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参数资料
型号： DS1743WP-120
厂商： DALLAS SEMICONDUCTOR
元件分类： Timer or RTC
英文描述： 0 TIMER(S), REAL TIME CLOCK, DMA34
封装： 0.700 INCH, MODULE, POWERCAP-34
文件页数： 1/17页
文件大小： 247K
代理商： DS1743WP-120
1 of 17
022301
FEATURES
Integrated NV SRAM, real time clock, crystal, power-
fail control circuit and lithium energy source
Clock registers are accessed identical to the static
RAM. These registers are resident in the eight top
RAM locations.
Century byte register
Totally nonvolatile with over 10 years of operation in
the absence of power
BCD coded century, year, month, date, day, hours,
minutes, and seconds with automatic leap year
compensation valid up to the year 2100
Battery voltage level indicator flag
Power-fail write protection allows for
±10% V
CC
power supply tolerance
Lithium energy source is electrically disconnected to
retain freshness until power is applied for the first time
DIP Module only
–
Standard JEDEC bytewide 8k x 8 static RAM
pinout
PowerCap
Module Board only
–
Surface mountable package for direct connection
to PowerCap containing battery and crystal
–
Replaceable battery (PowerCap)
–
Power-On Reset Output
–
Pin for pin compatible with other densities of
DS174XP Timekeeping RAM
ORDERING INFORMATION
DS1743P-XXX (5V)
-70
70 ns access
-100
100 ns access
blank
28-pin DIP Module
P
34-pin PowerCap Module
board*
*DS1743WP-XXX
(3.3V)
-120
120 ns access
-150
150 ns access
blank
28-pin DIP Module
P
34-pin PowerCap Module
board*
*DS9034PCX (PowerCap) Required:
(must be ordered separately)
PIN ASSIGNMENT
PIN DESCRIPTION
A0-A12
- Address Input
CE
- Chip Enable
CE2
- Chip Enable 2 (DIP
Module only)
OE
- Output Enable
WE
- Write Enable
VCC
- Power Supply Input
GND
- Ground
DQ0-DQ7
- Data Input/Output
NC
- No Connection
RST
- Power-On Reset Output
(PowerCap Module board only)
X1, X2
- Crystal Connection
VBAT
- Battery Connection
DS1743/DS1743P
Y2KC Nonvolatile Timekeeping RAM
www.dalsemi.com
VCC
WE
CE2
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NC
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28-Pin Encapsulated Package
(700-mil Extended)
1
NC
2
3
NC
RST
VCC
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
4
5
6
7
8
9
10
11
12
13
14
15
16
17
NC
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
NC
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
34
NC
X1
GND VBAT
X2
34-Pin Powercap Module Board
(Uses DS9034PCX Powercap)
相关PDF资料
PDF描述
DS1743WP-150 0 TIMER(S), REAL TIME CLOCK, DMA34
DS1743W-150 0 TIMER(S), REAL TIME CLOCK, DMA28
DS1743P-100 0 TIMER(S), REAL TIME CLOCK, DMA34
DS1744-70 REAL TIME CLOCK, PDMA28
DS1744WP-120 REAL TIME CLOCK, DMA34
相关代理商/技术参数
参数描述
DS1743WP-120+ 功能描述:实时时钟 Timekeeping NV RAM 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
DS1743WP-120IND 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
DS1743WP-120IND+ 功能描述:实时时钟 Timekeeping NV RAM 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
DS1743WP-150 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
DS1743WP-150+ 功能描述:实时时钟 Timekeeping NV RAM 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
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