256Mb, 3V Multiple I/O Serial Flash Memory
Device Description
Device Description
The MT25Q is a high-performance multiple input/output serial Flash memory device. It
features a high-speed SPI-compatible bus interface, execute-in-place (XIP) functionali-
ty, advanced write protection mechanisms, and extended address access. Innovative,
high-performance, dual and quad input/output commands enable double or quadru-
ple the transfer bandwidth for READ and PROGRAM operations.
Figure 2: Block Diagram
RESET#
HOLD#
High voltage
Control logic
generator
W#
S#
C
64 OTP bytes
DQ0
DQ1
DQ2
DQ3
I/O shift register
Address register
and counter
256 byte
data buffer
Status
register
Memory
256 bytes (page size)
X decoder
1. Each page of memory can be individually programmed, but the device is not page-eras-
able.
Note:
CCMTD-1725822587-3368
mt25q-qljs-L256-ABA-xxT.pdf - Rev. K 07/18 EN
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