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SN54LS148 Datasheet, PDF (1/20 Pages) Texas Instruments – 10 LINE TO 4 LINE AND 8 LINE TO 3 LINE PRIORITY ENCODERS | |||
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SN54147, SN54148, SN54LS147, SN54LS148
SN74147, SN74148 (TIM9907), SN74LS147, SN74LS148
10ÄLINE TO 4ÄLINE AND 8ÄLINE TO 3ÄLINE PRIORITY ENCODERS
SDLS053B â OCTOBER 1976 â REVISED MAY 2004
â147, âLS147
D Encode 10-Line Decimal to 4-Line BCD
D Applications Include:
â Keyboard Encoding
â Range Selection
SN54147, SN54LS147 . . . J OR W PACKAGE
SN74147, SN74LS147 . . . D OR N PACKAGE
(TOP VIEW)
â148, âLS148
D Encode 8 Data Lines to 3-Line Binary
(Octal)
D Applications Include:
â n-Bit Encoding
â Code Converters and Generators
SN54148, SN54LS148 . . . J OR W PACKAGE
SN74148, SN74LS148 . . . D, N, OR NS PACKAGE
(TOP VIEW)
41
52
63
74
85
C6
B7
GND 8
16 VCC
15 NC
14 D
13 3
12 2
11 1
10 9
9A
41
52
63
74
EI 5
A2 6
A1 7
GND 8
16 VCC
15 E0
14 GS
13 3
12 2
11 1
10 0
9 A0
SN54LS147 . . . FK PACKAGE
(TOP VIEW)
SN54LS148 . . . FK PACKAGE
(TOP VIEW)
3 2 1 20 19
64
18 D
75
17 3
NC 6
16 NC
87
15 2
C8
14 1
9 10 11 12 13
6
3 2 1 20 19
4
18
GS
75
17 3
NC 6
16 NC
EI 7
15 2
A2 8
14 1
9 10 11 12 13
NC â No internal connection
TYPE
â147
â148
âLS147
âLS148
TYPICAL
DATA
DELAY
10 ns
10 ns
15 ns
15 ns
TYPICAL
POWER
DISSIPATION
225 mW
190 mW
60 mW
60 mW
NOTE: The SN54147, SN54LS147, SN54148, SN74147, SN74LS147, and SN74148 are obsolete and are no longer supplied.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
⢠POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2004, Texas Instruments Incorporated
On products compliant to MILÄPRFÄ38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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