SN74ALVTH16501

Supply voltage range, V_CC   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . 0.5 V to 4.6 V

Input voltage range, V_I (see Note 1)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 V to 7 V
Voltage range applied to any output in the high or power-off state, V_O  (see Note 1)  . . . . . .  .0.5 V to 7 V
Output current in the low state, I_O  : SN54ALVTH16501 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . ... .96 mA
                                                           SN74ALVTH16501  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....128 mA
Output current in the high state, I_O  : SN54ALVTH16501 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 48 mA
                                                            SN74ALVTH16501 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . 64 mA
Input clamp current, I_IK  (V _I< 0)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..  .50 mA
Output clamp current, I_OK  (V_O  < 0)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  .  50 mA
Package thermal impedance, JA (see Note 2): DGG package  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81/W
                                                                                    DGV package  . . . . . . . . . . . . . . . . . . . . . . . . . .. 86/W
                                                                                    DL package  . . . . . . . . . . . . . . . . . . . . . . . . . .   . 74/W
Storage temperature range, T_stg   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65 to 150

The SN74ALVTH16501 devices are 18-bit universal bus transceivers designed for 2.5-V or 3.3-V V_CC  operation, but with the capability to provide a TTL interface to a 5-V system environment.

Data flow in each direction is controlled by output-enable (OEAB and OEBA ), latch-enable (LEAB and LEBA),and clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the devices operate in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLKAB. When OEAB is high, the B-port outputs are active. When OEAB is low, the B-port outputs are in the high-impedance state.Data flow for B to A is similar to that of A to B but uses OEBA, LEBA, and CLKBA. The output of SN74ALVTH16501 enables are complementary (OEAB is active high and  OEBA  is active low).

When V_CC  is between 0 and 1.2 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state of SN74ALVTH16501 above 1.2 V, OEBAshould be tied to V _CC through a pullup resistor and OEAB should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

The SN54ALVTH16501 is characterized for operation over the full military temperature range of 55 to 125 . The SN74ALVTH16501 is characterized for operation from 40 to 85 .