
Lattice Semiconductor
ispMACH 4000ZE Family Data Sheet
28
tSRR
Asynchronous Reset or Set Recovery Delay
—
1.80
—
1.67
ns
Control Delays
tBCLK
GLB PT Clock Delay
—
1.45
—
0.95
ns
tPTCLK
Macrocell PT Clock Delay
—
1.45
—
1.15
ns
tBSR
Block PT Set/Reset Delay
—
1.85
—
1.83
ns
tPTSR
Macrocell PT Set/Reset Delay
—
1.85
—
2.72
ns
tBIE
Power Guard Block Input Enable Delay
—
1.75
—
1.95
ns
tPTOE
Macrocell PT OE Delay
—
2.40
—
1.90
ns
tGPTOE
Global PT OE Delay
—
4.20
—
3.40
ns
Internal Oscillator
tOSCSU
Oscillator DYNOSCDIS Setup Time
5.00
—
5.00
—
ns
tOSCH
Oscillator DYNOSCDIS Hold Time
5.00
—
5.00
—
ns
tOSCEN
Oscillator OSCOUT Enable Time (To Stable)
—
5.00
—
5.00
ns
tOSCOD
Oscillator Output Delay
—
4.00
—
4.00
ns
tOSCNOM
Oscillator OSCOUT Nominal Frequency
5.00
MHz
tOSCvar
Oscillator Variation of Nominal Frequency
—
30
—
30
%
tTMRCO20
Oscillator TIMEROUT Clock (Negative Edge) to Out
(20-Bit Divider)
—
12.50
—
14.50
ns
tTMRCO10
Oscillator TIMEROUT Clock (Negative Edge) to Out
(10-Bit Divider)
—
7.50
—
9.50
ns
tTMRCO7
Oscillator TIMEROUT Clock (Negative Edge) to Out
(7-Bit Divider)
—
6.00
—
8.00
ns
tTMRRSTO
Oscillator TIMEROUT Reset to Out (Going Low)
—
5.00
—
7.00
ns
tTMRRR
Oscillator TIMEROUT Asynchronous Reset Recovery
Delay
—
4.00
—
6.00
ns
tTMRRSTPW
Oscillator TIMEROUT Reset Minimum Pulse Width
3.00
—
5.00
—
ns
Optional Delay Adjusters
Base Parameter
tINDIO
Input Register Delay
tINREG
—
1.60
—
2.60
ns
tEXP
Product Term Expander Delay
tMCELL
—
0.45
—
0.50
ns
tBLA
Additional Block Loading Adders
tROUTE
—
0.05
—
0.05
ns
tIOI Input Buffer Delays
LVTTL_in
Using LVTTL Standard with
Hysteresis
tIN, tGCLK_IN, tGOE
—
0.60
—
0.60
ns
LVCMOS15_in
Using LVCMOS 1.5 Standard
tIN, tGCLK_IN, tGOE
—
0.20
—
0.20
ns
LVCMOS18_in
Using LVCMOS 1.8 Standard
tIN, tGCLK_IN, tGOE
—
0.00
—
0.00
ns
LVCMOS25_in
Using LVCMOS 2.5 Standard with
Hysteresis
tIN, tGCLK_IN, tGOE
—
0.80
—
0.80
ns
LVCMOS33_in
Using LVCMOS 3.3 Standard with
Hysteresis
tIN, tGCLK_IN, tGOE
—
0.80
—
0.80
ns
PCI_in
Using PCI Compatible Input with
Hysteresis
tIN, tGCLK_IN, tGOE
—
0.80
—
0.80
ns
tIOO Output Buffer Delays
LVTTL_out
Output Congured as TTL Buffer
tEN, tDIS, tBUF
—
0.20
—
0.20
ns
ispMACH 4000ZE Internal Timing Parameters (Cont.)
Over Recommended Operating Conditions
Parameter
Description
All Devices
Units
-5
-7
Min.
Max.
Min.
Max.