74F1244

Features:

• High impedance NPN base inputs for reduced loading (20mA in High and Low states)
• Low power, light loading
• Functional pin-for-pin equivalent of 74F244
• 1/30th the bus loading of 74F244
• Provides ideal interface and increase fan-out of MOS microprocessors
• Octal bus interface
• 3-State buffer outputs sink 64mA and source 15mA



Pinout




Specifications

SYMBOL	PARAMETER		RATING	UNIT
VCC	Supply voltage		0.5 to +7.0	V
VIN	Input voltage		0.5 to +7.0	V
IIN	Input current		30 to +5	mA
VOUT	Voltage applied to output in high output state		0.5 to VCC	V
IOUT	Current applied to output in low output state		128	mA
Tamb	Operating free-air temperature range		0 to +70	°C
Tstg	Storage temperature range		65 to +150	°C

Description

    The 74F1244 is an octal buffer that is ideal for driving bus lines or buffer memory address registers. The outputs are capable of sinking 64mA and sourcing up to 15mA, producing very good capacitive drive characteristics. The device features two Output Enables, OEa and OEb, each controlling four of the 3-State outputs.

   The 74F1244 is pin and functionally compatible with the 74F244. The lower power and light bus loading features make it an ideal part to interface directly with MOS microprocessors.