SN54ABTH16245

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
Input voltage range, VI (except I/O ports) (see Note 1) . . . . . . . . . . . . . . .  . .. .0.5 V to 7 V
Voltage range applied to any output in the high or power-off state, V_O . . . . . 0.5 V to 5.5 V
Current into any output in the low state, IO: SN54ABTH16245 . . . .  . . . . .  . . . . . . . . . .96 mA
                                                                       SN74ABTH16245 .. . . . .   . .  . .. .  . .  . . ..128 mA      
Input clamp current, I_IK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .18 mA
Output clamp current, I_OK (VO < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 mA
Package thermal impedance, _JA (see Note 2): DGG package . .  . . . . . .. . . . . . . . . . ..89°C/W
                                                                           DGV package . . . .  . . . . . ..  . . . . . ..  .93°C/W
                                                                           DL package . . . . . .  . . . . . .. . . . . . .. ..94°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . .  . . .. . . . .65°C to 150°C 

The 'ABTH16245 devices are 16-bit noninverting 3-state transceivers that provide synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

SN54ABTH16245 can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input of SN54ABTH16245 can be used to disable the devices so that the buses are effectively isolated.

When VCC is between 0 and 2.1 V, the SN54ABTH16245 is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

Active bus-hold circuitry of SN54ABTH16245 is provided to hold unused or floating data inputs at a valid logic level.

The SN54ABTH16245 is characterized for operation over the full military temperature range of 55°C to 125°C.

The SN74ABTH16245 is characterized for operation from 40°C to 85°C.