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參數(shù)資料
| 型號： | DS87C530 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | EPROM/ROM Micro with Real Time Clock(帶實時時鐘的EPROM/ROM高速微控制器) |
| 中文描述： | EPROM微控制器，帶有實時時鐘 |
| 文件頁數(shù)： | 21/41頁 |
| 文件大?。?/td> | 437K |
| 代理商： | DS87C530 |
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DS87C530/DS83C530
070898 21/41
RING OSCILLATOR EXIT FROM STOP MODE
Figure 4
CRYSTAL
POWER
CRYSTAL
RING
POWER
4–10 ms
uC ENTERS
CINTERRUPT;
CLOCK
uC ENTERS
uC ENTERS
INTERRUPT;
uC ENTERS
POWER SAVED
STOP MODE WITH RING STARTUP
uC OPERATING
STOP MODE WITHOUT RING STARTUP
Note: Diagram assumes that the operation following Stop requires less than 18 ms to complete.
EMI REDUCTION
One of the major contributors to radiated noise in an
8051 based system is the toggling of ALE. The
DS87C530/DS83C530 allows software to disable ALE
when not used by setting the ALEOFF (PMR.2) bit to a
1. When ALEOFF = 1, ALE will still toggle during an off–
chip MOVX. However, ALE will remain in a static when
performing on–chip memory access. The default state
of ALEOFF = 0 so ALE toggles with every instruction
cycle.
PERIPHERAL OVERVIEW
The DS87C530/DS83C530 provides several of the
most commonly needed peripheral functions in micro-
computer–based systems. These new functions
include a second serial port, Power–fail Reset, Power–
fail Interrupt, and a programmable Watchdog Timer.
These are described below, and more details are avail-
able in the High–Speed Microcontroller User’s Guide.
SERIAL PORTS
The DS87C530/DS83C530 provides a serial port
(UART) that is identical to the 80C52. In addition it
includes a second hardware serial port that is a full
duplicate of the standard one. This port optionally uses
pins P1.2 (RXD1) and P1.3 (TXD1). It has duplicate
control functions included in new SFR locations.
Both ports can operate simultaneously but can be at dif-
ferent baud rates or even in different modes. The second
serial port has similar control registers (SCON1; C0h,
SBUF1; C1h) to the original. The new serial port can only
use Timer 1 for timer generated baud rates.
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| DS9503 | ESD Protection Diode with Resistors(帶電阻器的ESD保護二極管) |
| DSTINIM400 | Networked Microcontroller Evaluation Kit |
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| DSTINIS-006 | Sockets Evaluation Board |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS87C530_05 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock |
| DS87C530_1 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM/ROM Micro with Real Time Clock |
| DS87C530+ECL | 制造商:Maxim Integrated Products 功能描述:MICRO OTP RTC 33MHZ 52P TQFP PB-FRR - Trays |
| DS87C530-ECL | 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 安裝風格:SMD/SMT |
| DS87C530-ECL+ | 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 安裝風格:SMD/SMT |
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