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SST39WF400A-100-4I-M1Q Datasheet(PDF) 6 Page - Silicon Storage Technology, Inc |
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SST39WF400A-100-4I-M1Q Datasheet(HTML) 6 Page - Silicon Storage Technology, Inc |
6 / 26 page 6 Data Sheet 4 Mbit Multi-Purpose Flash SST39WF400A ©2004 Silicon Storage Technology, Inc. S71220-05-000 6/04 TABLE 2: PIN DESCRIPTION Symbol Pin Name Functions AMS1-A0 Address Inputs To provide memory addresses. During Sector-Erase AMS-A11 address lines will select the sector. During Block-Erase AMS-A15 address lines will select the block. DQ15-DQ0 Data Input/output To output data during Read cycles and receive input data during Write cycles. Data is internally latched during a Write cycle. The outputs are in tri-state when OE# or CE# is high. CE# Chip Enable To activate the device when CE# is low. OE# Output Enable To gate the data output buffers. WE# Write Enable To control the Write operations. VDD Power Supply To provide power supply voltage: 1.65-1.95V for SST39WF400A VSS Ground NC No Connection Unconnected pins. T2.0 1220 1. AMS = Most significant address AMS = A17 for SST39WF400A TABLE 3: OPERATION MODES SELECTION Mode CE# OE# WE# DQ Address Read VIL VIL VIH DOUT AIN Program VIL VIH VIL DIN AIN Erase VIL VIH VIL X1 1. X can be VIL or VIH, but no other value. Sector or Block address, XXH for Chip-Erase Standby VIH X X High Z X Write Inhibit X VIL X High Z/ DOUT X XX VIH High Z/ DOUT X Product Identification Software Mode VIL VIL VIH See Table 4 T3.0 1220 |
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