PALLV22V10 Datasheet, PDF (12/19 Pages) Lattice Semiconductor – Low-Voltage Zero Power 24-Pin EE CMOS Versatile PAL Device

SWITCHING WAVEFORMS
Input or
Feedback
Combinatorial
Output
Clock
Input
Asserting
Asynchronous
Reset
Registered
Output
Clock
Input or
Feedback
V_T
V_T
t_S
t_H
t_PD
Clock
V_T
18956D-007
Registered
Output
V_T
t_CO
V_T
18956D-008
a. Combinatorial output
FOR^{b. Registered output}
S _tWH
ICE ^{S VT}
N _tWL
DEV ^SIG c. Clock width
18956D-009
Input
Output
V_T
t_ER
t_EA
V_OH - 0.5V
V_OL + 0.5V
V_T
18956D-010
d. Input to output disable/enable
AL ^DE _tARW
G ^W _VT
E ^E _tAR
US ^{N VT}
Input
Asserting
Synchronous
Preset
Clock
V_T
t_S
t_H
t_SPR
V_T
t_ARR
V_T
Registered
Output
t_CO
V_T
e. Asynchronous reset
18956D-011
18956D-012
f. Synchronous preset
Notes:
1. V_T = 1.5 V for inputs signals and V_CC/2 for outputs signals.
2. Input pulse amplitude 0 V to 3.0 V.
3. Input rise and fall times 2 ns to 5 ns typical.
12
PALLV22V10 and PALLV22V10Z Families