74HC5555 Datasheet, PDF (13/23 Pages) NXP Semiconductors – Programmable delay timer with oscillator

Philips Semiconductors
Programmable delay timer with oscillator
Product specification
74HC/HCT5555
SYMBOL PARAMETER
T_amb (°C)
+25
−40 to +85
MIN TYP MAX MIN MAX
−0 to +125 UNIT _VCC
MIN MAX
(V)
TEST CONDITION
V_I
OTHER
V_OH
HIGH level
3.98 − −
3.84 −
3.7 −
V
output
voltage R_TC
output
3.98 − −
3.84 −
3.7 −
V
4.4 4.5 −
4.4 −
4.4 −
V
4.4 4.5 −
4.4 −
4.4 −
V
HIGH level
V_OH
output
voltage C_TC
3.98 −
−
3.84 −
3.7 −
V
output
LOW level
− − 0.26 − 0.33 −
V_OL
output
voltage R_TC
output
− 0 0.1 − 0.1 −
0.4 V
0.1 V
LOW level
V_OL
output
voltage C_TC
−
−
0.26 −
0.33 −
output
0.4 V
4.5 RS = GND; I_o = −2.6 mA
OSC CON
= V_CC
4.5 RS = V_CC; I_o =
OSC CON −0.65 mA
= GND;
untriggered
4.5 RS = V_CC; I_o = −20 µA
OSC CON
= V_CC
4.5 RS = V_CC; I_o = −20 µA
OSC CON
= GND;
untriggered
RS = V_IH;
4.5 OSC CON I_o = −3.2 mA
= V_IH
RS = V_CC;
4.5 OSC CON I_o = 2.6 mA
= V_CC
RS = V_CC;
4.5 OSC CON I_o = 20 µA
= V_CC
RS = V_IL;
4.5
OSC CON
= V_IL;
I_o = 3.2 mA
untriggered
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
INPUT
MR
A
B
RTR/RTR
OSC CON
S₀ - S₂
S₃
September 1993
UNIT LOAD COEFFICIENT
0.35
0.69
0.50
0.35
1.20
0.65
0.40
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