M45PE20-VMN6P NUMONYX, M45PE20-VMN6P Datasheet - Page 6

• Manufacturer Part Number: M45PE20-VMN6P
• Description: IC FLASH 2MBIT 75MHZ 8SOIC
• Manufacturer: NUMONYX
• Series: Forté™r

Specifications of M45PE20-VMN6P

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8)
• Speed: 75MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Clock Frequency: 75MHz
• Supply Voltage Range: 2.7V To 3.6V
• Memory Case Style: SO
• No. Of Pins: 8
• Base Number: 45
• Frequency: 75MHz
• Ic Generic Number: 45PE20
• Memory Configuration: 256K X 8
• Interface Type: Serial, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Description
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Description
The M45PE20 is a 2-Mbit (256 Kbits ×8) serial paged flash memory accessed by a high
speed SPI-compatible bus.
The memory can be written or programmed 1 to 256 bytes at a time, using the page write or
page program instruction. The page write instruction consists of an integrated page erase
cycle followed by a page program cycle.
The memory is organized as 4 sectors, each containing 256 pages. Each page is 256 bytes
wide. Thus, the whole memory can be viewed as consisting of 1024 pages, or 262,144
bytes.
The memory can be erased a page at a time, using the page erase instruction, or a sector at
a time, using the sector erase instruction.
Important note
This datasheet details the functionality of the M45PE20 devices, based on the previous T7X
process or based on the current T9HX process (available since August 2007). Delivery of
parts operating with a maximum clock rate of 75 MHz starts from week 8 of 2008.
Figure 1.
Figure 2.
1. There is an exposed central pad on the underside of the VFQFPN package. This is pulled, internally, to
2. See
V
SS
, and must not be allowed to be connected to any other voltage or signal line on the PCB.
Package mechanical
Logic diagram
SO and VFQFPN connections
section for package dimensions, and how to identify pin-1.
Reset
W
D
C
S
Reset
D
C
S
V CC
V SS
M45PE20
M45PE20
1
2
3
4
AI07401
8
7
6
5
Q
V SS
V CC
W
Q
AI07400
M45PE20