FX818D2

更新时间： 2024-01-05 20:13:16

品牌	Logo	应用领域
CMLMICRO		电信集成电路电信电路光电二极管
页数	文件大小	规格书
26页	672K
描述
CTCSS SIGNALLING PROCESSOR

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技术参数
数据手册

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FX818D2 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	24
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.84	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G24	长度：	15.4 mm
功能数量：	1	端子数量：	24
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	2.65 mm
标称供电电压：	3.3 V	表面贴装：	YES
电信集成电路类型：	TELECOM CIRCUIT	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	7.5 mm
Base Number Matches：	1

FX818D2 数据手册

CTCSS Signalling Processor

FX818

1.3

Signal List

Package

D2/D5

Signal

Name

Description

Pin No.

Type

O/P

I/P

XTALN

The inverted output of the on-chip oscillator.

XTAL/CLOCK

The input to the on-chip oscillator, for external

Xtal circuit or clock.

SERIAL CLOCK

I/P

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 "C-BUS" Timing Diagram (Figure

4).

COMMAND DATA

REPLY DATA

I/P

The "C-BUS" serial data input from the

µController. Data is loaded into this device in

8-bit bytes, MSB (B7) first, and LSB (B0) last,

synchronised to the SERIAL CLOCK. See

"C-BUS" Timing Diagram (Figure 4).

O/P

The "C-BUS" serial data output to the

µController. The transmission of REPLY DATA

bytes is synchronised to the SERIAL CLOCK

under the control of the CSN input. This 3-state

output is held at high impedance when not

sending data to the µController. See "C-BUS"

Timing Diagram (Figure 4).

CSN

I/P

The "C-BUS" data loading control function: this

input is provided by the µController. Data

transfer sequences are initiated, completed or

aborted by the CSN signal. See "C-BUS" Timing

Diagram (Figure 4).

IRQN

O/P

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

pulldown to logic "0" when active and a high-

impedance when inactive. An external pullup

resistor is required.

The conditions that cause interrupts are

indicated in the IRQ FLAG register and are

effective if not masked out by a corresponding

bit in the IRQ MASK register.

ã 1997 Consumer Microcircuits Limited

D/818/4

1 2 345 6 7...26

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