CD40109 contains four low-to-high-voltage level-shifting circuits. Each circuit will shift a low-voltage digital-logic input signal (A, B, C, D) with logical 1 = V_CC and logical 0 = V_SS to a high-voltage output signal (E, F, G, H) with logical 1 = V_DD and logical 0 = V_SS. The RCA-CD40109, unlike other low-to-high level-shifting circuits, does not require the presence of the high-voltage supply (V_DD) before the application of either the low-voltage supply (V_CC) or the input signals. There are no restrictions on the sequence of application of V_DD, V_CC, or the input signals. In addition, with one exception there are no restrictions on the relative magnitudes of the supply voltages or input signals within the device maximum ratings, provided that the input signal swings between V_SS and at least 0.7 V_CC; V_CC may exceed V_DD, and input signals may exceed V_CC and V_DD. When operated in the mode V_CC > V_DD, the CD40109 will operate as a high-to-low level-shifter. The CD40109 also features individual three-state output capability. A low level on any of the separately enabled three-state output controls produces a high-impedance state in the corresponding output.

The CD40106 device consists of six Schmitt-Trigger inputs. Each circuit functions as an inverter with Schmitt-Trigger input. The trigger switches at different points for positive- and negative-going signals. The difference between the positive-going voltage (V_P) and the negative-going voltages (V_N) is defined as hysteresis voltage (V_H). The CD40106 device is supplied in ceramic packaging (J) as well as standard packaging (D, N, NS, PW). All CD40106 devices are rated for –55°C to +125°C ambient temperature operation.

CD4008 types consist of four full adder stages with fast look ahead carry provision from stage to stage. Circuitry is included to provide a fast “parallel-carry-out” but to permit high-speed operation in arithmetic sections using several CD4008's. CD4008 inputs include the four sets of bits to be added, A1 to A4 and B1 to B4, in addition to the “Carry In” bit from a previous section. CD4008 outputs include the four sum bits, S1 to S4. In addition to the high speed “parallel-carryout” which may be utilized at a succeeding CD4008 section.

CD4007 IC is comprised of three n-channel and three p-channel enhancement-type MOS transistors. The transistor elements are accessible through the package terminals to provide a convenient means for constructing the various typical circuits. More complex functions are possible using multiple packages. Numbers shown in parentheses indicate terminals that are connected together to form the various configurations listed. The CD4007 types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes).