DS541 Datasheet, PDF (21/27 Pages) Xilinx, Inc – Defense Grade Platform Flash In-System Programmable Configuration PROM

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Defense Grade Platform Flash In-System Programmable Configuration PROM
Table 14: XQF32P PROM as Configuration Master with Internal Oscillator as Clock Source (Cont’d)
Symbol
Description
XQF32P
Min
Max
T_SRV
T_HRV
FF
FS
REV_SEL setup time to CF, CE, or OE/RESET when V_CCO = 3.3V or 2.5V
REV_SEL setup time to CF, CE, or OE/RESET when V_CCO = 1.8V
REV_SEL hold time from CF, CE, or OE/RESET when V_CCO = 3.3V or 2.5V
REV_SEL hold time from CF, CE, or OE/RESET when V_CCO = 1.8V
CLKOUT default (fast) frequency⁽⁹⁾
CLKOUT default (fast) frequency with decompression⁽¹¹⁾
CLKOUT alternate (slower) frequency⁽¹⁰⁾
CLKOUT alternate (slower) frequency with decompression⁽¹¹⁾
300
–
300
–
300
–
300
–
25
50
12.5
25
12.5
25
6
12.5
Units
ns
ns
ns
ns
MHz
MHz
MHz
MHz
Notes:
1. AC test load = 30 pF for XQF32P.
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_IL = 0.0V and V_IH = 3.0V.
5. If T_HCE High < 2 µs, T_CE = 2 µs.
6. If T_HOE Low < 2 µs, T_OE = 2 µs.
7. 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.
8. Slower CLK frequency option can be required to meet the FPGA data sheet setup time.
9. Typical CLKOUT default (fast) period = 25 ns (40 MHz)
10. Typical CLKOUT alternate (slower) period = 50 ns (20 MHz)
11. 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 4.7kΩ
pull-up to V_CCO.
12. When JTAG CONFIG command is issued, PROM drives CF Low for at least the THCF minimum.
DS541 (v3.0) August 5, 2015
Product Specification
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