2.3.10.2 Timing Characteristics

The following table lists the timing characteristics of 1.5V LVCMOS.

Table 2-36. 1.5V LVCMOS I/O Module Worst-Case Commercial Conditions VCCA = 1.425V, VCCI = 1.4V, T_J = 70 °C
Parameter	Description	–2 Speed		–1 Speed		Std Speed		Units
Parameter	Description	Min.	Max.	Min.	Max.	Min.	Max.	Units
LVCMOS15 (JESD8-11) I/O Module Timing
t_DP	Input buffer	—	3.59	—	4.09	—	4.81	ns
t_PY	Output buffer	—	6.05	—	6.89	—	8.10	ns
t_ENZL	Enable to pad delay through the output buffer—Z to low	—	3.31	—	3.34	—	3.34	ns
t_ENZH	Enable to pad delay through the output buffer—Z to high	—	4.56	—	4.58	—	4.59	ns
t_ENLZ	Enable to pad delay through the output buffer—low to Z	—	6.37	—	7.25	—	8.52	ns
t_ENHZ	Enable to pad delay through the output buffer—high to Z	—	6.94	—	7.90	—	9.29	ns
t_IOCLKQ	Sequential Clock-to-Q for the I/O input register	—	0.67	—	0.77	—	0.90	ns
t_IOCLKY	Clock-to-output Y for the I/O output register and the I/O enable register	—	0.67	—	0.77	—	0.90	ns
t_SUD	Data input set-up	—	0.23	—	0.27	—	0.31	ns
t_SUE	Enable input set-up	—	0.26	—	0.30	—	0.35	ns
t_HD	Data input hold	—	0.00	—	0.00	—	0.00	ns
t_HE	Enable input hold	—	0.00	—	0.00	—	0.00	ns
t_CPWHL	Clock pulse width high to low	0.39	—	0.39	—	0.39	—	ns
t_CPWLH	Clock pulse width low to high	0.39	—	0.39	—	0.39	—	ns
t_WASYN	Asynchronous pulse width	0.37	—	0.37	—	0.37	—	ns
t_REASYN	Asynchronous recovery time	—	0.13	—	0.15	—	0.17	ns
t_HASYN	Asynchronous removal time	—	0.00	—	0.00	—	0.00	ns
t_CLR	Asynchronous Clear-to-Q	—	0.23	—	0.27	—	0.31	ns
t_PRESET	Asynchronous Preset-to-Q	—	0.23	—	0.27	—	0.31	ns