M25PE40VMP6P datasheet(7/60 Pages) STMICROELECTRONICS

Part #	M25PE40VMP6P

Description	4 Mbit, low voltage, Page-Erasable Serial Flash memory with byte alterability, 50 MHz SPI bus, standard pinout

PDF	60 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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7 / 60 page

M25PE40

Description

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Figure 3.

VFQFPN and SO connections

There is an exposed central pad on the underside of the VFQFPN package. This is pulled, internally, to

VSS, and must not be allowed to be connected to any other voltage or signal line on the PCB.

See Section 12: Package mechanical for package dimensions, and how to identify pin-1.

Figure 1.

Logic diagram - previous T7X

process

Figure 2.

Logic diagram - new T9HX

process

Table 1.

Signal names

Signal name

Function

Direction

Serial Clock

Input

Serial Data Input

Input

Serial Data Output

Output

Chip Select

Input

TSL or W(1)

In the previous T7X process the pin is a Top Sector Lock input whereas in the new T9HX process, the pin

is a Write Protect input (see Figure 1 and Figure 2).

Top Sector Lock or Write Protect

Input

Reset

Input

VCC

Supply Voltage

VSS

Ground

Reset

AI09704C

VCC

M25PE40

VSS

TSL

Reset

AI13781

VCC

M25PE40

VSS

AI09703d

VSS

Reset

SVCC

TSL or W

M25PE40

M25PE40VMP6P Datasheet(PDF) 7 Page - STMicroelectronics

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