Tri-State ys MUX Danny Mok Altera HK FAE (amok@altera.com) Copyright 1997 Altera Corporation 2/22/2021P1 favara
Copyright © 1997 Altera Corporation 2/22/2021 P.1 Tri-State vs MUX Danny Mok Altera HK FAE (dmok@altera.com)
Tri-State Buffer a There are two application area for the Tri-State Buffer Internal Tri-State Buffer Logic need a Tri-State Buffer within device EXternal Tri-State Buffer Logic need a Tri-State Buffer at the O pin What Altera can provide Altera will implement Internal Tri-State Buffer with MUX All the lO pad can provide a real Tri-State Buffer But some other Pld vendor can provide Internal tri-State Buffer a is that any design limitation if use Altera Device? Copyright 1997 Altera Corporation 2/22/2021P2 favara
Copyright © 1997 Altera Corporation 2/22/2021 P.2 Tri-State Buffer ◼ There are two application area for the Tri-State Buffer – Internal Tri-State Buffer Logic • need a Tri-State Buffer within Device – External Tri-State Buffer Logic • need a Tri-State Buffer at the I/O pin ◼ What Altera can provide – Altera will implement Internal Tri-State Buffer with MUX – All the I/O pad can provide a real Tri-State Buffer ◼ But some other PLD vendor can provide – Internal Tri-State Buffer ◼ Is that any design limitation if use Altera Device ?
External tri-State Buffer in2 UTPUT DFFA out1 clk1 This Tri-State Buffer for 1/0 pad application Copyright 1997 Altera Corporation 2/22/2021P favara
Copyright © 1997 Altera Corporation 2/22/2021 P.3 External Tri-State Buffer This Tri-State Buffer for I/O pad application
What altera provide for ■■■■ All Altera Device will provide real Tri-State Buffer at the 1/O pad ntrols 尸0 grammable verso门 CLRN Slew-Rate Control VCC Copyright 1997 Altera Corporation 2/22/2021P4 favara
Copyright © 1997 Altera Corporation 2/22/2021 P.4 What Altera Provide for .... All Altera Device will provide real Tri-State Buffer at the I/O pad
Compilation Output 口枫 Go To Equations(1) Fan-Out间 t1:TFLC1_B1.⊥C1A Copyright 1997 Altera Corporation 2/22/2021P favara
Copyright © 1997 Altera Corporation 2/22/2021 P.5 Compilation Output