EPM3032ALC44-7 - 32-Macrocell CPLD, 7.5ns, 44-PLCC | Altera
MPN: EPM3032ALC44-7 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.51 | $1.51 |
| 10 | $1.36 | $13.60 |
| 100 | $1.21 | $121.00 |
| 500 | $1.09 | $545.00 |
| 1,000 | $0.95 | $950.00 |
Drop-in alternatives for EPM3032ALC44-7 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EPM3032ALC44-4N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.32 / Unit
View Datasheet →EPM3032ALC44-10N
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.94 / Unit
View Datasheet →EPM3032ALC44-4
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.1 / Unit
View Datasheet →EPM3032ALC44-10
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.98 / Unit
View Datasheet →EPM3032ALC44-7N
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →EPM3064ALC44-10
✅ Drop-In✓ In Stock
$4.12 / Unit
View Datasheet →EPM3032ALC44-7 Maximum Ratings & Electrical Characteristics
| Family | MAX 3000A |
| Device Type | CPLD (Complex Programmable Logic Device) |
| Logic Elements / Macrocells | 32 macrocells |
| Logic Array Blocks (LABs) | 2 |
| System Gates | 600 |
| Number of User I/O Pins | 34 |
| Global Clocks | 2 |
| Propagation Delay (tPD1, max) | 7.5 ns |
| Maximum Internal Frequency (fMAX) | 138.9 MHz |
| Supply Voltage (VCCINT / VCCIO) | 3.3 V |
| I/O Tolerant Voltage | 2.5 V / 3.3 V / 5.0 V (MultiVolt) |
| Program Memory Type | EEPROM |
| In-System Programming (ISP) | Yes - IEEE 1149.1 JTAG |
| Operating Temperature | 0 °C to +70 °C (Commercial) |
| Package | 44-pin PLCC (J-Lead), 16.59 x 16.59 mm, 3.81 mm height |
| Mounting Type | Surface Mount |
| RoHS Status | Not Compliant (per Arrow listing) |
| Part Status | Obsolete |
| ECCN | EAR99 |
EPM3032ALC44-7 Pin Configuration
| Pin 1 | I/O — User I/O pin (bidirectional, MultiVolt) |
| Pin 2 | I/O — User I/O pin |
| Pin 3 | I/O — User I/O pin |
| Pin 4 | I/O — User I/O pin |
| Pin 5 | I/O — User I/O pin |
| Pin 6 | I/O — User I/O pin |
| Pin 7 | I/O — User I/O pin |
| Pin 8 | I/O — User I/O pin |
| Pin 9 | I/O — User I/O pin |
| Pin 10 | GND — Ground |
| Pin 11 | I/O — User I/O pin |
| Pin 12 | I/O — User I/O pin |
| Pin 13 | I/O — User I/O pin |
| Pin 14 | I/O — User I/O pin |
| 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 pin |
| Pin 19 | I/O — User I/O pin |
| Pin 20 | I/O — User I/O pin |
| Pin 21 | VCC — Supply voltage (3.3 V) |
| Pin 22 | I/O — User I/O pin |
| Pin 23 | I/O — User I/O pin |
| Pin 24 | I/O — User I/O pin |
| Pin 25 | I/O — User I/O pin |
| Pin 26 | I/O — User I/O pin |
| Pin 27 | GND — Ground |
| Pin 28 | I/O — User I/O pin |
| Pin 29 | I/O — User I/O pin |
| Pin 30 | I/O — User I/O pin |
| Pin 31 | GLOBAL_CLK1 — Global clock input 1 |
| Pin 32 | GLOBAL_CLK2 — Global clock input 2 / GCLK2 |
| Pin 33 | I/O — User I/O pin |
| Pin 34 | I/O — User I/O pin |
| Pin 35 | I/O — User I/O pin |
| Pin 36 | I/O — User I/O pin |
| Pin 37 | I/O — User I/O pin |
| Pin 38 | I/O — User I/O pin |
| Pin 39 | I/O — User I/O pin |
| Pin 40 | I/O — User I/O pin |
| Pin 41 | I/O — User I/O pin |
| Pin 42 | VCC — Supply voltage (3.3 V) |
| Pin 43 | I/O — User I/O pin |
| Pin 44 | TDO — JTAG Test Data Out |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
EPM3032ALC44-7 is suitable for 6 applications: Microprocessor Address Decoding & Chip-Select Generation, Bus Arbitration & Glue Logic Consolidation, Peripheral State-Machine Controllers, Reset Sequencer & Power-Supply Supervisor, Industrial Control & Legacy Interface Bridging, JTAG Boundary-Scan Test Controller.
Microprocessor Address Decoding & Chip-Select Generation
The EPM3032ALC44-7 is a classic choice for address decoding and chip-select generation in 8-bit, 16-bit, and 32-bit microprocessor and microcontroller systems. Its 7.5 ns pin-to-pin delay comfortably meets the 60-66 MHz bus timing of legacy 486, 68040, PowerPC, and embedded ARM7/ARM9 systems where deterministic propagation is more important than logic density. The 32 macrocells provide enough product terms to decode 8-12 address lines with overlapping chip-select windows, and the EEPROM-based configuration powers up already programmed - no boot PROM needed. With 34 user I/O pins available, the same device can serve 4-8 chip-select outputs plus reset, ready, and bus-error logic on a single 3.3 V rail.
Recommended
Bus Arbitration & Glue Logic Consolidation
The EPM3032ALC44-7 consolidates dozens of 74-series TTL/CMOS glue-logic packages (74LS138 decoders, 74LS245 transceivers, 74LS244 buffers, 74LS08 AND gates) into a single programmable device, reducing PCB area, BOM count, and inventory. Its 7.5 ns timing aligns with PCI, VME, ISA, and VXI backplane specifications, making it suitable for industrial bus adapters where deterministic arbitration and bus-request grant sequencing are required. The 34 I/O pins easily accommodate multi-master arbitration, bus-grant chains, and interrupt steering. EEPROM-based non-volatile storage means the design comes up in the correct state even after power cycling - critical for industrial systems that must boot reliably without operator intervention.
Recommended
Peripheral State-Machine Controllers
The EPM3032ALC44-7's product-term AND/OR macrocell architecture is purpose-built for implementing Moore and Mealy state machines that control peripherals such as UARTs, parallel ports, keypads, LCD interfaces, and stepper motor drivers. Each of the 32 macrocells holds a state register plus the next-state decode logic, and the 138.9 MHz fMAX supports state-machine clock rates up to 70 MHz externally with one clock per state transition. The 3.3 V core with 5.0 V tolerant MultiVolt I/O lets the device drive legacy 5 V peripherals directly without external buffers. Engineers commonly implement UART baud-rate generators, I2C/SPI master controllers, and quadrature decoder state machines in this part.
Recommended
Reset Sequencer & Power-Supply Supervisor
Multi-rail systems (CPU core, DDR memory, analog blocks, I/O rings) require precise power-up and power-down sequencing to prevent latch-up and bus contention. The EPM3032ALC44-7 is well suited as a reset and power-good sequencer: its 34 I/O pins can monitor 8-10 power-good signals and generate individually timed reset outputs for each rail. The 7.5 ns delay provides sub-microsecond response to brown-out events, and the non-volatile EEPROM storage ensures the sequencing order is preserved through power cycles. The commercial 0-70 °C temperature grade suits desktop and indoor industrial equipment; for outdoor or automotive use, migrate to the EPM3032A-TC44 industrial temperature variant.
Recommended
Industrial Control & Legacy Interface Bridging
Industrial PLCs, CNC controllers, and factory-automation subsystems still rely on legacy parallel and serial interfaces that benefit from programmable glue logic. The EPM3032ALC44-7 bridges between 5 V and 3.3 V logic thanks to its MultiVolt I/O, and its JTAG ISP allows field re-programming through a 4-wire header for firmware updates without removing the board. The 7.5 ns delay supports real-time control loops running at 50-100 kHz with deterministic response. The 44-PLCC package is socket-compatible, allowing easy field replacement in legacy systems where PLCC sockets are already designed in. Engineers use this part to implement H-bridge PWM timing, opto-isolated input debouncing, and step/direction pulse generation.
Recommended
JTAG Boundary-Scan Test Controller
The EPM3032ALC44-7 includes an IEEE 1149.1 JTAG interface that supports both in-system programming and boundary-scan testing. As a downstream JTAG controller it can chain multiple JTAG devices, generate test patterns, and isolate faulty nodes on densely populated boards. Its 34 I/O pins can implement TAP controllers, instruction registers, and bypass-multiplexer logic for multi-device scan chains. The non-volatile EEPROM storage means the boundary-scan personality loads instantly at power-up without interfering with the JTAG state machine. This role is especially valuable in production test fixtures for legacy boards where the original JTAG controller IC has been discontinued.
Recommended
Recommended Products Summary
Engineering reference data for EPM3032ALC44-7 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EPM3032ALC44-4N | EPM3032ALC44-10N | EPM3032ALC44-7N | EPM3064ALC44-10 |
|---|---|---|---|---|---|
| Brand | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) | Altera (Intel) |
| Package | 44-PLCC (J-Lead) | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same | 44-PLCC (J-Lead) - same |
| Macrocells | 32 | 32 | 32 | 32 | 64 |
| System Gates | 600 | 600 | 600 | 600 | 1250 |
| Pin-to-Pin Delay (tPD1) | 7.5 ns | 5 ns (faster) | 10 ns (slower) | 7.5 ns (identical) | 10 ns (slower) |
| User I/O Pins | 34 | 34 | 34 | 34 | 34 |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Lead Finish / RoHS | SnPb / Not RoHS | Lead-free (N suffix) / RoHS | Lead-free (N suffix) / RoHS | Lead-free (N suffix) / RoHS | SnPb / Not RoHS |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Balanced speed-grade choice in the MAX 3000A family (vs EPM3032ALC44-10N)
- Lower logic density preserves timing headroom and lower power (vs EPM3064ALC44-10)
- Non-volatile EEPROM vs SRAM-based alternatives (vs Xilinx XC9500XL series)
- Legacy PLCC package enables field-replacement of existing designs (vs Modern TQFP MAX II (EPM240T100C5N))
Design Notes
Estimated: at 3.3 V VCC with all 34 I/O pins switching at 50 MHz with 20 pF load each, the dynamic supply current reaches roughly 80-120 mA. Place one 0.1 µF ceramic decoupling capacitor within 5 mm of each of the two VCC pins (21 and 42) plus one 10 µF tantalum bulk capacitor near the supply entry point. The two GND pins (10 and 27) must both be connected to a low-impedance ground plane. A ferrite bead on VCC can reduce switching-noise injection into adjacent analog sections.
The 44-PLCC package has typical lead inductance of 5-8 nH which limits useful bandwidth to about 100 MHz. For clock-distribution applications above 50 MHz, route clocks on inner PCB layers with controlled impedance (50 Ω microstrip) and keep clock traces shorter than 50 mm. The two dedicated global clock inputs (GCLK1 / GCLK2) should be used for any signal that drives more than 16 macrocells - normal I/O pins used as clocks introduce skew that the global clock tree avoids.
Do not leave the four JTAG pins (TDI, TDO, TMS, TCK) floating. The MAX 3000A JTAG state machine has internal pull-ups, but external pull-ups of 10 kΩ to VCC are recommended if the JTAG port is not used in production, otherwise ESD events or board noise can latch the TAP into an undefined state and disrupt normal user-mode operation. TCK must be tied LOW through 10 kΩ if JTAG is unused to prevent unintended clocking of the TAP. Unused user I/O pins should be left unconnected (floating); the device enables internal weak pull-ups on these pins during JTAG programming.
Sockets are highly recommended for 44-PLCC CPLDs in development and field-service applications because the J-lead package is awkward to rework and the obsolete part status may force board-level replacement. Use machine-pin PLCC sockets (e.g. 3M 8444-21B1-RK or equivalent) with gold-plated contacts. For production volumes, consider migrating to a TQFP-100 MAX II device such as the EPM240T100C5N, which uses standard SMT reflow and offers higher logic density at comparable cost.
Compliance Information
RoHS non-compliant per Arrow Electronics product listing (lead-finish is SnPb). Part is marked Obsolete. For RoHS-compliant production, use the lead-free N-suffix variant (EPM3032ALC44-7N) or migrate to a MAX II device. REACH compliance inferred from manufacturer declaration; no specific data available in verified web data.
