- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370570 > HEF4060BTD (NXP SEMICONDUCTORS) MSI 14-stage ripple-carry binary counter/divider and oscillator PDF資料下載
參數(shù)資料
| 型號： | HEF4060BTD |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 通用總線功能 |
| 英文描述： | MSI 14-stage ripple-carry binary counter/divider and oscillator |
| 中文描述： | 4000/14000/40000 SERIES, ASYN NEGATIVE EDGE TRIGGERED 14-BIT UP BINARY COUNTER, PDSO16 |
| 封裝： | PLASTIC, SOT-109, SO-16 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大小： | 110K |
| 代理商： | HEF4060BTD |
January 1995
6
Philips Semiconductors
Product specification
14-stage ripple-carry binary counter/divider
and oscillator
HEF4060B
MSI
Timing component limitations
The oscillator frequency is mainly determined by
R
t
C
t
, provided R
t
<< R2 and R2C2 << R
t
C
t
. The function
of R2 is to minimize the influence of the forward voltage
across the input protection diodes on the frequency. The
stray capacitance C2 should be kept as small as possible.
In consideration of accuracy, C
t
must be larger than the
inherent stray capacitance. R
t
must be larger than the
LOCMOS ‘ON’ resistance in series with it, which typically
is 500
at V
DD
= 5 V, 300
at V
DD
= 10 V and 200
at
V
DD
= 15 V.
The recommended values for these components to
maintain agreement with the typical oscillation formula are:
C
t
≥
100 pF, up to any practical value,
10 k
≤
R
t
≤
1 M
.
Typical crystal oscillator circuit
In Fig.5, R2 is the power limiting resistor. For starting and
maintaining oscillation a minimum transconductance is
necessary.
Fig.5
External component connection for crystal
oscillator.
Fig.6
Test set-up for measuring forward transconductance g
fs
= di
o
/dv
i
at v
o
is constant (see also graph Fig.7);
MR = LOW.
相關PDF資料 |
PDF描述 |
|---|---|
| HEF4066BD | Quadruple bilateral switches |
| HEF4066B | Quadruple bilateral switches(四雙向開關) |
| HEF4066BF | Quadruple bilateral switches |
| HEF4067BD | 16-channel analogue multiplexer/demultiplexer |
| HEF4067BF | 16-channel analogue multiplexer/demultiplexer |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HEF4060BTD-T | 制造商:NXP Semiconductors 功能描述:Counter/Divider Single 14-Bit Binary UP 16-Pin SO T/R |
| HEF4060BT-Q100J | 制造商:NXP Semiconductors 功能描述:HEF4060BT-Q100/SO16/REEL13// - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC COUNTER/DIVIDER OSC 16SOIC |
| HEF4066B | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quad single-pole single-throw analog switch |
| HEF4066BD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quadruple bilateral switches |
| HEF4066BF | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Quadruple bilateral switches |
發(fā)布緊急采購，3分鐘左右您將得到回復。