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参数资料
| 型号： | DS1384 |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | XO, clock |
| 英文描述： | Watchdog Timekeeping Controller(看门狗计时器芯片) |
| 中文描述： | 1 TIMER(S), REAL TIME CLOCK, PQFP44 |
| 封装： | QFP-44 |
| 文件页数： | 1/15页 |
| 文件大小： | 130K |
| 代理商： | DS1384 |
DS1384
Watchdog Timekeeping Controller
DS1384
062598 1/15
FEATURES
Keeps track of hundredths of seconds, seconds, min-
utes, hours, days, date of the month, months, and
years with leap year compensation valid up to 2100
Watchdog timer restarts an out–of–control processor
Alarm function schedules real-time related activities
Programmable interrupts and square wave outputs
Bytewide RAM–like access
50 bytes of on board user RAM
Greater than 10 years timekeeping and data retention
in the absence of power with small lithium coin cells
Supports up to 128K x 8 of external static RAM
All timekeeping registers and on board RAM are indi-
vidually addressable via the address and data bus
PIN ASSIGNMENT
A15
V
BAT1
WE
A13
A8
A9
A11
OE
A10
CE
OER
INTB/(INTB)
NC
A14
A12
A7
A6
A5
A4
A3
A2
A1
1
11
33
23
12
22
44
34
G
X
X
G
A
I
V
V
S
P
V
A
D
D
D
G
D
D
D
D
D
C
C
C
B
PIN DESCRIPTION
INTA
INTB(INTB)
A0–A16
DQ0–DQ7
CE
OE
WE
V
CC
GND
NC
SQW
X1, X2
PFO
CEO
OER
V
CCO
V
BAT1
V
BAT2
– Interrupt Output A (open drain)
– Interrupt Output B (open drain)
– Address Inputs
– Data Input/Output
– Chip Enable
– Output Enable
– Write Enable
– +5 Volt Input
– Ground
– No Connection
– Square Wave Output
– 32.768 kHz Crystal Connections
– Power Fail Output
– Chip Enable RAM
– Output Enable RAM
– Voltage Out
– +3 Volt Battery Input
– +3 Volt Battery Input
DESCRIPTION
The DS1384 Watchdog Timekeeping Controller is a
self-contained real time clock, alarm, watchdog timer,
and interval timer which provides control of up to 128K x
8 of external low power CMOS static RAM in a 44–pin
quad flat pack package. An external crystal and battery
are the only components required to maintain time of
day and RAM memory contents in the absence of pow-
er. Access to all RTC functions and the external RAM is
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| DS1390-DS1393 | RIBBON CABLE, 34WAY, PER M; Cores, No. of:34; Conductor make-up:7/36AWG; Wire size, AWG:28AWG; Impedance:119R; Pitch:1.27mm; Voltage rating, AC:50V; Colour:Grey; Capacitance:70.5pF/m; Approval Bodies:UL; Approval category:Style RoHS Compliant: Yes |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1384FP | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Watchdog Timekeeping Controller |
| DS1384FP-12 | 功能描述:IC CTRLR RTC WDOG 120NS 44-MQFP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
| DS1384FP-12+ | 功能描述:实时时钟 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1384FP-120 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| DS1384T-120 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
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