Data Sheet
2 Mbit / 4 Mbit SPI Serial Flash
SST25VF020 / SST25VF040
VIHT
VILT
INPUT
VHT
VLT
REFERENCE POINTS
VHT
VLT
OUTPUT
1231 F19.1
AC test inputs are driven at VIHT (0.9VDD) for a logic “1” and VILT (0.1VDD) for a logic “0”. Measurement reference points
for inputs and outputs are VHT (0.7VDD) and VLT (0.3VDD). Input rise and fall times (10% ↔ 90%) are <5 ns.
Note: VHT - VHIGH Test
VLT - VLOW Test
VIHT - VINPUT HIGH Test
VILT - VINPUT LOW Test
FIGURE 19: AC INPUT/OUTPUT REFERENCE WAVEFORMS
TO DUT
1231 F20.0
FIGURE 20: A TEST LOAD EXAMPLE
TO TESTER
CL
©2004 Silicon Storage Technology, Inc.
20
S71231-04-000
6/04