Datasheet

September 1993 13
Philips Semiconductors Product specification
Programmable delay timer with oscillator 74HC/HCT5555
Notes
1. The RS input has CMOS input switching levels.
2. The value of additional quiescent supply current (∆I
CC
) for a unit load of 1 is given in the family specifications. To
determine ∆I
CC
per input, multiply this value by the unit load coefficient shown in the following table.
UNIT LOAD COEFFICIENT
V
OH
HIGH level
output
voltage R
TC
output
3.98 −− 3.84 − 3.7 − V 4.5 RS = GND;
OSC CON
=V
CC
I
o
= −2.6 mA
3.98 −− 3.84 − 3.7 − V 4.5 RS = V
CC
;
OSC CON
= GND;
untriggered
I
o
=
−0.65 mA
4.4 4.5 − 4.4 − 4.4 − V 4.5 RS = V
CC
;
OSC CON
= V
CC
I
o
= −20 µA
4.4 4.5 − 4.4 − 4.4 − V 4.5 RS = V
CC
;
OSC CON
= GND;
untriggered
I
o
= −20 µA
V
OH
HIGH level
output
voltage C
TC
output
3.98 −− 3.84 − 3.7 − V 4.5
RS = V
IH
;
OSC CON
= V
IH
I
o
= −3.2 mA
V
OL
LOW level
output
voltage R
TC
output
−−0.26 − 0.33 − 0.4 V 4.5
RS = V
CC
;
OSC CON
= V
CC
I
o
= 2.6 mA
− 0 0.1 − 0.1 − 0.1 V 4.5
RS = V
CC
;
OSC CON
= V
CC
I
o
= 20 µA
V
OL
LOW level
output
voltage C
TC
output
−−0.26 − 0.33 − 0.4 V 4.5
RS = V
IL
;
OSC CON
= V
IL
;
untriggered
I
o
= 3.2 mA
INPUT UNIT LOAD COEFFICIENT
MR 0.35
A 0.69
B 0.50
RTR/
RTR 0.35
OSC CON 1.20
S
0
- S
2
0.65
S
3
0.40
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITION
+25 −40 to +85 −0to+125
V
CC
(V)
V
I
OTHER
MIN TYP MAX MIN MAX MIN MAX