TC74HC148AP Toshiba, TC74HC148AP Datasheet

TC74HC148AP

Manufacturer Part Number
TC74HC148AP
Description
Manufacturer
Toshiba
Datasheet

Specifications of TC74HC148AP

Lead Free Status / RoHS Status
Not Compliant
8-to-3 Line Priority Encoder
ENCODER fabricated with silicon gate C2MOS technology.
LSTTL while maintaining the CMOS low power dissipation.
low logic level.
eight input signals and outputs the corresponding signal position
in binaly code.
cascade without using external circuits.
discharge or transient excess voltage.
Features
Pin Assignment
The TC74HC148A is a high speed CMOS 8-to-3 LINE
It achieves the high speed operation similar to equivalent
All data inputs and outputs of these encoders are active at the
The encoder detects a low level of the highest order among
Enable Input EI and Enable Output EO are used to easily
All inputs are equipped with protection circuits against static
High speed: t
Low power dissipation: I
High noise immunity: V
Output drive capability: 10 LSTTL loads
Symmetrical output impedance: |I
Balanced propagation delays: t
Wide operating voltage range: V
Pin and function compatible with 74LS148
TC74HC148AP,TC74HC148AF
pd
= 15 ns (typ.) at V
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
NIH
CC
= 4 μA (max) at Ta = 25°C
= V
pLH
NIL
CC
CC
OH
∼ − t
(opr) = 2 to 6 V
= 28% V
= 5 V
| = I
pHL
OL
CC
= 4 mA (min)
(min)
1
Weight
DIP16-P-300-2.54A
SOP16-P-300-1.27A
TC74HC148AP
TC74HC148AF
TC74HC148AP/AF
: 1.00 g (typ.)
: 0.18 g (typ.)
2007-10-01

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TC74HC148AP Summary of contents

Page 1

... Symmetrical output impedance: |I • Balanced propagation delays: t • Wide operating voltage range: V • Pin and function compatible with 74LS148 Pin Assignment = 28% V (min) NIL (min ∼ − t pLH pHL (opr TC74HC148AP/AF TC74HC148AP TC74HC148AF Weight DIP16-P-300-2.54A : 1.00 g (typ.) SOP16-P-300-1.27A : 0.18 g (typ.) 2007-10-01 ...

Page 2

... IEC Logic Symbol Truth Table Inputs Don’t care TC74HC148AP/AF Outputs 2007-10-01 ...

Page 3

... Note 2: 500 mW in the range −40 to 65°C. From 85°C a derating factor of −10 mW/°C shall be applied until 300 mW. Symbol Rating −0 −0 0 −0 0.5 V OUT CC ± ± ±25 I OUT ± 500 (DIP) (Note 2)/180 (SOP) D −65 to 150 T stg 3 TC74HC148AP/AF Unit °C 2007-10-01 ...

Page 4

... I 6 μ GND 6 GND 6 TC74HC148AP/AF Unit ° − 25°C 85°C Min Typ. Max Min Max ⎯ ⎯ ⎯ 1.50 1.50 ⎯ ⎯ ⎯ 3.15 3.15 ⎯ ⎯ ⎯ 4.20 4.20 ⎯ ⎯ ⎯ 0.50 0.50 ⎯ ...

Page 5

... TC74HC148AP/ ns Min Typ. Max ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ − 25°C 85°C Typ. Max ...

Page 6

... Typical Application TC74HC148AP/AF 6 2007-10-01 ...

Page 7

... Package Dimensions Weight: 1.00 g (typ.) TC74HC148AP/AF 7 2007-10-01 ...

Page 8

... Package Dimensions Weight: 0.18 g (typ.) TC74HC148AP/AF 8 2007-10-01 ...

Page 9

... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. TC74HC148AP/AF 9 2007-10-01 ...

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