Quad-Serial Configuration (EPCQ) Devices Datasheet

ID 683078
Date 1/23/2020
Public
Document Table of Contents

1.9.1. Write Operation Timing

Figure 22. Write Operation Timing Diagram


Table 33.  Write Operation Parameters
Symbol Parameter Min Typical Max Unit
fWCLK Write clock frequency (from the FPGA, download cable, or embedded processor) for write enable, write disable, read status, read device identification, write bytes, erase bulk, and erase sector operations for all devices except EPCQ512/A 108 MHz
Write clock frequency (from the FPGA, download cable, or embedded processor) for write enable, write disable, read status, read device identification, write bytes, erase bulk, and erase sector operations for EPCQ512/A 133 MHz
tCH 19 DCLK high time for all devices except EPCQ512/A 4 ns
DCLK high time for EPCQ512/A 3.375 ns
tCL 19 DCLK low time for all devices except EPCQ512/A 4 ns
DCLK low time for EPCQ512/A 3.375 ns
tNCSSU Chip select (nCS) setup time for all devices except EPCQ512/A 4 ns
DCLK low time for EPCQ512/A 3.375 ns
tNCSH Chip select (nCS) hold time for all devices except EPCQ512/A 4 ns
Chip select (nCS) hold time for EPCQ512/A 3.375 ns
tDSU DATA[] in setup time before the rising edge on DCLK for all devices except EPCQ512/A 2 ns
DATA[] in setup time before the rising edge on DCLK for EPCQ512/A 1.75 ns
tDH DATA[] hold time after the rising edge on DCLK for all devices except EPCQ512/A 3 ns
DATA[] hold time after the rising edge on DCLK for EPCQ512/A 2.5 ns
tCSH Chip select (nCS) high time 50 ns
tWB 20 Write bytes cycle time 0.6 5 ms
tWS 20 Write status cycle time 1.3 8 ms
tEB 20 Erase bulk cycle time for EPCQ16 30 60 s
Erase bulk cycle time for EPCQ32 30 60
Erase bulk cycle time for EPCQ64 60 250
Erase bulk cycle time for EPCQ128 170 250
Erase bulk cycle time for EPCQ256 240 480
Erase bulk cycle time for EPCQ512/A 153 460
tES 20 Erase sector cycle time for all devices except EPCQ512/A 0.7 3 s
Erase sector cycle time for EPCQ512/A 0.15 1
tESS 20 Erase subsector cycle time for all devices except EPCQ512/A 0.3 1.5 s
Erase subsector cycle time for EPCQ512/A 0.05 0.4
19 The value must be larger /than or equal to 1/f WCLK.
20 The Write Operation Timing Diagram does not show these parameters.