CMX813P3 データシートの表示（PDF） - MX-COM Inc
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CMX813P3 Datasheet PDF : 19 Pages
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CMX813 Multi-Standard Analog Paging Decoder
4
2. Signal List
CMX813 Advance Information
Package
Pin No.
E4/P3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Signal
Name
SERIAL CLOCK
COMMAND DATA
REPLY DATA
CS
IRQ
NC
NC
VSS
SIGNAL IN
OPAMP OUT
NC
NC
NC
XTAL
XTAL
VDD
Type
Description
input
input
output
input
output
power
input
output
The C-BUS serial clock input. This clock, produced by the
µController, is used for transfer timing of commands and data
to and from the device. See Figure 3.
The C-BUS serial data input from the µController. Data is
loaded into this device in 8-bit bytes, MSB (D7) first, and LSB
(D0) last, synchronized to the SERIAL CLOCK. See Figure 3.
The C-BUS serial data output to the µController. The
transmission of REPLY DATA bytes is synchronized to the
SERIAL CLOCK under the control of the CS input. This 3-
state output is held at high impedance when not sending data
to the µController. See Figure 3.
The C-BUS data loading control function: this input is provided
by the µController. Data transfer sequences are initiated,
completed or aborted by the CS signal. See Figure 3.
This output indicates an interrupt condition to the µController
by going to a logic "0". This is a "wire-ORable" output;
enabling the connection of up to 8 peripherals to 1 interrupt
port on the µController. This pin has a low impedance pull-
down to logic "0" when active and a high-impedance when
inactive. An external pull-up resistor is required.
An interrupt is effective if not masked out by the IRQ MASK
(bit 0 in the SUB-AUDIO CONTROL register $80).
Reserved for future use. Do not make any connection to this
pin.
For manufacturer's use only. Connect to VSS.
The negative supply rail (ground).
The inverting input to the input amplifier.
The output of the input amplifier and the input to the Digital
filter section.
Reserved for future use.
Do not make any connection to these pins.
input
output
power
The input of the on-chip oscillator.
The inverted output of the on-chip oscillator.
The positive supply rail. Levels and voltages are dependent
upon this supply. This pin should be decoupled to VSS by a
capacitor.
Table 1: Signal List
¤2000 MX-COM, Inc.
www.mxcom.com tel: 336 744 5050 800 638 5577 fax: 336 744 5054
Doc. # 20480220.002
4800 Bethania Station Road, Winston-Salem, NC 27105-1201, USA All trademarks and service marks are held by their respective customers.
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