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ESP32 CAM WiFi Module with OV3660 Camera Module 2MP
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CD4099 - 8 bit Addressable Latch IC
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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
| 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 |
Selected qty of IC - CD4099
| Part number | CD4099B |
| Technology Family | CD4000 |
| VCC (Min) (V) | 3 |
| VCC (Max) (V) | 18 |
| Bits (#) | 8 |
| Voltage (Nom) (V) | 10 |
| F @ nom voltage (Max) (MHz) | 8 |
| ICC @ nom voltage (Max) (mA) | 0.3 |
| tpd @ nom Voltage (Max) (ns) | 150 |
| IOL (Max) (mA) | 1.5 |
| IOH (Max) (mA) | -1.5 |
| 3-state output | No |
| Operating temperature range (C) | -55 to 125 |