參數(shù)資料
型號(hào): DS17487N-3
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 2/31頁(yè)
文件大?。?/td> 0K
描述: IC RTC 3V 4K NV RAM 24-EDIP
標(biāo)準(zhǔn)包裝: 15
類(lèi)型: 時(shí)鐘/日歷
特點(diǎn): 警報(bào)器,夏令時(shí),閏年,NVSRAM,方波輸出
存儲(chǔ)容量: 4KB
時(shí)間格式: HH:MM:SS(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: 并聯(lián)
電源電壓: 2.7 V ~ 3.7 V
電壓 - 電源,電池: 2.5 V ~ 3.7 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 通孔
封裝/外殼: 24-DIP 模塊(0.600",15.24mm)
供應(yīng)商設(shè)備封裝: 24-EDIP
包裝: 管件
DS17285/DS17287/DS17485/DS17487/DS17885/DS17887
Real-Time Clocks
10
____________________________________________________________________
X1
OSCILLATOR
POWER
CONTROL
X2
DS17x87
ONLY
VBAT
GND
DIVIDE
BY 8
REGISTERS A, B, C, D
CLOCK/CALENDAR
UPDATE LOGIC
EXTENDED
USER RAM
2k/4k/8k
BYTES
SELECT
EXTENDED RAM ADDR/
DATA REGISTERS
EXTENDED CONTROL/
STATUS REGISTERS
64-BIT SERIAL NUMBER
CENTURY COUNTER
DATE ALARM
RTC ADDRESS-2
RTC ADDRESS-3
DIVIDE BY
64
DIVIDE BY
64
16:1 MUX
SQUARE-
WAVE
GENERATOR
SQW
IRQ
PWR
KS
RLCR
IRQ
GENERATOR
VCC
VBAUX
BUS
INTERFACE
CS
WR
RD
ALE
AD0–AD7
CLOCK/CALENDAR AND
ALARM REGISTERS
BUFFERED CLOCK/
CALENDAR AND ALARM
REGISTERS
USER RAM
114 BYTES
RAM
CLEAR
LOGIC
DS17x85/87
Figure 1. Functional Diagram
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