555 Timer IC The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The ic 555 can be used to provide time delays, as an oscillator, and as a flip-flop element. Derivatives provide up to four timing circuits in one package. These 555 timer ICs are precision timing circuits capable of producing accurate time delays or oscillations. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor. The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by the use of the control voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground. The output circuit is capable of sinking or sourcing current up to 200 mA. The operation is specified for supplies of 5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs. The NE555 is characterized for operation from 0°C to 70°C. This is characterized for operation from –40°C to 85°C. The NE555 is characterized for operation over the full military range of –55°C to 125°C. Features of the 555 timers are: Supply voltage between 4.5 and 18 volts. supply current 3 to 6 mA, and a Rise/Fall time of 100 nSec. IC 555 pin diagram The IC 555 is used in many circuits, for example, a One-shot pulse generator in Monostable mode as an Oscillator in Astable Mode or in Bistable mode to produce a flip/flop type action. It is also used in many types of other circuits for the achievement of various purposes for instance Pulse Amplitude Modulation (PAM), Pulse Width Modulation (PWM), etc. This IC 555 can be configured to use as a monostable multivibrator, an astable multivibrator. If you want to use this 555 timer ic in your projects, there are a few essential components that are helpful are breadboard or vero board , switch , jumper wires , resistors , capacitors and batteries . Features: Adjustable Duty Cycle. Precision timing circuits capable of producing accurate time delays or oscillations. Can be configured as a monostable multivibrator, astable multivibrator, or in bistable mode. Features a control voltage terminal to alter threshold and trigger levels. RESET input for initiating a new timing cycle. Rise/Fall time of 100 nSec. Applications: The IC 555 is used for Tone generation. It is used to make an alarm circuit. They are also used for frequency division applications. The IC 555 is used as a relaxation oscillator. They are also used in digital counter circuits. IC 555 is widely used for electronics projects. Also check 8 Pin DIP IC Socket Base Adaptor available on the Iotcart website. it is designed for 8-pin integrated circuits (ICs) commonly used in electronic devices like timers, oscillators, and digital logic circuits. The socket has a molded notch for proper orientation, making it easy to insert and remove ICs

CMOS 8-Input NAND/AND Gate IC - CD4068 The CD4068 CMOS 8-Input NAND/AND gate IC (Integrated Circuits) provides the system designer with direct implementation of the positive logic 8-Input NAND and AND functions and supplements the existing family of CMOS gates. The CD4x Series CD4068 is an 8-Input NAND/AND Gate CMOS logic-based IC belonging to a CD4000 series of integrated circuits. Firstly, Two output options are available such as AND and NAND gate. Secondly, the same input pins deliver both logical functions. It is available in a variety of packages which includes 14-pin PDIP, GDIP, PDSO. The typical operating voltage of the IC is +5V, but it can also be operated +10V and +15V. It has a standard symmetric output. This IC is useful for applications requiring low power. Furthermore, it offers a wide voltage operating range. check out : CMOS Hex Buffers/Converter IC - CD4009 Pinout: Pinout of CD4068

Divide by 8 Counter/Divider IC - CD4022 The CD4022 IC is a 4-stage divide-by-8 Johnson counter with 8 decoded outputs and a carry-out bit. These counters are cleared to their zero counts by a logical ‘‘1’’ on their reset line. These counters are advanced on the positive edge of the clock signal when the clock enable signal is in the logical ‘‘0’’ state. The configuration of the CD4x Series CD4022 permits medium-speed operation and assures a hazard-free counting sequence. The 10/8 decoded outputs are normally in the logical ‘‘0’’ state and go to the logical ‘‘1’’ state only at their respective time slot. Each decoded output remains high for 1 full clock cycle. The carry-out signal completes a full cycle for every 10/8 clock input cycle and is used as a ripple to carry the signal to any succeeding stages. check out : 8-bit Up/Down Binary Counter IC - CD40193 Pinout: Pinout of CD4022 IC

CMOS Hex Buffers/Converter IC - CD4009 CD4009 Hex Buffer/Converters may be used as CMOS to TTL or DTL logic-level converters or CMOS high-sink-current drivers. The CD4009 types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix). check out : CMOS 8-Input NAND/AND Gate IC - CD4068 Applications: CMOS to DTL/TTL hex converter CMOS current "sink" or "source" driver CMOS high-to-low logic-level converter Multiplexer — 1 to 6 or 6 to 1 check out : Hex Buffer/Converter IC - CD4010

16-Channel Analog Multiplexer/Demultiplexer IC - CD4067 CD4067 CMOS analog multiplexers/demultiplexers are digitally controlled analog switches having low ON impedance, low OFF leakage current, and internal address decoding. In addition, the ON resistance is relatively constant over the full input-signal range. The CD4067 is a 16-channel multiplexer with four binary control inputs, A, B, C, D, and an inhibit input, arranged so that any combination of the inputs selects one switch. A logic “1” present at the inhibit input turns all channels off. The CD4067 type are supplied in 24-lead hermetic dual-in-line ceramic packages (F3A suffix), 24-lead dual-in-line plastic packages (E suffix), 24-lead small-outline packages (M, M96, and NSR suffixes), and 24-lead thin shrink small-outline packages (P and PWR suffixes). check out : CD4066 - Quad Bilateral Switch IC Applications: Analog and digital multiplexing and demultiplexing A/D and D/A conversion Signal gating

CD4094 - 8-Stage Shift and Store Bus Register IC The CD4094 IC belongs to the CD4000 IC series. This IC is composed of an 8-bit shift register and a 3- State 8-bit latch. In this IC, Data shifted serially through the shift register on the positive transition of the clock. The CD4082 IC operates at a wide range of working voltage, a wide range of working conditions. And directly interfaces with CMOS, NMOS, and TTL. The output of the IC always comes in TTL which makes it quite easy to function with other TTL devices and microcontrollers. CD4094 offers features such as ESD barring and high noise immunity. Each output is protected against static damage by using clamping diodes. CD4094 Operates at a supply voltage of range between 3V to 20V. This IC is designed for operation over the full military temperature range of 0°C to 70°C. The IC CD4094 comes as smaller in size and offers much faster speed which makes it highly reliable in every kind of device. CD4094 IC can be soldered directly to the circuit board or easily mounted on a 16 pin IC base. Shift-and-Store Bus Register is designed as a digital memory circuitry available in devices such as calculators, computers, and data processing systems. Using a Shift-and-Store Bus Register, data or bits enter into the system in a serial or parallel manner. Data entry is performed from one direction, and as more data is added, it shifts positions until the data gets to the output end. The two ends are referred to as the left and right ends. Whereas the movement of data occurs from left to right, from right to left. Or in both directions to make a bidirectional register. check out : CD4099 - 8 bit Addressable Latch IC Pinout: Pinout of CD4094 - 8-Stage Shift and Store Bus Register IC Applications: Serial-to-Parallel data conversion Remote control holding register Dual rank shift, hold, and bus register

CD4040 - 12-Stage Ripple Carry Binary Counter IC The CD4x Series CD4040 is a ripple-carry binary counter that features 12 stages, push-pull type, and balanced outputs, with standard speed (TPD > 50ns). All counter stages are master-slave flip-flops. Supports wide input voltage ranges from 3V to 18V. The maximum input current at 18V is 1 uA whereas 100 nA at 18V and 25°C. All counter stages are master-slave flip-flops. The state of a counter advances one count on the negative transition of each input pulse; a high level on the RESET line resets the counter to its all-zeros state. Schmitt's trigger action on the input-pulse line permits unlimited rise and fall times. All inputs and outputs are buffered. 16 Pin DIP is available in a hermetic dual-in-line ceramic package. We also have a CD4020 with similar features. The differences are CD4020 is a 14 Stage binary counter whereas CD4040 is a 12 Stage binary counter and there is a difference between the pin layout. check out : CD4518 - Dual BCD Up Counter IC (Original) Pinout: Pinout of CD4040 IC Applications: Control Counters Timers Frequency Dividers Time-Delay Circuits

Mastech MS2001C AC Digital Clamp Meter Mastech MS2001 Digital AC/DC Clamp Meter is a handheld 3 1/2 digital clamp meter for measuring DC and AC voltage, AC current, Resistance, Diode and Continuity Test with battery operated.  Mastech Clamp meters are used by electricians, sometimes with the clamp incorporated into a general purpose multimeter. It is simple to measure very high currents (hundreds of amperes) with the appropriate current transformer. Check replaceable fuses ; Please make sure to connect the testing wires to right terminals ; Select the appropriate range of measurement (that is selecting the measurement range from highest to smallest if the range is unknown). check out : MECO-603 Digital Multimeter

CD4081 - Quad 2 Input AND Gate IC CD4081 Quad 2 Input AND gates IC provides the system designer with direct implementation of the AND function and supplements the existing family of CMOS gates. The CD4081 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). check out : CD4532 - 8 Bit Priority Encoder IC (Original) Pinout: Pinout Of CD4081 IC check out : CD4030 - Quad 2-Input Exclusive OR (EXOR) Gate IC

CD4099 - 8 bit Addressable Latch IC The CD4099 8-bit addressable latch IC is a serial-input, parallel-output storage register that can perform a variety of functions. Data are inputted to a particular bit in the latch when that bit is addressed (by means of input A0, A1, A2) and when WRITE DISABLE is at a low level. When WRITE DISABLE is high, data entry is inhibited; however, all 8 outputs can be continuously read independently of WRITE DISABLE and address inputs. A master RESET input is available, which resets all bits to a logic "0" level when RESET and WRITE DISABLE is at a high level. When RESET is at a high level, and WRITE RESET is at a low level, the latch acts as a 1-of-8 demultiplexer; the bit that is addressed has an active output that follows the data input, while all unaddressed bits are held to a logic "0" level. The CD4099 types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes). check out : Quad NOR R-S Latch Tri-state IC - CD4043 Pinout: Pin No Pin Name Description 1 Q7 Output Pin 7 of Latch 2 CL Clear Output Pin 3 D Data Input 4 E’ Enable Pin 5 A0 Input Pin 0 of Latch 6 A1 Input Pin 1 of Latch 7 A2 Input Pin 2 of Latch 8 VSS Source Supply 9 Q0 Output Pin 0 of Latch 10 Q1 Output Pin 1 of Latch 11 Q2 Output Pin 2 of Latch 12 Q3 Output Pin 3 of Latch 13 Q4 Output Pin 4 of Latch 14 Q5 Output Pin 5 of Latch 15 Q6 Output Pin 6 of Latch 16 VDD Drain Supply Applications: Multi-line decoders A/D converters

14 Stage Ripple Carry Binary Counter IC - CD4020 The CD4020 IC is a ripple-carry binary counter. All counter stages are master-slave flip-flops. The state of a counter advances one count on the negative transition of each input pulse; a high level on the RESET line resets the counter to its all-zeros state. Schmitt's trigger action on the input-pulse line permits unlimited rise and fall times. All inputs and outputs are buffered. The CD4x Series CD4020 type is supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes). check out : CD4040 - 12-Stage Ripple Carry Binary Counter IC Pinout: Pinout of CD4020 IC Applications: Control counters Timers Frequency dividers Time-delay circuits

The DS1307 serial real-time clock (RTC) is a lowpower, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I2C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12- hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.

DS3231 Real Time Clock Module for Raspberry Pi (Without Battery) The DS3231 Real-Time Clock (RTC) Module keeps accurate time for your Raspberry Pi and also works with Arduino. It tracks seconds, minutes, hours, day, date, month, and year, accurate up to the year 2100. The module adjusts to work with 3.3V or 5V, so it’s safe to use with Raspberry Pi. It has two alarms, a 1Hz and 32.768kHz output, and uses a fast I2C connection for easy setup. This low-power module also has a battery backup option (battery not included) to keep time when the main power is off.

CD4029 - Binary Decade Up-Down Counter IC The CD4029 IC consists of a four-stage binary or BCD-decade up/ down counter with provisions for look-ahead carry in both counting modes. The inputs consist of a single CLOCK, CARRY-IN (CLOCK ENABLE), BINARY/DECADE, UP/DOWN, PRESET ENABLE, and four individual JAM signals. Q1, Q2, Q3, Q4, and a CARRY OUT signal are provided as outputs. A high PRESET ENABLE signal allows information on the JAM INPUTS to preset the counter to any state asynchronously with the clock. A low on each JAM line, when the PRESET-ENABLE signal is high, resets the counter to its zero counts. The counter is advanced one count at the positive transition of the clock when the CARRY-IN and PRE-SET ENABLE signals are low. Advancement is inhibited when the CARRY-IN or PRESET ENABLE signals are high. The CARRY-OUT signal is normally high and goes low when the counter reaches its maximum count in the UP mode or the minimum count in the DOWN mode provided the CARRY-IN signal is low. The CARRY-IN signal in the low state can thus be considered a CLOCK ENABLE. The CARRY-IN terminal must be connected to VSS when not in use. Binary counting is accomplished when the BINARY/DECADE input is high; the counter counts in the decade mode when the BINARY/DECADE input is low. The counter counts up when the UP/DOWN input is high, and down when the UP/DOWN input is low. Multiple packages can be connected in either a parallel clocking or a ripple-clocking arrangement as shown in Figure 17. Parallel clocking provides synchronous control and hence faster response from all counting outputs. Ripple-clocking allows for longer clock input rise and fall times. The CD4x Series CD4029 is supplied in these 16-lead outline packages: Braze Seal DIP H4X Frit Seal DIP H1F Ceramic Flatpack H6W. Pinout: Pinout of CD4029 IC

CD4514 - 4 Bit Latch/4-16 Line Decoder IC The CD4x Series CD4514 IC is a 4-to-16-line decoder with latched inputs implemented with complementary MOS (CMOS) circuits constructed with N- and P-channel enhancement mode transistors. These circuits are primarily used in decoding applications where low power dissipation and/or high noise immunity are required. The CD4514 (output active high option) presents a logical “1” at the selected output. The input latches are R–S type flip-flops, which hold the last input data presented prior to the strobe transition from “1” to “0”. This input data is decoded and the corresponding output is activated. An output inhibits line is also available. Pinout: Pinout Of CD4514 IC