CD4505- 64-bit, 1-bit per word random access memory (RAM)
Series CD4000 (CMOS)
CD4505 overview
CD4505 belongs to 4000 Series CMOS Logic Family of Integrated Circuits (IC's) constructed with N- and P-channel enhancement mode transistors. CD4505 has 64-bit, 1-bit per word random access memory (RAM)
CD4505 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
hef4505bd.pdf
CD4505 features
- High-Voltage Types (20V Rating)
- Buffered Inputs and Outputs
- Standard Symmetrical Output Characteristics
- 100% Tested for Maximum Quiescent Current at 20V
- 5V, 10V, and 15V Parametric Ratings
CD4505 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | A0 | Address input A0 |
| 2 | A1 | Address input A1 |
| 3 | A2 | Address input A2 |
| 4 | A3 | Address input A3 |
| 5 | ST | strobe input |
| 6 | CE1 | chip enable input 2 |
| 7 | VSS | Supply Voltage |
| 8 | CE2 | chip enable input 2 |
| 9 | R/W' | read/write input |
| 10 | D(OUT) | Data output |
| 11 | A4 | Address input A4 |
| 12 | A5 | Address input A5 |
| 13 | DIN | Data input |
| 14 | 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 |
| DC Input Current, Any One Input | ±10mA |
| Operating Temperature Range | -55oC to +125oC Package Types D, F, K, H |
| Storage Temperature Range (TSTG) | -65oC to +150oC |
| Lead Temperature (During Soldering) | +265oC |
More about CD4505
Absolute Maximum Ratings
- Lead Temperature (During Soldering): +265oC
- At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for 10s Maximum
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