74ABTH16952

Features:

• Two 8-bit registered transceivers
• Live insertion/extraction permitted
• Power-up 3-State
• 74ABTH16952 incorporates bus-hold data inputs which eliminate the need for external pull-up resistors to hold unused inputs
• Power-up reset
• Multiple VCC and GND pins minimize switching noise
• Independent registers for A and B buses
• Output capability: +64mA/32mA
• Latch-up protection exceeds 500mA per Jedec Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015 and 200V per Machine Model
• Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs



Pinout




Specifications

SYMBOL	PARAMETER	CONDITIONS	RATING	UNIT
VCC	DC supply voltage		0.5 to +7.0	V
IIK	DC input diode current	VI < 0	18	mA
VI	DC input voltage3		1.2 to +7.0	V
IOK	DC output diode current	VO < 0	50	mA
VOUT	DC output voltage3	output in Off or High state	0.5 to +5.5	V
IOUT	DC output current	output in Low state	128	mA
		Output in High state	-64	mA
Tstg	Storage temperature range		65 to 150	°C

Description

   The 74ABTH16952 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.

   The 74ABTH16952 is a dual octal registered transceiver. Two 8-bit registers store data flowing in both directions between two bidirectional buses. Data applied to the inputs is entered and stored on the rising edge of the Clock (nCPXX) provided that the Clock Enable (nCEXX ) is Low. The data is then present at the 3-State output buffers, but is only accessible when the Output Enable (nOEXX ) is Low. Data flow from A inputs to B outputs is the same as for B inputs to A outputs.

  Two options are available, 74ABT16952 which does not have the bus-hold feature and 74ABTH16952 which incorporates the bus-hold feature.