Overview
HCF4042BC1 is listed in the Logic IC category. Available datasheets include documents from STMicroelectronics.
Summary
QUAD CLOCKED D LATCH Jun-1989
Description
The HCC4042B (extended temperature range) and HCF4042B (intermediate temperature range) are monolithic integrated circuit, available in 16-lead dual in-line plastic or ceramic package and plastic micro package. The HCC/HCF4042B types contain four latch circuits, each strobed by a common clock. Complementary buffered outputs are available from each circuit. The impedance of the n- and p-channel output devices is balanced and all outputs are electrically identical. Information present at the data input is transferred to outputs Q and Q during the CLOCK level which is programmed by the POLARITY input. For POLARITY= 0 the transfer occurs during the 0 CLOCK level and for POLARITY = 1 the transfer occurs during the 1 CLOCK level. The outputs follow the data input providing the CLOCK and POLARITY levels defined above are present. When a CLOCK transition occurs (positive for POLARITY= 0 and negative for POLARITY = 1) the information present at the input during the CLOCK transition is retained at the outputs until an opposite CLOCK transition occurs. EY (Plastic Package) F (Ceramic Package) M1 (Micro Package) C1 (Plastic Chip Carrier)