Purchase CDP1854A, In-stock CDP1854A From SeekIC.
Part Number: CDP1854A
Description: The CDP1854A and CDP1854AC are silicon-gate CMOS Universal Asynchronous Receiver/Transmitter (UART) ci...
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CDP1854A
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DataSheet
General Description
CDP1854A General Description
The CDP1854A and CDP1854AC are 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 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 UART can be programmed to operate in one of two modes by using the mode control input. When the input is high (MODE = 1), the CDP1854A 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 UART's 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 and the CDP1854AC are functionally identical. The CDP1854A has a recommended operating voltage range of 4V to 10.5V, and the CDP1854AC has a recommended operating voltage range of 4V to 6.5V.
CDP1854A Maximum Ratings
DC Supply-Voltage Range, (VDD)
(Voltages Referenced to VSS Terminal)
CDP1854A . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .-0.5 to +11V
CDP1854AC . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .-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
TA = Full Package-Temperature Range . . . . . . . . . . . . . . 100mW
Operating-Temperature Range (TA)
Package Type D . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC
Package Type E and Q . . . . . . . . . . . . . . . . . . . . -40oC to +85oC
(Voltages Referenced to VSS Terminal)
CDP1854A . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .-0.5 to +11V
CDP1854AC . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .-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
TA = Full Package-Temperature Range . . . . . . . . . . . . . . 100mW
Operating-Temperature Range (TA)
Package Type D . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC
Package Type E and Q . . . . . . . . . . . . . . . . . . . . -40oC to +85oC
CDP1854A 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
• Baud Rate
- DC to 200K Bits/s at VDD. . . . . . . . . . . . . . . . . . . . 5V
- DC to 400K Bits/s at VDD. . . . . . . . . . . . . . . . . . . .10V
• Fully Programmable with Externally Selectable Word Length (5-8 Bits), Parity Inhibit, Even/Odd Parity, and 1, 1-1/2, or 2 Stop Bits
• False Start Bit Detection
- 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
• Baud Rate
- DC to 200K Bits/s at VDD. . . . . . . . . . . . . . . . . . . . 5V
- DC to 400K Bits/s at VDD. . . . . . . . . . . . . . . . . . . .10V
• Fully Programmable with Externally Selectable Word Length (5-8 Bits), Parity Inhibit, Even/Odd Parity, and 1, 1-1/2, or 2 Stop Bits
• False Start Bit Detection
CDP1854A Connection Diagram
CDP1854A
PDF/DataSheet Download
- Datasheet: CDP1854A
- File Size: 97756 KB
- Manufacturer: INTERSIL [Intersil Corporation]
- Click here to Download
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