AX500-1BG896 ACTEL [Actel Corporation], AX500-1BG896 Datasheet - Page 43

• Manufacturer Part Number: AX500-1BG896
• Description: Axcelerator Family FPGAs
• Manufacturer: ACTEL [Actel Corporation]

1.5V LVCMOS (JESD8-11)
Low-Voltage Complementary Metal-Oxide Semiconductor for 1.5V is an extension of the LVCMOS standard (JESD8-5)
used for general-purpose 1.5V applications. It uses a 3.3V tolerant CMOS input buffer and a push-pull output buffer.
Table 2-28 • DC Input and Output Levels
AC Loadings
Table 2-29 • AC Test Loads
Table 2-30 • AC Waveforms, Measuring Points, and Capacitive Loads
Timing Characteristics
Table 2-31 • 1.5V LVCMOS I/O Module
* Measuring Point = V
Parameter
LVCMOS15 (JESD8-11) I/O Module Timing
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
DP
PY
ICLKQ
OCLKQ
SUD
SUE
HD
HE
CPWHL
CPWLH
WASYN
REASYN
HASYN
CLR
PRESET
Input Low (V)
Min,V
-0.5
0
V
Worst-Case Commercial Conditions V
IL
0.35V
Max,V
Input Buffer
Output Buffer
Clock-to-Q for the I/O input register
Clock-to-Q for the IO output register and the I/O
enable register
Data Input Set-Up
Enable Input Set-Up
Data Input Hold
Enable Input Hold
Clock Pulse Width High to Low
Clock Pulse Width Low to High
Asynchronous Pulse Width
Asynchronous Recovery Time
Asynchronous Removal Time
Asynchronous Clear-to-Q
Asynchronous Preset-to-Q
Input High (V)
trip
CCI
Test Point
for t
1.5
pd
0.65V
Min,V
Description
CCI
Measuring Point* (V)
35 pF
V
IH
Max,V
0.5V
CCA
3.6
CCI
= 1.425V, V
Test Point
for tristate
v2.7
CCI
Max,V
V
Min.
0.4
0.43
0.45
0.43
= 1.4V, T
'–2' Speed
R=1k
OL
V
REF
Max.
3.63
6.02
0.67
0.67
0.23
0.26
0.00
0.00
0.10
0.00
0.23
0.23
(typ) (V)
N/A
J
R to V
R to GND for t
35 pF for t
5 pF for t
= 70°C
Min.
0.48
0.51
0.48
CCI
'–1' Speed
V
Min,V
CCI
V
for t
phz
OH
-0.4
pzh
/t
Max.
plz
/t
plz
4.14
6.86
0.77
0.77
0.27
0.30
0.00
0.00
0.10
0.00
0.27
0.27
phz
pzl
/t
pzl
/t
pzh
Axcelerator Family FPGAs
Min.
0.57
0.60
0.57
'Std' Speed
8mA
mA
C
I
OL
load
35
Max.
(pF)
4.87
8.07
0.90
0.90
0.31
0.35
0.00
0.00
0.10
0.00
0.31
0.31
-8mA
mA
I
OH
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2-29