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 (Cont.)

Over Recommended Operating Conditions

Parameter

Description

-2.5

-2.7

-3

-3.5

Units

tPDLi

Propagation Delay through

Transparent Latch to Output/

Feedback MUX

— 0.25 — 0.25 — 0.25 — 0.25 ns

tSRi

Asynchronous Reset or Set to

Output/Feedback MUX Delay

0.28 — 0.28 — 0.28 — 0.28 —

ns

tSRR

Asynchronous Reset or Set

Recovery Time

1.67 — 1.67 — 1.67 — 1.67 —

ns

Control Delays

tBCLK

tPTCLK

tBSR

tPTSR

tGPTOE

tPTOE

GLB PT Clock Delay

Macrocell PT Clock Delay

Block PT Set/Reset Delay

Macrocell PT Set/Reset Delay

Global PT OE Delay

Macrocell PT OE Delay

— 1.12 — 1.12 — 1.12 — 1.12 ns

— 0.87 — 0.87 — 0.87 — 0.87 ns

— 1.83 — 1.83 — 1.83 — 1.83 ns

— 1.11 — 1.41 — 1.51 — 1.61 ns

— 2.83 — 4.13 — 5.33 — 5.33 ns

— 1.83 — 2.13 — 2.33 — 2.83 ns

Timing v.3.2

Note: Internal Timing Parameters are not tested and are for reference only. Refer to Timing Model in this data sheet for further details.

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