The SY100E451JC-TR from Microchip Technology is a flip-flop Integrated Circuit with 1 element, D-type, 6-bit, positive edge, in a 28-LCC (J-Lead) package.
The SY100E451JY-TR from Microchip Technology is a single-element, 6-bit positive-edge D-type flip-flop Integrated Circuit in a 28-LCC (J-lead) package.
The SY100E451JI-TR from Microchip Technology is a D-type flip-flop Integrated Circuit with 1 element, 6 bits per element and positive edge triggering, in a 28-LCC (J-Lead) package.