74ABT544

Features:

*Combines 74ABT245 and 74ABT373 type functions in one device
*8-bit octal transceiver with D-type latch
*Back-to-back registers for storage
*Separate controls for data flow in each direction
*Output capability: +64mA/32mA
*Live insertion/extraction permitted
*Power-up 3-State
*Power-up reset
*Latch-up protection exceeds 500mA per Jedec JC40.2 Std 17
*ESD protection exceeds 2000 V per MIL STD 883 Method 3015 and 200 V per Machine Model


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 74ABT544 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.

The 74ABT544 Octal Registered Transceiver contains two sets of D-type latches for temporary storage of data flowing in either direction. Separate Latch Enable (LEAB , LEBA ) and Output Enable (OEAB , OEBA ) inputs are provided for each register to permit independent control of data transfer in either direction. The outputs are guaranteed to sink 64mA.