GS8662Q18GE-250 GSI TECHNOLOGY, GS8662Q18GE-250 Datasheet - Page 18

• Manufacturer Part Number: GS8662Q18GE-250
• Manufacturer: GSI TECHNOLOGY

HSTL I/O DC Input Characteristics
HSTL I/O AC Input Characteristics
Rev: 1.08 12/2007
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
DC Input Logic High
DC Input Logic Low
Notes:
1.
2.
3.
4.
AC Input Logic High
AC Input Logic Low
V
Notes:
1.
2.
3.
V
REF
SS
Undershoot Measurement and Timing
– 1.0 V
Compatible with both 1.8 V and 1.5 V I/O drivers
These are DC test criteria. DC design criteria is V
eters.
V
V
The peak to peak AC component superimposed on V
To guarantee AC characteristics, V
For devices supplied with HSTL I/O input buffers. Compatible with both 1.8 V and 1.5 V I/O drivers.
50%
Peak to Peak AC Voltage
V
IL
IH
V
SS
IH
(Min)DC = –0.3 V, V
(Max)DC = V
Parameter
Parameter
DDQ
20% tKHKH
+ 0.3 V, V
IL
(Min)AC = –1.5 V (pulse width ≤ 3 ns).
IH
(Max)AC = V
IH
,V
IL
, Trise, and Tfall of inputs and clocks must be within 10% of each other.
DDQ
REF
Symbol
+ 0.85 V (pulse width ≤ 3 ns).
V
V
IH
IL
REF
± 50 mV. The AC V
Symbol
V
(dc)
(dc)
V
V
REF
18/35
IH
IL
may not exceed 5% of the DC component of V
(ac)
(ac)
(ac)
V
REF
Min
–0.3
IH
V
V
DD
+ 0.1
/V
REF
+ 1.0 V
IL
Overshoot Measurement and Timing
Min
50%
—
—
V
levels are defined separately for measuring timing param-
GS8662Q08/09/18/36E-278/250/200/167
V
+ 200
DD
IL
5% V
V
V
V
REF
REF
DD
Max
Max
REF
—
20% tKHKH
– 200
+ 0.3
– 0.1
(DC)
REF
.
Units
© 2005, GSI Technology
mV
mV
mV
Units
V
V
Notes
Notes
3,4
3,4
1
1
1