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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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S29GL01GS датащи(PDF) 67 Page - SPANSION |
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S29GL01GS датащи(HTML) 67 Page - SPANSION |
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67 / 106 page  October 9, 2013 S29GL_128S_01GS_00_08 GL-S MirrorBit® Family 67 Data She e t 8. Signal Protocols The following sections describe the host system interface signal behavior and timing for the 29GL-S family flash devices. 8.1 Interface States Table 8.1 describes the required value of each interface signal for each interface state. Legend: L = VIL H = VIH X = either VIL or VIH L/H = rising edge H/L = falling edge Valid = all bus signals have stable L or H level Modified = valid state different from a previous valid state Available = read data is internally stored with output driver controlled by OE# Notes: 1. WE# and OE# can not be at VIL at the same time. 2. Read with Output Disable is a read initiated with OE# High. 3. Automatic Sleep is a read/write operation where data has been driven on the bus for an extended period, without CE# going High and the device internal logic has gone into standby mode to conserve power. 8.2 Power-Off with Hardware Data Protection The memory is considered to be powered off when the core power supply (VCC) drops below the lock-out voltage (VLKO). When VCC is below VLKO, the entire memory array is protected against a program or erase operation. This ensures that no spurious alteration of the memory content can occur during power transition. During a power supply transition down to Power-Off, VIO should remain less than or equal to VCC. If VCC goes below VRST (Min) then returns above VRST (Min) to VCC minimum, the Power-On Reset interface state is entered and the EAC starts the Cold Reset Embedded Algorithm. Table 8.1 Interface States Interface State VCC VIO RESET# CE# OE# WE# AMAX-A0 DQ15-DQ0 Power-Off with Hardware Data Protection < VLKO ≤ VCC XX XX X High-Z Power-On (Cold) Reset ≥ VCC min ≥ VIO min ≤ VCC XX XX X High-Z Hardware (Warm) Reset ≥ VCC min ≥ VIO min ≤ VCC L X X X X High-Z Interface Standby ≥ VCC min ≥ VIO min ≤ VCC H H X X X High-Z Automatic Sleep (Notes 1, 3) ≥ VCC min ≥ VIO min ≤ VCC H L X X Valid Output Available Read with Output Disable (Note 2) ≥ VCC min ≥ VIO min ≤ VCC H L H H Valid High-Z Random Read ≥ VCC min ≥ VIO min H L L H Valid Output Valid Page Read ≥ VCC min ≥ VIO min ≤ VCC HL LH AMAX-A4 Valid A3-A0 Modified Output Valid Write ≥ VCC min ≥ VIO min ≤ VCC H L H L Valid Input Valid |
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