R
Platform Flash In-System Programmable Configuration PROMs
XCF08P, XCF16P,
XCF32P
Symbol
Description
Units
Min
300
300
300
300
300
300
Max
EN_EXT_SEL hold time from CF, CE, or OE/RESET when VCCO = 3.3V or 2.5V
EN_EXT_SEL hold time from CF, CE, or OE/RESET when VCCO = 1.8V
REV_SEL setup time to CF, CE, or OE/RESET when VCCO = 3.3V or 2.5V
REV_SEL setup time to CF, CE, or OE/RESET when VCCO = 1.8V
REV_SEL hold time from CF, CE, or OE/RESET when VCCO = 3.3V or 2.5V
REV_SEL hold time from CF, CE, or OE/RESET when VCCO = 1.8V
–
–
–
–
–
–
ns
ns
ns
ns
ns
ns
THXT
TSRV
THRV
Notes:
1. AC test load = 50 pF for XCF01S/XCF02S/XCF04S; 30 pF for XCF08P/XCF16P/XCF32P.
2. Float delays are measured with 5 pF AC loads.Transition is measured at 200 mV from steady-state active levels.
3. Guaranteed by design, not tested.
4. All AC parameters are measured with V = 0.0V and V = 3.0V.
IL
IH
5. If T
6. If T
High < 2 µs, T = 2 µs.
HCE
CE
Low < 2 µs, T = 2 µs.
HOE
OE
7. This is the minimum possible T
. Actual T
= T
+ FPGA Data setup time. Example: With the XCF32P in serial mode with V
CYCO
CYCO
CYCO
CCDD CCO
at 3.3V, if FPGA Data setup time = 15 ns, then the actual T
= 25 ns +15 ns = 40 ns.
8. The delay before the enabled CLKOUT signal begins clocking data out of the device is dependent on the clocking configuration. The delay
before CLKOUT is enabled increases if decompression is enabled.
9. Slower CLK frequency option might be required to meet the FPGA data sheet setup time.
10. When decompression is enabled, the CLKOUT signal becomes a controlled clock output. When decompressed data is available, CLKOUT
toggles at ½ the source clock frequency (either ½ the selected internal clock frequency or ½ the external CLK input frequency). When
decompressed data is not available, the CLKOUT pin is parked High. If CLKOUT is used, then it must be pulled High externally using a
4.7 kΩ pull-up to V
.
CCO
11. When JTAG CONFIG command is issued, PROM drives CF Low for at least the T
minimum.
HCF
DS123 (v2.18) May 19, 2010
www.xilinx.com
Product Specification
20
XILINX [ XILINX, INC ]
