RZ/A1L Groups - Renesas Electronics
Contents
1. qi RENESAS TECHNICAL UPDATE TN RZ A A E te June 1 2015 3 2 Resiriction relaxation in revised product Restriction described in 3 1 Restriction for current product is relaxed in revised product As the user s manual describes The 1 2 V power supply Vcc PLLVcc USBAVcc USBDVcc and USBUVcc and 3 3 V power supply PVcc AVcc USBAPVcc and USBDPVcc can be turned on and off in any order When turning on the power be sure to drive both the TRST and RES pins low otherwise the output pins and input output pins output undefined levels resulting in system malfunction When turning off the power drive the TRST and RES pins low if the undefined output may cause a problem Regarding the input output state following timing chart shows input output state under the condition that the TRST and RES pins are driven to low 3 3V is turned on before 1 2V is turned on 1 2V is turned on before 3 3V is turned on 3 3V power supply f i 3 3V power supply V4 I 1 2V power supply 1 2V power supply A HiZ HiZ HiZ HiZ HiZ HiZ I l i i Under the condition that the TRST and RES pins are driven to LOW Under the condition that the TRST and RES pins are driven to LOW End of document RENESAS Page 4 of 4 qi2. RENESAS TECHNICAL UPDATE 1753 Shimonumabe Nakahara ku Kawasaki shi Kanagawa 211 8668 Japan Renesas Electronics Corporation Product Document Category ue No TN RZ A A E E Rev 1 00 Title RZ A1L Groups Notes about specification defferencies Information between new version and old version of RZ A1L Category Technical Notification RZ A1L Group User s Manual Hardware Rev 1 00 RO1UH0437EJ0100 Reference All Document Applicable Poda See following In RZ A1L Group the current product old version which has restriction about power on sequence is in mass production and revised product new version which relaxed this restriction is also in mass production now Because both versions are in mass production please be careful when ordering We will inform differences about specification and orderable part number of both version Since revised product new version comprise whole specification of current product old version we plan to terminate production of old version For new design please use revised product new version 1 Production Termination 1 1 plan to termination Steps Date Notes Change Orderable Part No in the WEB site 2014 10 E from current product to revised product Request of using orderable part number of Now revised product Production termination of current product 2015 12 plan There is a possibility of termination earlier than planned Because current version will be shipped t
3. cification of power on sequence described in the user s manual restriction and countermeasure for current product will not be added to the user s manual Since current product has mismatch with specification described in the user s manual permanently please use revised product for new designs 3 1 Restriction for current product 3 1 1 Condition When 3 3V power PVcc AVcc USBAPVcc and USBDPVcc is turned on before 1 2V power Vcc PLLVcc USBAVcc USBDVcc and USBUVcc is turned on in power on sequence In BGA package USBDVcc USBUVcc and USBDPVcc is not exist 3 1 2 Phenomenon State of input output terminal is possibly mismatch with specification HiZ until 1 2V power on even if the TRST and RES pins are driven to low 3 3V is turned on before 1 2V is turned on 1 2V is turned on before 3 3V is turned on 3 3V power supply f i 3 3V power supply S I I I 1 2V power supply i 1 2V power supply f HiZ specification HiZ Hiz HiZ H Z Not HiZ Even if the TRST and RES pins are driven to LOW Under the condition that the TRST and RES pins are driven to LOW 3 1 3 Potential problem In power on sequence if other LSI is running and expecting signals form RZ A1L the unpredictable input output state potentially not HiZ may cause of malfunction of the other LSI or whole system 3 1 4 Countermeasure In power on sequence turn 1 2V power on before or simultaneously to 3 3V power on RENESAS Page 3 of 4
4. necessary to take countermeasure described in 3 Detail function differences depending on system requirement Nothing is marked between Type Code and Trace Code QFP176 HE Type Code RENESAS R7S721020VC kKL Aa Fk Trace Code BC01234 QFP208 HS Type Code RENESAS K R7S721021VC EA H bL Z3 F Trace Code BC01234 O BGA176 k RENESAS Type Code gt 121020 BC01234 lt gt 1410JUPN kL Anl F Trace Code EIAI F EIA Code Current Product Revised Product Same as Current Product No restriction on power on sequence as described in the user s manual Same as Current Product A is marked between Type Code and Trace Code QFP176 HE Type Code kLY AId F Trace Code QFP208 HE Type Code kL AI k Trace Code BGA176 24 Type Code EIAI F EIA Code 2CENESAS RENESAS R7S721020VC A BC01234 EIAI F EIA Code RENESAS R7S721021VC A BC01234 RENESAS 721020A BC01234 lt kKL Anrl F Trace Code gt 1410JUPN Page 2 of 4 RENESAS TECHNICAL UPDATE TN RZ A A E Date June 1 2015 3 Detail function difference Because current product old version has restriction on power on sequence it may be necessary to take countermeasure depending on system requirement Restriction and countermeasure for current product is shown in 3 1 Restriction for current product Note Because revised product satisfy spe
5. o only few particular customers which launched mass production at early time before revised version mass production order revised version using indicated orderable part number 1 2 Orderable part number list No Current Product to be terminated Revised Product l Orderable Part Number Orderable Part Number R7S721020VLFP AA0 R7S721020VLFP AAT R7S721020VCFP AAO R7S721020VCFP AA R7S721020VCBG ACO R7S721020VCBG AC1 R7S721021VLFP AAO R7S721021VLFP AA1 R7S721021VCFP AAO R7S721021VCFP AA1 c 2015 Renesas Electronics Corporation All rights reserved Page 1 of 4 sCENESAS RENESAS TECHNICAL UPDATE TN RZ A A E 2 Differences between current roduct old version and revised roduct new version ate June 1 2015 The differences between current product old version and revised product new version of RZ AiL is shown below It is possible to distinguish between current product and revised product in the difference of the mark There is no functional difference other than restriction on power on sequence so current product and revised product is software compatible For more information about detail function differences please see 3 Detail function differences el function Outline R7S721020VLFP R78721020VCEP R7S721020VCBG R7S721021VLFP R7S721021VCFP There is one restriction on power on sequence Because there is difference in specification described in the user s manual in this point it may be
Download Pdf Manuals
Related Search