GS8180DV18D Datasheet, PDF (13/28 Pages) GSI Technology – 18Mb Burst of 4 SigmaQuad SRAM

GS8180DV18D-250/200/167/133/100
HSTL I/O DC Input Characteristics
Parameter
DC Input Logic High
DC Input Logic Low
V_REF DC Voltage
Note:
Compatible with both 1.8 V and 1.5 V I/O drivers
Symbol
V_IH (dc)
V_IL (dc)
V_REF (dc)
Min
V_REF + 200
V_DDQ (min)/2
Max
V_REF – 200
V_DDQ (max)/2
Units
mV
mV
V
Notes
1
1
1
HSTL I/O AC Input Characteristics
Parameter
Symbol
Min
Max
Units
AC Input Logic High
V_IH (ac)
V_REF + 400
mV
AC Input Logic Low
V_IL (ac)
V_REF – 400
mV
V_REF Peak to Peak AC Voltage
V_REF (ac)
5% V_REF (DC)
mV
Notes:
1. The peak to peak AC component superimposed on V_REF may not exceed 5% of the DC component of V_REF.
2. To guarantee AC characteristics, V_IH,V_IL, Trise, and Tfall of inputs and clocks must be within 10% of each other.
3. For devices supplied with HSTL I/O input buffers. Compatible with both 1.8 V and 1.5 V I/O drivers.
4. See AC Input Definition drawing below.
Notes
3,4
3,4
1
HSTL I/O AC Input Definitions
V_IH (ac)
V_REF
V_IL (ac)
Rev: 2.04 4/2005
13/28
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2002, GSI Technology