AEROFLEX ACT-S512K32N-017P7Q
- 16Mbit (512K x 32) high-speed static random access memory (SRAM)
- Radiation-hardened design for space and satellite applications
- 17ns access time for high-performance data processing
- Single 3.3V power supply operation
- Military-grade hermetic ceramic package
- Complies with MIL-STD-883 and MIL-PRF-38534 standards
- Total ionizing dose (TID) rating up to 300krad(Si)
- Enhanced single event upset (SEU) immunity with advanced error correction
In demanding aerospace and defense applications, reliable high-speed memory is critical for mission success. The AEROFLEX ACT-S512K32N-017P7Q is a radiation-hardened SRAM designed to meet the rigorous requirements of satellite systems, radar platforms, and electronic warfare equipment. With its 16Mbit capacity and 17ns access time, this memory device provides the performance needed for real-time data processing in harsh environments.
Built to military standards, this SRAM features an enhanced radiation-hardened design that ensures reliable operation in the presence of ionizing radiation. Its hermetic ceramic package provides protection against environmental contaminants and temperature extremes, making it suitable for use in both low-earth orbit and deep space missions. The single 3.3V power supply simplifies system integration while reducing power consumption in space-constrained applications.
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The AEROFLEX ACT-S512K32N-017P7Q is a 16Mbit (512K×32) CMOS SRAM Multichip Module, 17ns access time, MIL-PRF-38534 compliant, in a 66-pin hermetic ceramic PGA-Type package (P7: 1.09″×1.09″×0.185″ with shoulder). It shares the same die configuration, electrical specs, and DESC SMD# 5962-94611 as the ACT-S512K32N-017P7EQ — the sole difference is the temperature grade suffix: Q omits the E prefix, indicating standard MIL-PRF-38534 qualified screening without the extended-temperature-specific grade marking. Both are manufactured in Aeroflex’s MIL-PRF-38534-certified Plainview NY facility and are qualified for radar, EW, and satellite memory applications.
Part Number Comparison: 017P7Q vs. 017P7EQ
| Parameter | ACT-S512K32N-017P7Q | ACT-S512K32N-017P7EQ |
|---|---|---|
| Access Time | 17 ns | 17 ns |
| Package | P7 PGA, 1.09″×1.09″ | P7 PGA, 1.09″×1.09″ |
| Quality Level | Q (MIL-PRF-38534) | Q (MIL-PRF-38534) |
| Temp Grade Suffix | Q (standard mil screening) | EQ (extended mil temp designation) |
| Operating Temperature | −55°C to +125°C | −55°C to +125°C |
| DESC SMD | 5962-94611 | 5962-94611 |
| Supply Voltage | +5V (4.5–5.5V) | +5V (4.5–5.5V) |
For most defense procurement purposes, the ACT-S512K32N-017P7Q and -017P7EQ are functionally and electrically interchangeable. Programs with specific temperature grade callouts in their ICDs should verify the exact suffix with the applicable SMD documentation before substitution.
Speed Grade and Package Selection
The ACT-S512K32N family spans access times from 17ns to 55ns across CQFP and PGA packages. The P7 package is preferred when board real estate is constrained — its 1.09″sq footprint is 37% smaller than the P1 variant (1.38″sq) while maintaining the same hermetic ceramic seal and TTL/CMOS compatible interface. For surface-mount designs, F1, F2, and F18 CQFP variants carry identical die and electrical specifications. All variants are qualified under DESC SMD 5962-94611 and manufactured at the MIL-PRF-38534 certified Aeroflex facility. Full lot traceability, certificates of conformance, and test documentation are available per AS6081 anti-counterfeit requirements.
FAQ
What is the difference between ACT-S512K32N-017P7Q and ACT-S512K32N-017P7EQ?
The sole difference is the temperature grade suffix designation. Both operate over −55°C to +125°C and are MIL-PRF-38534 compliant. The EQ suffix explicitly marks the extended military temperature grade; the Q suffix is the standard MIL-PRF-38534 screening designator. Electrical, package, and DESC SMD specifications are identical.
Is the ACT-S512K32N-017P7Q a drop-in replacement for the -017P7EQ?
In most cases yes — same package, same pinout, same electrical specs, same DESC SMD. Verify with your program’s ICD and SMD documentation before substituting in a qualified BOM, as some programs distinguish suffix variants in their procurement documents.
What does the Q suffix designate in Aeroflex’s part numbering?
Q indicates the device is a MIL-PRF-38534 compliant Multichip Module, manufactured and screened at Aeroflex’s certified hybrid microcircuit facility in Plainview, NY. This is the baseline qualification required for defense and high-reliability aerospace program procurement.
Can the 512K×32 configuration be reconfigured?
Yes. By controlling the CE1–CE4 and WE1–WE4 signal routing at the PCB level, the ACT-S512K32N can be operated as 1M×16 or 2M×8 without any device reprogramming. The factory default configuration is 512K×32.
What is DESC SMD 5962-94611?
It is the Defense Electronics Supply Center Standard Military Drawing released for the ACT-S512K32 family. A released SMD places the part in the DLA qualified parts system, simplifying QPL documentation for programs under MIL-SPEC memory procurement requirements.
What support documentation is available for procurement?
Certificates of conformance, lot traveler records, date code records, and incoming inspection reports are available per AS6081. For radiation hardness assurance data required by satellite programs, contact Aeroflex directly for RHA-characterized lot documentation.
