SCF5249VM140 datasheet(43/56 Pages) FREESCALE

tên linh kiện	SCF5249VM140

Giải thích chi tiết về linh kiện	Integrated ColdFire Microprocessor

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Electrical Characteristics

SCF5249 Integrated ColdFire® Microprocessor Data Sheet, Rev. 3

Freescale Semiconductor

Figure 15. General-Purpose Parallel Port Timing Definition

SCLK to GPIO Valid (output valid)

—

tbd

nSec

SCLK to GPIO Invalid (output hold)

tbd

—

nSec

Table 30. IEEE 1149.1 (JTAG) AC Timing Specifications

Num

Characteristic

Units

Min

Max

TCK Frequency of Operation

MHz

TCK Cycle Time

100

nSec

J2a

TCK Clock Pulse High Width

nSec

J2b

TCK Clock Pulse Low Width

nSec

J3a

TCK Fall Time

(VIH=2.4 V to VIL=0.5 V)

—5

nSec

J3b

TCK Rise Time

(VIL=0.5 v to VIH=2.4 V)

—5

nSec

TDI, TMS to TCK rising (Input Setup)

—

nSec

TCK rising to TDI, TMS Invalid (Hold)

—

nSec

Boundary Scan Data Valid to TCK (Setup)

tbd

—

nSec

TCK to Boundary Scan Data Invalid to rising edge (Hold)

tbd

—

nSec

Table 29. General-Purpose I/O Port AC Timing Specifications

Num

Characteristic

Units

Min

Max

SCLK

GPIO IN

GPIO OUT

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