LCMXO256C-5TN100C LATTICE SEMICONDUCTOR, LCMXO256C-5TN100C Datasheet - Page 173

• Manufacturer Part Number: LCMXO256C-5TN100C
• Description: MACHXO PLD FLASH, SCRAM 1.8V, 256
• Manufacturer: LATTICE SEMICONDUCTOR
• Series: MachXOr

Specifications of LCMXO256C-5TN100C

• Cpld Type: FLASH
• No. Of Macrocells: 128
• No. Of I/o's: 78
• Propagation Delay: 3.5ns
• Global Clock Setup Time: 1.3ns
• Frequency: 600MHz
• Supply Voltage Range: 1.71V To 3.465V
• Operating: RoHS Compliant

Lattice Semiconductor
Divider Mode
In this mode, the user sets the divider settings with input frequency. The user must choose the CLKOP Divider
value to maximize the f
complete, clicking the Calculate button will display the frequencies. Figure 10-8 shows the Divider Mode Configura-
tion tab.
Figure 10-8. MachXO PLL Configuration Tab (Divider Mode) - also see Diamond screen shot, Appendix A,
Figure 10-19
Frequency Programming in Divider Mode for Advanced Users
Table 10-5. Frequency Limits
f
f
f
f
CLKI Divider
CLKFB Divider
CLKOP Divider
CLKOK Divider
Maximum (N*V)
f
IN
OUT
OUTK
VCO
PFD
(f
(Hz)
IN
VCO
Parameter
/M) (Hz)
to achieve optimum PLL performance. After input frequency and divider settings are
Refer to the
Refer to the
Refer to the
Refer to the
1 to 16
1 to 16
2, 4, 8, 16, 32 (CLKOS used)
2, 4, 6, 8,... 28, 30, 32 (CLKOS not used)
2, 4, 6, 8,..,126, 128
32
Refer to the
MachXO Family Data Sheet
MachXO Family Data Sheet
MachXO Family Data Sheet
MachXO Family Data Sheet
MachXO Family Data Sheet
10-11
Value
for frequency data.
for frequency data.
for frequency data.
for frequency data.
for frequency data.
Design and Usage Guide
MachXO sysCLOCK PLL