CD4099 8-bit Addressable Latch
Series CD4000 (CMOS)
CD4099 overview
CD4099 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC's) constructed with N- and P-channel enhancement mode transistors. CD4099 has an 8-bit Addressable Latch
CD4099 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.
Datasheet
cd4099.pdf
CD4099 features
- Wide supply voltage range: 3.0V to 15V
- High noise immunity: 0.45 VDD (typ.)
- Low power TTL: fan out of 2 driving 74Lcompatibility: or 1 driving 74LS
- compatibility: or 1 driving 74LS
- Serial to parallel capability
- Storage register capability
- Random (addressable) data entry
- Active high demultiplexing capability
- Common active high clear
CD4099 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | Q7 | Output Of Addressable Latch Q7 |
| 2 | CL | Clear Input Pin |
| 3 | D | Data Input Pin |
| 4 | E' | Active Low Enable Input Pin |
| 5 | A0 | Address Input A0 |
| 6 | A1 | Address Input A1 |
| 7 | A2 | Address Input A2 |
| 8 | VSS | Supply Voltage |
| 9 | Q0 | Output Of Addressable Latch Q0 |
| 10 | Q1 | Output Of Addressable Latch Q1 |
| 11 | Q2 | Output Of Addressable Latch Q2 |
| 12 | Q3 | Output Of Addressable Latch Q3 |
| 13 | Q4 | Output Of Addressable Latch Q4 |
| 14 | Q5 | Output Of Addressable Latch Q5 |
| 15 | Q6 | Output Of Addressable Latch Q6 |
| 16 | VDD | Drain Voltage |
Absolute maximum ratings
| Parameter | Value |
|---|---|
| DC Supply Voltage Range, (VDD) | -0.5V to +18V |
| Input Voltage Range, All Inputs | -0.5V to VDD +0.5V |
| DC Input Current, Any One Input | ±10mA |
| Storage Temperature Range (TSTG) | -65oC to +150oC |
| Lead Temperature (During Soldering) | +260oC |
CD4099 applications
- Generally, latches are used to keep the conditions of the bits to encode binary numbers
- Latches are single bit storage elements which are widely used in computing as well as data storage.
- Latches are used in the circuits like power gating & clock as a storage device
More about CD4099
CD4099 Features
- Low power TTL: fan out of 2 driving 74L
Absolute Maximum Ratings
- Power Dissipation (PD)
- Dual-In-Line 700 mW
- Small Outline 500 mW
- Lead Temperature (During Soldering): +260oC
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
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