afs600 Actel Corporation, afs600 Datasheet - Page 199

• Manufacturer Part Number: afs600
• Description: Actel Fusion Programmable System Chips Mixed-signal Family With Optional Arm Support
• Manufacturer: Actel Corporation

SSTL2 Class I
Stub-Speed Terminated Logic for 2.5 V memory bus standard (JESD8-9). Fusion devices support Class I. This provides a
differential amplifier input buffer and a push-pull output buffer.
Table 2-153 • Minimum and Maximum DC Input and Output Levels
Figure 2-122 • AC Loading
Table 2-154 • AC Waveforms, Measuring Points, and Capacitive Loads
Table 2-155 • SSTL 2 Class I
SSTL2 Class I
Drive Strength Min., V
15 mA
Notes:
1. Currents are measured at high temperature (100°C junction temperature) and maximum voltage.
2. Currents are measured at 85°C junction temperature.
Input LOW (V)
V
Note: *Measuring point = V
Speed Grade
Std.
–1
–2
Note: For the derating values at specific junction temperature and voltage supply levels, refer to
REF
Timing Characteristics
– 0.2
Commercial-Case Conditions: T
t
0.66
0.56
0.49
DOUT
–0.3
V
trip
IL
Input HIGH (V)
2.13
1.81
1.59
V
t
Max., V
DP
REF
. See
V
REF
– 0.2 V
Table 2-87 on page 2-151
+ 0.2
t
0.04
0.04
0.03
DIN
Min., V Max., V Max., V
REF
+ 0.2
J
1.33
1.14
1.00
t
= 70°C, Worst-Case V
V
PY
Test Point
IH
Measuring Point* (V)
3.6
t
A d v an c ed v1 . 4
0.43
0.36
0.32
EOUT
1.25
SSTL2
Class I
for a complete table of trip points.
25
0.54
V
OL
2.17
1.84
1.62
t
CC
ZL
V
V
TT
Min., V
CCI
= 1.425 V, Worst-Case V
50
V
30 pF
– 0.62 15 15
OH
1.85
1.57
1.38
V
t
ZH
REF
mA mA Max., mA
I
(typ.) (V)
1.25
Actel Fusion Programmable System Chips
OL
t
I
LZ
OH
Table 3-7 on page
t
I
V
HZ
OSL
CCI
87
TT
= 2.3 V, V
(typ.) (V)
1.25
1
t
4.40
3.74
3.29
ZLS
Max., mA
3-9.
I
REF
OSH
83
t
4.08
3.47
3.05
= 1.25 V
ZHS
C
LOAD
1
µA
30
I
10
IL
Units
(pF)
2
2-185
ns
ns
ns
µA
I
10
IH
2