SN74BCT2244

Pinout




Specifications

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
Voltage range applied to any output in the disabled or power-off state, V_O . 0.5 V to 5.5 V
Voltage range applied to any output in the high state, V_O. . . . . . . . . . . . . . . .  0.5 V to V_CC 
Input clamp current, I_IK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30 mA
Current into any output in the low state, I_O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 mA
Package thermal impedance, JA (see Note 2): DW package. . . . . . . . . . . . . . . . . . . 58°C/W
                                                                           N package . . . . . . . . . . . . . . . . . . . . 69°C/W
                                                                           NS package. . . . . . . . . . . . . . . . . . . . 60°C/W
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65  to 150
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.


Description

The 'BCT2244 devices are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the 'BCT2240 devices and SN74BCT2241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in.


To ensure the high-impedance state during power up or power down, BCT2244 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 BCT2244 outputs, which are designed to source or sink up to 12 mA, include 33-? series resistors to reduce overshoot and undershoot.