74ABT2953

Features:

• 8-bit registered transceiver
• 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
• Live insertion/extraction permitted
• Power-up 3-State
• Power-up reset


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
Tstg	Storage temperature range		65 to 150

NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.


Description

The 74ABT2953 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.

The 74ABT2953 device is an 8-bit registered inverting transceiver. Two 8-bit back-to-back 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 (CPXX) provided that the Clock Enable (CEXX ) is Low. The data is then present at the 3-State output buffers, but is only accessible when the Output Enable (CEXX ) is Low. Data flow from A inputs to B outputs is the same as for B inputs to A outputs.