RM46L852_15 Datasheet, PDF (174/188 Pages) Texas Instruments – 16- and 32-Bit RISC Flash Microcontroller

RM46L852
SPNS185C – SEPTEMBER 2012 – REVISED JUNE 2015
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8 Device and Documentation Support
8.1 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 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.
Figure 8-1 shows the numbering and symbol nomenclature for the RM46L852 device.
x RM 4 6 L 8 5 2 C ZWT T R
Prefix:
x = Not Qualified
Removed when qualified
RM = Real Time Microcontroller
CPU:
4 = ARM Cortex-R4
Series Number
Architecture:
L = Lockstep
Shipping Options:
R = Tape and Reel
Temperature Range:
T = –40^oC to 105^oC
Package Type:
ZWT = 337-Pin Plastic BGA with pb-free solder ball
PGE = 144-Pin Plastic Quad Flatpack
Die Revision:
Blank = Die Revision B
C = Die Revision C
Flash / RAM Size:
8 = 1.25MB flash, 192KB RAM
Frequency:
2 = 220 MHz
Network Interfaces:
5 = Ethernet and USB
Figure 8-1. RM46L852 Device Numbering Conventions
174 Device and Documentation Support
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