8080A-1 Datasheet | Intel

infel.. 8080A/8080A-1/8080A-2 8-BIT N-CHANNEL MICROPROCESSOR - TTL Drive Capability - 2,..,s (-1:1.3,..,s, -2:1.5 ,..,s) Instruction Cycle - Powerful Problem Solving Instruction Set - 6 General Purpose Registers and an Accumulator - 16-Blt Program Counter for Directly Addressing up to 64K Bytes of Memory - 16-Blt Stack Pointer and Stack Manipulation Instructions for Rapid Switching of the Program Environment - Decimal, Binary, and Double Precision Arithmetic - Ability to Provide Priority Vectored Interrupts 512 Directly Addressed 110 Ports - Available In EXPRESS - - Standard Temperature Range - Available In 4Q-Lead Cerdlp and Plastic Packages (See Packaging Spec. Order #231369) - The Intel 8080A is a plete 8-bit parallel central processing unit (CPU). It is fabricated on a single LSI chip using Intel's n-channel silicon gate MOS process. This offers the user a high performance solution to control and processing applications. The 8080A contains 6 8-bit general purpose working registers and an accumulator. The 6 general purpose registers may be addressed individually or in pairs providing both single and double precision operators. Arithmetic and logical instructions set or reset 4 testable flags. A fifth flag provides decimal arithmetic operation. The 8080A has an external stack feature wherein any portion of memory may be used as a last in/first out stack to store/retrieve the contents of the accumulator, flags, program counter, and all of the 6 general purpose registers. The 16-bit stack pointer controls the addressing of this external stack. This stack gives the 8080A the ability to easily handle multiple level priority interrupts by rapidly storing and restoring processor status. It also provides almost unlimited subroutine nesting. This microprocessor...