GS8170DW36/72AC-350/333/300/250

Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

Rev: 1.04 4/2005

28/32

© 2003, GSI Technology

JTAG Port Timing Diagram

JTAG Port AC Electrical Characteristics

Parameter

Symbol

Min

Max

Unit

TCK Cycle Time

tTKC

50

—

ns

TCK Low to TDO Valid

tTKQ

—

20

ns

TCK High Pulse Width

tTKH

20

—

ns

TCK Low Pulse Width

tTKL

20

—

ns

TDI & TMS Set Up Time

tTS

10

—

ns

TDI & TMS Hold Time

tTH

10

—

ns

tTH

tTS

tTKQ

tTH

tTS

tTH

tTS

tTKL

tTKL

tTKH

tTKH

tTKC

tTKC

TCK

TDI

TMS

TDO

Parallel SRAM input