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Part Number: CDP1853AC
Description: The CDP1854A/3 and CDP1854AC/3 are high reliability silicon gate CMOS Universal Asynchronous Receiver/...
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CDP1853AC
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DataSheet
General Description
CDP1853AC General Description
The CDP1854A/3 and CDP1854AC/3 are high reliability silicon gate CMOS Universal Asynchronous Receiver/Transmitter (UART) circuits. They are designed to provide the necessary formatting and control for interfacing between serial and parallel data. For example, these UARTs can be used to interface between a peripheral or terminal with serial I/O ports and the 8-bit CDP1800-series microprocessor parallel data bus system. The CDP1854A/3 is capable of full duplex operation, i.e., simultaneous conversion of serial input data to parallel output data and parallel input data to serial output data.
The CDP1854A/3 UART can be programmed to operate in one of two modes by using the mode control input. When the mode input is high (MODE = 1), the CDP1854A/3 is directly compatible with the CDP1800 series microprocessor system without additional interface circuitry. When the mode input is low (MODE = 0), the device is functionally compatible with industry standard UARTs such as the TR1602A and CDP6402. It is also pin compatible with these types, except that pin 2 is used for the mode control input.
The CDP1854A/3 and the CDP1854AC/3 are functionally identical. The CDP1854A/3 has a recommended operating voltage range of 4V to 10.5V, and the CDP1854AC/3 has a recommended operating voltage range of 4V to 6.5V.
CDP1853AC Maximum Ratings
DC Supply-Voltage Range, (VDD)
(All voltages referenced to VSS terminal)
CDP1854A/3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5 to +11V
CDP1854AC/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5 to +7V
Input Voltage Range, All Inputs . . . . . . . . . . . . . -0.5 to VDD +0.5V
DC Input Current, Any One Input. . . . . . . . . . . . . . . . . . . . .±10mA
Device Dissipation Per Output Transistor
For TA = Full Package-Temperature Range . . . . . . . . . . . 100mW
Operating-Temperature Range (TA)
Package Type D. . . . . . . . . . . . . . . . . . . . . . . .-55oC to +125oC
(All voltages referenced to VSS terminal)
CDP1854A/3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5 to +11V
CDP1854AC/3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5 to +7V
Input Voltage Range, All Inputs . . . . . . . . . . . . . -0.5 to VDD +0.5V
DC Input Current, Any One Input. . . . . . . . . . . . . . . . . . . . .±10mA
Device Dissipation Per Output Transistor
For TA = Full Package-Temperature Range . . . . . . . . . . . 100mW
Operating-Temperature Range (TA)
Package Type D. . . . . . . . . . . . . . . . . . . . . . . .-55oC to +125oC
CDP1853AC Features
• Two Operating Modes
- Mode 0 - Functionally Compatible with Industry Types Such as the TR1602A and CDP6402
- Mode 1 - Interfaces Directly with CDP1800 Series Microprocessors without Additional Components
• Full or Half-Duplex Operation
• Parity, Framing, and Overrun Error Detection
• Fully Programmable with Externally Selectable Word Length (5-8 Bits), Parity Inhibit, Even/Odd Parity, and 1, 1-1/2, or 2 Stop Bits
- Mode 0 - Functionally Compatible with Industry Types Such as the TR1602A and CDP6402
- Mode 1 - Interfaces Directly with CDP1800 Series Microprocessors without Additional Components
• Full or Half-Duplex Operation
• Parity, Framing, and Overrun Error Detection
• Fully Programmable with Externally Selectable Word Length (5-8 Bits), Parity Inhibit, Even/Odd Parity, and 1, 1-1/2, or 2 Stop Bits
CDP1853AC Connection Diagram
CDP1020
PDF/DataSheet Download
- Datasheet: CDP1020
- File Size: 158108 KB
- Manufacturer: INTERSIL [Intersil Corporation]
- Click here to Download
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