Wavecom G900 Manual de usuario descargar pdf (Pagina 41)

WM2C-G900/G1800 23/09/1999

This confidential document is the property of WAVECOM and may not be copied without a written authorization

Operating conditions

Parameter I/O type Min Max Condition

T-

1.1V 1.2 V

T+

1.7V 1.9 V

0.4 V I

= -50 µA

2.0 V I

= 50 µA

3.3.11.4. External Interrupt

WISMO2C provides an external interrupt input which can be used

to detect accessory in a handset for example. This input is edge

sensitive and an interrupt is detected when this signal goes from high to

low (internally pull-up to VCC). If this signal is not used it can be left

open. If used this input has to be driven by an open collector or an open

drain.

Pin description

Signal Pin number I/O I/O type Description

~INTR

16 I CMOS External Interrupt

3.3.11.5. VCC output

This output can be used to supply some external functions like

LCD, to indicate that the module is ON and to switch ON an external

device. VCC has to be used as a digital power.

This output can be used also to determine if the WM2C module is

powered up or not.

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 50 51

Sin comentarios

Wavecom G900 Manual de usuario Pagina 41