HCF4099B is a monolithic integrated circuit fabricated in Metal Oxide Semiconductor technology.

 

HCF4099B, an 8-bit addressable latch, is a serial-input, parallel output storage register that can perform a variety of functions. Data is input to a particular bit in the latch when that bit is addressed (by means of input A0, A1, A2) and when WRITE DISABLE is at a low level. When WRITE DISABLE is high, data entry is inhibited; however, all 8 outputs can be continuously read independent of WRITE DISABLE and address inputs. A master RESET input is available, which resets all bits to a logic "0" level when RESET and WRITE DISABLE are at a high level. When RESET is at a high level, and WRITE DISABLE is at a low level, the latch acts as a 1-of-8 demultiplexer ; the bit that is addressed has an active output which follows the data input, while all unaddressed bits are held to a logic "0" level.

 

Key Features:

• Serial data input - Active parallel output
• Storage register capability master clear
• Can function as demultiplexer
• Quiescent current specified up to 20v
• Standardized symmetrical output characteristics
• Input leakage current ii = 100na (max) at vdd = 18v ta = 25 °c
• 100% tested for quiescent current
• Meets all requirements of JEDEC JESD13B "standard specifications for description of b series CMOS devices"

Data sheet