ICM7555IN Datasheet, PDF (5/22 Pages) NXP Semiconductors – General purpose CMOS timer

NXP Semiconductors
ICM7555
General purpose CMOS timer
Table 5. Characteristics …continued
T_amb = 25 °C unless otherwise specified.
Sym Parameter
bol
Conditions
I_I
input current
TRIGGER
V_DD = V_trig = V_max
V_DD = V_trig = 5 V
V_DD = V_trig = V_min
THRESHOLD
V_DD = V_th = V_max
V_DD = V_th = 5 V
V_DD = V_th = V_min
RESET
V_OL LOW-level output voltage
V_OH HIGH-level output voltage
V_o output voltage
t_r(o) output rise time^[4]
t_f(o) output fall time^[4]
f_osc oscillator frequency
V_DD = V_rst = V_max
V_DD = V_rst = 5 V
V_DD = V_rst = V_min
V_DD = V_max; I_sink = 3.2 mA
V_DD = 5 V; I_sink = 3.2 mA
I_source = −1.0 mA
V_DD = V_max
V_DD = 5 V_max
DISCHARGE:
V_DD = 5 V; I_DIS = 10 mA
R_L = 10 MΩ; C_L = 10 pF;
V_DD = 5 V
astable mode
Min
Typ
-
50
-
10
-
1
-
50
-
10
-
1
-
100
-
20
-
2
-
0.1
-
0.2
15.25 15.7
4.0
4.5
-
0.2
-
45
-
20
-
-
[1] The supply current value is essentially independent of the TRIGGER, THRESHOLD and RESET voltages.
[2] Astable timing is calculated using the following equation:
f = ₍---_R----_A----₊-¹---^.-³²---⁸-_R----_B---₎--_C---
The components are defined in Figure 15.
[3] R_A, R_B = 1 kΩ to 100 kΩ; C = 0.1 µF; 5 V < V_DD < 15 V
[4] Parameter is not 100 % tested.
Max
-
-
-
-
-
-
-
-
-
0.4
0.4
-
-
0.4
75
75
500
Unit
pA
pA
pA
pA
pA
pA
pA
pA
pA
V
V
V
V
V
ns
ns
kHz
ICM7555_2
Product data sheet
Rev. 02 — 3 August 2009
© NXP B.V. 2009. All rights reserved.
5 of 22