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參數(shù)資料
| 型號(hào)： | MC14521 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | 24-Stage Frequency Divider |
| 中文描述： | 24級(jí)分頻器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大小： | 219K |
| 代理商： | MC14521 |
Semiconductor Components Industries, LLC, 2000
March, 2000 – Rev. 3
1
Publication Order Number:
MC14521B/D
The MC14521B consists of a chain of 24 flip–flops with an input
circuit that allows three modes of operation. The input will function as
a crystal oscillator, an RC oscillator, or as an input buffer for an
external oscillator. Each flip–flop divides the frequency of the
previous flip–flop by two, consequently this part will count up to 2
24
=
16,777,216. The count advances on the negative going edge of the
clock. The outputs of the last seven–stages are available for added
flexibility.
All Stages are Resettable
Reset Disables the RC Oscillator for Low Standby Power Drain
RC and Crystal Oscillator Outputs Are Capable of Driving External
Loads
Test Mode to Reduce Test Time
V
DD
′
and V
SS
′
Pins Brought Out on Crystal Oscillator Inverter to
Allow the Connection of External Resistors for Low–Power
Operation
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Capable of Driving Two Low–power TTL Loads or One Low–power
Schottky TTL Load over the Rated Temperature Range.
MAXIMUM RATINGS
(Voltages Referenced to V
SS
) (Note 2.)
Symbol
Parameter
Value
Unit
V
DD
DC Supply Voltage Range
–0.5 to +18.0
V
V
in
, V
out
Input or Output Voltage Range
(DC or Transient)
–0.5 to V
DD
+ 0.5
V
I
in
, I
out
Input or Output Current
(DC or Transient) per Pin
±
10
mA
P
D
Power Dissipation,
per Package (Note 3.)
500
mW
T
A
Ambient Temperature Range
–55 to +125
°
C
T
stg
Storage Temperature Range
–65 to +150
°
C
T
L
Lead Temperature
(8–Second Soldering)
260
°
C
2. Maximum Ratings are those values beyond which damage to the device
may occur.
3. Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C
This device contains protection circuitry to guard against damage due to high
static voltages or electric fields. However, precautions must be taken to avoid
applications of any voltage higher than maximum rated voltages to this
high–impedance circuit. For proper operation, V
in
and V
out
should be constrained
to the range V
SS
(V
in
or V
out
)
V
DD
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g.,
either V
SS
or V
DD
). Unused outputs must be left open.
http://onsemi.com
A
WL or L
YY or Y
WW or W = Work Week
= Assembly Location
= Wafer Lot
= Year
Device
Package
Shipping
ORDERING INFORMATION
MC14521BCP
PDIP–16
2000/Box
MC14521BD
SOIC–16
48/Rail
MC14521BDR2
SOIC–16
2500/Tape & Reel
1. For ordering information on the EIAJ version of
the SOIC packages, please contact your local
ON Semiconductor representative.
MARKING
DIAGRAMS
16
1
PDIP–16
P SUFFIX
CASE 648
MC14521BCP
AWLYYWW
SOIC–16
D SUFFIX
CASE 751B
1
16
14521B
AWLYWW
SOEIAJ–16
F SUFFIX
CASE 966
1
16
MC14521B
AWLYWW
MC14521BFEL
SOEIAJ–16
See Note 1.
MC14521BFR2
SOEIAJ–16
See Note 1.
MC14521BF
SOEIAJ–16
See Note 1.
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| MC14521BCP | Non-inverting High-Speed MOSFET Driver 5-SOT-23 -40 to 125 |
| MC14521BD | 24-Stage Frequency Divider |
| MC14521BDR2 | 24-Stage Frequency Divider |
| MC14521BF | 24-Stage Frequency Divider |
| MC14521BFEL | Automotive Catalog Single-Channel High-Speed Mosfet Driver 5-SOT-23 -40 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC14521BCP | 功能描述:增效器/分頻器 LOG CMOS OSILATR 24STAGE RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
| MC14521BCPG | 功能描述:增效器/分頻器 3-18V Resettable in RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
| MC14521BD | 功能描述:增效器/分頻器 LOG CMOS OSILATR 24STAGE RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
| MC14521BDG | 功能描述:增效器/分頻器 LOG CMOS OSILATR 24STAGE RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
| MC14521BDR2 | 功能描述:增效器/分頻器 LOG CMOS OSILATR 24STAGE RoHS:否 制造商:Texas Instruments 產(chǎn)品:Multiplier 邏輯系列: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-14 |
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