LC4256ZC-45T144AS View Datasheet(PDF) - Lattice Semiconductor

Part Name

Description

Manufacturer

LC4256ZC-45T144AS

3.3V/2.5V/1.8V In-System Programmable SuperFAST High Density PLDs

Lattice Semiconductor 

Lattice Semiconductor

ispMACH 4000V/B/C/Z Family Data Sheet

ispMACH 4000V/B/C Internal Timing Parameters

Over Recommended Operating Conditions

Parameter

Description

In/Out Delays

tIN

Input Buffer Delay

tGOE

Global OE Pin Delay

tGCLK_IN Global Clock Input Buffer Delay

tBUF

Delay through Output Buffer

tEN

Output Enable Time

tDIS

Output Disable Time

Routing/GLB Delays

tROUTE

Delay through GRP

tMCELL

Macrocell Delay

tINREG

Input Buffer to Macrocell Register Delay

tFBK

Internal Feedback Delay

tPDb

5-PT Bypass Propagation Delay

tPDi

Macrocell Propagation Delay

Register/Latch Delays

tS

tS_PT

tST

tST_PT

tH

tHT

tSIR

tSIR_PT

tHIR

tHIR_PT

tCOi

tCES

tCEH

tSL

tSL_PT

tHL

tGOi

tPDLi

D-Register Setup Time (Global Clock)

D-Register Setup Time (Product Term Clock)

T-Register Setup Time (Global Clock)

T-Register Setup Time (Product Term Clock)

D-Register Hold Time

T-Register Hold Time

D-Input Register Setup Time (Global Clock)

D-Input Register Setup Time (Product Term Clock)

D-Input Register Hold Time (Global Clock)

D-Input Register Hold Time (Product Term Clock)

Register Clock to Output/Feedback MUX Time

Clock Enable Setup Time

Clock Enable Hold Time

Latch Setup Time (Global Clock)

Latch Setup Time (Product Term Clock)

Latch Hold Time

Latch Gate to Output/Feedback MUX Time

Propagation Delay through Transparent Latch to Output/

Feedback MUX

tSRi

Asynchronous Reset or Set to Output/Feedback MUX

Delay

tSRR

Asynchronous Reset or Set Recovery Time

Control Delays

tBCLK

tPTCLK

tBSR

tPTSR

GLB PT Clock Delay

Macrocell PT Clock Delay

GLB PT Set/Reset Delay

Macrocell PT Set/Reset Delay

-5

-75

-10

Min. Max. Min. Max. Min. Max. Units

— 0.95 — 1.50 — 2.00 ns

— 4.04 — 6.04 — 7.04 ns

— 1.83 — 2.28 — 3.28 ns

— 1.00 — 1.50 — 1.50 ns

— 0.96 — 0.96 — 0.96 ns

— 0.96 — 0.96 — 0.96 ns

— 1.51 — 2.26 — 3.26 ns

— 1.05 — 1.45 — 1.95 ns

— 0.56 — 0.96 — 1.46 ns

— 0.00 — 0.00 — 0.00 ns

— 1.54 — 2.24 — 3.24 ns

— 0.94 — 1.24 — 1.74 ns

1.32 — 1.57 — 1.57 — ns

1.32 — 1.32 — 1.32 — ns

1.52 — 1.77 — 1.77 — ns

1.32 — 1.32 — 1.32 — ns

1.68 — 2.93 — 3.93 — ns

1.68 — 2.93 — 3.93 — ns

1.52 — 1.57 — 1.57 — ns

1.45 — 1.45 — 1.45 — ns

0.68 — 1.18 — 1.18 — ns

0.68 — 1.18 — 1.18 — ns

— 0.52 — 0.67 — 1.17 ns

2.25 — 2.25 — 2.25 — ns

1.88 — 1.88 — 1.88 — ns

1.32 — 1.57 — 1.57 — ns

1.32 — 1.32 — 1.32 — ns

1.17 — 1.17 — 1.17 — ns

— 0.33 — 0.33 — 0.33 ns

— 0.25 — 0.25 — 0.25 ns

0.28 — 0.28 — 0.28 — ns

1.67 — 1.67 — 1.67 — ns

— 1.12 — 1.12 — 0.62 ns

— 0.87 — 0.87 — 0.87 ns

— 1.83 — 1.83 — 1.83 ns

— 2.51 — 3.41 — 3.41 ns

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