- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361034 > LM79CCVF (NATIONAL SEMICONDUCTOR CORP) Microprocessor System Hardware Monitor PDF資料下載
參數(shù)資料
| 型號： | LM79CCVF |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Microprocessor System Hardware Monitor |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PQFP44 |
| 封裝： | 10 X 10 MM, PLASTIC, QFP-44 |
| 文件頁數(shù)： | 6/31頁 |
| 文件大?。?/td> | 481K |
| 代理商： | LM79CCVF |
第1頁第2頁第3頁第4頁第5頁當前第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁
DC Electrical Characteristics
(Continued)
The following specifications apply for +4.25 V
DC
≤
V
CC
≤
+5.75 V
, f
= 8.33 MHz, R
= 25
, unless otherwise speci-
fied.
Boldface limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C. (Note 7)
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limits)
FAN RPM-TO-DIGITAL CONVERTER
FAN1 and FAN2 Nominal Input
RPM (See Section 6.0)
Divisor = 1, Fan Count = 153
(Note 12)
Divisor = 2, Fan Count = 153
(Note 12)
Divisor = 3, Fan Count = 153
(Note 12)
Divisor = 4, Fan Count = 153
(Note 12)
Fan Count = 153 (Note 12)
+25C
≤
T
A
≤
+75C
8800
RPM
4400
RPM
2200
RPM
1100
RPM
FAN3 Design Nominal Input RPM
Internal Clock Frequency
4400
22.5
RPM
kHz (min)
kHz (max)
kHz (min)
kHz (max)
20.2
24.8
19.1
25.9
10C
≤
T
A
≤
+100C
22.5
DIGITAL OUTPUTS (VID4/NTEST, NMI/IRQ)
V
OUT(1)
Logical “1” Output Voltage
V
OUT(0)
Logical “0” Output Voltage
ISA D0–D7 DIGITAL OUTPUTS
V
OUT(1)
Logical “1” Output Voltage
V
OUT(0)
Logical “0” Output Voltage
I
OUT
TRI-STATE
Output Current
I
OUT
=
±
5.0 mA
I
OUT
=
±
5.0 mA
2.4
0.4
V (min)
V (max)
I
OUT
=
±
12.0 mA
I
OUT
=
±
12.0 mA
V
OUT
= 0 V
DC
V
OUT
= V
CC
2.4
0.4
1
1
V (min)
V (max)
μA (max)
μA (min)
0.005
0.005
OPEN DRAIN DIGITAL OUTPUTS (Power Switch Bypass, SDA, RESET, SMI, Chassis Intrusion)
V
OUT(0)
Logical “0” Output Voltage
I
OH
High Level Output Current
RESET and Chassis Intrusion
Pulse Width
DIGITAL INPUTS: SMI__IN, VID0–VID3, VID4/NTEST, BTI, CS, A0, A1, A2, Mode Control and Interface Inputs (IORD, IOWR,
SYSCLK), Data Lines (D0–D7), Chassis Intrusion, and Tach Pulse Logic Inputs (FAN1, FAN2, FAN3)
V
IN(1)
Logical “1” Input Voltage
V
IN(0)
Logical “0” Input Voltage
SERIAL BUS DIGITAL INPUTS (SCL, SDA)
V
IN(1)
Logical “1” Input Voltage
V
IN(0)
Logical “0” Input Voltage
ALL DIGITAL INPUTS EXCEPT FOR BTI
I
IN(1)
Logical “1” Input Current
V
IN
= V
CC
I
IN(0)
Logical “0” Input Current
V
IN
= 0 V
DC
C
IN
Digital Input Capacitance
BIT DIGITAL INPUT
I
IN(1)
Logical “1” Input Current
V
IN
= V
CC
I
IN(0)
Logical “0” Input Current
V
IN
= 0 V
DC
C
IN
Digital Input Capacitance
I
OUT
= 5.0 mA
V
OUT
= V
CC
0.4
100
20
V (min)
μA (max)
ms (min)
0.1
45
2.0
0.8
V (min)
V (max)
0.7 x V
CC
0.3 x V
CC
V (min)
V (max)
0.005
0.005
20
1
1
μA (min)
μA (max)
pF
1
10
μA (max)
μA (max)
pF
500
20
2000
L
www.national.com
6
相關PDF資料 |
PDF描述 |
|---|---|
| LM79 | |
| LM81CIMTX-32 | Serial Interface ACPI-Compatible Microprocessor System |
| LM81 | Serial Interface ACPI-Compatible Microprocessor System |
| LM81CIMT-31 | Serial Interface ACPI-Compatible Microprocessor System |
| LM82CIMQAX | Remote Diode and Local Digital Temperature Sensor with Two-Wire Interface |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM79GCP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Negative Adjustable Voltage Regulator |
| LM79L | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3-Terminal Negative Regulators |
| LM79L00 | 制造商:FCI 制造商全稱:First Components International 功能描述:LM79L00 Series 3-Terminal Negative Output voltage Regulators |
| LM79L05 | 制造商:KEXIN 制造商全稱:Guangdong Kexin Industrial Co.,Ltd 功能描述:Three-terminal negative voltage regulator |
| LM79L05A | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-Terminal 0.1A Negative Voltage Regulator |
發(fā)布緊急采購，3分鐘左右您將得到回復。