IS61QDB22M18 Datasheet, PDF (21/27 Pages) Integrated Silicon Solution, Inc – 36 Mb (1M x 36 & 2M x 18) QUAD (Burst of 2) Synchronous SRAMs

36 Mb (1M x 36 & 2M x 18)
QUAD (Burst of 2) Synchronous SRAMs
ISSI ^®
JTAG AC Characteristics (T_A = 0 to +70° C, V_DD = 1.8V -5%, +5%)
Parameter
Symbol
Minimum
TCK cycle time
TCK high pulse width
TCk low pulse width
TMS setup
TMS hold
TDI setup
TDI hold
TCK low to valid data
t_THTH
20
t_THTL
7
t_TLTH
7
t_MVTH
4
t_THMX
4
t_DVTH
4
t_THDX
4
t_TLOV
—
1. See AC Test Loading on page 15.
Maximum
—
—
—
—
—
—
—
7
JTAG Timing Diagram
Units
ns
ns
ns
ns
ns
ns
ns
ns
Notes
1
t_THTL
t_TLTH
t_THTH
TCK
t_THMX
TMS
t_THDX
t_MVTH
TDI
t_DVTH
TDO
t_TLOV
Integrated Silicon Solution, Inc. — 1-800-379-4774
21
Rev. B
06/29/06