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Specifications
SKU: 11227050
IC EPROM 512K PARALLEL 28CDIP
| Parameter | Description | Value |
|---|---|---|
| Device Type | Non-Volatile Memory | 512K x 8-bit UV-Erasable PROM |
| Manufacturer | STMicroelectronics | - |
| Part Number | M27C512-12F1 | - |
| Package | DIP-28 (Dual Inline Package) | - |
| Operating Voltage (Vcc) | Supply Voltage Range | 4.5V to 5.5V |
| Programming Voltage (Vpp) | Programming Voltage | 12.5V ± 0.5V |
| Data Retention | Data Retention Time | 10 years at 85°C, 20 years at 25°C |
| Programming Time | Typical Programming Time per Byte | 3ms (max 10ms) |
| Erase Time | Typical Erase Time | 1 second (max 2 seconds) |
| Write Cycles | Endurance | 100,000 cycles |
| Operating Temperature | Industrial Temperature Range | -40°C to +85°C |
| Storage Temperature | Storage Temperature Range | -65°C to +150°C |
| Access Time | Access Time | 120ns (max) |
| Standby Current | Standby Current (Vcc = 5V) | 100μA (max) |
| Active Current | Active Current (Vcc = 5V, f = 5MHz) | 20mA (max) |
| Programming Current | Programming Current (Vpp = 12.5V) | 15mA (max) |
Instructions for Use:
Power Supply:
- Connect Vcc to a stable 5V supply.
- Connect Vpp to 12.5V ± 0.5V during programming, and to Vcc or ground during normal operation.
Addressing:
- Apply the desired address to the A0-A18 pins to select the memory location.
Data Input/Output:
- For reading, apply the address and enable the chip by pulling /OE low. The data will appear on the D0-D7 pins.
- For writing, apply the address and data to the D0-D7 pins, then enable the chip by pulling /WE low while Vpp is applied.
Chip Enable (/CE):
- Pull /CE low to enable the device. When high, the device is in standby mode.
Output Enable (/OE):
- Pull /OE low to enable data output. When high, the outputs are in high-impedance state.
Write Enable (/WE):
- Pull /WE low to initiate a write operation. This pin should be high during read operations.
Erase Operation:
- Expose the device to UV light (wavelength 253.7nm) for at least 1 second to erase the entire chip.
Programming:
- Apply the programming voltage (Vpp) to the appropriate pin.
- Set the address and data lines.
- Pull /WE low to start the programming cycle.
- Wait for the specified programming time before accessing the programmed location.
Handling Precautions:
- Handle the device with care to avoid static damage.
- Ensure proper alignment of the device in the socket to prevent damage to the pins.
- Follow the recommended operating conditions to ensure reliable performance.
For detailed specifications and additional information, refer to the datasheet provided by STMicroelectronics.
(For reference only)Inquiry - M27C512-12F1
