參數(shù)資料
型號： DS87C530-ENL
廠商： Maxim Integrated Products
文件頁數(shù)： 2/45頁
文件大?。?/td> 0K
描述： IC MCU EPR/ROM W/RTC 33MZ 52TQFP
標(biāo)準(zhǔn)包裝： 96
系列： 87C
核心處理器： 8051
芯體尺寸： 8-位
速度： 33MHz
連通性： EBI/EMI，SIO，UART/USART
外圍設(shè)備： 電源故障復(fù)位，WDT
輸入/輸出數(shù)： 32
程序存儲器容量： 16KB（16K x 8）
程序存儲器類型： OTP
RAM 容量： 1K x 8
電壓 - 電源 (Vcc/Vdd)： 4.5 V ~ 5.5 V
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 52-TQFP
包裝： 托盤
DS87C530/DS83C530 EPROM/ROM Microcontrollers with Real-Time Clock
10 of 45
Table 1. Special Function Register Locations (continued)
* Functions not present in the 80C52 are in bold.
REGISTER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
ADDRESS
TL2
CCh
TH2
CDh
PSW
CY
AC
F0
RS1
RS0
OV
FL
P
D0h
WDCON
SMOD_1
POR
EPFI
PFI
WDIF
WTRF
EWT
RWT
D8h
ACC
E0h
EIE
—
ERTCI
EWDI
EX5
EX4
EX3
EX2
E8h
B
F0h
RTASS
F2h
RTAS
0
F3h
RTAM
0
F4h
RTAH
0
F5h
EIP
—
PRTCI
PWDI
PX5
PX4
PX3
PX2
F8h
RTCC
SSCE
SCE
MCE
HCE
RTCRE
RTCWE
RTCIF
RTCE
F9h
RTCSS
FAh
RTCS
0
FBh
RTCM
0
FCh
RTCH
FDh
RTCD0
FEh
RTCD1
FFh
NONVOLATILE FUNCTIONS
The DS87C530/DS83C530 provide two functions that are permanently powered if a user supplies an
external energy source. These are an on-chip RTC and a nonvolatile SRAM. The chip contains all related
functions and controls. The user must supply a backup source and a 32.768kHz timekeeping crystal.
REAL-TIME CLOCK
The on-chip RTC keeps time of day and calendar functions. Its time base is a 32.768kHz crystal between
pins RTCX1 and RTCX2. The RTC maintains time to 1/256 of a second. It also allows a user to read (and
write) seconds, minutes, hours, day of the week, and date. Figure 2 shows the clock organization.
Timekeeping registers allow easy access to commonly needed time values. For example, software can
simply check the elapsed number of minutes by reading one register. Alternately, it can read the complete
time of day, including subseconds, in only four registers. The calendar stores its data in binary form.
While this requires software translation, it allows complete flexibility as to the exact value. A user can
start the calendar with a variety of selections since it is simply a 16-bit binary number of days. This
number allows a total range of 179 years beginning from 0000.
The RTC features a programmable alarm condition. A user selects the alarm time. When the RTC reaches
the selected value, it sets a flag. This will cause an interrupt if enabled, even in Stop mode. The alarm
consists of a comparator that matches the user value against the RTC actual value. A user can select a
match for 1 or more of the sub-seconds, seconds, minutes, or hours. This allows an interrupt
相關(guān)PDF資料
PDF描述
DS87C530-ECL IC MCU EPR/ROM W/RTC 33MZ 52TQFP
1061541021 ADPT OPT MULTIMODE SC-ST BEIGE
1061541011 ADPT OPT MULTIMODE FC-SC BEIGE
DS80C323-ECD IC MCU HI SPEED 18MHZ 44-TQFP
MCF51JM128VLH IC MCU 128/16K FLASH/SRAM 64LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS87C530-ENL+ 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock
DS87C530-KCL 功能描述:8位微控制器 -MCU EPROM MCU w/RTC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
DS87C530-QCL 功能描述:8位微控制器 -MCU EPROM MCU w/RTC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
DS87C530-QCL+ 功能描述:8位微控制器 -MCU EPROM MCU w/RTC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*