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參數(shù)資料
| 型號(hào)： | DS1743P |
| 英文描述： | Y2KC Nonvolatile Timekeeping RAM |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 247K |
| 代理商： | DS1743P |
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
-100
70 ns access
100 ns access
blank
P
28-pin DIP Module
34-pin PowerCap Module
board*
*DS1743WP-XXX
(3.3V)
-120
-150
120 ns access
150 ns access
blank
P
28-pin DIP Module
34-pin PowerCap Module
board*
*DS9034PCX (PowerCap) Required:
(must be ordered separately)
PIN ASSIGNMENT
PIN DESCRIPTION
A0-A12
CE
CE2
- Address Input
- Chip Enable
- Chip Enable 2 (DIP
Module only)
- Output Enable
- Write Enable
- Power Supply Input
- Ground
- Data Input/Output
- No Connection
- Power-On Reset Output
(PowerCap Module board only)
- Crystal Connection
- Battery Connection
OE
WE
V
CC
GND
DQ0-DQ7
NC
RST
X1, X2
V
BAT
DS1743/DS1743P
Y2KC Nonvolatile Timekeeping RAM
www.dalsemi.com
V
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-Pin Encapsulated Package
(700-mil Extended)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
34-Pin Powercap Module Board
(Uses DS9034PCX Powercap)
NC
NC
NC
RST
V
WE
OE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
GND
NC
NC
NC
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
33
NC
X1
GND V
BAT
X2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1744 | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1744-70 | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1744-70IND | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1744P | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1744P-70 | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1743P/WP | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:PowerCap with Crystal |
| DS1743P-100 | 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 |
| DS1743P-100+ | 功能描述:實(shí)時(shí)時(shí)鐘 Timekeeping NV RAM 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 |
| DS1743P-100IND | 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 |
| DS1743P-100IND+ | 功能描述:實(shí)時(shí)時(shí)鐘 Timekeeping NV RAM 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 |
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