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SPNA135A Datasheet(PDF) 7 Page - Texas Instruments |
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SPNA135A Datasheet(HTML) 7 Page - Texas Instruments |
7 / 15 page www.ti.com Package Differences 4 Package Differences Both the TMS570LS20x/10x and the TMS570LS31x/21x series of microcontrollers are offered in two packages: • 144-pin quad flat pack (QFP) • 337-ball grid array (BGA) The following sections describe the differences in terms of the pin-out and ball-out for these two packages. 4.1 144 QFP Differences The LS20x/10x and LS31x/21x microcontrollers are completely different in terms of the 144 QFP pin-out. An application that uses the LS20x/10x microcontroller in the 144 QFP package cannot use the LS31x/21x microcontrollers without redesigning the circuit board. 4.2 337 BGA Differences The LS20x/10x and LS31x/21x microcontrollers are very compatible in terms of the 337 BGA ball-outs with some significant exceptions. These exceptions are summarized in Table 2 and described in the sections following the table. Table 2. LS31x/21x and LS20x/10x Ball-Map Differences 337 BGA Ball# for 337 BGA Ball# for Signal Name LS20x/10x LS31x/21x External Memory Interface (EMIF) Differences EMIF_BA[0] D13 E13 EMIF_nOE D12 E12 EMIF_nDQM[1] D11 E11 EMIF_nDQM[0] D10 E10 EMIF_ADDR[5] D9 E9 EMIF_ADDR[4] D8 E8 EMIF_ADDR[3] D7 E7 EMIF_ADDR[2] D6 E6 EMIF_DATA[4] E4 E5 EMIF_DATA[5] F4 F5 EMIF_DATA[6] G4 G5 EMIF_DATA[7] K4 K5 EMIF_CLK – K3 EMIF_DATA[8] L4 L5 EMIF_CKE – L3 EMIF_DATA[9] M4 M5 EMIF_DATA[10] N4 N5 EMIF_DATA[11] P4 P5 EMIF_nWAIT – P3 EMIF_nRAS – R3 EMIF_nCAS – R4 EMIF_DATA[12] T5 R5 EMIF_DATA[13] T6 R6 EMIF_DATA[14] T7 R7 EMIF_DATA[15] T8 R8 EMIF_DATA[3] N16 N15 EMIF_DATA[2] M16 M15 EMIF_DATA[1] L16 L15 EMIF_DATA[0] K16 K15 7 SPNA135A – October 2011 Compatibility Considerations: TMS570LS20x/10x to TMS570LS31x/21x Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated |
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