afs600 Actel Corporation, afs600 Datasheet - Page 200

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

SSTL2 Class II
Stub-Speed Terminated Logic for 2.5 V memory bus standard (JESD8-9). Fusion devices support Class II. This provides a
differential amplifier input buffer and a push-pull output buffer.
Table 2-156 • Minimum and Maximum DC Input and Output Levels
Figure 2-123 • AC Loading
Table 2-157 • AC Waveforms, Measuring Points, and Capacitive Loads
Table 2-158 • SSTL 2 Class II
2 -1 8 6
SSTL2 Class II
Drive Strength Min., V
18 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
Actel Fusion Programmable System Chips
Timing Characteristics
– 0.2
Commercial-Case Conditions: T
t
–0.3
0.66
0.56
0.49
DOUT
Input HIGH (V)
V
trip
IL
V
V
Max., V
2.17
1.84
1.62
REF
REF
. See
t
DP
– 0.2 V
+ 0.2
Table 2-87 on page 2-151
t
0.04
0.04
0.03
Min., V Max., V Max., V
DIN
REF
+ 0.2
J
= 70°C, Worst-Case V
V
Measuring Point* (V)
Test Point
1.33
1.14
1.00
t
IH
PY
3.6
A d v a n c e d v 1 . 4
t
0.43
0.36
0.32
1.25
EOUT
SSTL2
Class II
for a complete table of trip points.
25
0.35
V
OL
2.21
1.88
1.65
t
ZL
CC
V
V
TT
Min., V
CCI
= 1.425 V, Worst-Case V
25
V
30 pF
– 0.43 18 18
OH
1.77
1.51
1.32
V
t
ZH
REF
(typ.) (V)
1.25
mA mA Max., mA
I
OL
t
LZ
I
OH
Table 3-7 on page
t
HZ
I
124
V
OSL
CCI
TT
= 2.3 V, V
(typ.) (V)
1.25
1
t
4.44
3.78
3.32
ZLS
Max., mA
3-9.
I
169
REF
OSH
t
4.01
3.41
2.99
= 1.25 V
ZHS
C
1
LOAD
µA
I
10
30
IL
Units
2
(pF)
ns
ns
ns
µA
I
10
IH
2