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參數(shù)資料
| 型號： | DS87C520-WCL |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Microcontroller |
| 英文描述： | 8-BIT, UVPROM, 33 MHz, MICROCONTROLLER, CDIP40 |
| 封裝： | LEAD FREE, WINDOWED, CERDIP-40 |
| 文件頁數(shù)： | 25/43頁 |
| 文件大?。?/td> | 709K |
| 代理商： | DS87C520-WCL |
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DS87C520/DS83C520 EPROM/ROM High-Speed Microcontrollers
31 of 43
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC = 4.5V, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Transition Current from 1 to 0 Ports 1, 2, 3
at 2V
ITL
-800
μA
9
Input Leakage Port 0, and
EA pins, I/O
Mode
IL
-10
+10
μA
11
Input Leakage Port 0, Bus Mode
IL
-300
+300
μA
10
RST Pulldown Resistance
RRST
50
200
k
Note 1:
All parameters apply to both commercial and industrial temperature operation, unless otherwise noted.
Note 2:
All voltages are referenced to ground.
Note 3:
Active current measured with 33MHz clock source on XTAL1, VCC = RST = 5.5V, other pins disconnected.
Note 4:
Idle mode current measured with 33MHz clock source on XTAL1, VCC = 5.5V, RST at ground, other pins
disconnected.
Note 5:
Stop mode current measured with XTAL1 and RST grounded, VCC = 5.5V, all other pins disconnected.
Note 6:
When addressing external memory. This specification only applies to the first clock cycle following the transition.
Note 7:
RST = VCC. This condition mimics operation of pins in I/O mode. Port 0 is tri-stated in reset and when at a logic high
state during I/O mode.
Note 8:
During a 0-to-1 transition, a one-shot drives the ports hard for two clock cycles. This measurement reflects port in
transition mode.
Note 9:
Ports 1, 2, and 3 source transition current when being pulled down externally. It reaches its maximum at approximately
2V.
Note 10:
0.45 < VIN < VCC. 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.
Note 11:
0.45 < VIN < VCC. RST = VCC. This condition mimics operation of pins in I/O mode.
Note 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 hold the low level; transitions from 1 to 0 on an I/O pin will also
have to overcome the transition current.
TYPICAL ICC vs. FREQUENCY
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS87C530-ENL | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQFP52 |
| DS87C530-QCL | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC52 |
| DS83C530-ECL | 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQFP52 |
| DS83C530-QNL | 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PQCC52 |
| DS87C530-QNL | 8-BIT, OTPROM, 33 MHz, MICROCONTROLLER, PQCC52 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS87C530 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:EPROM MICRO WITH REAL TIME CLOCK |
| 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 |
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