SN74AHCT16541

Members of the Texas InstrumentsWidebus^TM Family
EPIC^TM (Enhanced-Performance ImplantedCMOS) Process
Inputs Are TTL-Voltage Compatible
Distributed V_CCand GND Pins MinimizeHigh-Speed Switching Noise
Flow-Through Architecture Optimizes PCBLayout
Latch-Up Performance Exceeds 250 mA PeJESD 17
Package Options Include Plastic Shrink
Small-Outline (DL), Thin Shrink
Small-Outline (DGG), and Thin Very
Small-Outline (DGV) Packages and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
Using 25-mil Center-to-Center Spacings

Supply voltage range, V_CC. . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .  0.5 V to 7 V
Input voltage range, V_I (see Note 1)  . . . . . . . . . . . . . . .  .   . . . . . . . . . . . . . . .  0.5 V to 7 V
Output voltage range, V_O(see Note 1)  . . . . . . . . . . . . . . .  . . . . . . . . . . 0.5 V to V_CC+ 0.5 V
Input clamp current, I_IK (V_I< 0)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20 mA
Output clamp current, I_OK(V_O  0 or V_O > V_CC )  . . . . . . . . . . .  . . . . . . . . . . . . . . . . . .  ±20 mA
Continuous output current, I_O (V_O = 0 to V_CC)  . . . . . . . . . . . . . . . . . .  . . . . . . . . . . .  ±25 mA
Continuous current through each V_CC or GND  . . . . . . . . . .  . . . . . . . . . . . . . . . . . . .   ±75 mA
Package thermal impedance, _JA (see Note 2): DGG package  . . . . . . . . . . . . . .. . . . . . . 70/W
                                                                        DGV package  . . . . . . . . . . . . . . . . . . . . . 58/W
                                                                        DL package  . . . . . . . . . . . ...... . . . . . . . . 63/W
Storage temperature range, T_stg  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .65 to 150

The 'AHCT16541 devices are noninverting 16-bitbuffers composed of two 8-bit sections withseparate output-enable signals. For either 8-bitbuffer section, the two output-enable (1OE1 and1OE2 or 2OE1 and 2OE2) inputs must both be lowfor the corresponding Y outputs to be active. Ifeither output-enable input is high, the outputs ofthat 8-bit buffer section are in the high-impedancestate.
To ensure the high-impedance state of  'AHCT16541  during power up or power down, OE should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54AHCT16541 is characterized for operation over the full military temperature range of 55°C to 125°C.The SN74AHCT16541 is characterized for operation from 40°C to 85°C.