6 Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. F
12/15/2011
IS61LV25616AL
READ CYCLE SWITCHING CHARACTERISTICS
(1)
(Over Operating Range)
-10 -12
Symbol Parameter Min. Max. Min. Max. Unit
trc Read Cycle Time 10 — 12 — ns
taa Address Access Time — 10 — 12 ns
toHa Output Hold Time 2 — 2 — ns
tace CE Access Time — 10 — 12 ns
tDoe OE Access Time — 4 — 5 ns
tHzoe
(2)
OE to High-Z Output — 4 — 5 ns
tLzoe
(2)
OE to Low-Z Output 0 — 0 — ns
tHzce
(2
CE to High-Z Output 0 4 0 6 ns
tLzce
(2)
CE to Low-Z Output 3 — 3 — ns
tba LB, UB Access Time — 4 — 5 ns
tHzb
(2)
LB, UB to High-Z Output 0 3 0 4 ns
tLzb
(2)
LB, UB to Low-Z Output 0 — 0 — ns
tPu Power Up Time 0 — 0 — ns
tPD Power Down Time — 10 — 12 ns
AC TEST CONDITIONS
Parameter Unit
Input Pulse Level 0V to 3.0V
Input Rise and Fall Times 3 ns
Input and Output Timing and Reference Level 1.5V
Output Load See Figures 1 and 2
AC TEST LOADS
Figure 1 Figure 2
319 Ω
5 pF
Including
jig and
scope
353 Ω
OUTPUT
3.3V
Notes:
1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V, input pulse levels of
0V to 3.0V and output loading specified in Figure 1.
2. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage.
319 Ω
30 pF
Including
jig and
scope
353 Ω
OUTPUT
3.3V
