NTE8255 NTE Electronics, Inc., NTE8255 Datasheet
NTE8255
Related parts for NTE8255
NTE8255 Summary of contents
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... Programmable Peripheral Interface Description: The NTE8255 is a general purpose programmable INPUT/OUTPUT device in a 40−Lead DIP type package designed for use with the 8080A/8085A microprocessors. Twenty−four (24) I/O lines may be programmed in two groups of twelve (Group I and Group II) and used in three modes of operation. In the Basic mode, (MODE 0), each group of twelve I/O pins may be programmed in sets input or output ...
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A Parameter Input Low Voltage Input High Voltage Output Low Voltage Output High Voltage Darlington Drive Current Power Supply Current Input Leakage Current Output Leakage Current Note 3. Any set of eight (8) outputs from either Port ...
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Parameter OTHER TIMING Output Peripheral Data Before RD Peripheral Data After RD ACK Pulse Width STB Pulse Width Per. Data Before T.E. of STB Per. Data After T.E. of STB ACK = 0 to Output ACK ...
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... A Logic Low this input enables the NTE8255 for communication with the 8080A/8085A. IL Read, RD (Pin5) A Logic Low this input enables the NTE8255 to send Data or Status to the processor via the IL Data Bus Buffer. Write, WR (Pin36) A Logic Low this input enables the Data Bus Buffer to receive Data or Control Words from the IL processor ...
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... While the Control Word Register can be written into, the contents cannot be read back to the processor. Ports A, B, and C The three 8−bit I/O ports (A, B, and C) in the NTE8255 can all be configured to meet a wide variety of functional requirements through system software. The effectiveness and flexibility of the NTE8255 are further enhanced by special features unique to each of the ports ...
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Max .650 (16.5) ...