參數(shù)資料
型號(hào)： DS87C530
廠商： Maxim Integrated Products, Inc.
英文描述： EPROM/ROM Micro with Real Time Clock(帶實(shí)時(shí)時(shí)鐘的EPROM/ROM高速微控制器)
中文描述： EPROM微控制器，帶有實(shí)時(shí)時(shí)鐘
文件頁(yè)數(shù)： 28/41頁(yè)
文件大小： 437K
代理商： DS87C530
DS87C530/DS83C530
070898 28/41
NOTES FOR DC ELECTRICAL CHARACTERISTICS:
All parameters apply to both commercial and industrial temperature operation unless otherwise noted.
1. All voltages are referenced to ground.
2. Active current measured with 33 MHz clock source on XTAL1, V
CC
=RST=5.5V, other pins disconnected.
3. Idle mode current measured with 33 MHz clock source on XTAL1, V
CC
=5.5V, RST at ground, other pins discon-
nected.
4. Stop mode current measured with XTAL1 and RST grounded, V
CC
=5.5V, all other pins disconnected. This value
is not guaranteed. Users that are sensitive to this specification should contact Dallas Semiconductor for more
information.
5. When addressing external memory.
6. RST=V
CC
. This condition mimics operation of pins in I/O mode. Port 0 is tristated in reset and when at a logic
high state during I/O mode.
7. During a 0 to 1 transition, a one–shot drives the ports hard for two clock cycles. This measurement reflects port
in transition mode.
8. Ports 1, 2, and 3 source transition current when being pulled down externally. It reaches its maximum at approxi-
mately 2V.
9. 0.45<V
IN
<V
CC
. Not a high impedance input. This port is a weak address holding latch in Bus Mode. Peak current
occurs near the input transition point of the latch, approximately 2V.
10.0.45<V
IN
<V
CC
. RST=V
CC
. This condition mimics operation of pins in I/O mode.
11. V
CC
=0V, V
BAT
=3.3V. 32.768 KHz crystal with 12.5 pF load capacitance between RTCX1 and RTCX2 pins. RTCE
bit set to 1. This value may be as high as 1
μ
A over industrial temperature range.
12.This is the current required from an external circuit to hold a logic low level on an I/O pin while the corresponding
port latch bit is set to 1. This is only the current required to holdthe low level; transitions from 1 to 0 on an I/O
pin will also have to overcome the transition current.
TYPICAL I
CC
VERSUS FREQUENCY
Figure 6
0
2
4
6
8
10 12
16
20
24
30
33
30
25
20
15
5
3
2
MHz
XTAL
@ 5V
I
mA
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS87C530_05 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:EPROM/ROM Microcontrollers with Real-Time Clock
DS87C530_1 制造商:DALLAS 制造商全稱(chēng):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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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-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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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
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