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参数资料
| 型号： | DS1318E+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC COUNTER ELAPSED TIME 24-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 62 |
| 类型： | 耗用时间计数器 |
| 特点： | 警报器，方波输出 |
| 时间格式： | 二进制 |
| 数据格式： | 二进制 |
| 接口： | 并联 |
| 电源电压： | 3 V ~ 3.6 V |
| 电压 - 电源，电池： | 1.6 V ~ 3.7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 1433 (CN2011-ZH PDF) |
DS1318
Parallel-Interface Elapsed Time Counter
8
_____________________________________________________________________
Detailed Description
The parallel-interface ETC contains a 44-bit up counter
that maintains the amount of time the counter is
enabled. The resolution of the timer is 244s. A control
register selects which events enable and disable the
counter. The counter is double-buffered into two regis-
ter sets, and the TE bit controls the updating of the
user-readable copy.
The counter can be used to maintain the cumulative
amount of time the primary power source or the battery
powers the device. In this mode, the counter starts
when the internal power-switching circuit enables the
selected power source and stops when the circuit
enables the other source.
The counter can also be used as an external event timer.
In this mode, the counter starts when the signal EXT tog-
gles to the active sate and stops when it toggles to the
inactive state. The active state of the EXT signal is con-
figurable as high or low. EXT is ignored and the counter
is disabled while the device is in power fail.
The interrupt output pin provides two maskable inter-
rupt sources. A 32-bit alarm register allows an interrupt
to be generated whenever the upper 32 bits of the
counter match the alarm register. A periodic interrupt
can also be generated from once every 244s to once
every 1/12,097,152Hz (24.27 days). The alarm and
interrupt output operate when the device is operating
from either supply.
Table 1 shows the factors that control the device oper-
ation. VSO is the battery switchover voltage and is the
lesser of VBAT and VPF. While the device is operating
from the battery with the oscillator running, the battery
Table 1. Operation Modes for Power-Supply Conditions
Pin Description
PIN
NAME
FUNCTION
1
X1
2
X2
Connections for Standard 32.768kHz Quartz Crystal. The internal oscillator circuitry is designed for
operation with a crystal having a 12.5pF specified load capacitance (CL). X1 is the input to the
oscillator and can optionally be connected to an external 32.768kHz oscillator. The output of the
internal oscillator, X2, is left unconnected if an external oscillator is connected to X1.
3, 12
GND
Ground. This pin must be connected to ground for proper operation.
4
EXT
External Counter-Enable Input
5–8
A3–A0
Address Bus Inputs
9, 10, 11,
13–17
DQ0–DQ7
Bidirectional Data Pins
18
CE
Chip-Enable Input, Active Low
19
OE
Output-Enable Input, Active Low
20
WE
Write-Enable Input, Active Low
21
SQW
Square-Wave Output
22
IRQ
Interrupt Output. This active-low open-drain pin requires a pullup resistor.
23
VBAT
Battery/Backup Power-Supply Input
24
VCC
DC Power for Primary Power Supply
VCC
CE
OE
WE
DQ0–DQ7
A0–A4
MODE
POWER
VIH
X
High-Z
X
Deselect
Standby
VIL
XVIL
DIN
AIN
Write
Active
VIL
VIH
DOUT
AIN
Read
Active
VCC > VPF
VIL
VIH
High-Z
AIN
Read
Active
VSO < VCC < VPF
X
High-Z
X
Deselect
CMOS Standby
VCC < VSO < VPF
X
High-Z
X
Data
Battery Current
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1318E/GG8 | 制造商:Maxim Integrated Products 功能描述:44 BIT PARALLEL INTFACE ETC 24P TSS - Rail/Tube |
| DS1318E+ | 功能描述:实时时钟 Parallel-Interface Elapsed Time Cntr 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 |
| DS1318E+T&R | 制造商:Maxim Integrated Products 功能描述:44 BIT PRLLEL INTFC ETC TRL LF - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC COUNTER ELAPSED TIME 24TSSOP |
| DS1318E+T&R | 功能描述:实时时钟 PARALLEL-INTERFACE ELAPSED TIME COUNTER 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 |
| DS13-1Y | 功能描述:固态继电器-工业安装 RoHS:否 制造商:Crydom 控制电压范围:4 VDC to 32 VDC 负载电压额定值:7 VDC to 72 VDC 负载电流额定值:160 A 触点形式: 输出设备:SSR 安装风格:Panel |
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