Datasheet > MAX7315AUE+T

MAX7315AUE+T

更新时间： 2024-01-10 02:09:39

品牌	Logo	应用领域
美信 - MAXIM		信息通信管理光电二极管外围集成电路
页数	文件大小	规格书
26页	1134K
描述
Parallel I/O Port, 8-Bit, 8 I/O, BICMOS, PDSO16, 4.40 MM, MO-153AB, TSSOP-16

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MAX7315AUE+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TSSOP
包装说明：	TSSOP, TSSOP16,.25	针数：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	1.14	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e3	长度：	5 mm
湿度敏感等级：	1	位数：	8
I/O 线路数量：	8	端口数量：	1
端子数量：	16	最高工作温度：	125 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	260	电源：	2.5/3.3 V
认证状态：	Not Qualified	座面最大高度：	1.1 mm
子类别：	Parallel IO Port	最大供电电压：	3.6 V
最小供电电压：	2 V	标称供电电压：	3.3 V
表面贴装：	YES	技术：	BICMOS
温度等级：	AUTOMOTIVE	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4.4 mm	uPs/uCs/外围集成电路类型：	PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches：	1

MAX7315AUE+T 数据手册

8-Port I/O Expander with LED Intensity

Control, Interrupt, and Hot-Insertion Protection

ports register latches the current-input logic level of the

affected eight ports. Transition detection allows all ports

configured as inputs to be monitored for changes in

their logic status. The action of reading the input ports

condition. This sample is continuously compared with

the actual input conditions. A detected change in input

condition causes the INT/O8 interrupt output to go low,

if configured as an interrupt output. The interrupt is

cleared either automatically if the changed input returns

to its original state, or when the input ports register is

read.

PWM intensity control uses a 4-bit master control and 4

bits of individual control per output (Tables 13, 14). The

4-bit master control provides 16 levels of overall intensi-

ty control, which applies to all PWM-enabled output

ports. The master control sets the maximum pulse width

from 1/15 to 15/15 of the PWM time period. The individ-

ual settings comprise a 4-bit number further reducing

the duty cycle to be from 1/16 to 15/16 of the time win-

dow set by the master control.

For applications requiring the same PWM setting for all

output ports, a single global PWM control can be used

instead of all the individual controls to simplify the con-

trol software and provide 240 steps of intensity control

(Tables 10 and 13).

The INT/O8 pin can be configured as either an interrupt

output or as a 9th output port with the same static or

blink controls as the other eight ports (Table 4).

Standby Mode

When the serial interface is idle and the PWM intensity

control is unused, the MAX7315 automatically enters

standby mode. If the PWM intensity control is used, the

operating current is slightly higher because the internal

PWM oscillator is running. When the serial interface is

active, the operating current also increases because

Port Output Control and LED Blinking

The blink phase 0 register sets the output logic levels of

the eight ports P0–P7 (Table 8). This register controls

the port outputs if the blink function is disabled. A dupli-

cate register, the blink phase 1 register, is also used if

the blink function is enabled (Table 9). In blink mode,

the port outputs can be flipped between using the blink

phase 0 register and the blink phase 1 register using

software control (the blink flip flag in the configuration

the MAX7315, like all I C slaves, has to monitor every

transmission.

Serial Interface

Serial Addressing

PWM Intensity Control

The MAX7315 includes an internal oscillator, nominally

32kHz, to generate PWM timing for LED intensity con-

trol. PWM intensity control can be enabled on an out-

put-by-output basis, allowing the MAX7315 to provide

any mix of PWM LED drives and glitch-free logic out-

puts (Table 10). PWM can be disabled entirely, in which

case all output ports are static and the MAX7315 oper-

ating current is lowest because the internal oscillator is

turned off.

The MAX7315 operates as a slave that sends and

receives data through an I C-compatible 2-wire inter-

face. The interface uses a serial data line (SDA) and a

serial clock line (SCL) to achieve bidirectional commu-

nication between master(s) and slave(s). A master (typ-

ically a microcontroller) initiates all data transfers to and

from the MAX7315 and generates the SCL clock that

synchronizes the data transfer (Figure 2).

The MAX7315 SDA line operates as both an input and

an open-drain output. A pullup resistor, typically 4.7kΩ,

is required on SDA. The MAX7315 SCL line operates

SDA

BUF

SU,STA

SU,DAT

HD,STA

LOW

SU,STO

HD,DAT

SCL

HIGH

HD,STA

START CONDITION

REPEATED START CONDITION

STOP

CONDITION

START

CONDITION

Figure 2. 2-Wire Serial Interface Timing Details

_______________________________________________________________________________________

1...4 5 678 9 10...26

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与MAX7315AUE+T相关器件

型号	品牌	描述	获取价格	数据表
MAX7315AUE-G05	MAXIM	Parallel I/O Port, 8 I/O, BICMOS, PDSO16, TSSOP-16	获取价格
MAX7315AUE-T	MAXIM	Parallel I/O Port, 8-Bit, 8 I/O, BICMOS, PDSO16, 4.40 MM, MO-153AB, TSSOP-16	获取价格
MAX7316	MAXIM	10-Port I/O Expander with LED Intensity Control and Interrupt	获取价格
MAX7316AEE	MAXIM	10-Port I/O Expander with LED Intensity Control and Interrupt	获取价格
MAX7316AEE+	MAXIM	暂无描述	获取价格
MAX7316ATE	MAXIM	10-Port I/O Expander with LED Intensity Control and Interrupt	获取价格

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