IB55 is a CMOS-level input buffer pad with pull-down.
Truth Table
PAD
A
Q
CMOS
P
D
Capacitance
A
Q
Ci (pF)
L
L
A
1.002
H
H
high imp.
L
Area
Power
71.61 mils
2
6.94 W
/
MHz
Delay [ns] = tpd.. = f(SL, L)
with SL = Input Slope [ns] ; L = Output Load [pF]
Output Slope [ns] = op_sl.. = f(L)
with L = Output Load [pF]
AC Characteristics : Tj = 25C VDD = 3.3V Typical Process
AC Characteristics
Characteristics
Symbol
SL = 0.1
SL = 2.0
L = 0.2
L = 1.4
L = 2.0
L = 0.2
L = 1.4
L = 2.0
Delay A to Q
tpdar
0.45
1.07
1.35
0.66
1.27
1.57
tpdaf
0.48
0.95
1.18
0.83
1.30
1.52
Output Slope A to Q
op_slar
0.61
2.43
3.40
0.63
2.43
3.32
op_slaf
0.45
1.66
2.22
0.50
1.62
2.21
Sept. 1996
- 172 -
Rev. N/C
Austria Mikro S ysteme International
R
0.6 m CMOS
CUB
IB55
IB55
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