參數(shù)資料
型號(hào)： DS1486P
廠商： Maxim Integrated Products, Inc.
英文描述： RAMified Watchdog Timekeeper(RAM化的看門狗計(jì)時(shí)器)
中文描述： RAMified看門狗計(jì)時(shí)器
文件頁數(shù)： 1/16頁
文件大小： 174K
代理商： DS1486P
DS1486/DS1486P
RAMified Watchdog Timekeeper
DS1486/DS1486P
PRELIMINARY
070298 1/16
FEATURES
128K bytes of user NV RAM
Integrated NV SRAM, real time clock, crystal, power–
fail control circuit and lithium energy source
Totally nonvolatile with over 10 years of operation in
the absence of power
Watchdog timer restarts an out–of–control processor
Alarm function schedules real–time related activities
such as system wakeup
Programmable interrupts and square wave output
All registers are individually addressable via the ad-
dress and data bus
Interrupt signals active in power-down mode
ORDERING INFORMATION
DS1486
XXX
(32–pin DIP module)
–150 150 ns access
120 ns access
–120
*DS1486P
34–pin PowerCap Module Board
–150 150 ns access
120 ns access
–120
*DS9034PCX
PowerCap required
(must be ordered seperately)
XXX
PIN DESCRIPTION
INTB
INTB (INTB)
A0–A16
DQ0–DQ7
CE
OE
WE
V
CC
GND
SQW
NC
X1, X2
V
BAT
– Interrupt Output A (open drain)
– Interrupt Output B (open drain)
– Address Inputs
– Data Input/Output
– Chip Enable
– Output Enable
– Write Enable
– +5 Volts
– Ground
– Square Wave Output
– No Connection
– Crystal Connection
– Battery Connection
PIN ASSIGNMENT
DQ3
DQ4
DQ5
DQ6
DQ7
A10
CE
A11
A9
A8
VCC
A15
INTA/SQW
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
A14
A13
INTB (INTB)
WE
OE
DS1486 128K x 8
32–PIN ENCAPSULATED
PACKAGE
A16
OE
CE
WE
PFO
V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
SQW
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
A15
A16
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
34–PIN POWERCAP MODULE BOARD
(USES DS9034PCX POWERCAP)
X1
GND
V
BAT
X2
INTB (INTB)
INTA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1486P-120 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
DS1486P-120+ 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
DS1486P-150 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:RAMified Watchdog Timekeeper
DS1487 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Power RS-485 1⁄4 Unit Load Multipoint Transceiver
DS1487M 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube
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