SN74ALS245ADBR

Logic Family : ALS
Number of Channels per Chip : 8
Output Type : 3-State
Maximum Operating Temperature : + 70 C
Supply Voltage - Max : 5.5 V
Packaging : Reel
Logic Type : Standard Transceiver
Low Level Output Current : 24 mA
Propagation Delay Time : 10 ns
Supply Voltage - Min : 4.5 V
Input Level : TTL
Output Level : TTL
High Level Output Current : - 15 mA
Package / Case : SSOP-20


Features:

· 4.5-V to 5.5-V VCC Operation
· Max tpd of 5.5 ns at 5 V
· 3-State Outputs Drive Bus Lines Directly
· pnp Inputs Reduce dc Loading


Pinout




Specifications

Supply voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V
Input voltage, V_I: All inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7 V
I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . .   5.5 V
Package thermal impedance, _JA (see Note 1): DB package . . . . . . . . . . . . . . . . . . . . . . . . . .70°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   60°C/W
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65°C to 150°C
† Stresses beyond those listed under "absolute maximum ratings" 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.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.


Description

These  SN74ALS245ADBR octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.
 
The SN74ALS245ADBR devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.

The -1 version of the SN74ALS245A is identical to the standard version, except that the recommended maximum IOL is increased to 48 mA. There is no -1 version of the SN54ALS245A.

Parameters:

Technical/Catalog Information	SN74ALS245ADBR
Vendor	Texas Instruments (VA)
Category	Integrated Circuits (ICs)
Logic Type	Transceiver, Non-Inverting
Package / Case	20-SSOP
Packaging	Cut Tape (CT)
Mounting Type	Surface Mount
Number of Bits per Element	8
Number of Elements	2 - Dual
Operating Temperature	0°C ~ 70°C
Voltage - Supply	4.5 V ~ 5.5 V
Current - Output High, Low	15mA, 24mA
Drawing Number	296; 4040065; DB; 14, 16, 20, 24, 28, 30, 38
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SN74ALS245ADBR SN74ALS245ADBR 296 5049 1 ND 29650491ND 296-5049-1