LC4256ZC-45FT256ASES 查看數據表（PDF） - Lattice Semiconductor

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LC4256ZC-45FT256ASES

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 4000Z Internal Timing Parameters (Cont.)

Over Recommended Operating Conditions

-45

Parameter

Description

Min. Max.

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

— 0.95

— 3.00

— 1.95

— 1.10

— 2.50

— 2.50

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

— 2.25

— 0.65

— 1.00

— 0.35

— 0.20

— 0.45

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-Resister 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

1.00 —

2.10 —

1.20 —

2.30 —

1.90 —

1.90 —

1.30 —

1.45 —

1.30 —

1.00 —

— 0.75

2.00 —

0.00 —

1.00 —

2.10 —

2.00 —

— 0.33

— 0.25

tSRi

Asynchronous Reset or Set to Output/Feedback MUX Delay — 0.97

tSRR

Asynchronous Reset or Set Recovery Delay

— 1.80

Control Delays

tBCLK

tPTCLK

tBSR

tPTSR

tGPTOE

GLB PT Clock Delay

Macrocell PT Clock Delay

GLB PT Set/Reset Delay

Macrocell PT Set/Reset Delay

Global PT OE Delay

— 1.55

— 1.55

— 1.83

— 1.83

— 4.30

-5

Min. Max.

— 1.25

— 3.50

— 2.05

— 1.00

— 2.50

— 2.50

— 2.05

— 0.65

— 1.00

— 0.05

— 0.70

— 0.65

1.10 —

1.90 —

1.30 —

2.10 —

1.90 —

1.90 —

1.10 —

1.45 —

1.50 —

1.00 —

— 1.15

2.00 —

0.00 —

1.00 —

1.90 —

2.00 —

— 0.33

— 0.25

— 0.97

— 1.80

— 1.55

— 1.55

— 1.83

— 1.83

— 4.20

-75

Min. Max. Units

— 1.80 ns

— 4.30 ns

— 2.15 ns

— 1.30 ns

— 2.70 ns

— 2.70 ns

— 2.50 ns

— 1.00 ns

— 1.00 ns

— 0.05 ns

— 1.90 ns

— 1.00 ns

1.35 — ns

2.45 — ns

1.55 — ns

2.75 — ns

3.15 — ns

3.15 — ns

0.75 — ns

1.45 — ns

1.95 — ns

1.18 — ns

— 1.05 ns

2.00 — ns

0.00 — ns

1.65 — ns

2.15 — ns

1.17 — ns

— 0.33 ns

— 0.25 ns

— 0.28 ns

— 1.67 ns

— 1.25 ns

— 1.25 ns

— 1.83 ns

— 2.72 ns

— 3.50 ns

33

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