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HCF4056B 데이터시트 PDF




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부품번호 HCF4056B 기능
기능 LIQUID-CRYSTAL DISPLAY DRIVERS
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HCF4056B 데이터시트, 핀배열, 회로
HCC4054B/55B/56B
HCF4054B/55B/56B
LIQUID-CRYSTAL DISPLAY DRIVERS
4054B 4-SEGMENT DISPLAY DRIVER -
STROBED LATCH FUNCTION
4055B BCD TO 7-SEGMENT
DECODER/DRIVER, WITH ”DIS-
PLAY-FREQUENCY” OUTPUT
4056B BCD TO 7-SEGMENT
DECODER/DRIVER WITH
STROBED LATCH FUNCTION
. QUIESCENT CURRENT SPECIFIED TO 20V
FOR HCC DEVICE
. OPERATION OF LIQUID CRYSTALS WITH
. COS/MOS CIRCUITS PROVIDES ULTRA-
LOW-POWER DISPLAYS
EQUIVALENT AC OUTPUT DRIVE FOR LI-
. QUID-CRYSTAL DISPLAYS-NO EXTERNAL
CAPACITOR REQUIRED
VOLTAGE DOUBLING ACROSS DISPLAY
[(VDD – VEE) = 18V)] RESULTS IN EFFECTIVE
36V (p-p) DRIVE ACROSS SELECTED DIS-
PLAY SEGMENTS
. LOW-OR HIGH-OUTPUT LEVEL DC DRIVE
FOR OTHER TYPES OF DISPLAYS
. ON-CHIP LOGIC-LEVEL CONVERSION FOR
. DIFFERENT INPUT AND OUTPUT-LEVEL
SWINGS
FULL DECODING OF ALL INPUT COMBINA-
TIONS : ”0 – 9, L, H, P, A– ” AND BLANK POSI-
TIONS
. INPUT CURRENT OF 100nA AT 18V AND 25°C
FOR HCC DEVICE
. 100% TESTED FOR QUIESCENT CURRENT
. MEETS ALL REQUIREMENTS OF JEDECTEN-
TATIVE STANDARD N°. 13A, ”STANDARD
SPECIFICATIONS FOR DESCRIPTION OF ”B”
SERIES CMOS DEVICES”
DESCRIPTION
The HCC4054B, HCC4055B and HCC4056B (ex-
tended temperature range) and the HCF4054B,
HCF4055B and HCF4056B (intermediate tempera-
ture range) are monolithic integrated circuits available
in 16-lead dual in-line plastic or ceramic package and
plastic micro package. The HCC/HCF4055B and
HCC/HCF4056B types are single-digit BCD-to-7-seg-
ment decoder/driver circuits that provide level-shifting
functions on the chip. This feature permits the BCD
input-signal swings (VDD to VSS) to be the same as
March 1989
EY F
(Plastic Package) (Ceramic Frit Seal Package)
M1
(Micro Package)
C1
(Plastic Chip Carrier)
ORDER CODES :
HCC40XXBF HCF40XXBM1
HCF40XXBEY HCF40XXBC1
or different from the 7-segment output-signal swings
(VDD to VEE). For example, the BCD input-signal
swings (VDD to VSS) may be as low as 0 to – 3V,
whereas the output-display drive-signal swing (VDD
to VEE) may be from 0 to – 5V. If VDD to VEE exceeds
15V, VDD to VSS should be at least 4V. The 7-seg-
ment outputs are controlled by the DISPLAY-FRE-
QUENCY (DF) input which causes the selected
segment outputs to be low, high, or a square-wave
output (for liquid-crystal displays). When the DF
input is low the output segments will be high when
selected by the BCD inputs. When the DF input is
high, the output segments will be low when selected
by the BCD inputs. When a square-wave is present
at the DF input, the selected segments will have a
square-wave output that is 180° out of phase with
the DF input. Those segments which are not se-
lected will have a square-wave output that is in
phase with the input. DF square-wave repetition
rates for liquid-crystal displays usually range from
30Hz (well above flicker rate) to 200Hz (well below
the upper limit of the liquid-crystal frequency re-
sponse). The HCC/HCF4055B provides a level-
shifted high-amplitude DF output which is required
for driving the common electrode in liquid-crystal
displays. The HCC/HCF4056B provides a strobed-
latch function at the BCD inputs. Decoding of all
input combinations on the HCC/HCF4055B and
HCC/HCF4056B provides displays of 0 to 9 as well
1/15




HCF4056B pdf, 반도체, 판매, 대치품
HCC/HCF4054B/55B/56B
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V DD* Supply Voltage : HC C Types
H C F Types
– 0.5 to + 20
– 0.5 to + 18
V
V
Vi Input Voltage
II DC Input Current (any one input)
– 0.5 to VDD + 0.5
± 10
V
mA
Pt o t Total Power Dissipation (per package)
Dissipation per Output Transistor
for To p = Full Package-temperature Range
T o p Operating Temperature : HCC Types
H CF Types
200
100
– 55 to + 125
– 40 to + 85
mW
mW
°C
°C
Ts tg Storage Temperature
– 65 to + 150
°C
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating conditions for external periods may affect device reliability.
* All voltage values are referred to VSS pin voltage.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VDD Supply Voltage : H CC Types
H C F Types
V I Input Voltage
T o p Operating Temperature : HCC Types
HC F Types
V al ue
3 to 18
3 to 15
0 to VDD
– 55 to 125
– 40 to 85
Unit
V
V
V
°C
°C
TRUTH TABLE
4055 B and 4056 B
Input Code
Output State
Display
23 22 21 20 a b c d e f g Character
00001111110
00010110000
00101101101
00111111001
01000110011
01011011011
01101011111
01111110000
10001111111
10011111011
10100001110
10110110111
11001100111
11011110111
11100000001
11110000000
0
1
2
3
4
5
6
7
8
9
L
H
P
A
BLANK
Data Setup Time and Strobe Pulse Duration.
4/15

4페이지










HCF4056B 전자부품, 판매, 대치품
Figure 3 : Typical Output High (source) Current
Characteristics.
HCC/HCF4054B/55B/56B
Figure 4 : Minimum Output (source) Current
Characteristics.
Figure 5 : Typical Propagation Delay Time vs.
Load Capacitance (for 4054B).
Figure 6 : Typical Propagation Delay Time vs. Load
Capacitance (for 4055B and 4056B).
Figure 7 : Typical Transition Time vs. Load Capa-
citance.
Figure 8 : Typical Dynamic Power Dissipation vs.
Frequency.
7/15

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HCF4056B

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