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DS1243Y
2 of 14
PIN DESCRIPTION
PIN
NAME
FUNCTION
1
RST
Active-Low Reset Input. This pin has an internal pullup resistor
connected to VCC.
2
A12
Address Inputs
3
A7
4
A6
5
A5
6
A4
7
A3
8
A2
9
A1
10
A0
23
A11
21
A10
24
A9
25
A8
11
DQ0
Data In/Data Out
12
DQ1
13
DQ2
15
DQ3
16
DQ4
17
DQ5
18
DQ6
19
DQ7
20
CE
Active-Low Chip-Enable Input
22
OE
Active-Low Output-Enable Input
26
N.C.
No Connection
27
WE
Active-Low Write-Enable Input
28
VCC
Power-Supply Input
14
GND
Ground
DESCRIPTION
The DS1243Y 64K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 8192
words by 8 bits) with a built-in real time clock. The DS1243Y has a self-contained lithium energy source
and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a
condition occurs, the lithium energy source is automatically switched on and write protection is
unconditionally enabled to prevent corrupted data in both the memory and real time clock. The Phantom
Clock provides timekeeping information including hundredths of seconds, seconds, minutes, hours, day,
date, month, and year information. The date at the end of the month is automatically adjusted for months
with fewer than 31 days, including correction for leap years. The Phantom Clock operates in either
24-hour or 12-hour format with an AM/PM indicator.
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相关代理商/技术参数
DS1243Y120+ 制造商:Maxim Integrated Products 功能描述:
DS1243Y-120+ 功能描述:实时时钟 64k NV SRAM w/Phantom Clock 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
DS1243Y-120+ 制造商:Maxim Integrated Products 功能描述:IC
DS1243Y-150 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:64K NV SRAM with Phantom Clock
DS1243Y4120 制造商:Maxim Integrated Products 功能描述:
DS-1243ZJ 制造商:Hikvision USA 功能描述:DOME CAMERA PENDANT MOUNT14.3IN X 7.3 X 7.2IN 制造商:HIKVISION 功能描述:DOME CAMERA PENDANT MOUNT 14.3IN X 7.3 X 7.2IN
DS1244 制造商:BB 制造商全称:BB 功能描述:Low-Power, 24-Bit ANALOG-TO-DIGITAL CONVERTER
DS1244P 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:256k NV SRAM with Phantom Clock