C8051F50x-F51x
DOCUMENT CHANGE LIST
Revision 0.2 to Revision 1.0
Added documentation for 40-pin QFN devices in all relevant chapters.
Change oscillator specification for devices initially specified to have ±1.0% oscillators. All devices are
now rated for ±0.5% across operating voltage and temperature.
Removed all content from “1. System Overview”after block diagrams.
Updated “5. Electrical Characteristics”—Updated various specifications and filled in all TBD values for
all specifications.
Updated “Table 5.11. Voltage Reference Electrical Characteristics”—Changed Minimum external
reference input voltage from 0 V to 1 V.
Updated “9. Comparators”—Fixed incorrect references to SFR Definitions 7.x.
Updated “Table 13.1”—Added SFRs SN0, SN1, SN2, and SN3 to SFR map.
Updated “SFR Definition 19.2” (OSCICN) - Removed errant row for Bit 6. Also, Bit 3 defintion changed
to a Reserved bit from an Unused bit.
Updated “20. Port Input/Output”—Added Port 4 to the crossbar diagrams and documentation.
Updated “27.4. Watchdog Timer Mode”—Fixed incorrect references from Module 2 as the watchdog
module to Module 5.
Revision 1.0 to Revision 1.1
Updated “Ordering Information” on page 20 and Table 2.1, “Product Selection Guide,” on page 21 to
include -A (Automotive) devices and automotive qualification information.
Updated supply current related specifications throughout “5. Electrical Characteristics”.
Updated SFR Definition 8.1 to change VREF high setting to 2.20 V from 2.25 V.
Updated Table 5.12 on page 51 and Figure 9.1 on page 75 to indicate that Comparators are powered
from VIO and not VDDA
.
Updated Table 5.12 on page 51 to fix Comparator Supply Current Typical values for Modes 2 and 3.
Updated the Gain Table in “6.3.1. Calculating the Gain Value” to fix the ADC0GNH Value in the last row.
Updated Table 11.1 on page 89 with correct timing for all branch instructions, MOVC, and CPL A.
Updated “15.1. Programming The Flash Memory” to clarify behavior of 8-bit MOVX instructions and
when writing/erasing Flash.
Updated SFR Definition 15.3 to include FLEWT bit definition. This bit must be set before writing or
erasing Flash. Also updated Table 5.5 to reflect new Flash Write and Erase timing.
Updated “17.7. Flash Error Reset” with an additional cause of a Flash Error reset.
Updated “20.1.3. Interfacing Port I/O in a Multi-Voltage System” to remove note regarding interfacing to
voltages above VIO.
Updated “23. SMBus”to remove all hardware ACK features, including SMB0ADM and SMB0ADR
SFRs.
Updated “24.3.2. Data Reception” to clarify UART receive FIFO behavior.
Updated SFR Definition 24.1 for SCON0 to correct SFR Page to 0x00 from All Pages.
Note: All items from the C8051F50x-F51x Errata dated July 1, 2009 are incorporated into this data sheet.
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Rev. 1.1
SILICON [ SILICON ]
