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WSF128K32-22H2CA Datasheet(PDF) 5 Page - White Electronic Designs Corporation |
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WSF128K32-22H2CA Datasheet(HTML) 5 Page - White Electronic Designs Corporation |
5 / 12 page 5 White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com White Electronic Designs WSF128K32-XH2X October 2004 Rev. 4 White Electronic Designs Corp. reserves the right to change products or specifications without notice. PRELIMINARY FLASH AC CHARACTERISTICS – WRITE/ERASE/PROGRAM OPERATIONS, FWE# CONTROLLED VCC = 5.0V, -55°C ≤ TA ≤ +125°C Parameter Symbol -70 -90 -120 Unit Min Max Min Max Min Max Write Cycle Time tAVAV tWC 70 90 120 ns Chip Select Setup Time tELWL tCS 000 ns Write Enable Pulse Width tWLWH tWP 45 45 50 ns Address Setup Time tAVWL tAS 000 ns Data Setup Time tDVWH tDS 45 45 50 ns Data Hold Time tWHDX tDH 000 ns Address Hold Time tWLAX tAH 45 45 50 ns Chip Select Hold Time tWHEH tCH 000 ns Write Enable Pulse Width High tWHWL tWPH 20 20 20 ns Duration of Byte Programming Operation (min) tWHWH1 14 14 14 µs Chip and Sector Erase Time tWHWH2 2.2 60 2.2 60 2.2 60 sec Read Recovery Time Before Write tGHWL 000 µs VCC Set-up Time tVCS 50 50 50 µs Chip Programming Time 12.5 12.5 12.5 sec Output Enable Setup Time tOES 000 ns Output Enable Hold Time (1) tOEH 10 10 10 ns 1. For Toggle and Data# Polling. FLASH AC CHARACTERISTICS – READ ONLY OPERATIONS VCC = 5.0V, -55°C ≤ TA ≤ +125°C Parameter Symbol -70 -90 -120 Unit Min Max Min Max Min Max Read Cycle Time tAVAV tRC 70 90 120 ns Address Access Time tAVQV tACC 70 90 120 ns Chip Select Access Time tELQV tCE 70 90 120 ns OE# to Output Valid tGLQV tOE 35 40 50 ns Chip Select to Output High Z (1) tEHQZ tDF 20 25 30 ns OE# High to Output High Z (1) tGHQZ tDF 20 25 30 ns Output Hold from Address, FCS# or OE# Change, whichever is first tAXQX tOH 000 ns 1. Guaranteed by design, not tested. |
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