2.6.3.2 Timing Characteristics

The following table lists the timing characteristics of R-Cell.

Table 2-67. R-Cell Worst-Case Commercial Conditions VCCA = 1.425V, VCCI = 3.0V, T_J = 70 °C
Parameter	Description	–2 Speed		–1 Speed		Std Speed		Units
Parameter	Description	Min.	Max.	Min.	Max.	Min.	Max.	Units
R-Cell Propagation Delays
t_RCO	Sequential Clock-to-Q	—	0.67	—	0.77	—	0.90	ns
t_CLR	Asynchronous Clear-to-Q	—	0.67	—	0.77	—	0.90	ns
t_PRESET	Asynchronous Preset-to-Q	—	0.36	—	0.36	—	0.36	ns
t_SUD	Flip-flop data input set-up	—	0.34	—	0.34	—	0.34	ns
t_SUE	Flip-flop enable input set-up	—	0.00	—	0.00	—	0.00	ns
t_HD	Flip-flop data input hold	—	0.67	—	0.77	—	0.90	ns
t_HE	Flip-flop enable input hold	—	0.67	—	0.77	—	0.90	ns
t_WASYN	Asynchronous pulse width	0.48	—	0.48	—	0.48	—	ns
t_REASYN	Asynchronous recovery time	—	0.23	—	0.27	—	0.31	ns
t_HASYN	Asynchronous removal time	—	0.36	—	0.36	—	0.36	ns
t_CPWHL	Clock pulse width high to low	0.36	—	0.36	—	0.36	—	ns
t_CPWLH	Clock pulse width low to high	0.36	—	0.36	—	0.36	—	ns