Details

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BUY CP82C54-12 https://www.utsource.net/itm/p/876753.html
CMOS Programmable Interval Timer

Parameter	Description	Value
Part Number	Full part number	CP82C54-12
Function	3-channel programmable counter/timer
Operating Voltage	Supply voltage range	4.75V to 5.25V
Current Consumption	Typical current consumption	60mA (max)
Operating Temperature	Range for industrial grade	-40°C to +85°C
Clock Frequency	Maximum input clock frequency	12MHz
Output Drive	Output current per pin	15mA (sink/source)
Package Type	Package type	DIP-24
Pin Count	Number of pins	24
Counter Channels	Number of independent counter channels	3
Counter Resolution	Resolution of each counter channel	16-bit
Programming Mode	Modes of operation	Binary or BCD
Reset Function	Reset mechanism	Hardware reset

Instructions for Use:

1. Power Supply:

   • Connect the Vcc pin to a 5V power supply.
   • Connect the GND pin to ground.

2. Clock Input:

   • Connect the clock input (CLK0, CLK1, CLK2) to a stable clock source with a maximum frequency of 12MHz.

3. Counter Channels:

   • Each counter channel (Channel 0, Channel 1, Channel 2) can be programmed independently.
   • Set the mode of operation (binary or BCD) using the control word register.

4. Control Word Register:

   • Write the control word to the control word register to configure the counter channels.
   • The control word includes settings for mode, read/write operations, and counter selection.

5. Reading and Writing:

   • To write to a counter, select the appropriate channel and send the data to the corresponding data port.
   • To read from a counter, select the appropriate channel and read the data from the corresponding data port.

6. Reset:

   • Use the hardware reset pin (RESET) to reset all counters to their initial state.

7. Output:

   • The output pins (OUT0, OUT1, OUT2) provide the status of the respective counter channels.
   • These outputs can be used to trigger other circuits or devices.

8. Interfacing:

   • Ensure proper interfacing with other components to avoid signal integrity issues.
   • Use pull-up or pull-down resistors as needed to stabilize signals.

9. Handling:

   • Handle the device with care to avoid static damage.
   • Follow standard ESD (Electrostatic Discharge) precautions during handling and installation.

(For reference only)