SN74BCT29843

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 7 V
Voltage range applied to any output in the high state, V_O . . . . . . . . . . . . . . . . . ..  0.5 V to V_CC 
Input clamp current, I _IK (V _I < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA
Current into any output in the low state, I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .  96 mA
Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .  . . 0°C to 70°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 65°C to 150°C

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. This is a stress rating only, and functional operation of the device at these or any other conditions beyond those indicated in the "recommended operating conditions" section of this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 


Description

The SN74BCT29843 features 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. It is particularly
suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.


The SN74BCT29843 nine latches are transparent D-type latches. When the latch-enable (LE) input is high, the Q outputs are complementary to the noninverting data (D) inputs.


A SN74BCT29843 buffered output-enable (OE) input can be used to place the nine outputs in either a normal logic state (high or low level) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pull-up components.


The SN74BCT29843 output enable (OE) does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.


The SN74BCT29843 is characterized for operation from 0°C to 70°C.