VCC Primary Power-Supply Input. When voltage i" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉锛� DS1286I
寤犲晢锛� Maxim Integrated Products
鏂囦欢闋佹暩(sh霉)锛� 13/18闋�
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC TIMEKEEPER WATCHDOG 28-EDIP
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 12
椤炲瀷锛� 鏅�(sh铆)閻�/鏃ユ
鐗归粸(di菐n)锛� 璀﹀牨(b脿o)鍣�锛岄枏骞�锛屾柟娉㈣几鍑猴紝SRAM锛岀洠(ji膩n)瑕栬▓(j矛)鏅�(sh铆)鍣�
瀛樺劜瀹归噺锛� 50B
鏅�(sh铆)闁撴牸寮忥細 HH:MM:SS:hh锛�12/24 灏忔檪(sh铆)锛�
鏁�(sh霉)鎿�(j霉)鏍煎紡锛� YY-MM-DD-dd
鎺ュ彛锛� 骞惰伅(li谩n)
闆绘簮闆诲锛� 4.5 V ~ 5.5 V
闆诲 - 闆绘簮锛岄浕姹狅細 2.4 V ~ 3.5 V
宸ヤ綔婧害锛� -40°C ~ 85°C
瀹夎椤炲瀷锛� 閫氬瓟
灏佽/澶栨锛� 28-DIP 妯″锛�0.61"锛�15.49mm锛�23 寮曠窔
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 28-EDIP
鍖呰锛� 绠′欢
DS1284/DS1286
4 of 18
PIN
DIP
EDIP
PLCC
NAME
FUNCTION
28
VCC
Primary Power-Supply Input. When voltage is applied within
normal limits, the device is fully accessible and data can be
written and read. When a backup supply is connected to the
device and VCC is below VTP, read and writes are inhibited.
However, the timekeeping function continues unaffected by the
lower input voltage.
Figure 1. Block Diagram
Internal Registers
Internal Counters
Internal Registers
Oscillator
8
40.96
PF delay
10
Update seconds through
years and check time of
day alarm
User RAM
50 Bytes
Command
Register
External Registers,
clock, calendar,
time of day alarm
A
ddress
Decode
and
Cont
rol
Power
Switch
4
Swap
pins
External
Registers
Hundredths of
Seconds
External
Registers
Watchdog Alarm
Internal Counters
Data I/O Buffers
A0-A5
CE
OE
WE
V
CC
V
BAT
SQW
INTA
INTB/
(INTB)
1024Hz
TD INT
WD INT
DS1286
only
100Hz
DS1286 only
GND
DQ0鈥揇Q7
DS1284/DS1286
X1
X2
P
N
V
CC
IBH
鐩搁棞(gu膩n)PDF璩囨枡
PDF鎻忚堪
DS1244YP-70 IC NVSRAM 256KBIT 70NS 34PCM
VE-21J-MX-B1 CONVERTER MOD DC/DC 36V 75W
DS1244WP-120 IC NVSRAM 256KBIT 120NS 34PCM
VI-BN0-IU-F3 CONVERTER MOD DC/DC 5V 200W
DS1643-70 IC RAM TIMEKEEP NV 70NS 28-EDIP
鐩搁棞(gu膩n)浠g悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉)
鍙冩暩(sh霉)鎻忚堪
DS1286I+ 鍔熻兘鎻忚堪:瀵�(sh铆)鏅�(sh铆)鏅�(sh铆)閻� RoHS:鍚� 鍒堕€犲晢:Microchip Technology 鍔熻兘:Clock, Calendar. Alarm RTC 绺界窔鎺ュ彛:I2C 鏃ユ湡鏍煎紡:DW:DM:M:Y 鏅�(sh铆)闁撴牸寮�:HH:MM:SS RTC 瀛樺劜瀹归噺:64 B 闆绘簮闆诲-鏈€澶�:5.5 V 闆绘簮闆诲-鏈€灏�:1.8 V 鏈€澶у伐浣滄韩搴�:+ 85 C 鏈€灏忓伐浣滄韩搴�: 瀹夎棰�(f膿ng)鏍�:Through Hole 灏佽 / 绠遍珨:PDIP-8 灏佽:Tube
DS12885 鍔熻兘鎻忚堪:瀵�(sh铆)鏅�(sh铆)鏅�(sh铆)閻� RoHS:鍚� 鍒堕€犲晢:Microchip Technology 鍔熻兘:Clock, Calendar. Alarm RTC 绺界窔鎺ュ彛:I2C 鏃ユ湡鏍煎紡:DW:DM:M:Y 鏅�(sh铆)闁撴牸寮�:HH:MM:SS RTC 瀛樺劜瀹归噺:64 B 闆绘簮闆诲-鏈€澶�:5.5 V 闆绘簮闆诲-鏈€灏�:1.8 V 鏈€澶у伐浣滄韩搴�:+ 85 C 鏈€灏忓伐浣滄韩搴�: 瀹夎棰�(f膿ng)鏍�:Through Hole 灏佽 / 绠遍珨:PDIP-8 灏佽:Tube
DS12885+ 鍔熻兘鎻忚堪:瀵�(sh铆)鏅�(sh铆)鏅�(sh铆)閻� RTC RoHS:鍚� 鍒堕€犲晢:Microchip Technology 鍔熻兘:Clock, Calendar. Alarm RTC 绺界窔鎺ュ彛:I2C 鏃ユ湡鏍煎紡:DW:DM:M:Y 鏅�(sh铆)闁撴牸寮�:HH:MM:SS RTC 瀛樺劜瀹归噺:64 B 闆绘簮闆诲-鏈€澶�:5.5 V 闆绘簮闆诲-鏈€灏�:1.8 V 鏈€澶у伐浣滄韩搴�:+ 85 C 鏈€灏忓伐浣滄韩搴�: 瀹夎棰�(f膿ng)鏍�:Through Hole 灏佽 / 绠遍珨:PDIP-8 灏佽:Tube
DS12885N 鍔熻兘鎻忚堪:瀵�(sh铆)鏅�(sh铆)鏅�(sh铆)閻� RoHS:鍚� 鍒堕€犲晢:Microchip Technology 鍔熻兘:Clock, Calendar. Alarm RTC 绺界窔鎺ュ彛:I2C 鏃ユ湡鏍煎紡:DW:DM:M:Y 鏅�(sh铆)闁撴牸寮�:HH:MM:SS RTC 瀛樺劜瀹归噺:64 B 闆绘簮闆诲-鏈€澶�:5.5 V 闆绘簮闆诲-鏈€灏�:1.8 V 鏈€澶у伐浣滄韩搴�:+ 85 C 鏈€灏忓伐浣滄韩搴�: 瀹夎棰�(f膿ng)鏍�:Through Hole 灏佽 / 绠遍珨:PDIP-8 灏佽:Tube
DS12885N+ 鍔熻兘鎻忚堪:瀵�(sh铆)鏅�(sh铆)鏅�(sh铆)閻� RTC RoHS:鍚� 鍒堕€犲晢:Microchip Technology 鍔熻兘:Clock, Calendar. Alarm RTC 绺界窔鎺ュ彛:I2C 鏃ユ湡鏍煎紡:DW:DM:M:Y 鏅�(sh铆)闁撴牸寮�:HH:MM:SS RTC 瀛樺劜瀹归噺:64 B 闆绘簮闆诲-鏈€澶�:5.5 V 闆绘簮闆诲-鏈€灏�:1.8 V 鏈€澶у伐浣滄韩搴�:+ 85 C 鏈€灏忓伐浣滄韩搴�: 瀹夎棰�(f膿ng)鏍�:Through Hole 灏佽 / 绠遍珨:PDIP-8 灏佽:Tube