900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Renesas Electronics Components Datasheet

HD74LS247P Datasheet

BCD-to-Seven-Segment Decoder/Driver

No Preview Available !

HD74LS247
BCD-to-Seven-Segment Decoder / Driver
(with three-state outputs)
REJ03D0465–0300
Rev.3.00
Jul.15.2005
The HD74LS247 is electrically and functionally identical to the HD74LS47, respectively, and has the same pin
assignments as its equivalents.
It can be used interchangeably in present or future designs to offer designers a choice between two indicator fonts. The
HD74LS47 composes the 6 and the 9 without tails and the HD74LS247 composes the 6 and the 9 with tails.
Composition of all other characters, including display patterns for BCD inputs above nine, is identical. The
HD74LS247 features active-low outputs designed for driving indicators directly. All of the circuits have full ripple-
blanking input / output controls and a lamp test input.
Segment identification and resultant displays are shown below. Display patterns for BCD input conditions. This circuit
incorporates automatic leading and / or trailing-edge zero-blanking control (RBI and RBO). Lamp test (LT) of this type
may be performed at any time when the BI / RBO node is at a high level.
This type contains an overriding blanking input (BI) which can be used to control the lamp intensity be pulsing or to
inhibit the outputs.
Features
Ordering Information
Part Name
Package Type
Package Code
(Previous Code)
Package
Abbreviation
HD74LS247P
DILP-16 pin
PRDP0016AE-B
P
(DP-16FV)
HD74LS247FPEL SOP-16 pin (JEITA)
PRSP0016DH-B
(FP-16DAV)
FP
PRSP0016DG-A
HD74LS247RPEL SOP-16 pin (JEDEC) (FP-16DNV)
RP
Note: Please consult the sales office for the above package availability.
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
EL (2,500 pcs/reel)
Rev.3.00, Jul.15.2005, page 1 of 7


Renesas Electronics Components Datasheet

HD74LS247P Datasheet

BCD-to-Seven-Segment Decoder/Driver

No Preview Available !

HD74LS247
Pin Arrangement
B1
Inputs
C2
LT 3
BI/RBO 4
RBI 5
D6
Inputs
A7
GND 8
B
f
C
g
LT
a
BI/BRO b
RBI
c
D
d
A
e
16 VCC
15 f
14 g
13 a
12 b Outputs
11 c
10 d
9e
(Top view)
Function Table
Decimal
Inputs
BI/
or
Function LT RBI D
C
B
A RBO a
b
Outputs
c
d
e
f
Note
g
0
H
H
L
L
L
L
H ON ON ON ON ON ON OFF
1
H
X
L
L
L
H
H OFF ON ON OFF OFF OFF OFF
2
H
X
L
L
H
L
H ON ON OFF ON ON OFF ON
3
H
X
L
L
HH
H ON ON ON ON OFF OFF ON
4
H
X
L
H
L
L
H OFF ON ON OFF OFF ON ON
5
H
X
L
H
L
H
H ON OFF ON ON OFF ON ON
6
H
X
L
HH
L
H ON OFF ON ON ON ON ON
7
H
X
L
HHH
H ON ON ON OFF OFF OFF OFF
1
8
H
X
H
L
L
L
H ON ON ON ON ON ON ON
9
H
X
H
L
L
H
H ON ON ON ON OFF ON ON
10
H
X
H
L
H
L
H OFF OFF OFF ON ON OFF ON
11
H
X
H
L
H
H
H OFF OFF ON ON OFF OFF ON
12
H
X
HH
L
L
H OFF ON OFF OFF OFF ON ON
13
H
X
H
H
L
H
H ON OFF OFF ON OFF ON ON
14
H
X
HHH
L
H OFF OFF OFF ON ON ON ON
15
H
X
H
H
H
H
H OFF OFF OFF OFF OFF OFF OFF
BI
X
X
XXXX
L OFF OFF OFF OFF OFF OFF OFF 2
RBI
H
L
L
L
L
L
L OFF OFF OFF OFF OFF OFF OFF 3
LT
L
X
XXXX
H ON ON ON ON ON ON ON 4
H; high level, L; low level, X; irrelevant
Notes: 1. The blanking input (BI) must be open or held at a high logic level when output functions 0 through 15 are
desired. The ripple-blanking input (RBI) must be open or high if blanking of a decimal zero is not desired.
2. When a low logic level is applied directly to the blanking input (BI), all segment outputs are off regardless of
the level of any other input.
3. When ripple-blanking input (RBI) and inputs A, B, C, and D are a low level with the lamp test input high, all
segment outputs go off and the ripple-blanking output (RBO) goes to a low level (response condition).
4. When a blanking input ripple blanking input (BI/RBO) is open or held high and a low is applied to the lamp-
test input, all segment outputs are on.
Rev.3.00, Jul.15.2005, page 2 of 7


Part Number HD74LS247P
Description BCD-to-Seven-Segment Decoder/Driver
Maker Renesas
PDF Download

HD74LS247P Datasheet PDF






Similar Datasheet

1 HD74LS247 8CD-to-Seven-Segment Decoders/Drivers
Hitachi Semiconductor
2 HD74LS247 BCD-to-Seven-Segment Decoder/Driver
Renesas
3 HD74LS247P BCD-to-Seven-Segment Decoder/Driver
Renesas





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy