參數(shù)資料
型號(hào): IS89C51-12PL
廠(chǎng)商: INTEGRATED SILICON SOLUTION INC
元件分類(lèi): 微控制器/微處理器
英文描述: 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 37/48頁(yè)
文件大?。?/td> 371K
代理商: IS89C51-12PL
IS89C51
42
1-800-379-4774 — Integrated Silicon Solution, Inc.
MC016-1C
11/21/98
ISSI
DC CHARACTERISTICS
(Over Operating Range; GND = 0V)
Symbol
Parameter
Test conditions
Min
Max
Unit
VIL
Input low voltage (All except
EA)
–0.5
0.2Vcc – 0.1
V
VIL1
Input low voltage (
EA)
–0.5
0.2Vcc – 0.3
V
VIH
Input high voltage
0.2Vcc + 0.9
Vcc + 0.5
V
(All except XTAL 1, RST)
VIH1
Input high voltage (XTAL 1)
0.7Vcc
Vcc + 0.5
V
VSCH+
RST positive schmitt-trigger
0.7Vcc
Vcc + 0.5
V
threshold voltage
VSCH
RST negative schmitt-trigger
0
0.2Vcc
V
threshold voltage
VOL(1)
Output low voltage
Iol = 100
A
0.3
V
(Ports 1, 2, 3)
IOL = 1.6 mA
0.45
V
IOL = 3.5 mA
1.0
V
VOL1(1)
Output low voltage
IOL = 200
A
0.3
V
(Port 0, ALE,
PSEN)IOL = 3.2 mA
0.45
V
IOL = 7.0 mA
1.0
V
VOH
Output high voltage
IOH = –10
A
0.9Vcc
V
(Ports 1, 2, 3, ALE,
PSEN)
Vcc = 4.5V-5.5V
IOL = –25
A
0.75Vcc
V
IOL = –60
A
2.4
V
VOH1
Output high voltage
IOH = –80
A
0.9Vcc
V
(Port 0, ALE,
PSEN)
Vcc = 4.5V-5.5V
IOH = –300
A
0.75Vcc
V
IOH = –800
A
2.4
V
IIL
Logical 0 input current (Ports 1, 2, 3) VIN = 0.45V
–80
A
ILI
Input leakage current (Port 0)
0.45V < VIN < Vcc
–10
+10
A
ITL
Logical 1-to-0 transition current
VIN = 2.0V
–650
A
(Ports 1, 2, 3)
RRST
RST pulldown resister
50
300
K
Note:
1. Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 10 mA
Maximum IOL per 8-bit port
Port 0: 26 mA
Ports 1, 2, 3: 15 mA
Maximum total IOL for all output pins: 71 mA
If IOL exceeds the test condition, VOL may exceed the related specification.
Pins are not guaranteed to sink greater than the listed test conditions.
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