參數(shù)資料
型號: DS1554-100
英文描述: 256K NV Y2KC Timekeeping RAM
中文描述: 256K內(nèi)存時(shí)鐘非易失Y2KC
文件頁數(shù): 2/21頁
文件大?。?/td> 284K
代理商: DS1554-100
DS1554
2 of 21
ORDERING INFORMATION
DS1554P-XXX
(5-Volt)
-70
-100
70 ns access
100 ns access
blank 32-pin DIP Module
P
34-pin PowerCap Module
board*
*DS1554WP-XXX
(3.3 Volt)
-120
-150
120 ns access
150 ns access
blank 32-pin DIP Module
P
34-pin PowerCap Module
board*
*DS9034PCX (PowerCap) Required:
must be ordered seperately
PIN DESCRIPTION
A0-A14
DQ0-DQ7
IRQ
\FT
- Address Input
- Data Input/Outputs
- Interrupt, Frequency Test Output
(Open Drain)
- Power-On Reset Output
(Open Drain)
- Chip Enable
- Output Enable
- Write Enable
- Power Supply Input
- Ground
- No Connection
- Crystal Connection
- Battery Connection
RST
CE
OE
WE
V
CC
GND
NC
X1, X2
V
BAT
DESCRIPTION
The DS1554 is a full function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) with a RTC
alarm, watchdog timer, power-on reset, battery monitor, and 32k x 8 non-volatile static RAM. User
access to all registers within the DS1554 is accomplished with a bytewide interface as shown in Figure 1.
The RTC Registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour
BCD format. Corrections for day of month and leap year are made automatically.
The RTC Registers are double-buffered into an internal and external set. The user has direct access to the
external set. Clock/calendar updates to the external set of registers can be disabled and enabled to allow
the user to access static data. Assuming the internal oscillator is turned on, the internal set of registers are
continuously updated; this occurs regardless of external registers settings to guarantee that accurate RTC
information is always maintained.
相關(guān)PDF資料
PDF描述
DS1554-70 256K NV Y2KC Timekeeping RAM
DS1554W-120 256K NV Y2KC Timekeeping RAM
DS1554 256K NV Y2KC Timekeeping RAM
DS1554P-70 256K NV Y2KC Timekeeping RAM
DS1554P-100 256K NV Y2KC Timekeeping RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1554-70 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
DS1554-70+ 功能描述:實(shí)時(shí)時(shí)鐘 256kB NV RAM Timekeeper 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
DS1554-70IND 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
DS1554-70IND+ 功能描述:實(shí)時(shí)時(shí)鐘 256kB NV RAM Timekeeper 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
DS1554P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock