MX25U8035 Macronix International, MX25U8035 Datasheet - Page 25

• Manufacturer Part Number: MX25U8035
• Description: (MX25U4035 / MX25U8035) 4M-BIT [x 1/x 2/x 4] 1.8V CMOS SERIAL FLASH
• Manufacturer: Macronix International

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P/N: PM1394
Table 7. ID Definitions
For new design, please use RDID instruction.
The sequence is shown as Figure 28,29. Even in Deep power-down mode, the RDP and RES are also allowed to
be executed, only except the device is in progress of program/erase/write cycle; there's no effect on the current
program/erase/write cycle in progress.
The RES instruction is ended by CS# goes high after the ID been read out at least once. The ID outputs repeat-
edly if continuously send the additional clock cycles on SCLK while CS# is at low. If the device was not previously
in Deep Power-down mode, the device transition to standby mode is immediate. If the device was previously in
Deep Power-down mode, there's a delay of tRES2 to transit to standby mode, and CS# must remain to high at least
tRES2(max). Once in the standby mode, the device waits to be selected, so it can be receive, decode, and execute
instruction.
(19) Read Electronic Manufacturer ID & Device ID (REMS), (REMS2), (REMS4)
The REMS, REMS2 & REMS4 instruction is an alternative to the Release from Power-down/Device ID instruction
that provides both the JEDEC assigned manufacturer ID and the specific device ID. The REMS4 instruction is rec-
ommended to use for 4 I/O identification and REMS2 instruction is recommended to use for 2 I/O identification.
The REMS, REMS2 & REMS4 instruction is very similar to the Release from Power-down/Device ID instruction. The
instruction is initiated by driving the CS# pin low and shift the instruction code "90h" or "EFh" or "DFh"followed by
two dummy bytes and one bytes address (A7~A0). After which, the Manufacturer ID for MXIC (C2h) and the Device
ID are shifted out on the falling edge of SCLK with most significant bit (MSB) first as shown in figure 30. The Device
ID values are listed in Table 7 of ID Definitions. If the one-byte address is initially set to 01h, then the device ID will
be read first and then followed by the Manufacturer ID. The Manufacturer and Device IDs can be read continuously,
alternating from one to the other. The instruction is completed by driving CS# high.
RDID (JEDEC ID)
Command Type
REMS/REMS2/
REMS4
RES
manufacturer ID
manufactuer ID
C2
C2
MX25U4035
electronic ID
memory type
device ID
33
25
33
25
memory
density
33
manufacturer ID
manufacturer ID device ID
C2
C2
MX25U4035
MX25U8035
MX25U8035
electronic ID
memory
34
type
25
34
REV. 1.0, MAR. 09, 2009
memory
density
34
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