CD4042 Quad Clocked D Latch
Package SOIC, CDIP, TSSOP Series CD4000 (CMOS)
CD4042 overview
CD4042 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC's) constructed with N- and P-channel enhancement mode transistors. CD4042 has Quad Clocked D Latch
CD4042 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
cd4042b.pdf
CD4042 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
- Clock polarity control
- Fully buffered data inputs
- Q and Q outputs
CD4042 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | Q4 | D Latch Output 4 |
| 2 | Q1 | D Latch Output 1 |
| 3 | Q1' | Invert D Latch Output 1 |
| 4 | D1 | D Latch Input 1 |
| 5 | CLK | Clock Pin |
| 6 | POLARITY | Polarity Pin |
| 7 | D2 | D Latch Input 2 |
| 8 | VSS | Supply Voltage |
| 9 | Q2' | Invert D Latch Output 2 |
| 10 | Q2 | D Latch Output 2 |
| 11 | Q3' | Invert D Latch Output 3 |
| 12 | Q3 | D Latch Output 3 |
| 13 | D3 | D Latch Input 3 |
| 14 | D4 | D Latch Input 4 |
| 15 | Q4' | Invert D Latch Output 4 |
| 16 | VDD | Drain Voltage |
Absolute maximum ratings
| Parameter | Value |
|---|---|
| DC Supply Voltage Range, (VDD) | -0.5V to +20V (Voltage Referenced to VSS Terminals) |
| Input Voltage Range, All Inputs | -0.5V to VDD +0.5V |
| Storage Temperature Range (TSTG) | -65oC to +150oC |
| Lead Temperature (During Soldering) | +260oC |
CD4042 applications
- used as input / output ports.
More about CD4042
CD4042 Features
- Low power TTL Fan out of 2 driving 74L
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