Datasheet > MAX6916EO30+

MAX6916EO30+

更新时间： 2024-11-09 19:49:11

品牌	Logo	应用领域
美信 - MAXIM		时钟光电二极管外围集成电路
页数	文件大小	规格书
28页	338K
描述
Real Time Clock, Non-Volatile, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, LEAD FREE, MO-137AD, QSOP-20

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技术参数
数据手册

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MAX6916EO30+ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP, SSOP20,.25	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8473.30.11.80	风险等级：	5.75
最大时钟频率：	0.032 MHz	信息访问方法：	I2C
中断能力：	Y	JESD-30 代码：	R-PDSO-G20
JESD-609代码：	e3	长度：	8.65 mm
位数：	8	端子数量：	20
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：	SSOP
封装等效代码：	SSOP20,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	3 V	认证状态：	Not Qualified
座面最大高度：	1.73 mm	子类别：	Timer or RTC
最大供电电压：	3.3 V	最小供电电压：	2.7 V
标称供电电压：	3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
最短时间：	SECONDS	处于峰值回流温度下的最长时间：	30
易失性：	NO	宽度：	3.9 mm
uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK	Base Number Matches：	1

MAX6916EO30+ 数据手册

19-3694; Rev 0; 10/05

SPI-Compatible RTC with Microprocessor

Supervisor, Alarm, and NV RAM Controller

General Description

Features

The MAX6916 provides all the features of a real-time

clock (RTC) plus a microprocessor supervisory circuit,

NV RAM controller, and backup-battery monitor func-

tion. In addition, 96 x 8 bits of static RAM are available

for scratchpad storage. The MAX6916 communicates

with a microprocessor through an SPI™-bus-compati-

ble serial interface.

ꢀ Real-Time Clock Counts

Seconds, Minutes, Hours, Date, Month, Day of

Week, and Year with Leap-Year Compensation

Through 2099

ꢀ 4MHz SPI-Bus-Compatible Interface at 5V, 2MHz

at 3V, and 3.3V

The real-time clock/calendar provides seconds, min-

utes, hours, day, date, month, and year information.

The end of the month date is automatically adjusted for

months with fewer than 31 days, including corrections

for leap years through 2099. The clock operates in

either 24hr or 12hr format with an AM/PM indicator. A

time/date-programmable alarm function is provided

with an open-drain, active-low alarm output.

ꢀ SPI Interface Supports Modes 1 and 3 (0, 1 and 1, 1)

ꢀ 96 x 8 Bits of RAM for Scratchpad Data Storage

ꢀ Uses Standard 32.768kHz, 6pF Load, Watch

Crystal

ꢀ Single-Byte or Multiple-Byte (Burst Mode) Data

Transfer for Read or Write of Clock Registers or

RAM

The microprocessor supervisory circuit features an

open-drain, active-low reset available in three different

reset thresholds. A manual reset input and a watchdog

function are included as well.

ꢀ Battery Monitor and Low-Battery Warning Output

Internal Default for Lithium Backup-Battery

Testing

The NV RAM controller provides power for external SRAM

from a backup battery plus chip-enable gating. The back-

up battery also provides data retention of the on-board 96

x 8 bits of RAM. An open-drain, active-low, battery-on sig-

nal alerts the system when operating from a battery.

Pins Available for Other Backup-Battery

Testing Configurations

ꢀ Dual Power-Supply Pins for Primary and Backup

Power

ꢀ Battery-On Output

The battery-test circuitry periodically tests the backup

battery for a low-battery condition. An optional external

resistor network selects different battery thresholds. A

ꢀ NV RAM Controller

Chip-Enable Gating (Control of CE with Reset

and Power Valid)

freshness seal prevents battery drain until the first V

power-up.

for SRAM Power

OUT

The MAX6916 has a crystal-fail-detect circuit and a

data-valid bit. The MAX6916 is available in a 20-pin

QSOP package and is guaranteed to operate over the

-40°C to +85°C extended temperature range.

ꢀ µP Supervisor with Watchdog Input

ꢀ Programmable Time/Date Alarm Output

ꢀ Data Valid Bit (Loss of All Voltage Alerts User of

Applications

Corrupt Data)

Point-of-Sale Equipment

Programmable Logic Controllers

Intelligent Instruments

Fax Machines

ꢀ Crystal-Fail Detect

ꢀ Small 20-Pin, QSOP Surface-Mount Package

Ordering Information

Digital Thermostats

PIN-

PACKAGE

PKG

CODE

Industrial Controls

PART

TEMP RANGE

MAX6916EO30+

MAX6916EO33+

MAX6916EO50+

-40°C to +85°C

20 QSOP

E20-2

Pin Configuration and Selector Guide appear at end of data

sheet.

+Denotes lead-free package.

SPI is a trademark of Motorola, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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与MAX6916EO30+相关器件

型号	品牌	获取价格	描述	数据表
MAX6916EO33	MAXIM	获取价格	SPI-Compatible RTC with Microprocessor Supervisor, Alarm, and NV RAM Controller
MAX6916EO33+	MAXIM	获取价格	Real Time Clock, Non-Volatile, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, LEAD FREE, MO-1
MAX6916EO33+T	MAXIM	获取价格	Real Time Clock, Non-Volatile, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, LEAD FREE, MO-1
MAX6916EO50	MAXIM	获取价格	SPI-Compatible RTC with Microprocessor Supervisor, Alarm, and NV RAM Controller
MAX6916EO50+	MAXIM	获取价格	暂无描述
MAX6916EO50+T	MAXIM	获取价格	Real Time Clock, Non-Volatile, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, LEAD FREE, MO-1
MAX6917_05	MAXIM	获取价格	I2C-Compatible RTC with Microprocessor Supervisor, Alarm, and NV RAM Controller
MAX6917EO30	MAXIM	获取价格	I2C-Compatible RTC with Microprocessor Supervisor, Alarm, and NV RAM Controller
MAX6917EO30+	MAXIM	获取价格	Real Time Clock, Non-Volatile, CMOS, PDSO20, 0.150 INCH, 0.025 INCH PITCH, LEAD FREE, MO-1
MAX6917EO30+T	MAXIM	获取价格	暂无描述

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