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S29AL016 View Datasheet(PDF) - Spansion Inc.

Part NameDescriptionManufacturer
S29AL016 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory Spansion
Spansion Inc. Spansion
S29AL016 Datasheet PDF : 55 Pages
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Data Sheet
Figure 11.1 Data# Polling Algorithm
START
Read DQ7–DQ0
Addr = VA
DQ7 = Data?
Yes
No
No
DQ5 = 1?
Yes
Read DQ7–DQ0
Addr = VA
DQ7 = Data?
Yes
No
FAIL
PASS
Notes
1. VA = Valid address for programming. During a sector erase operation, a valid address is an address within any sector selected for
erasure. During chip erase, a valid address is any non-protected sector address.
2. DQ7 should be rechecked even if DQ5 = 1 because DQ7 may change simultaneously with DQ5.
11.2
RY/BY#: Ready/Busy#
The RY/BY# is a dedicated, open-drain output pin that indicates whether an Embedded Algorithm is in
progress or complete. The RY/BY# status is valid after the rising edge of the final WE# pulse in the command
sequence. Since RY/BY# is an open-drain output, several RY/BY# pins can be tied together in parallel with a
pull-up resistor to VCC.
If the output is low (Busy), the device is actively erasing or programming. (This includes programming in the
Erase Suspend mode.) If the output is high (Ready), the device is ready to read array data (including during
the Erase Suspend mode), or is in the standby mode.
Table 11.1 on page 35 shows the outputs for RY/BY#. Figures Figure 17.1 on page 40, Figure 17.2
on page 41, Figure 17.5 on page 43 and Figure 17.6 on page 44 shows RY/BY# for read, reset, program,
and erase operations, respectively.
32
S29AL016D
S29AL016D_00_A8 February 27, 2009
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