Details

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BUY 82C55AC-2 https://www.utsource.net/itm/p/12529441.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	4.75	5	5.25	V
Output High Level Voltage	VOH	IOH = -4mA	2.4		5	V
Output Low Level Voltage	VOL	IOL = 16mA	0		0.5	V
Input High Level Voltage	VIH		2		5.5	V
Input Low Level Voltage	VIL		0		0.8	V
Output High Level Current	IOH	VOH = 2.4V	-4		-10	mA
Output Low Level Current	IOL	VOL = 0.5V	4	8	16	mA
Input Leakage Current	IIH	VIH = 5V	-1		1	μA
Input Leakage Current	IIL	VIL = 0V	-1		1	μA
Power Dissipation	PD				320	mW
Operating Temperature Range	TA		0		70	°C
Storage Temperature Range	Tstg		-65		150	°C

Instructions for Using 82C55AC-2

1. Power Supply:

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

2. Signal Levels:

   • For output pins, ensure that the high-level voltage (VOH) is at least 2.4V when sourcing up to 4mA.
   • For output pins, ensure that the low-level voltage (VOL) is no more than 0.5V when sinking up to 16mA.
   • For input pins, ensure that the high-level voltage (VIH) is at least 2V.
   • For input pins, ensure that the low-level voltage (VIL) is no more than 0.8V.

3. Current Ratings:

   • The maximum output high-level current (IOH) is -10mA.
   • The typical output low-level current (IOL) is 8mA, with a maximum of 16mA.
   • The input leakage current (IIH and IIL) should be within ±1μA.

4. Temperature:

   • Operate the device within the temperature range of 0°C to 70°C.
   • Store the device within the temperature range of -65°C to 150°C.

5. Configuration:

   • Use the control register to configure the mode of operation (Mode 0, Mode 1, or Mode 2) for each port (Port A, Port B, and Port C).
   • Set the direction of each port (input or output) using the control register.

6. Programming:

   • Write to the control register to set the desired configuration.
   • Read from or write to the data registers of Port A, Port B, and Port C as needed.

7. Power Dissipation:

   • Ensure that the total power dissipation does not exceed 320mW to avoid overheating.

8. Handling:

   • Handle the device with care to avoid electrostatic discharge (ESD) damage.
   • Use appropriate ESD protection measures during handling and installation.

9. Testing:

   • Verify the functionality of the 82C55AC-2 by testing the input and output signals under various conditions to ensure they meet the specified parameters.

(For reference only)