- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄381719 > DS1384 (MAXIM INTEGRATED PRODUCTS INC) Watchdog Timekeeping Controller(看門狗計時器芯片) PDF資料下載
參數(shù)資料
| 型號： | DS1384 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | XO, clock |
| 英文描述： | Watchdog Timekeeping Controller(看門狗計時器芯片) |
| 中文描述： | 1 TIMER(S), REAL TIME CLOCK, PQFP44 |
| 封裝： | QFP-44 |
| 文件頁數(shù)： | 1/15頁 |
| 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
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
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
相關PDF資料 |
PDF描述 |
|---|---|
| DS1386 | Nonvolatile Static RAM with a Full Function Real Time Clock (RTC),(帶完整功能的實時時鐘靜態(tài)RAM) |
| DS1386P | RAMified Watchdog Timekeeper(帶完整功能的實時時鐘靜態(tài)RAM) |
| DS1388Z-3 | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 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 |
| DS1390U-18 | RIBBON CABLE, 40WAY, PER M; Cores, No. of:40; 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 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1384FP | 制造商:MAXIM 制造商全稱: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 類別:集成電路 (IC) >> 時鐘/計時 - 實時時鐘 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:時鐘/日歷 特點:警報器，閏年，SRAM 存儲容量:- 時間格式:HH:MM:SS（12/24 小時） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應商設備封裝:8-TDFN EP 包裝:管件 |
| DS1384FP-12+ | 功能描述:實時時鐘 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1384FP-120 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
| DS1384T-120 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
發(fā)布緊急采購，3分鐘左右您將得到回復。