GS8170DD36C Datasheet, PDF (17/29 Pages) GSI Technology – 18Mb Σ1x2Lp CMOS I/O Double Data Rate SigmaRAM

GS8170DD36C-333/300/250/200
AC Electrical Characteristics
Parameter
Symbol
-333
Min Max
-300
Min Max
-250
Min Max
-200
Unit Notes
Min Max
Clock Cycle Time
tKHKH
3.0 — 3.3 — 4.0 — 5.0 — ns
—
Clock High Time
tKHKL
1.2 — 1.3 — 1.6 — 1.8 — ns
—
Clock Low Time
tKLKH
1.2 — 1.3 — 1.6 — 1.8 — ns
—
Clock High to Echo Clock Low-Z
tKHCX1
0.5 — 0.5 — 0.5 — 0.5 — ns
2
Clock High to Echo Clock High
tKHCH
— 1.8
1.8 — 2.1 — 2.1 ns —
Clock Low to Echo Clock Low
tKLCL
— 1.8
1.8 — 2.1 — 2.1 ns
Clock High to Echo Clock High-Z
tKHCZ
— 1.8
1.8 — 2.1 — 2.1 ns 1, 2
Clock High to Output Low-Z
tKHQX1
0.5 — 0.5 — 0.5 — 0.5 — ns
1
Clock High to Output Valid
tKHQV
— 1.8
1.8 — 2.1 — 2.1 ns —
Clock Low to Output Invalid
tKLQX 0.5 — 0.5 — 0.5 — 0.5 — ns —
Clock Low to Output Valid
tKLQV
— 1.8 — 1.8 — 2.1 — 2.1 ns
—
Clock High to Output Invalid
tKHQX
0.5 — 0.5 — 0.5 — 0.5 — ns
—
Clock High to Output High-Z
tKHQZ
— 1.8
1.8 — 2.1 — 2.1 ns
1
Echo Clock High to Output Valid
tCHQV
— 0.27 — 0.29 — 0.35 — 0.35 ns
2
Echo Clock Low to Output Invalid
tCLQX –0.27 — –0.29 — –0.35 — –0.35 — ns
2
Echo Clock Low to Output Valid
tCLQV
— 0.27 — 0.29 — 0.35 — 0.35 ns
2
Echo Clock High to Output Invalid
tCHQX -0.27 — -0.29 — -0.35 — -0.35 — ns
2
Address Valid to Clock High
tAVKH
0.6 — 0.7 — 0.8 — 0.8 — ns
—
Clock High to Address Don’t Care
tKHAX
0.4 — 0.4 — 0.5 — 0.5 — ns
—
Enable Valid to Clock High
tEVKH
0.6 — 0.7 — 0.8 — 0.8 — ns
—
Clock High to Enable Don’t Care
tKHEX
0.4 — 0.4 — 0.5 — 0.5 — ns
—
Write Valid to Clock High
tWVKH
0.6 — 0.7 — 0.8 — 0.8 — ns
—
Clock High to Write Don’t Care
tKHWX
0.4 — 0.4 — 0.5 — 0.5 — ns
—
Data In Valid to Clock High
tDVKH 0.32 — 0.35 — 0.40 — 0.40 — ns —
Notes:
1. Measured at 100 mV from steady state. Not 100% tested.
2. Guaranteed by design. Not 100% tested.
3. For any specific temperature and voltage tKHCZ < tKHCX1.
Rev: 2.03 1/2005
17/29
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology, Inc.