x R M 4 6 L 8 5 2 Z WT T R
Prefix:
x = Not Qualified
Removed when qualified
RM = Real Time Microcontroller
CPU:
4 = ARM Cortex-R4
Flash / RAM Size:
8 = 1.25MB flash, 192kB RAM
Network Interfaces:
5 = Ethernet and USB
Frequency:
Package Type:
PGE = 144 Pin Package
ZWT = 337 BGA Package
Temperature Range:
T = -40...+105 C
o
Shipping Options:
R = Tape and Reel
Series Number
Architecture:
L = Lockstep
2 = 220MHz
RM46L852
www.ti.com
SPNS185 –SEPTEMBER 2012
6 Device and Documentation Support
6.1 Device and Development-Support Tool Nomenclature
To designate the stages in the product development cycle, TI assigns prefixes to the part numbers of
all devices.Each device has one of three prefixes: X, P, or null (no prefix) (for example, xRM46L852).
These prefixes represent evolutionary stages of product development from engineering prototypes
through fully qualified production devices/tools.
Device development evolutionary flow:
x Experimental device that is not necessarily representative of the final device's electrical
specifications and may not use production assembly flow.
P Prototype device that is not necessarily the final silicon die and may not necessarily meet
final electrical specifications.
null Fully-qualified production device.
x and P devices and TMDX development-support tools are shipped against the following disclaimer:
"Developmental product is intended for internal evaluation purposes."
Production devices have been characterized fully, and the quality and reliability of the device have
been demonstrated fully. TI's standard warranty applies.
Predictions show that prototype devices have a greater failure rate than the standard production
devices. Texas Instruments recommends that these devices not be used in any production system
because their expected end-use failure rate still is undefined. Only qualified production devices are to
be used.
The figure below illustrates the numbering and symbol nomenclature for the RM46L852 .
Figure 6-1. RM46L852 Device Numbering Conventions
6.2 Community Resources
The following links connect to TI community resources. Linked contents are provided "AS IS" by the
respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views;
see TI's Terms of Use.
Hercules™ ARM® Cortex™ Safety Microcontroller Section of the TI E2E Support Community. TI's
Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers.
At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve
problems with fellow engineers.
Copyright © 2012, Texas Instruments Incorporated Device and Documentation Support 165
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