ST offers the highest flexibility with a large set of 8 and 16-bit ESCC or QML-V qualified rad-hard buffers.
Rad-hard 8-bit bus interfaces
The 8-bit bus interfaces include a variety of inverting and non-inverting bus interfaces, drivers and transceivers, as well as flip-flops, some with latches or 3-state outputs. Part of the HC/HCT and AC/ACT Logic series, they include most generic references such as 240, 244, 245, 373, 374, and 574.
Like all logic products, the manufacture of all these bus buffers has been transferred to ST's proprietary Singapore 6'' fab, securing the lifetime of the products for many years.
QML-V 16-bit bus interfaces
The 16-bit bus interfaces are the 16-bit counterparts of the most commonly used 8-bit references, i.e. 16244, 16245, 16373 and 16374, in AC, ACT and VCX series. The later series feature very short propagation time by using high-end CMOS technology, and dedicated design and layout rules. The objectives are to sustain a very good stability in total-ionizing-dose (TID) up to 300 krad(Si) as well as an excellent immunity to heavy ions up to 120 MeV.cm²/mg linear energy transfer (LET), with compatibility with 5V, 3V, 2.5V, and 1.8V JEDEC I/O levels.
A complete ecosystem
Available in ceramic hermetic packages, all QML-V or ECSS qualified devices come with an ecosystem that includes complete datasheets, application notes, SMD or ESCC specifications, and radiation test reports (upon request) as well as PSpice and IBIS models. AC/ACT and VCX devices are available in versions with grounded lids, complying with the newest design rules for Space applications.
- 54AC540 Rad-Hard Octal Buffer/Line Driver 3-State
- 54AC541 Rad-Hard Octal Bus Buffer 3-state
- 54ACT541 Rad-Hard Octal Bus Buffer 3-state
- 54ACT240 Rad-Hard Octal Bus Buffer 3-state Inverter
- M54HC540 Rad-Hard Octal Bus Buffer 3-State Inverter
- M54HC240 Rad-Hard Octal Bus Buffer 3-State Inverter
- 54AC240 Rad-Hard Octal Bus Buffer 3-state Inverter
- 54AC244 Rad-Hard Octal Bus Buffer 3-state
- 54ACT244 Rad-Hard Octal Bus Buffer 3-state
- 54VCXH162244 Rad-Hard 16-bit Transceiver Non Inverting
- M54HC244 Rad-Hard Octal Bus Buffer 3-State
- 54VCXH162374 Rad-Hard 16-bit D-Type Flip-Flop 3-state
- 54VCXH162373 Rad-Hard 16-bit D-Type Latch 3-state
- M54HC541 Rad-Hard Octal Bus Buffer 3-State
- M54HCT244 Rad-Hard Octal Bus Buffer 3-State
- 54VCXHR162245 Rad-Hard 16-bit Transceiver Non Inverting with Resistor
- 54VCXH162245 Rad-Hard 16-bit Transceiver 3-state Non Inverting
