參數(shù)資料
型號(hào)： DS1673S-5+T&R
廠(chǎng)商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/18頁(yè)
文件大?。?/td> 0K
描述： IC CTRLR SYSTEM PORT 5V 20-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 1,000
類(lèi)型： 便攜系統(tǒng)控制器
特點(diǎn)： 警報(bào)器，閏年，監(jiān)視計(jì)時(shí)器
時(shí)間格式： HH:MM:SS（12/24 小時(shí)）
數(shù)據(jù)格式： YY-MM-DD-dd
接口： 3 線(xiàn)串口
電源電壓： 4.5 V ~ 5.5 V
電壓 - 電源，電池： 2.5 V ~ 3.7 V
工作溫度： 0°C ~ 70°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 20-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 20-SOIC W
包裝： 帶卷 (TR)
1 of 18
REV: 080805
GENERAL DESCRIPTION
The DS1673 portable system controller is a circuit
that incorporates many of the functions necessary for
low-power portable products integrated into one chip.
The device provides a real-time clock (RTC), NV
RAM controller, microprocessor monitor, and a
3-channel, 8-bit analog-to-digital converter (ADC).
Communication with the DS1673 is established
through a simple 3-wire interface.
The RTC provides seconds, minutes, hours, day,
date, month, and year information with leap year
compensation. The RTC also provides an alarm
interrupt. This interrupt works when the DS1673 is
powered by the system power supply or when in
battery-backup operation, so the alarm can be used to
wake up a system that is powered down.
Automatic backup and write protection of an external
SRAM is provided through the VCCO, CEOL, and
CEOH pins. The backup energy source used to power
the RTC is also used to retain RAM data in the
absence of VCC through the VCCO pin. The chip-
enable outputs to RAM (
CEOL and CEOH) are
controlled during power transients to prevent data
corruption.
ORDERING INFORMATION
PART*
VOLTAGE
(V)
PIN-
PACKAGE
TOP MARK
DS1673E-3
3.0
20 TSSOP
DS1673-3
DS1673E-3+
3.0
20 TSSOP
DS1673-3
DS1673E-5
5.0
20 TSSOP
DS1673-5
DS1673E-3/
T&R
3.0
20 TSSOP
DS1673-3
DS1673E-3+
T&R
3.0
20 TSSOP
DS1673-3
DS1673E-5/
T&R
5.0
20 TSSOP
DS1673-5
DS1673S-3
3.0
20 SO
DS1673S-3
DS1673S-5
5.0
20 SO
DS1673S-5
* All devices are specified over the 0°C to +70°C operating range.
A “‘+” anywhere on the top mark denotes a lead-free device.
+ Denotes a lead(Pb)-free/RoHS-compliant device.
FEATURES
Provides Real-Time Clock
Counts Seconds, Minutes, Hours, Date of the
Month, Month, Day of the Week, and Year
with Leap Year Compensation Valid Up to
2100
Power-Control Circuitry Supports System
Power-On from Day/Time Alarm
Microprocessor Monitor
Halts Microprocessor During Power Fail
Automatically Restarts Microprocessor after
Power Failure
Monitors Pushbutton for External Override
Halts and Resets an Out-of-Control
Microprocessor
NV RAM Control
Automatic Battery Backup and Write Protection
to External SRAM
3-Channel, 8-Bit ADC
Simple 3-Wire Interface
+3.0V or +5.0V Operation
PIN CONFIGURATION
DS1673
Portable System Controller
www.maxim-ic.com
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
ST
VCC
X1
X2
AIN0
AIN1
AIN2
RST
BLE
BHE
VBAT
VCCO
SCLK
I/O
CS
CEI
CEOL
CEOH
INT
GND
TSSOP (4.4mm)
SO (300 mils)
DS1673
TOP VIEW
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