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參數(shù)資料
| 型號： | DS1486P-120 |
| 英文描述： | RAMified Watchdog Timekeeper |
| 中文描述： | 網(wǎng)狀看門狗計時 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 251K |
| 代理商： | DS1486P-120 |
1 of 17
072401
FEATURES
128 kbytes 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 address and data bus
Interrupt signals active in power-down mode
ORDERING INFORMATION
DS1486
XXX
(32–pin DIP module)
–150
150 ns access
–120
120 ns access
*DS1486P
XXX
34-pin PowerCap Module Board
–150
150 ns access
–120
120 ns access
*DS9034PCX PowerCap Required
(must be ordered separately)
PIN DESCRIPTION
INTB
INTB
(INTB) – Interrupt Output B (open drain)
A0–A16
– Address Inputs
DQ0–DQ7
– Data Input/Output
CE
– Chip Enable
OE
– Output Enable
WE
– Write Enable
V
CC
– +5 Volts
GND
– Ground
SQW
– Square Wave Output
NC
– No Connection
X1, X2
– Crystal Connection
V
BAT
– Battery Connection
– Interrupt Output A (open drain)
PIN ASSIGNMENT
DS1486/DS1486P
RAMified Watchdog Timekeeper
www.maxim-ic.com
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
INTB (INTB)
A15
A16
PFO
V
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
SQW
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
INTA
X1
GND
V
BAT
X2
34-Pin PowerCap Module Board
(Uses DS9034PCX PowerCap)
INTB (INTB)
13
1
2
3
4
5
6
7
8
9
10
11
12
14
31
30
29
28
27
26
25
24
23
22
21
DS1486 128k x 8
32-Pin Encapsulated Package
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ1
DQ2
GND
DQ0
V
CC
A15
INTA/SQW
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
32
19
20
A16
15
16
18
17
相關PDF資料 |
PDF描述 |
|---|---|
| DS1486P-150 | RAMified Watchdog Timekeeper |
| DS1486-120 | RAMified Watchdog Timekeeper |
| DS1486-150 | RAMified Watchdog Timekeeper |
| DS1489AJ | Line Receiver |
| DS1489AMX | Line Receiver |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1486P-120+ | 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 |
| 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
| DS1487M/NOPB | 功能描述:RS-422/RS-485 接口 IC LO PR RS485/1/4 UNIT LOAD MULTIPT XCVR 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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
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