1106221 F52x-F53x EOL and LTB std

Process Change Notice #1106221
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PCN Date: 22Jun11
Effective Date: 28Dec11
Title: C8051F52x/F53x End of Life and Last Time Buy
Originator: Ike Saeed
Phone: 502-464-9203
Dept: EMS Marketing
Customer Contact: Kathy Haggar
Phone: 512-532-5261
Dept: Sales
PCN Type:
Assembly
Discontinuance
Package
Datasheet
Fabrication
Product Revision
Packing
Labeling
Location
Test
Other
Last Order Date: 28Dec11
PCN Details
Description of Change:
Silicon Laboratories is announcing the discontinuance of following products. These products are
End of Life and subject to Last Time Buy restrictions.
C8051F520-IM
C8051F534-IM
C8051F521-IM
C8051F537-IT
C8051F527-IM
C8051F530-IM
C8051F530-IT
C8051F531-IM
Last-time buy orders for the above part numbers must be placed by 28Dec2011. Shipment of
orders from Silicon Labs will be completed by 22Jun2012. All orders are non-cancellable and
non-returnable.
Reason for Change:
Replaced with subsequent revisions.
Impact on Form, Fit, Function, Quality, Reliability:
No change to Form, Fit, Quality or Reliability. Silicon Laboratories recommends
C8051F52xA/C8051F53xA as replacement parts. The C8051F52xA/F53xA devices are fully code
compatible but have minor differences in behavior and pin-out. The location of the pins used by
the serial UART interface is different between C8051F52x/F53x and C8051F52xA/F53xA
devices. The behavioral differences between discontinued C8051F52x/F53x devices and
replacement C8051F52xA/F53xA devices are described in Appendix A and are also included in
section 20 of C8051F52x/F52xA/F53x/F53xA datasheet available from www.silabs.com.
W7206F1 Process Change Notice Form rev AA
The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in
part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 1
Process Change Notice #1106221
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Product Identification:
Discontinued Products
Recommended Replacement
C8051F520-IM
C8051F520A-IM
C8051F521-IM
C8051F521A-IM
C8051F527-IM
C8051F527A-IM
C8051F530-IM
C8051F530A-IM
C8051F530-IT
C8051F530A-IT
C8051F531-IM
C8051F531A-IM
C8051F534-IM
C8051F534A-IM
C8051F537-IT
C8051F537A-IT
Last Date of Unchanged Product:
Last-time buy orders for the C8051F52x/F53x must be placed by 28Dec2011. Shipment of
orders from Silicon Labs will be completed by 22Jun2012. All orders are non-cancellable and
non-returnable.
Qualification Samples:
All replacement products are at full production status. Samples are available upon request.
Please contact your local Silicon Laboratories sales representative to order samples. A list of
Silicon Laboratories sales representatives may be found at www.silabs.com
Customer Early Acceptance Sign Off:
Customers may approve early PCN acceptance by completing the information below:
Early Acceptance Date:
Name:
Company:
Email your early Acceptance approval to: [email protected]
Qualification Data: N/A
W7206F1 Process Change Notice Form rev AA
The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in
part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 2
Process Change Notice #1106221
____________________________________________________________________________________________________
APPENDIX A – C8051F52x/F53x and C8051F52xA/F53xA Behavioral Differences
Reset Pin Behavior: The reset behavior of C8051F52x/F53x differs from C8051F52xA/F53xA
devices. The differences affect the state of the RST pin during a VDD Monitor reset.
On C8051F52x/F53x devices, a VDD Monitor reset does not affect the state of the RST pin. On
C8051F52xA/F53xA devices, a VDD Monitor reset will pull the RST pin low for the duration of the
brownout condition.
Reset Time Delay: The reset time delay on C8051F52x/F53x devices differs from
C8051F52xA/F53xA devices. On C8051F52x/F53x devices, the reset time delay will be as long as
80 ms following a power-on reset, meaning it can take up to 80 ms to begin code execution.
Subsequent resets will not cause the long delay. On C8051F52xA/F53xA devices, the startup time is
around 350 μs.
UART Pins: The location of the pins used by the serial UART interface is different between
C8051F52x/F53x and C8051F52xA/F53xA devices. On C8051F52x/F53x devices, the TX and RX pins
used by the UART interface are mapped to the P0.3 (TX) and P0.4 (RX) pins. On
C8051F52xA/F53xA, the TX and RX pins used by the UART interface are mapped to the P0.4 (TX)
and P0.5 (RX) pins.
Important Note: On C8051F52xA/53xA devices, the UART pins must be skipped if the UART is
enabled in order for peripherals to appear on port pins beyond the UART on the crossbar. For
example, with the SPI and UART enabled on the crossbar with the SPI on P1.0-P1.3, the UART pins
must be skipped using P0SKIP for the SPI pins to appear correctly.
LIN: The LIN peripheral behavior in C8051F52x/F53x devices is different than the behavior of
C8051F52xA/F53xA devices. The differences are:
Stop Bit Check: On C8051F52x/F53x devices, the stop bits of the fields in the LIN frame are
not checked and no error is generated if the stop bits could not be sent or received
correctly. On C8051F52xA/F53xA devices, the stop bits are checked, and an error will be
generated if the stop bit was not sent or received correctly.
Synch Break and Synch Field Length Check: On C8051F52x/F53x devices, the check of sync
field length versus sync break length is incorrect. On C8051F52xA/F53xA devices, the sync
break length must be larger than 10 bit times (of the measured bit time) to enable the
synchronization.
W7206F1 Process Change Notice Form rev AA
The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in
part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 3
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