The MA is a , bit UV erasable and. It is. The trans-. A new. Figure 1.
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The MA is a , bit UV erasable and. It is. The trans-. A new. Figure 1. Logic Diagram. Table 1. Signal Names. A0 - A Q0 - Q7. Address Inputs. Data Outputs. Chip Enable. Output Enable. Program Supply. Supply Voltage. P MA. March Table 2.
Absolute Maximum Ratings. T A Ambient Operating Temperature. T BIAS. Temperature Under Bias. T STG. Storage Temperature. V CC Supply Voltage.
V A9 A9 Voltage. V PP Program Supply. These are stress ratings only and operation of the device at these or any other conditions above those. Exposure to Absolute Maximum Rating conditions for extended periods. Figure 2. DIP Pin Connections. The seven modes of operation of the MA are. A single 5V. Read Mode. The MA has two control functions, both of. Chip Enable E is the power. Output Enable G is the output control and should. Assuming that the addresses are stable, address.
Data is available at the outputs after. Standby Mode. The MA has a standby mode which reduces. The MAis placed in the standby mode.
Two Line Output Control. The two line control function. Download Datasheet. It is organized as 16, words by 8 bits. The trans- parent lid allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by follow- ing the programming procedure. MA Table 2. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied.
Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. A single 5V power supply is required in the read mode.
Read Mode The MA has two control functions, both of which must be logically satisfied in order to obtain data at the outputs. Chip Enable E is the power control and should be used for device selection. Output Enable G is the output control and should be used to gate data to the output pins, inde- pendent of device selection.
When in the standby mode, the outputs are in a high impedance state, independent of the G input. Two Line Output Control Because EPROMs are usually used in larger mem- ory arrays, this product features a 2 line control function which accommodates the use of multiple memory connection. The two line control function allows: a.
27128 - 27128 128K (16kb x 8) 150ns NMOS EPROM Technical Data
It is organized as 16, words by 8 bits. The transparent lid allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure. Note: Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum Ratings" may cause permanent damage to the device.
27128 EPROM. Datasheet pdf. Equivalent