PCF2120 Datasheet, PDF (1/14 Pages) NXP Semiconductors – Quartz oscillator

PCF2120
Quartz oscillator
Rev. 01 — 5 February 2008
Product data sheet
1. General description
The PCF2120 is a CMOS quartz oscillator optimized for low power consumption.
The 32 kHz output signal is gated using an enable signal.
2. Features
I Clock operating voltage: 1.5 V to 5.5 V
I Low backup current: typical 0.85 µA at V_DD = 3.0 V and T_amb = 25 °C
I 32.768 kHz output for peripheral devices
I Two integrated oscillator capacitors
I Push-pull output
I Internal power-on reset
3. Applications
I Portable instruments
I Industrial products
I Battery powered products
4. Quick reference data
Table 1. Quick reference data
Symbol Parameter
Conditions
Min Typ Max Unit
V_DD
supply voltage
[1] _{1.5 -}
5.5 V
I_DD
supply current
clock output disabled
V_DD = 2.0 V; T_amb = 25 °C
-
210 450 nA
V_DD = 3.0 V;
T_amb = −40 °C to +85 °C
-
265 650 nA
clock output enabled at 32 kHz
V_DD = 2.0 V; T_amb = 25 °C
-
615 900 nA
V_DD = 3.0 V;
T_amb = −40 °C to +85 °C
T_stg
storage temperature
-
875 1100 nA
−65 -
+150 °C
[1] For reliable oscillator start-up at power-up: V_DD > V_DD(min) + 0.3 V.