DFF2 Datasheet, PDF (1/2 Pages) ams AG – DFF2 is a fast , static, master-slave D flip-flop with 2x drive strngth. SET and RESET are asynchronous and active low

R
Austria Mikro Systeme International
DFF2
CUB
0.6 µm CMOS
DFF2 is a fast, static, master-slave D flip-flop with 2x drive strength. SET and RESET
are asynchronous and active low.
Truth Table
SN RN D
LHX
HLX
HHH
HH L
HHX
LLX
C Q QN
XH L
XLH
ÉH L
ÉL H
Ê no change
X illegal
Area
2.30 mils²
D ^SN Q
DFF2
C QN
RN
Capacitance
Ci (pF)
D
0.020
C
0.020
SN 0.034
RN 0.041
Power
7.19 µW / MHz
Delay [ns] = tpd.. = f(SL, L)
Output Slope [ns] = op_sl.. = f(L)
with SL = Input Slope [ns] ; L = Output Load [pF]
with L = Output Load [pF]
AC Characteristics : Tj = 25°C VDD = 3.3V Typical Process
AC Characteristics
Characteristics
Symbol
Delay C to Q
Delay C to QN
Delay SN to Q
Delay SN to QN
Delay RN to Q
Delay RN to QN
Output Slope C to Q
Output Slope C to QN
Output Slope SN to Q
Output Slope SN to QN
Output Slope RN to Q
Output Slope RN to QN
tpdcqr
tpdcqf
tpdcqnr
tpdcqnf
tpdsnq
tpdsnqn
tpdrnq
tpdrnqn
op_slcqr
op_slcqf
op_slcqnr
op_slcqnf
op_slsnq
op_slsnqn
op_slrnq
op_slrnqn
SL = 0.1
L = 0.2 L = 1.4 L = 2.0
0.88 1.84 2.29
0.80 1.71 2.15
1.20 2.14 2.65
1.18 2.09 2.54
0.88 1.83 2.32
1.18 2.07 2.50
2.15 3.04 3.49
0.95 1.88 2.33
0.67 3.51 5.01
0.60 2.85 4.25
0.71 3.55 5.08
0.58 2.93 4.03
0.73 3.70 5.11
0.60 2.88 4.08
0.66 3.05 4.13
0.70 3.48 5.12
SL = 2.0
L = 0.2 L = 1.4 L = 2.0
1.04 2.00 2.46
0.96 1.88 2.31
1.37 2.31 2.82
1.35 2.25 2.70
1.20 2.18 2.65
1.50 2.40 2.83
2.34 3.25 3.67
1.27 2.22 2.67
0.67 3.53 5.03
0.61 3.00 4.08
0.71 3.60 5.00
0.56 2.93 4.03
0.71 3.63 5.25
0.58 2.91 4.12
0.65 2.95 4.06
0.70 3.58 5.11
Sept. 1996
- 132 -
Rev. N/C