MX25L1635D
GENERAL DESCRIPTION
The MX25L1635D are 16,777,216 bit serial Flash memory, which is configured as 2,097,152 x 8 internally. When it is in
two or four I/O read mode, the structure becomes 8,388,608 bits x 2 or 4,194,304 bits x 4. The MX25L1635D feature a
serialperipheralinterfaceandsoftwareprotocolallowingoperationonasimple3-wirebus.Thethreebussignalsareaclock
input (SCLK), a serial data input (SI), and a serial data output (SO). Serial access to the device is enabled by CS# input.
When it is in two I/O read mode, the SI pin and SO pin become SIO0 pin and SIO1 pin for address/dummy bits input and
data output. When it is in four I/O read mode, the SI pin, SO pin, WP# pin and NC pin become SIO0 pin, SIO1 pin, SIO2
pin and SIO3 pin for address/dummy bits input and data output.
TheMX25L1635Dprovidessequentialreadoperationonwholechip.
After program/erase command is issued, auto program/ erase algorithms which program/ erase and verify the specified
pageorsector/blocklocationswillbeexecuted. Programcommandisexecutedonbytebasis, orpage(256bytes)basis,
orwordbasisforContinuouslyprogrammode,anderasecommandisexecutesonsector(4K-byte),orblock(64K-byte),
or whole chip basis.
To provide user with ease of interface, a status register is included to indicate the status of the chip. The status read
command can be issued to detect completion status of a program or erase operation via WIP bit.
Advancedsecurityfeaturesenhancetheprotectionandsecurityfunctions, pleaseseesecurityfeaturessectionformore
details.
When the device is not in operation and CS# is high, it is put in standby mode and draws less than 20uA(typical:1uA) DC
current.
The MX25L1635D utilizes MXIC's proprietary memory cell, which reliably stores memory contents even after 100,000
program and erase cycles.
Table 1. Additional Feature Comparison
Read
Performance
Additional
Protection and Security
Flexible
Identifier
REMS2
Featu-
res
4 I/O
Read
RES
REMS
REMS4
RDID
2 I/O
Read
Block
512-bit
(command : (command : (command : (command : (command:
protection
(BP0-BP3)
secured OTP
(75MHz)
AB hex)
90 hex)
EF hex)
DF hex)
9F hex)
Part Name
(75MHz)
C2 24 (hex) C2 24 (hex) C2 24 (hex)
MX25L1635D
V
V
V
V
V
V
V
24 (hex)
C2 24 15 (hex)
(if ADD=0) (if ADD=0)
(if ADD=0)
X
C2 14 (hex) C2 14 (hex)
(if ADD=0) (if ADD=0)
MX25L1605D
14 (hex)
C2 20 15 (hex)
P/N:PM1374
REV. 1.5, OCT. 01, 2008
7
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