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參數(shù)資料
| 型號： | MC14520B |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | Dual Up Counters(雙BCD計數(shù)器) |
| 中文描述： | 雙柜位（雙BCD碼計數(shù)器） |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 112K |
| 代理商： | MC14520B |
Semiconductor Components Industries, LLC, 2006
January, 2006 Rev. 5
1
Publication Order Number:
MC14518B/D
MC14518B, MC14520B
Dual Up Counters
The MC14518B dual BCD counter and the MC14520B dual binary
counter are constructed with MOS Pchannel and Nchannel
enhancement mode devices in a single monolithic structure. Each
consists of two identical, independent, internally synchronous 4stage
counters. The counter stages are type D flipflops, with interchangeable
Clock and Enable lines for incrementing on either the positivegoing or
negativegoing transition as required when cascading multiple stages.
Each counter can be cleared by applying a high level on the Reset line.
In addition, the MC14518B will count out of all undefined states within
two clock periods. These complementary MOS up counters find
primary use in multistage synchronous or ripple counting applications
requiring low power dissipation and/or high noise immunity.
Features
Diode Protection on All Inputs
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Internally Synchronous for High Internal and External Speeds
Logic EdgeClocked Design — Incremented on Positive Transition
of Clock or Negative Transition on Enable
Capable of Driving Two Lowpower TTL Loads or One Lowpower
Schottky TTL Load Over the Rated Temperature Range
PbFree Packages are Available*
MAXIMUM RATINGS
(Voltages Referenced to V
SS
) (Note 1.)
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 2.)
500
mW
T
A
Operating Temperature Range
55 to +125
°
C
T
stg
Storage Temperature Range
65 to +150
°
C
T
L
Lead Temperature
(8Second Soldering)
260
°
C
Maximum ratings are those values beyond which device damage can occur.
Maximum ratings applied to the device are individual stress limit values (not
normal operating conditions) and are not valid simultaneously. If these limits are
exceeded, device functional operation is not implied, damage may occur and
reliability may be affected.
1. Maximum Ratings are those values beyond which damage to the device
may occur.
2. 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
highimpedance 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
xx
A
WL, L
YY, Y
WW, W
G
= 18 or 20
= Assembly Location
= Wafer Lot
= Year
= Work Week
= PbFree Indicator
MARKING
DIAGRAMS
16
1
PDIP16
P SUFFIX
CASE 648
MC145xxBCP
AWLYYWWG
SOIC16
DW SUFFIX
CASE 751G
1
16
145xxB
AWLYYWWG
SOEIAJ16
F SUFFIX
CASE 966
1
16
MC145xxB
ALYWG
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC14520BAL | 制造商:Motorola Inc 功能描述:Counter, Up, 4 Bit Binary, 16 Pin, Ceramic, DIP |
| MC14520BCP | 功能描述:計數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計數(shù)器類型: 計數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| MC14520BCPG | 功能描述:計數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計數(shù)器類型: 計數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| MC14520BDW | 功能描述:計數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計數(shù)器類型: 計數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
| MC14520BDWG | 功能描述:計數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計數(shù)器類型: 計數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
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