1GB-AUTO-AS4C128M8D3 Datasheet, PDF (58/84 Pages) Alliance Semiconductor Corporation – Fully synchronous operation

1Gb Auto-AS4C128M8D3
presented by a production tester. System designers should use IBIS or other simulation tools to correlate the timing
reference load to a system environment. Manufacturers correlate to their production test conditions, generally one
or more coaxial transmission lines terminated at the tester electronics.
Figure 24. Reference Load for AC Timing and Output Slew Rate
VDDQ
CK, CK#
DUT
DQ
DQS
DQS#
25 Ohm
VTT = VDDQ/2
Table 38. AC Overshoot/Undershoot Specification for Address and Control Pins
Parameter
Maximum peak amplitude allowed for overshoot area.
Maximum peak amplitude allowed for undershoot area.
Maximum overshoot area above VDD
Maximum undershoot area below VSS
-12BAN
0.4
0.4
0.33
0.33
Unit
V
V
V-ns
V-ns
Table 39. AC Overshoot/Undershoot Specification for Clock, Data, Strobe and Mask
Parameter
Maximum peak amplitude allowed for overshoot area.
Maximum peak amplitude allowed for undershoot area.
Maximum overshoot area above VDD
Maximum undershoot area below VSS
-12BAN
0.4
0.4
0.13
0.13
Unit
V
V
V-ns
V-ns
Confidential
-58-
Rev.1.0 May 2015