FM23MLD16 Datasheet, PDF (1/13 Pages) Ramtron International Corporation – 8Mbit F-RAM Memory

Preliminary
FM23MLD16
8Mbit F-RAM Memory
Features
8Mbit Ferroelectric Nonvolatile RAM
• Organized as 512Kx16
• Configurable as 1Mx8 Using /UB, /LB
• High Endurance 100 Trillion (10¹⁴) Read/Writes
• NoDelay™ Writes
• Page Mode Operation to 33MHz
• Advanced High-Reliability Ferroelectric Process
SRAM Compatible
• JEDEC 512Kx16 SRAM Pinout
• 60 ns Access Time, 115 ns Cycle Time
Advanced Features
• Low V_DD Monitor Protects Memory against
Inadvertent Writes
Description
The FM23MLD16 is a 512Kx16 nonvolatile memory
that reads and writes like a standard SRAM. A
ferroelectric random access memory or F-RAM is
nonvolatile, which means that data is retained after
power is removed. It provides data retention for over
10 years while eliminating the reliability concerns,
functional disadvantages, and system design
complexities of battery-backed SRAM (BBSRAM).
Fast write timing and very high write endurance
make F-RAM superior to other types of memory.
In-system operation of the FM23MLD16 is very
similar to other RAM devices and can be used as a
drop-in replacement for standard SRAM. Read and
write cycles may be triggered by a chip enable or
simply by changing the address. The F-RAM
memory is nonvolatile due to its unique ferroelectric
memory process. These features make the
FM23MLD16 ideal for nonvolatile memory
applications requiring frequent or rapid writes in the
form of an SRAM.
The FM23MLD16 includes a low voltage monitor
that blocks access to the memory array when V_DD
drops below a critical threshold. The memory is
protected against an inadvertent access and data
corruption under this condition.
The FM23MLD16 F-RAM is available in a 48-ball
FBGA surface mount package. Device specifications
This is a product that has fixed target specifications but are subject
to change pending characterization results.
Rev. 1.0
Dec. 2008
Superior to Battery-backed SRAM Modules
• No Battery Concerns
• Monolithic Reliability
• True Surface Mount Solution, No Rework Steps
• Superior for Moisture, Shock, and Vibration
Low Power Operation
• 2.7V – 3.6V Power Supply
• 14 mA Active Current
Industry Standard Configuration
• Industrial Temperature -40° C to +85° C
• 48-pin “Green”/RoHS FBGA package
are guaranteed over the industrial temperature range
of –40°C to +85°C.
48-Ball FBGA Top View (Ball Down)
1
2
3
4
5
6
A
/LB
/OE
A0
A1
A2 CE2
B
DQ8 /UB
A3
A4 /CE1 DQ0
C
DQ9 DQ10 A5
A6 DQ1 DQ2
D
VSS DQ11 A17
A7
DQ3 VDD
E
VDD DQ12 NC A16 DQ4 VSS
F
DQ14 DQ13 A14 A15 DQ5 DQ6
G
DQ15 NC A12 A13 /WE DQ7
H
A18
A8
A9
A10 A11
NC
Ordering Information
FM23MLD16-60-BG 60 ns access, 48-pin
“Green”/RoHS FBGA
Ramtron International Corporation
1850 Ramtron Drive, Colorado Springs, CO 80921
(800) 545-FRAM, [phone]
http://www.ramtron.com
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