afs600 Actel Corporation, afs600 Datasheet - Page 201

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

SSTL3 Class I
Stub-Speed Terminated Logic for 3.3 V memory bus standard (JESD8-8). Fusion devices support Class I. This provides a
differential amplifier input buffer and a push-pull output buffer.
Table 2-159 • Minimum and Maximum DC Input and Output Levels
Figure 2-124 • AC Loading
Table 2-160 • AC Waveforms, Measuring Points, and Capacitive Loads
Table 2-161 • SSTL3 Class I
SSTL3 Class I
Drive Strength Min., V
14 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
–0.3
0.66
0.56
0.49
DOUT
Input HIGH (V)
V
V
trip
IL
V
REF
Max., V
2.31
1.96
1.72
REF
. See
t
DP
+ 0.2
– 0.2 V
Table 2-87 on page 2-151
t
0.04
0.04
0.03
DIN
Min., V
REF
+ 0.2
J
Measuring Point* (V)
= 70°C, Worst-Case V
V
Test Point
1.25
1.06
0.93
t
IH
PY
Max., V Max., V Min., V mA mA Max., mA
3.6
A d v an c ed v1 . 4
t
0.43
0.36
0.32
EOUT
1.5
SSTL3
Class I
for a complete table of trip points.
25
V
0.7
OL
2.35
2.00
1.75
t
ZL
CC
V
V
TT
= 1.425 V, Worst-Case V
CCI
50
V
30 pF
OH
– 1.1 14 14
1.84
1.56
1.37
t
V
ZH
REF
I
OL
(typ.) (V)
Actel Fusion Programmable System Chips
1.5
t
I
LZ
OH
Table 3-7 on page
t
I
HZ
OSL
54
CCI
V
TT
= 3.0 V, V
(typ.) (V)
1.485
1
4.59
3.90
3.42
t
ZLS
Max., mA
3-9.
I
OSH
REF
51
t
4.07
3.46
3.04
= 1.5 V
ZHS
C
LOAD
1
µA
30
10
I
IL
Units
2
(pF)
2-187
ns
ns
ns
µA
I
10
IH
2