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It added a signed overflow bit to the status register (bit 3). Status register bits 4 and 5 provided read-only access to the high 2 bits of the 10-bit program counter. The instruction set is mostly the same as the 12-bit PIC with the address field enlarged. However, the 8-bit immediate instructions gain an additional opcode bit.
8-bit binary counter, output registers three-state 16 SN74LS590: 74x591 1 8-bit binary counter, output registers open-collector 16 SN74LS591: 74x592 1 8-bit binary counter, input registers 16 SN74LS592: 74x593 1 8-bit binary counter, input registers three-state 20 SN74LS593: 74x594 1 8-bit shift registers, serial-in, parallel-out, output ...
The following is a list of CMOS 4000-series digital logic integrated circuits.In 1968, the original 4000-series was introduced by RCA.Although more recent parts are considerably faster, the 4000 devices operate over a wide power supply range (3V to 18V recommended range for "B" series) and are well suited to unregulated battery powered applications and interfacing with sensitive analogue ...
A very early CD4029A counter IC, in 16-pin ceramic dual in-line package (DIP-16), manufactured by RCA Colorized IC die and schematics of CD4011BE NAND gateThe 4000 series was introduced as the CD4000 COS/MOS series in 1968 by RCA [1] as a lower power and more versatile alternative to the 7400 series of transistor-transistor logic (TTL) chips.
The final important element in the CPU is the program counter (PC) register. The PC is a 16-bit binary counter whose low 15 bits specify the address in instruction memory of the next instruction for execution. Unless directed otherwise by a branching instruction, the PC increments its value at the end of each clock cycle.
A circuit decade counter using JK Flip-flops (74LS112D) A decade counter counts in decimal digits, rather than binary. A decade counter may have each (that is, it may count in binary-coded decimal, as the 7490 integrated circuit did) or other binary encodings. A decade counter is a binary counter designed to count to 1001 (decimal 9).
These instructions are also available in 32-bit mode, in which they operate on 32-bit registers (eax, ebx, etc.) and values instead of their 16-bit (ax, bx, etc.) counterparts. The updated instruction set is grouped according to architecture ( i186 , i286 , i386 , i486 , i586 / i686 ) and is referred to as (32-bit) x86 and (64-bit) x86-64 (also ...
Has a built-in 8-bit input/output port and 256 bytes of internal static RAM. MOS 6509: Can address up to 1 MB of RAM as 16 banks of 64 KB and was used in the Commodore CBM-II series. MOS 6510: Has a built-in 6-bit programmable input/output port and was used in the Commodore 64. The 8500 is effectively an HMOS version of the 6510, and replaced ...