A3PE1500-1FG896 ACTEL [Actel Corporation], A3PE1500-1FG896 Datasheet - Page 33

• Manufacturer Part Number: A3PE1500-1FG896
• Description: ProASIC3E Flash Family FPGAs
• Manufacturer: ACTEL [Actel Corporation]

Table 2-19 • I/O Output Buffer Maximum Resistances
Table 2-20 • I/O Weak Pull-Up/Pull-Down Resistances
Standard
HSTL (II)
SSTL2 (I)
SSTL2 (II)
SSTL3 (I)
SSTL3 (II)
Notes:
1. These maximum values are provided for informational reasons only. Minimum output buffer
2. R
3. R
V
3.3 V
2.5 V
1.8 V
1.5 V
Notes:
1. R
2. R
CCI
resistance values depend on V
board design considerations and detailed output buffer resistances, use the corresponding
IBIS models located on the Actel website at http://www.actel.com/techdocs/models/ibis.html.
(PULL-DOWN-MAX)
(PULL-UP-MAX)
(WEAK PULL-DOWN-MAX)
(WEAK PULL-UP-MAX)
Minimum and Maximum Weak Pull-Up/Pull-Down Resistance Values
= (V
Min.
10 k
11 k
18 k
19 k
= (V
CCImax
= (V
OLspec
R(
= (V
(WEAK PULL-UP)
CCImax
– V
) / I
OLspec
OHspec
(Ω)
– V
OLspec
CCI
) / I
OHspec
) / I
, drive strength selection, temperature, and process. For
WEAK PULL-DOWN-MIN
Drive Strength
Max.
v1.2
OHs pe c
1
45 k
55 k
70 k
90 k
) / I
15 mA
15 mA
18 mA
14 mA
21 mA
WEAK PULL-UP-MIN
1
(continued)
ProASIC3E DC and Switching Characteristics
Min.
10 k
12 k
17 k
19 k
R
PULL-DOWN
R
(WEAK PULL-DOWN)
25
27
13
44
18
(Ω)
(Ω)
2
110 k
140 k
Max.
R
45 k
74 k
2
PULL-UP
25
31
15
69
32
(Ω)
2 - 21
3