Datasheet

DS80C390 Dual CAN High-Speed Microprocessor
53 of 53
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product.
No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2005 Maxim Integrated Products \
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corp.
REVISION HISTORY
REVISION DESCRIPTION
062299 Initial preliminary release.
090799
Clarifies that unused/unimplemented bits in the CAN MOVX SRAM read 0.
Corrected the t
MCS
time period table.
Corrected multiplexed 2-cycle date memory CEO-3 read figure to show RD and WR inactive.
110199
Corrected P5.2 and P5.3 pin descriptions.
Corrected description of sequence to activate the crystal frequency multiplier.
Corrected references to PQFP to read LQFP.
Added RSTOL timing information.
032904
Official release (removed “preliminary” status).
Abs max soldering temp now references JEDEC standard.
AC and DC specifications updated to reflect final characterization data.
Clarified DC characteristics Note 6 concerning port 4 and 5.
Removed Figure 1. Typical I
CC
vs. Frequency.
Added t
LLAX3
specification (identical to t
LLAX2
).
Clarified that t
RLAZ
is held weak latch until overdriven by external memory.
Removed t
PXIZ
, t
PHAV
, t
PHWL
, and t
PHRL
from nonmultiplexed address/data bus table.
Corrected PSEN trace in Figure 10 to not show assertion during MOVX write.
Corrected Table 3 to show unnecessary steps during 16/16 divide.
Supplied approximate oscillator-fail detection frequency.
Removed text references to Stop mode current.
Corrected location of PT2 in Table 14.
022305
In Absolute Maximum Ratings section (page 2):
Removed “A” from IPC/JEDEC J-STD-020A specification to support lead-free devices.
In DC Electrical Characteristics table (page 2):
Changed V
PFW
MIN to 4.10V from 4.20V
Changed V
PFW
MAX to 4.60V from 4.55V
Changed V
RST
MIN to 3.85V from 3.95V
Changed V
RST
MAX to 4.35V from 4.3V
Changed V
IH2
MIN reference to 0.7 x V
CC
from 0.7 x V
DD
Added Note 10
In AC Electrical Characteristics table (page 3):
Added note to (now) Note 11 that AC timing is characterized and guaranteed by design but
is not production tested.
060805
Added lead-free part numbers to Ordering Information table.
110905
Added new paragraph to page 33 stating “Software must ensure that the input value for the
normalize operation is not zero or the function will not complete. Compilers such as the one from
Keil Software have updated their libraries and compensate for this condition.”
Table 3: clarified text under “Normalize” function. Changed “Configure MCNTO register as
required.” to “Load MCNT0 with 00h.”