IDT39C11B

FEATURES: Low-power CMOS -Commercial - 45mA (max.) -Military - 55mA (max.) Fast -A versions meet standard speeds -8 versions are 20% speed upgrades 9-Deep stack -Accommodates nested loops and subroutines Cascadable -Infinitely expandable in 4-bit increments Available in 28-pin DIP/LCC (IDT39C09) and 20-pin DIP/LCC (IDT39C11) Pin-compatible, functional enhancement for all versions of the 2909/2911 Military product available 100% screened to MIL-STD-883, Class 8 The IDT39C09/11 devices are high-speed, 4-bit address sequencers intended for controlling the sequence of microinstructions located in the microprogram memory. They are fully cascadable and can be expanded to any increment of 4 bits. The IDT39C09s can select an address from any four sources: 1) external direct inputs (D); 2) external data from the R inputs, stored in an internal register; 3) a 9-word deep push-pop stack; or 4) a program counter register. Also included in the stack are additional contr...