In the paper new implementations of double edge-triggered (DET) flip-flops using one latch are presented. In the proposed circuits data are sampled into the latch during a short transparency period for each edge of the clock signal. Three implementations (dynamic, semi-static and static) of the one-latch DET flip-flop are presented and compared with standard two-latch DETs. SPICE simulations of power dissipation as a function of the switching activity of input signal are presented. One-latch DETs have reduced transistor count and lower power dissipation with respect to previously reported DET flip-flops. Power saving is relevant when an array of flip-flops share a single clock driver and for large input signal transition probability
Power Dissipation in One-latch and Two-latch Double Edge Triggered Flip-Flops / Strollo, ANTONIO GIUSEPPE MARIA; C., Cimino; Napoli, Ettore. - STAMPA. - 3:(1999), pp. 1419-1422. (Intervento presentato al convegno ICECS'99 tenutosi a Pafos, Cyprus nel 5-8, September 1999) [10.1109/ICECS.1999.814435].
Power Dissipation in One-latch and Two-latch Double Edge Triggered Flip-Flops
STROLLO, ANTONIO GIUSEPPE MARIA;NAPOLI, ETTORE
1999
Abstract
In the paper new implementations of double edge-triggered (DET) flip-flops using one latch are presented. In the proposed circuits data are sampled into the latch during a short transparency period for each edge of the clock signal. Three implementations (dynamic, semi-static and static) of the one-latch DET flip-flop are presented and compared with standard two-latch DETs. SPICE simulations of power dissipation as a function of the switching activity of input signal are presented. One-latch DETs have reduced transistor count and lower power dissipation with respect to previously reported DET flip-flops. Power saving is relevant when an array of flip-flops share a single clock driver and for large input signal transition probabilityI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.