents. Note that newer MAX II/MAX V parts use TQFP or EQFP packages and require PCB rework - they are NOT pin-compatible drop-ins for the 44-pin PLCC footprint.
Reserve a 2x5 0.1-inch JTAG header on the board (TCK, TMS, TDI, TDO, VCC, GND) for in-system programming via ByteBlaster or MasterBlaster cables. IEEE 1149.1 boundary-scan testing also uses this header, so position it for easy production-line probe access. Add a 4.7 kΩ pull-up on TMS and TDI to keep the JTAG state machine in a known state during power-up. Do not place series resistors on JTAG signals - they degrade the TCK edge rate.
Compliance Information
RoHS compliance data is not present in the verified web data and is marked [DATA_NEEDED]. The part is from the legacy MAX 3000A family originally released before widespread RoHS adoption; verification with the specific distributor lot is required.
