DS1307 RTC IC (Real Time Clock)

4-bit Magnitude Comparator IC - 74HC85 The 74HC Series 74HC85 are high-speed Si-gate CMOS devices and are pin-compatible with low-power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC85 IC are 4-bit magnitude comparators that can be expanded to almost any length. They perform the comparison of two 4-bit binary, BCD, or other monotonic codes and present the three possible magnitude results at the outputs (QA>B, QA=B and QAB, IA=B and IAB = = LOW and IA=B = HIGH. For words greater than 4-bits, units can be cascaded by connecting outputs QA? and QA=B to the corresponding inputs of the significant comparator. Pinout: Pinout of 74HC85 IC

74HC02 - Quad 2-Input NOR Gate IC The 74HC Series 74HC02 IC is a 14-Pin Quad 2-Input NOR Gate IC. NOR gates utilize advanced silicon-gate CMOS technology to achieve operating speeds similar to LS-TTL gates with the low power consumption of standard CMOS integrated circuits. All gates have buffered outputs, providing high noise immunity and the ability to drive 10 LS-TTL loads. The 74HC logic family is functionally as well as pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and the ground. Pinout: Pinout Of 74HC02 IC Also check 74LS12 NAND Gate IC (Pack of 5) . Which is used for logical decision making and circuits involving conditional operations.

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

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

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

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

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

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

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

14-Stage Binary Ripple Counter IC - 74HC4060 The 74HC Series 74HC4060 IC is a high-speed binary ripple-carry counter. These counters are implemented utilizing advanced silicon-gate CMOS technology to achieve speed performance similar to LS-TTL logic while retaining the low power and high noise immunity of CMOS. The 74HC4060 is a 14-stage counter, which the device increments on the falling edge (negative transition) of the input clock, and all their outputs are reset to a low level by applying a logical high on their reset input. The 74HC4060 also has two additional inputs to enable the easy connection of either an RC or crystal oscillator. This device is pin equivalent to the CD4060. All inputs are protected from damage due to static discharge by protection diodes to VCC and the ground. Pinout: Pinout Of 74HC4060 IC

Dual 2-to-4 line Decoder/Demultiplexer IC - 74HC139 The 74HC Series 74HC139 comprises two separate two-line-to-four-line decoders in a single package. The active-low enable input can be used as a data line in demultiplexing applications. All of these decoders/demultiplexers feature fully buffered inputs, presenting only one normalized load to its driving circuit. All inputs are clamped with high-performance Schottky diodes to suppress line-ringing and simplify system design. These Schottky-clamped circuits are designed to be used in high-performance memory-decoding or data-routing applications, requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When used with high-speed memories, the delay times of these decoders are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible. Pinout: Pinout Of 74HC139 IC Symbol Pin Description 1E, 2E 1, 15 enable input (active LOW) 1A0, 1A1 2, 3 address input 1Y0, 1Y1, 1Y2, 1Y3 4, 5, 6, 7 output (active LOW) GND 8 ground (0 V) 2Y0, 2Y1, 2Y2, 2Y3 12, 11, 10, 9 output (active LOW) 2A0, 2A1 14, 13 address input VCC 16 positive supply voltage Also check 4 Bit D-Latch 74LS75 IC . It's a small, 16-pin integrated circuit (IC) chip that stores 4 bits of digital data. It's commonly used in digital circuits for data storage, timing control, and logic functions.

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

Octal 3-State Buffer/Line Driver IC - 74HC541 The 74HC Series 74HC541 IC is an octal non-inverting buffer/line driver with 3-state outputs. The device features two output enables (OE1 and OE2). A HIGH on OEn causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC. check out : Octal 3-State Buffer/Line Driver IC - 74HC244 Pinout: Pinout of 74HC541 IC Applications: Industrial Automation & Process Control Signal Processing Automotive

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