ATmegaS128 is the space market version of the popular Microchip AVR® ATmega128. The space qualified version of this part adds: Ceramic & hermetic package, extended temperature range -55C to 125C, extended qualification flow according to QML-V or QML-Q space grade flow.  Radiation performance for the ATmegaS128 are:  SEL LET > 62.5 MeV.cm2/mg lead to latch up immune, SEU LET > 3 MeV.cm2/mg and TID up to 30 Krad (Si).

High-performance, low-power AVR 8-bit microcontroller with advanced RISC architecture

32 × 8 General Purpose Working Registers + Peripheral Control Registers

Up to 8MIPS throughput at 8MHz

On-chip 2-cycle multiplier

128KBytes of In-System Self-programmable Flash program memory, with 4KBytes EEPROM and 4KBytes Internal SRAM

Optional Boot Code Section with Independent Lock Bits In-System

Programming by On-chip Boot Program

True Read-While-Write Operation

SPI Interface for In-System Programming JTAG (IEEE std. 1149.1 Compliant) Interface

Boundary-scan Capabilities According to the JTAG Standard

Extensive On-chip Debug Support

53 Programmable I/O Lines   –  64-lead Ceramic Quad Flat Package (CQFP64)   –  64-lead Thin Profile Plastic Quad Plat Package (TQFP64)

Temperature:  -55°C to +125°C Speed Grades

Radiation Tolerance:  No Single Event Latch-up below a LET threshold of 62.5 MeV/mg/cm2 @ 125°C; tested up to a total ionizing dose of 30 krads(Si) according to MIL-STD-883 Method 1019

ESD better than 2000V HBM / 750V CDM