SST32HF1642 Datasheet, PDF (21/36 Pages) Silicon Storage Technology, Inc – Multi-Purpose Flash Plus + SRAM ComboMemory

Multi-Purpose Flash Plus + SRAM ComboMemory
SST32HF1642 / SST32HF1682 / SST32HF3242 / SST32HF3282
SST32HF1622C / SST32HF1642C / SST32HF3242C
ADDRESS AMS-0
5555
SIX-BYTE CODE FOR BLOCK-ERASE
2AAA
5555
5555
2AAA
BAX
Preliminary Specifications
TBE
BEF#
OE#
WE#
TWP
DQ15-0
XXAA
SW0
XX55
SW1
XX80
SW2
XXAA
SW3
XX55
SW4
XX50
SW5
Note: A_MSF = Most Significant Flash Address
A_MSF = A₁₉ for SST32HF16x2x and A₂₀ for SST32HF32x2x
This device also supports BEF# controlled Block-Erase operation.
The WE# and BEF# signals are interchangeable as long as minimum timings are meet. (See Table 14.)
BA_X = Block Address
WP# must be held in proper logic state (V_IL or V_IH) 1 µs prior to and 1 µs after the command sequence
X can be V_IL or V_IH, but no other value.
FIGURE 12: WE# CONTROLLED FLASH BLOCK-ERASE TIMING DIAGRAM
1253 F13.0
©2005 Silicon Storage Technology, Inc.
21
S71253-03-000
5/05