- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384596 > LM2240 (National Semiconductor Corporation) Programmable Timer/Counter PDF資料下載
參數(shù)資料
| 型號： | LM2240 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | Programmable Timer/Counter |
| 中文描述： | 可編程定時器/計數(shù)器 |
| 文件頁數(shù)： | 2/10頁 |
| 文件大?。?/td> | 201K |
| 代理商： | LM2240 |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Storage Temperature Range
Molded DIP
b
65
§
C to
a
150
§
C
Lead Temperature
Molded DIP (Soldering, 10 Sec.)
265
§
C
1.8W
150
§
C
Power Dissipation (Note 2)
Junction Temperature
Supply Voltage
18V
Output Current
10 mA
Output Voltage
18V
Regulator Output Current
5.0 mA
ESD Tolerance (Note 3)
2000V
Operating Ratings
Temperature Range
0
§
C to 70
§
C
4V to 15V
Supply Range (Note 4)
LM2240
Electrical Characteristics
T
A
e a
25
§
C, V
CC
e a
5.0V, R
e
10 k
X
, C
e
0.1
m
F, unless otherwise specified. See Block Diagram.
Symbol
Characteristic
Conditions
Min
Typ
Max
Units
GENERAL CHARACTERISTIC
I
CC
Supply
Current
Total Circuit
V
CC
e
5.0V, V
TR
e
0V, V
RS
e
5.0V
4.0
7.0
V
CC
e
15V, V
TR
e
0V, V
RS
e
5.0V
13
18
mA
Counter Only
1.5
V
REG
Regulator Output
Measured at Pin 15
V
CC
e
5.0V
3.9
4.4
V
V
CC
e
15V
5.8
6.3
6.8
TIME-BASE
t
ACC
Timing Accuracy
(Note 5)
V
RS
e
0, V
TR
e
5.0V
3.5
5.0
%
D
t/
D
T
Timing Shift
with Temperature
0
§
C
s
T
J
s
70
§
C
V
CC
e
5.0V
200
ppm/
§
C
V
CC
e
15V
80
D
t/
D
V
Timing Shift
with Supply
V
CC
t
8.0V
0.08
0.3
%/V
f
MAX
Max Frequency
R
e
1.0 k
X
, C
e
0.007
m
F
130
kHz
V
MOD
Modulation Voltage Level
Measured at Pin 12
V
CC
e
5.0V
2.80
3.50
4.20
V
V
CC
e
15V
10.5
R
T
Recommended Range
of Timing Resistor
0.001
10
M
X
C
T
Recommended Range
of Timing Capacitor (Note 6)
0.01
1000
m
F
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the component may occur.
Note 2:
Rating applies to ambient temperature at 25
§
C. Above this temperature, derate at 15 mW/
§
C.
Note 3:
Human body model, C
e
100 pF, R
S
e
1500
X
.
Note 4:
For operation below 4.5 VDC, short pin 15 to pin 16.
Note 5:
Timing error solely introduced by LM2240 measured as % of ideal time-base period of T
e
RC.
Note 6:
Under the conditions of high supply voltages (V
CC
l
7.0V) and low values of timing capacitor (C
T
k
0.1
m
F), a 600 pF capacitor may need to be connected
from pin 14 to ground to ensure proper operation.
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2240N | Programmable Timer/Counter |
| LM2418T | Triple 30 MHz CRT Driver |
| LM2451 | 220V Monolithic Triple Channel 12 MHz DC Coupled CRT DTV Driver |
| LM2451TB | 220V Monolithic Triple Channel 12 MHz DC Coupled CRT DTV Driver |
| LM2481NA | 145V Triple Bias Clamp |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2240N | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Programmable Timer/Counter |
| LM22-475-P3 | 功能描述:基本/快動開關(guān) Foot Switch RoHS:否 制造商:Omron Electronics 觸點形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| LM224A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Quadruple operationl amplifiers |
| LM224A_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low power quad operational amplifiers |
| LM224AD | 功能描述:運算放大器 - 運放 Quad RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。