AM29LV641DL120REI Spansion Inc., AM29LV641DL120REI Datasheet - Page 25

• Manufacturer Part Number: AM29LV641DL120REI
• Description: Flash Memory IC
• Manufacturer: Spansion Inc.

Specifications of AM29LV641DL120REI

• Memory Size: 64Mbit
• Memory Configuration: 4M X 16
• Ic Interface Type: Parallel
• Access Time: 120ns
• Memory Case Style: TSOP
• No. Of Pins: 48
• Operating Temperature Range: -40°C To +85°C
• Termination Type: SMD

COMMAND DEFINITIONS
Writing specific address and data commands or se-
quences into the command register initiates device op-
erations. Table 10 defines the valid register command
sequences. Writing incorrect address and data val-
ues or writing them in the improper sequence resets
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
first. Refer to the AC Characteristics section for timing
diagrams.
24
Addresses (x16)
4Ah
4Bh
4Ch
4Dh
4Eh
40h
41h
42h
43h
44h
45h
46h
47h
48h
49h
4Fh
00C5h
00B5h
000Xh
0050h
0052h
0049h
0031h
0033h
0000h
0002h
0004h
0001h
0004h
0000h
0000h
0000h
Data
Table 9. Primary Vendor-Specific Extended Query
Query-unique ASCII string “PRI”
Major version number, ASCII
Minor version number, ASCII
Address Sensitive Unlock (Bits 1-0)
00b = Required, 01b = Not Required
Silicon Revision Number (Bits 7-2) 000000b = 0.23 µm Process Technology
Erase Suspend
00 = Not Supported, 01 = To Read Only, 02 = To Read & Write
Sector Protect
00 = Not Supported, X = Number of sectors in per group
Sector Temporary Unprotect
00 = Not Supported, 01 = Supported
Sector Protect/Unprotect scheme
04 = 29LV800A mode
Simultaneous Operation
00 = Not Supported, XX = 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
Bits 7–4 = Hex Value in Volts, Bits 0–3 = BCD Value in 100 mV
ACC (Acceleration) Supply Maximum
Bits 7–4 = Hex Value in Volts, Bits 0–3 = BCD Value in 100 mV
Top/Bottom Boot Sector Flag
00h = Uniform Sector, No WP# Control
04h = Uniform Sector, WP# Protects Bottom Sector
05h = Uniform Sector, WP# Protects Top Sector
Am29LV640D/Am29LV641D
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
w h i c h t h e s y s t e m c a n r e a d d a t a f r o m a n y
non-erase-suspended sector. After completing a pro-
gramming operation in the Erase Suspend mode, the
system may once again read array data with the same
exception. See the Erase Suspend/Erase Resume
Commands section for more information.
Description
September 20, 2002