Cd4093 Chinese information

Probe for domestic switch needle KG-300K has a needle head diameter of 3.0mm, typically used as an open switch needle.

Crystal oscillator component.

Quartz Oscillator 3225 20M OSC.

The CD4093 consists of four 2-input Schmitt trigger circuits. Each circuit is a 2-input NAND gate with Schmitt trigger functionality on both inputs. Each gate opens and closes at different points on the rising and falling edges of the signal. The difference between the rising voltage (V

sub>P)T and the falling voltage (V

sub>N) is known as the hysteresis voltage (â–³V

sub>T).

CD4093 Pin Diagram

CD4093 Pin Functions:

E - Data Input Terminal, J - Data Output Terminal, B - Data Input Terminal, F - Data Input Terminal, K - Data Output Terminal, C - Data Input Terminal, G - Data Input Terminal, L - Data Output Terminal, D - Data Input Terminal, H - Data Input Terminal, M - Data Output Terminal, VDD - Positive Power Supply, VSS - Ground.

Absolute Maximum Ratings:

DC Supply Voltage (VDD): -0.5 to +18 V
DC Input Voltage (VIN): -0.5 to VDD +0.5 V
Storage Temperature Range (TS): -65°C to +150°C
Power Dissipation (PD): Dual-In-Line Normal Double Row Package: 700 mW
Small Outline Package: 500 mW
Lead Temperature Soldering Temperature (TL): 260°C (Soldering, 10 seconds).

Recommended Operating Conditions:

DC Supply Voltage (VDD): 3 to 15 V
DC Input Voltage (VIN): 0 to VDD V
Operating Temperature Range (TA): -40°C to +85°C

DC Electrical Characteristics:

Symbol

Parameter

Conditions -40°C +25°C +85°C

Units

Typically Min Max Min Max Min Max

IDD - Quiescent Device Current (VDD = 5V): 1.0 1.0 7.5 μA

VOL - LOW Level Output Voltage (VIN = VDD, |IO| < 1μA): VDD = 5V: 0.05 0 0.05 0.05 V

VOH - HIGH Level Output Voltage (VIN = VSS, |IO| < 1μA): VDD = 5V: 4.95 4.95 5 4.95 V

VT- - Negative-Going Threshold Voltage (Any Input): VDD=5V, VO =4.5V: 1.3 2.25 1.5 1.8 2.25 1.5 2.3 V

VT+ - Positive-Going Threshold Voltage (Any Input): VDD = 5V, VO = 0.5V: 2.75 3.6 2.75 3.3 3.5 2.65 3.5 V

VH - Hysteresis (VT+ - VT-): VDD = 5V: 0.5 2.35 0.5 1.5 2.0 0.35 2.0 V

IOL - LOW Level Output Current: VDD=5V, VO =0.4V: 0.52 0.44 0.88 0.36 mA

IOH - HIGH Level Output Current: VDD=5V, VO =4.6V: -0.52 0.44 -0.88 -0.36 mA

IIN - Input Current: VDD=15V, VIN = 0V: -0.3 -10

sup>-5 -0.3 -1.0 μA

AC Electrical Characteristics:

Symbol

Parameter

Conditions

Minimum Typical Maximum

Units

tPHL, tPLH - Propagation Delay Time: VDD = 5V: 300 450 ns

tTHL, tTLH - Transition Time: VDD = 5V: 90 145 ns

CIN - Input Capacitance (Any Input): 5.0 7.5 pF

CPD - Power Dissipation Capacitance (Per Gate): 24 pF

Typical Application Circuit:

Negative Edge Trigger

Positive Edge Trigger

Controlled Oscillator

Application Circuit: Touch Switch

This circuit is primarily made up of a four-two input NAND gate integrated circuit CD4093. A NAND gate (1, 2, 3, IC1), combined with R1 and C1, forms a 400Hz square wave oscillator. The square wave output of this oscillator is split into two paths: one path is directly sent to a NAND circuit (4, 5, 6 feet, IC2); the other path is sent to a NAND gate (8, 9, 10, IC3) via a capacitor C2. Since IC2 is configured as a NOT gate, its input and output potentials are 180° out of phase, and the signal output from IC2 is coupled to the other input of IC3 via C3 and C4. Because the levels of the two inputs of IC3 are the same but the phase is opposite, as long as IC1 oscillates normally, at least one of the two inputs of IC3 will be at a low level, resulting in a stable high-level output from IC3. Due to the action of C6, VT1 is turned off. However, if the input signal of any input of IC3 is canceled or the amplitude of the signal is reduced below the input start level of the gate, IC3 will output a square wave signal. When a conductor approaches the sensing electrode, part of the signal coupled by C2 to the input pin 9 of IC3 is shunted to ground. If the amplitude of the signal after shunting is lower than the threshold level of the NAND gate, IC3 will output a square wave signal. After the signal is rectified by VD1 and VD2, the switching tube VT1 is turned on, and the power of the relay is turned on to make it close. Capacitor C4 is the sensitivity adjustment capacitor. If the circuit needs to work with maximum sensitivity, you can adjust C4 to make the relay just pick up, then adjust C4 to make the relay just disconnect, then seal C4 with high frequency wax or insulating paint.