GS8182D18D Datasheet, PDF (16/27 Pages) GSI Technology – 18Mb Burst of 4 SigmaQuad-II SRAM

Preliminary
GS8182D18D-250/200/167
AC Electrical Characteristics
Parameter
Symbol
-250
Min Max
-200
Min Max
K, K Clock Cycle Time
C, C Clock Cycle Time
t_KHKH
t_CHCH
4.0 6.3
5.0 7.88
K, K Clock High Pulse Width
C, C Clock High Pulse Width
K to K High
C to C High
tKC Variable
t_KHKL
t_CHCL
1.6
—
2.0
—
t_KHKH
1.8
—
2.2
—
t_KCVar
0.2
—
0.2
—
K, K Clock Low Pulse Width
C, C Clock Low Pulse Width
t_KLKH
t_CLCH
1.6
—
2.0
—
K, K Clock High to C, C Clock High
t_KHCH
0
1.8
0
2.3
Address Input Setup Time
t_AVKH
0.5
—
0.6
—
Address Input Hold Time
t_KHAX
0.5
—
0.6
—
Control Input Setup Time
t_BVKH
0.5
—
0.6
—
Control Input Hold Time
t_KHBX
0.5
—
0.6
—
Data Input Setup Time
t_DVKH
0.35
—
0.4
—
Data Input Hold Time
t_KHDX
0.35
—
0.4
—
K, K Clock High to Data Output Valid
C, C Clock High to Data Output Valid
t_KHQV
t_CHQV
— 0.45 — 0.45
K, K Clock High to Data Output Hold
C, C Clock High to Data Output Hold
t_KHQX
t_CHQX
–0.45
—
–0.45
—
K Clock High to Data Output Low-Z
C Clock High to Data Output Low-Z
t_KHQX1
t_CHQX1
–0.45
—
–0.45
—
K Clock High to Data Output High-Z
C Clock High to Data Output High-Z
t_KHQZ
t_CHQZ
— 0.45 — 0.45
K, K Clock High to Echo Clock Valid
C, C Clock High to Echo Clock Valid
t_KHCQV
t_CHCQV
— 0.45
—
0.45
K, K Clock High to Echo Clock Hold
C, C Clock High to Echo Clock Hold
t_KHCQX
t_CHCQX
–0.45
—
–0.45
—
CQ, CQ High Output Valid
t_CQHQV
—
0.30
—
0.35
CQ, CQ High Output Hold
t_CQHQX –0.30 — –0.35 —
Notes:
1. These parameters apply to control inputs R and W.
2. These parameters are guaranteed by design and characterization. Not 100% tested.
3. These parameters are measured at ±50mV from steady state voltage.
4. t_KHKH Max is specified by t_KHKH Min. t_CHCH Max is specified by t_CHCH Min.
-167
Min
Max
6.0
8.4
2.4
—
2.7
—
0.2
—
2.4
—
0
2.8
0.7
—
0.7
—
0.7
—
0.7
—
0.5
—
0.5
—
—
0.5
–0.5
—
–0.5
—
—
0.5
—
0.5
–0.5
—
—
0.40
–0.40
—
Units Notes
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
ns
1
ns
ns
ns
ns
2
ns
2,3
ns
2,3
ns
2
ns
2
ns
2
ns
2
Rev: 1.02 11/2004
16/27
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2003, GSI Technology