SN54LV221A_08 Datasheet, PDF (8/23 Pages) Texas Instruments – DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS

SN54LV221A, SN74LV221A
DUAL MONOSTABLE MULTIVIBRATORS
WITH SCHMITTĆTRIGGER INPUTS
SCLS450G − DECEMBER 1999 − REVISED APRIL 2005
switching characteristics over recommended operating free-air temperature range,
V_CC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TEST
CONDITIONS
TA = 25°C
SN54LV221A SN74LV221A
UNIT
MIN TYP MAX MIN MAX MIN MAX
A or B
Q or Q
7.1* 12*
1* 14*
1
14
tpd
CLR
Q or Q
CL = 15 pF
CLR trigger
Q or Q
6.5* 9.4*
7.3* 12.9*
1* 11*
1* 15*
1
11 ns
1
15
A or B
Q or Q
8.2
14
1
16
1
16
tpd
CLR
Q or Q
CL = 50 pF
CLR trigger
Q or Q
7.4 11.4
8.6 14.9
1
13
1
17
1
13 ns
1
17
CL = 50 pF,
Cext = 28 pF,
Rext = 2 kΩ
171 200
CL = 50 pF,
tw†
Q or Q
Cext = 0.01 µF,
90 100 110
Rext = 10 kΩ
∆tw‡
CL = 50 pF,
Cext = 0.1 µF,
Rext = 10 kΩ
CL = 50 pF
0.9
1 1.1
±1
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
† _{tw = Pulse duration at Q and Q outputs}
‡ _{∆tw = Output pulse-duration variation (Q and Q) between circuits in same package}
240
90 110
0.9 1.1
240 ns
90 110 ms
0.9 1.1 ms
%
operating characteristics, T_A = 25°C
PARAMETER
Cpd Power dissipation capacitance
TEST CONDITIONS
CL = 50 pF, f = 10 MHz
VCC
3.3 V
5V
TYP UNIT
50
pF
51
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