Datasheet
Table Of Contents
- Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
- Introduction
- DC Characteristics
- Power-On/Off Power Supply Sequencing
- DC Input and Output Levels
- AC Switching Characteristics
- Performance Characteristics
- IOB Pad Input/Output/3-State
- I/O Standard Adjustment Measurement Methodology
- Input/Output Logic Switching Characteristics
- Input Serializer/Deserializer Switching Characteristics
- Output Serializer/Deserializer Switching Characteristics
- Input/Output Delay Switching Characteristics
- CLB Switching Characteristics
- CLB Distributed RAM Switching Characteristics (SLICEM Only)
- CLB Shift Register Switching Characteristics (SLICEM Only)
- Block RAM and FIFO Switching Characteristics
- DSP48E1 Switching Characteristics
- Clock Buffers and Networks
- MMCM Switching Characteristics
- PLL Switching Characteristics
- Device Pin-to-Pin Output Parameter Guidelines
- Device Pin-to-Pin Input Parameter Guidelines
- Additional Package Parameter Guidelines
- XADC Specifications
- Configuration Switching Characteristics
- eFUSE Programming Conditions
- References
- Revision History
- Please Read: Important Legal Notices
Spartan-7 FPGAs Data Sheet: DC and AC Switching Characteristics
DS189 (v1.9) March 13, 2019 www.xilinx.com
Product Specification 51
Additional Package Parameter Guidelines
The parameters in this section provide the necessary values for calculating timing budgets for Spartan-7
FPGA clock transmitter and receiver data-valid windows.
Table 49: Package Skew
(1)
Symbol Description Device Package Value Units
T
PKGSKEW
Package skew.
(2)
XC7S6
CPGA196 44 ps
CSGA225 83 ps
FTGB196 65 ps
XC7S15
CPGA196 44 ps
CSGA225 83 ps
FTGB196 65 ps
XC7S25
CSGA225 93 ps
CSGA324 62 ps
FTGB196 83 ps
XC7S50
CSGA324 80 ps
FGGA484 110 ps
FTGB196 103 ps
XC7S75
FGGA484 117 ps
FGGA676 110 ps
XC7S100
FGGA484 117 ps
FGGA676 110 ps
XA7S6
CPGA196 44 ps
CSGA225 83 ps
XA7S15
CPGA196 44 ps
CSGA225 83 ps
XA7S25
CSGA225 93 ps
CSGA324 62 ps
XA7S50
CSGA324 80 ps
FGGA484 110 ps
XA7S75
FGGA484 117 ps
FGGA676 110 ps
XC7S100
FGGA484 117 ps
FGGA676 110 ps
Notes:
1. Package delay information is available for these device/package combinations. This information can be used to deskew the package.
2. These values represent the worst-case skew between any two SelectIO resources in the package: shortest delay to longest delay from die pad
to ball.
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