Details

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BUY CS82C55A-5 https://www.utsource.net/itm/p/12606401.html

Parameter	Description	Value
Device	Device Name	CS82C55A-5
Package	Package Type	40-pin PDIP, 44-pin QFP
Operating Voltage (Vcc)	Supply Voltage Range	4.75 V to 5.25 V
I/O Ports	Number of I/O Ports	3 (Port A, Port B, Port C)
Data Bus Width	Data Bus Width	8-bit
Output Drive Current	Maximum Output Current per Pin	15 mA (sink), 10 mA (source)
Input Leakage Current	Maximum Input Leakage Current	卤1 渭A
Operating Temperature	Temperature Range	-40掳C to +85掳C
Storage Temperature	Storage Temperature Range	-65掳C to +150掳C
Power Consumption	Maximum Power Consumption	250 mW (typical at 5 V, 25掳C)
Clock Frequency	Maximum Clock Frequency	10 MHz
Propagation Delay Time	Typical Propagation Delay Time	50 ns (at 5 V, 25掳C)

Instructions for Use

1. Power Supply:

   • Ensure that the supply voltage (Vcc) is within the specified range of 4.75 V to 5.25 V.
   • Connect the ground (GND) pin to a stable ground reference.

2. I/O Configuration:

   • The CS82C55A-5 has three 8-bit ports (Port A, Port B, and Port C). Each port can be configured as input or output using control registers.
   • Port C can be divided into two 4-bit ports (PC0-PC3 and PC4-PC7) for additional flexibility.

3. Control Register Programming:

   • The control register is used to set the mode of operation for each port. Write the appropriate configuration byte to the control register to set the desired mode.
   • Example modes include simple input/output, strobed input/output, and bidirectional handshake.

4. Data Transfer:

   • To read from or write to a port, use the corresponding data register address.
   • Ensure that the chip select (CS), read/write (R/W), and other control signals are properly managed to avoid bus conflicts.

5. Timing Considerations:

   • The device operates with a maximum clock frequency of 10 MHz.
   • Ensure that the propagation delay time (50 ns typical) is accounted for in your timing calculations.

6. Thermal Management:

   • The operating temperature range is -40掳C to +85掳C. Ensure adequate cooling if operating near the upper limit.
   • Store the device within the storage temperature range of -65掳C to +150掳C to prevent damage.

7. Power Consumption:

   • The device typically consumes 250 mW at 5 V and 25掳C. Ensure that the power supply can handle this load.

8. Handling Precautions:

   • Handle the device with care to avoid static discharge, which can damage the internal circuits.
   • Follow standard ESD (Electrostatic Discharge) precautions when handling and installing the device.

By following these instructions, you can ensure reliable operation of the CS82C55A-5 in your application.

(For reference only)