| Time, Access | 90 ns |
| Voltage, Programmable | 5 V |
| Capacitance, Input | 4 pF |
| Memory Capacity | 2 Mbit |
| Temperature Operating Range | -40 to +85 °C |
| Organization | 256K x 8 |
| Voltage, Output, High Level | 2.4 V (Read) |
| Voltage, Input, High Level | 5.5 V (Read) |
| Operating Voltage Range | Maximum of 5 V |
| Current, Output, Leakage | ±5 μA |
| Density | 2M |
| Fall Time | 20 ns |
| Memory Type | EPROM |
| Voltage, Output, Low Level | 0.4 V (Read) |
| Current, Input, Leakage | ±1 μA |
| Number of Pins | 32 |
| Supply Voltage | 5 V |
| Height | 0.19" (4.826mm) |
| Maximum Operating Temperature | +85 °C |
| Width | 0.55" (13.97mm) |
| Time, Address Setup | 2 μs |
| Operating Temperature | -40 to +85 °C |
| Current, Operating | 25 mA (Read) |
| In System Programmability | External |
| Time, Fall | 20 ns |
| Dimensions | 42.291 x 13.970 x 4.826 mm |
| Number of Bits per Word | 8 bit |
| Product Header | AT27C020 Series OTP EPROM Memory |
| Mounting Type | Surface Mount |
| Minimum Operating Temperature | -40 °C |
| Package Type | PLCC |
| Series | AT27 Series |
| Capacitance, Output | 8 pF |
| Voltage, Input, Low Level | 0.8 V (Read) |
| Rise Time | 20 |
| Length | 1.665" (42.291mm) |
| Time, Address Hold | 0 μs |
| Voltage, ESD | 2000 V |
| Reprogramming Technique | OTP |
| Interface | Parallel Bus |