Spansion Inc. · Memory > NOR Flash
AM29F040B-70JF
AMD 4 Mbit (512K × 8) 5.0V NOR flash memory, uniform sectors, 70 ns
Part NumberAM29F040B-70JF
ManufacturerSpansion Inc.
LifecycleObsolete
AvailabilityAvailable to order — request a quote
Specifications
TechnologyNOR Flash
Density4 Mbit
Organization512K×8
InterfaceParallel
Supply Voltage5.0V
Erase ArchitectureSector erase
Sector ArchitectureUniform sectors
Access Time70 ns
NSN5962-01-609-4761 (NSN)
Federal Item NameMICROCIRCUIT,MEMORY
Operating Temp Range-40.0 TO 85.0 CELSIUS
Voltage Rating5.0 VOLTS NOMINAL TOTAL SUPPLY
Terminals32 PIN
Enclosure ConfigurationLEADED CHIP CARRIER
Special Features512K X 8-BIT; 5.0V READ, PROGRAM, AND ERASE
Memory Device TypeRAM
Memory Capacity512K X 8-BIT
Time Rating Per Chacteristic70.0 NANOSECONDS MINIMUM READ-WRITE CYCLE
Federal Supply Class5962 — Microcircuits, Electronic
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is AM29F040B-70JF available?
We can source AM29F040B-70JF even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is AM29F040B-70JF by Spansion Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If AM29F040B-70JF has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like AM29F040B-70JF?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for AM29F040B-70JF?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.