74ACT16620

Supply voltage range, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
Input voltage range, V_I (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to VCC + 0.5 V
Output voltage range, V_O (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to VCC + 0.5 V
Input clamp current, I_IK (V_I < 0 or V_I > V_CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±20 mA
Output clamp current, I_OK (V_O < 0 or VO > V_CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±50 mA
Continuous output current, I_O (V_O = 0 to V_CC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±50 mA
Continuous current through V_CC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .±400 mA
Maximum package power dissipation at T_A = 55°C (in still air) (see Note 2): DL package . . . . . . . . . .1.2 W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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 nditions for extended periods may affect device reliability.

NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are bserved.
2. The maximum package power dissipation is calculated using a junction temperature of 150
C and a board trace length of 750 mils.

The 74ACT16620 are inverting 16-bit transceivers designed for asynchronous communication between data buses. The control-function implementation allows for maximum flexibility in timing.

The 74ACT16620 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 output-enable (OEAB or OEBA) inputs. The output-enable inputs can be used to disable the device so that the buses are effectively isolated.

The dual-enable configuration of the 74ACT16620 gives the transceiver the capability to store data by simultaneously enabling OEAB and OEBA. Each output reinforces its input in this transceiver configuration. Thus, when both control inputs are enabled and all other data sources to the two sets of bus lines are at high impedance, the bus lines main at their last states.

The 74ACT16620 is packaged in TI's shrink small-outline package, which provides twice the I/O pin count and ionality of standard small-outline packages in the same printed-circuit-board area.

The 74ACT16620 is characterized for operation over the full military temperature range of 55°C to 125°C. The 620 is characterized for operation from 40°C to 85°C.