DS31256_V01 datasheet(171/183 Pages) MAXIM

171 / 183 page

DS31256 256-Channel, High-Throughput HDLC Controller

171 of 183

AC CHARACTERISTICS: LOCAL BUS IN CONFIGURATION MODE (LMS = 1)

(VDD = 3.0V to 3.6V, TA = 0°C to +70°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Setup Time for LA[15:0] Valid to

LCS

Active

Setup Time for

LCS Active to Either

LRD, LWR, or LDS Active

Delay Time from Either

LRD or LDS

Active to LD[15:0] Valid

(Note 12)

Hold Time from Either

LRD, LWR, or

LDS Inactive to LCS Inactive

Hold Time from Either

LRD or LDS

Inactive to LD[15:0] Tri-State

Wait Time from Either

LWR or LDS

Active to Latch LD[15:0]

(Note 13)

LD[15:0] Setup Time to Either

LWR or

LDS Inactive

LD[15:0] Hold Time from Either

LWR

LDS Inactive

LA[15:0] Hold from Either

LWR, LRD,

LDS Inactive

LRD, LWD, or LDS Inactive Time

t10

(Note 14)

Note 12: Given value for 33MHz PCLK. Calculated as 1.5 x (PCLK Period) + 30ns

Note 13: Given value for 33MHz PCLK. Calculated as 2 x (PCLK Period) + 15ns

Note 14: Given value for 33MHz PCLK. Calculated as 2 x (PCLK Period) + 5ns

DS31256 Datasheet(PDF) 171 Page - Maxim Integrated Products

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