EP2C8 datasheet(113/168 Pages) ALTERA

113 / 168 page

Altera Corporation

5–23

February 2008

Cyclone II Device Handbook, Volume 1

DC Characteristics and Timing Specifications

Cyclone II Clock Timing Parameters

Refer to Tables 5–20 through 5–34 for Cyclone II clock timing parameters.

EP2C5/A Clock Timing Parameters

Tables 5–21 and 5–22 show the clock timing parameters for EP2C5/A

devices.

TM4KCLR

191

—

244

—

244

—

217

—

244

—

Notes to Table 5–19:

(1)

For the –6 speed grades, the minimum timing is for the commercial temperature grade. The –7 speed grade devices

offer the automotive temperature grade. The –8 speed grade devices offer the industrial temperature grade.

(2)

For each parameter of the –7 speed grade columns, the value in the first row represents the minimum timing

parameter for automotive devices. The second row represents the minimum timing parameter for commercial

devices.

(3)

For each parameter of the –8 speed grade columns, the value in the first row represents the minimum timing

parameter for industrial devices. The second row represents the minimum timing parameter for commercial

devices.

Table 5–19. M4K Block Internal Timing Microparameters (Part 3 of 3)

Parameter

–6 Speed Grade (1)

–7 Speed Grade (2)

–8 Speed Grade (3)

Unit

Min

Max

Min

Max

Min

Max

Table 5–20. Cyclone II Clock Timing Parameters

Symbol

Parameter

tCIN

Delay from clock pad to I/O input register

tCOUT

Delay from clock pad to I/O output register

tPLLCIN

Delay from PLL

inclk pad to I/O input register

tPLLCOUT

Delay from PLL

inclk pad to I/O output register

Table 5–21. EP2C5/A Column Pins Global Clock Timing Parameters (Part 1 of 2)

Parameter

Fast Corner

–6 Speed

Grade

–7 Speed

Grade

(1)

–7 Speed

Grade

(2)

–8 Speed

Grade

Unit

Industrial/

Automotive

Commercial

tCIN

1.283

1.343

2.329

2.484

2.688

tCOUT

1.297

1.358

2.363

2.516

2.717

tPL LCIN

–0.188

–0.201

0.076

0.038

0.042

0.052

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