am49lv128bm Meet Spansion Inc., am49lv128bm Datasheet - Page 26

• Manufacturer Part Number: am49lv128bm
• Description: Stacked Multi-chip Package Mcp ,128 Megabit 8 M ? 16-bit ,uniform Sector Flash Memory And 32 Mbit 2 M ? 16-bit Pseudo-static Ram With Page Mode Featuring Mirrorbit Technology,supplemental Datasheet
• Manufacturer: Meet Spansion Inc.

COMMAND DEFINITIONS
Writing specific address and data commands or se-
quences into the command register initiates device op-
erations. Table 9 defines the valid register command
sequences. Writing incorrect address and data values
or writing them in the improper sequence may place
the device in an unknown state. A reset command is
then required to return the device to reading array
data.
All addresses are latched on the falling edge of WE#
or CE#, whichever happens later. All data is latched on
the rising edge of WE# or CE#, whichever happens
24
Addresses (x16)
4Ah
4Bh
4Ch
4Dh
4Eh
4Fh
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
50h
0004h/
00C5h
00B5h
0050h
0052h
0049h
0031h
0033h
0008h
0002h
0001h
0001h
0004h
0000h
0000h
0001h
0005h
0001h
Data
Table 8. Primary Vendor-Specific Extended Query
Query-unique ASCII string “PRI”
Major version number, ASCII
Minor version number, ASCII
Address Sensitive Unlock (Bits 1-0)
0 = Required, 1 = Not Required
Process Technology (Bits 7-2) 0010b = 0.23 µm MirrorBit
Erase Suspend
0 = Not Supported, 1 = To Read Only, 2 = To Read & Write
Sector Protect
0 = Not Supported, X = Number of sectors in per group
Sector Temporary Unprotect
00 = Not Supported, 01 = Supported
Sector Protect/Unprotect scheme
04 = 29LV800 mode
Simultaneous Operation
00 = Not Supported, X = Number of Sectors in Bank
Burst Mode Type
00 = Not Supported, 01 = Supported
Page Mode Type
00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page
ACC (Acceleration) Supply Minimum
00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV
ACC (Acceleration) Supply Maximum
00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV
Top/Bottom Boot Sector Flag
00h = Uniform Device without WP# protect, 02h = Bottom Boot Device, 03h = Top
Boot Device, 04h = Uniform sectors bottom WP# protect, 05h = Uniform sectors top
WP# protect
Program Suspend
00h = Not Supported, 01h = Supported
Am49LV128BM
first. Refer to the AC Characteristics section for timing
diagrams.
Reading Array Data
The device is automatically set to reading array data
after device power-up. No commands are required to
retrieve data. The device is ready to read array data
after completing an Embedded Program or Embedded
Erase algorithm.
After the device accepts an Erase Suspend command,
the device enters the erase-suspend-read mode, after
which the system can read data from any non-erase-
Description
June 17, 2004