A-Data
ADD8608A8A
AC Operating Condition
Voltage referenced to Vss = 0V, TA = 0 to 70 ℃
Parameter
Symbol
VIH / VIL
Vtrip
Value
Unit
V
Note
AC input high / low level voltage
VREF+0.31/VREF-0.31
Input timing measurement reference level voltage
Input rise / fall time
1.4
1
V
TR / tF
Voutfef
CL
Ns
V
Output timing measurement reference level
Output load capacitance for access time measurement
1.4
50
pF
2
Note: 1. 3.15V ≦ VDD ≦ 3.6V is applied for VDD8608A4A5.
2. Output load to measure access times is equivalent to two TTL gates and one capacitor (30pF). For details,
refer to AC/DC output load circuit.
Capacitance
TA=25℃, f-=1Mhz
Parameter
Input capacitance
Pin
Symbol
Cl1
Min
2
Max
3.0
Unit
pF
CK, /CK
A0~A12,BS0,BS1,CKE,/CS,/RAS,
/CAS,/WE,DQM
Cl2
2
3.0
pF
Data input / output capacitance DQM
CI/O
4
5
pF
Output load circuit
V
tt=0.5*VDDQ
RT=50Ω
Output
Z0=50Ω
V
REF
=0.5*VDDQ
C
LOAD=30pF
Output Load Circuit (SSTL_2)
Rev 2 April, 2002
5
ADATA [ ADATA Technology Co., Ltd. ]
