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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 ...
The 4000 series is a CMOS logic family of integrated circuits (ICs) first introduced in 1968 by RCA. [1] It was slowly migrated into the 4000B buffered series after about 1975. [ 2 ] It had a much wider supply voltage range than any contemporary logic family (3V to 18V recommended range for "B" series).
1 8-bit bidirectional CMOS-to-TTL level converter 40195 Shift Registers 1 4-bit universal shift register: 40240 1 Buffer/Line driver; inverting, three-state outputs 40244 [10] 1 Buffer/line driver; non-inverting, three-state outputs 40245 1 Octal bus transceiver, three-state outputs 40373 [11] Latches 1 Octal D-type transparent latch, three ...
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The first CMOS family of logic integrated circuits was introduced by RCA as CD4000 COS/MOS, the 4000 series, in 1968. Initially CMOS logic was slower than LS-TTL. However, because the logic thresholds of CMOS were proportional to the power supply voltage, CMOS devices were well-adapted to battery-operated systems with simple power supplies.
CMOS had been available since the early 1970s; RCA introduced the COSMAC processor using CMOS in 1975. [43] Whereas earlier systems used a single transistor as the basis for each "gate", CMOS used a two-sided design, essentially making it twice as expensive to build.
HCMOS ("high-speed CMOS") is the set of specifications for electrical ratings and characteristics, forming the 74HC00 family, a part of the 7400 series of integrated circuits. [ 1 ] The 74HC00 family followed, and improved upon, the 74C00 series (which provided an alternative CMOS logic family to the 4000 series but retained the part number ...
CMOS was initially slower than NMOS logic, thus NMOS was more widely used for computers in the 1970s. [33] The Intel 5101 (1 kb SRAM) CMOS memory chip (1974) had an access time of 800 ns, [36] [37] whereas the fastest NMOS chip at the time, the Intel 2147 (4 kb SRAM) HMOS memory chip (1976), had an access time of 55/70 ns.