74AHCT125 - Quad Level-Shifter (3V to 5V)

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74AHCT125 quad level shifter for converting 3V logic signals up to 5V logic in mixed-voltage circuits.

1OEDIP pin 1
Output enable for buffer 1, active low
Type · control
1ADIP pin 2
Buffer 1 data input
Type · input
1YDIP pin 3
Buffer 1 data output
Type · output
2OEDIP pin 4
Output enable for buffer 2, active low
Type · control
2ADIP pin 5
Buffer 2 data input
Type · input
2YDIP pin 6
Buffer 2 data output
Type · output
GNDDIP pin 7
Ground
Type · powerVoltage · 0V
3YDIP pin 8
Buffer 3 data output
Type · output
3ADIP pin 9
Buffer 3 data input
Type · input
3OEDIP pin 10
Output enable for buffer 3, active low
Type · control
4YDIP pin 11
Buffer 4 data output
Type · output
4ADIP pin 12
Buffer 4 data input
Type · input
4OEDIP pin 13
Output enable for buffer 4, active low
Type · control
VCCDIP pin 14
Supply voltage
Type · powerVoltage · 4.5-5.5V

Pin	Position	Type	Function	Voltage
1OE	DIP pin 1	control	Output enable for buffer 1, active low
1A	DIP pin 2	input	Buffer 1 data input
1Y	DIP pin 3	output	Buffer 1 data output
2OE	DIP pin 4	control	Output enable for buffer 2, active low
2A	DIP pin 5	input	Buffer 2 data input
2Y	DIP pin 6	output	Buffer 2 data output
GND	DIP pin 7	power	Ground	0V
3Y	DIP pin 8	output	Buffer 3 data output
3A	DIP pin 9	input	Buffer 3 data input
3OE	DIP pin 10	control	Output enable for buffer 3, active low
4Y	DIP pin 11	output	Buffer 4 data output
4A	DIP pin 12	input	Buffer 4 data input
4OE	DIP pin 13	control	Output enable for buffer 4, active low
VCC	DIP pin 14	power	Supply voltage	4.5-5.5V

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