Lattice Semiconductor ispXPGA Family Data Sheet
29
ispXPGA 125B/C & ispXPGA 125EB/EC PIC Timing Parameters
Reset/Set
t
LASSRO
Asynchronous Set/Reset to Output — 1.09 — 1.17 — 1.35 ns
t
LASSRPW
Asynchronous Set/Reset Pulse Width 4.19 — 4.50 — 5.18 — ns
t
LASSRR
Asynchronous Set/Reset Recovery — 0.51 — 0.55 — 0.63 ns
t
LSSR_S
Synchronous Set/Reset Setup Time -0.03 — -0.03 — -0.03 — ns
t
LSSR_H
Synchronous Set/Reset Hold Time 0.03 — 0.03 — 0.03 — ns
1. Only available for ispXPGA 125B and ispXPGA 125EB (2.5V/3.3V) devices. Timing v.0.3
2. t
LCTHRUL
quoted bit by bit.
Parameter Description
-5
1
-4 -3
UnitsMin. Max. Min. Max. Min. Max.
Register/Latch Delays
t
IO_CO
Register Clock to Output Delay — 0.89 — 0.96 — 1.10 ns
t
IO_S
Register Setup Time (Data before Clock) 0.05 — 0.05 — 0.06 — ns
t
IO_H
Register Hold Time (Data after Clock) 0.06 — 0.06 — 0.07 — ns
t
IOCE_S
Register Clock Enable Setup Time -0.03 — -0.03 — -0.03 — ns
t
IOCE_H
Register Clock Enable Hold Time 0.13 0.13 — 0.15 — ns
t
IO_GO
Latch Gate to Output Delay — 0.68 — 0.73 — 0.84 ns
t
IOL_S
Latch Setup Time 0.05 — 0.05 — 0.06 — ns
t
IOL_H
Latch Hold Time 0.06 — 0.06 — 0.07 — ns
t
IOLPD
Latch Propagation Delay (Transparent Mode) — 0.09 — 0.10 — 0.12 ns
t
IOASRO
Asynchronous Set/Reset to Output — 1.00 — 1.08 — 1.24 ns
t
IOASRPW
Asynchronous Set/Reset Pulse Width 4.19 — 4.50 — 5.18 — ns
t
IOASRR
Asynchronous Set/Reset Recovery Time — 0.23 — 0.25 — 0.29 ns
Input/Output Delays
t
IOBUF
Output Buffer Delay — 0.97 — 1.04 — 1.20 ns
t
IOIN
Input Buffer Delay — 0.57 — 0.61 — 0.70 ns
t
IOEN
Output Enable Delay — 0.53 — 0.57 — 0.66 ns
t
IODIS
Output Disable Delay — -0.14 — -0.13 — -0.11 ns
t
IOFT
Feed-thru Delay — 0.19 — 0.20 — 0.23 ns
1. Only available for ispXPGA 125B and ispXPGA 125EB (2.5V/3.3V) devices. Timing v.0.3
ispXPGA 125B/C & ispXPGA 125EB/EC PFU Timing Parameters (Cont.)
Over Recommended Operating Conditions
Parameter Description
-5
1
-4 -3
UnitsMin. Max. Min. Max. Min. Max.