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| 型號(hào)： | MC14XXXBDW |
| 廠(chǎng)商： | Motorola, Inc. |
| 英文描述： | BCD-TO-SEVEN SEGMENT LATCH/DECODER/DRIVER |
| 中文描述： | BCD碼到七段鎖存器/解碼器/驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大小： | 135K |
| 代理商： | MC14XXXBDW |
MOTOROLA CMOS LOGIC DATA
Motorola, Inc. 1995
361
MC14511B
The MC14511B BCD–to–seven segment latch/decoder/driver is
constructed with complementary MOS (CMOS) enhancement mode devices
and NPN bipolar output drivers in a single monolithic structure. The circuit
provides the functions of a 4–bit storage latch, an 8421 BCD–to–seven
segment decoder, and an output drive capability. Lamp test (LT), blanking
(BI), and latch enable (LE) inputs are used to test the display, to turn–off or
pulse modulate the brightness of the display, and to store a BCD code,
respectively. It can be used with seven–segment light–emitting diodes
(LED), incandescent, fluorescent, gas discharge, or liquid crystal readouts
either directly or indirectly.
Applications include instrument (e.g., counter, DVM, etc.) display driver,
computer/calculator display driver, cockpit display driver, and various clock,
watch, and timer uses.
Low Logic Circuit Power Dissipation
High–Current Sourcing Outputs (Up to 25 mA)
Latch Storage of Code
Blanking Input
Lamp Test Provision
Readout Blanking on all Illegal Input Combinations
Lamp Intensity Modulation Capability
Time Share (Multiplexing) Facility
Supply Voltage Range = 3.0 V to 18 V
Capable of Driving Two Low–power TTL Loads, One Low–power
Schottky TTL Load or Two HTL Loads Over the Rated Temperature
Range
Chip Complexity: 216 FETs or 54 Equivalent Gates
MAXIMUM RATINGS*
(Voltages Referenced to VSS)
Rating
Symbol
Value
Unit
DC Supply Voltage
VDD
Vin
I
– 0.5 to + 18
V
Input Voltage, All Inputs
– 0.5 to VDD +0.5
10
V
DC Current Drain per Input Pin
mA
Operating Temperature Range
TA
PD
Tstg
IOHmax
– 55 to + 125
C
Power Dissipation per Package
500
mW
Storage Temperature Range
– 65 to + 150
C
Maximum Output Drive Current
(Source) per Output
25
mA
Maximum Continuous Output Power
(Source) per Output
POHmax
50
mW
POHmax = IOH (VDD – VOH)
* 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
SEMICONDUCTOR TECHNICAL DATA
REV 3
1/94
L SUFFIX
CERAMIC
CASE 620
ORDERING INFORMATION
MC14XXXBCP
MC14XXXBCL
MC14XXXBDW
MC14XXXBD
TA = – 55
°
to 125
°
C for all packages.
Plastic
Ceramic
SOIC
SOIC
P SUFFIX
PLASTIC
CASE 648
D SUFFIX
SOIC
CASE 751B
PIN ASSIGNMENT
DW SUFFIX
SOIC
CASE 751G
13
14
15
16
9
10
11
12
5
4
3
2
1
8
7
6
b
a
g
f
VDD
e
d
c
BI
LT
C
B
VSS
A
D
LE
0
1
2
3
4
5
6
7
8
9
DISPLAY
a
b
c
d
e
f
g
Inputs
Outputs
LE BI LT
D
C
B
A
a
b
c
d
e
f
g
Display
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
X
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
X
X
X
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
X
X
X
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
X
X
X
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
X
1
0
1
0
1
1
0
1
0
1
1
1
0
0
0
0
0
0
1
0
1
1
1
1
1
0
0
1
1
1
0
0
0
0
0
0
1
0
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
1
0
1
0
1
1
0
1
1
0
1
0
0
0
0
0
0
0
*
1
0
1
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
1
0
1
0
0
0
1
1
1
0
1
1
0
0
0
0
0
0
1
0
0
0
1
1
1
1
1
0
1
1
0
0
0
0
0
0
8
Blank
0
1
2
3
4
5
6
7
8
Bl9
Blank
*
X = Don’t Care
* Depends upon the BCD code previously applied when LE = 0
TRUTH TABLE
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