參數(shù)資料
型號(hào)： MC14518-520B
廠商： Motorola, Inc.
元件分類(lèi)： 通用總線功能
英文描述： DUAL UP COUNTERS
中文描述： 雙柜位
文件頁(yè)數(shù)： 1/7頁(yè)
文件大?。?/td> 203K
代理商： MC14518-520B
MOTOROLA CMOS LOGIC DATA
Motorola, Inc. 1995
409
MC14518B MC14520B
The MC14518B dual BCD counter and the MC14520B dual binary counter
are constructed with MOS P–channel and N–channel enhancement mode
devices in a single monolithic structure. Each consists of two identical,
independent, internally synchronous 4–stage counters. The counter stages
are type D flip–flops, with interchangeable Clock and Enable lines for
incrementing on either the positive–going or negative–going 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 multi–stage synchronous or ripple
counting applications requiring low power dissipation and/or high noise
immunity.
Diode Protection on All Inputs
Supply Voltage Range = 3.0 Vdc to 18 Vdc
Internally Synchronous for High Internal and External Speeds
Logic Edge–Clocked Design — Incremented on Positive Transition of
Clock or Negative Transition on Enable
Capable of Driving Two Low–power TTL Loads or One Low–power
MAXIMUM RATINGS*
(Voltages Referenced to VSS)
Symbol
Parameter
Value
Unit
VDD
Vin, Vout
Iin, Iout
DC Supply Voltage
– 0.5 to + 18.0
V
Input or Output Voltage (DC or Transient)
0.5 to VDD + 0.5
±
10
V
Input or Output Current (DC or Transient),
per Pin
mA
PD
Tstg
TL
Power Dissipation, per Package
500
mW
Storage Temperature
– 65 to + 150
C
Lead Temperature (8–Second Soldering)
260
C
* Maximum Ratings are those values beyond which damage to the device may occur.
Temperature Derating:
Plastic “P and D/DW” Packages: – 7.0 mW/ C From 65 C To 125 C
Ceramic “L” Packages: – 12 mW/ C From 100 C To 125 C
TRUTH TABLE
Clock
Enable
Reset
Action
1
0
Increment Counter
0
0
Increment Counter
X
0
No Change
X
0
No Change
0
0
No Change
1
0
No Change
X
X
1
Q0 thru Q3 = 0
X = Don’t Care
SEMICONDUCTOR TECHNICAL DATA
REV 3
1/94
L SUFFIX
CERAMIC
CASE 620
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
TA = – 55
°
to 125
°
C for all packages.
Plastic
Ceramic
SOIC
P SUFFIX
PLASTIC
CASE 648
DW SUFFIX
SOIC
CASE 751G
This device contains protection circuitry to
guard against damage due to high static
voltages or electric fields. However, pre-
cautions must be taken to avoid applications of
any voltage higher than maximum rated volt-
ages to this high–impedance circuit. For proper
operation, Vin and Vout should be constrained
to the range VSS
(Vin or Vout)
Unused inputs must always be tied to an
appropriate logic voltage level (e.g., either VSS
or VDD). Unused outputs must be left open.
VDD.
BLOCK DIAGRAM
VDD = PIN 16
VSS = PIN 8
3
4
5
6
14
13
12
11
C
C
R
R
Q3
Q2
Q1
Q0
Q3
Q2
Q1
Q0
CLOCK
1
2
CLOCK
ENABLE
ENABLE
7
9
10
15
相關(guān)PDF資料
PDF描述
MC14518B DUAL UP COUNTERS
MC14520B DUAL UP COUNTERS
MC14518BFEL Dual Up Counters
MC14518 Dual Up Counters
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參數(shù)描述
MC14518BCP 功能描述:計(jì)數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)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(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
MC14518BCPG 功能描述:計(jì)數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)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(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
MC14518BDW 功能描述:計(jì)數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)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(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
MC14518BDWG 功能描述:計(jì)數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)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(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
MC14518BDWR2 功能描述:計(jì)數(shù)器移位寄存器 3-18V Dual BCD Up RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類(lèi)型: 計(jì)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(lèi)型: 輸入線路數(shù)量:1 輸出類(lèi)型:Open Drain 傳播延遲時(shí)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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