Micron M25P40 Serial Flash Embedded Memory
Functional Description
Table 1: Signal Names
Signal Name
C
DQ0
DQ1
S#
W#
HOLD#
V
CC
V
SS
Function
Serial clock
Serial data input
Serial data output
Chip select
Write protect or enhanced program supply voltage
Hold
Supply voltage
Ground
Direction
Input
Input
Output
Input
Input
Input
–
–
Figure 2: Pin Connections: SO8, MLP8
S#
DQ1
W#
VSS
1
2
3
4
8
7
6
5
VCC
HOLD#
C
DQ0
There is an exposed central pad on the underside of the MLP8 package that is pulled
internally to V
SS
, and must not be connected to any other voltage or signal line on the
PCB. The Package Mechanical section provides information on package dimensions
and how to identify pin 1.
PDF: 09005aef8456654f
m25p40.pdf - Rev. Y 8/12 EN
7
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2011 Micron Technology, Inc. All rights reserved.
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