參數(shù)資料
型號(hào)： DS2404
廠商： DALLAS SEMICONDUCTOR
元件分類： Timer or RTC
英文描述： 0 TIMER(S), REAL TIME CLOCK, PDIP16
封裝： 0.300 INCH, DIP-16
文件頁(yè)數(shù)： 1/29頁(yè)
文件大小： 760K
代理商： DS2404
1 of 29
121100
FEATURES
4096 bits of nonvolatile dual-port memory
including real time clock/calendar in binary
format, programmable interval timer, and
programmable power-on cycle counter
1-WireTM
interface
for
MicroLAN
communication at 16.3k bits per second
3-wire host interface for high-speed data
communications at 2M bits per second
Unique, factory-lasered and tested 64-bit
registration number (8-bit family code +
48-bit serial number + 8-bit CRC tester)
assures absolute traceability because no two
parts are alike
Memory partitioned into 16 pages of 256-bits
for packetizing data
256-bit scratchpad with strict read/write
protocols ensures integrity of data transfer
Programmable alarms can be set to generate
interrupts for interval timer, real time clock,
and/or cycle counter
16-pin DIP, SOIC and SSOP packages
Operating temperature range from -40°C to
+85°C
Operating voltage range from 2.8 to 5.5V
ORDERING INFORMATION
DS2404
16-pin DIP
DS2404S
16-pin SOIC
DS2404B
16-pin SSOP
PIN ASSIGNMENT
PIN DESCRIPTION
VCC
– 2.8 to 5.5V
IRQ
– Interrupt Output
RST
– 3-Wire Reset Input
DQ
– 3-Wire Input/Output
I/O
– 1-Wire Input/Output
CLK
– 3-Wire Clock Input
NC
– No Connection
GND
– Ground
VBATB
– Battery Backup Input
VBATO
– Battery Operate Input
1 Hz
– 1 Hz Output
X1, X2
– Crystal Connections
DESCRIPTION
The DS2404 EconoRAM Time Chip offers a simple solution for storing and retrieving vital data and time
information with minimal hardware. The DS2404 contains a unique lasered ROM, real-time
clock/calendar, interval timer, cycle counter, programmable interrupts and 4096-bits of SRAM. Two
separate ports are provided for communication, 1-Wire and 3-wire. Using the 1-Wire port, only one pin is
required for communication, and the lasered ROM can be read even when the DS2404 is without power.
The 3-wire port provides high-speed communication using the traditional Dallas Semiconductor 3-wire
interface. With either interface, a strict protocol for accessing the DS2404 ensures data integrity. Utilizing
backup energy sources, the data is nonvolatile and allows for stand-alone operation.
The DS2404 features can be used to create a stopwatch, alarm clock, time and date stamp, logbook, hour
meter, calendar, system power cycle timer, expiration timer, and event scheduler.
VCC
1
16
VCC
IRQ
2
15
X1
RST
3
14
X2
DQ
4
13
GND
I/O
5
12
NC
CLK
6
11
1HZ
NC
7
10
VBATO
GND
8
9
VBATB
16-PIN DIP (300 MIL)
16-PIN SOIC (300 MIL)
16-PIN SSOP (208 MIL)
See Mechanical Drawings Section
DS2404
EconoRAM Time Chip
www.dalsemi.com
相關(guān)PDF資料
PDF描述
DS2405P SPECIALTY MEMORY CIRCUIT, PDSO6
DS2405 SPECIALTY MEMORY CIRCUIT, PBCY3
DS2405Z SPECIALTY MEMORY CIRCUIT, PDSO4
DS2406P 1K X 1 OTPROM, PDSO6
DS2406 1K X 1 OTPROM, PBCY3
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2404-001 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, DIP16 (GENERIC) - Rail/Tube
DS2404-001+ 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16PDIP - Rail/Tube
DS2404B 功能描述:實(shí)時(shí)時(shí)鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS2404B/T&R 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, SSOP16-TRL (GENERIC) - Tape and Reel
DS2404B+ 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SSOP - Rail/Tube
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