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74HC373 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 74HC373
기능 Octal D-type transparent latch
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74HC373 데이터시트, 핀배열, 회로
74HC373; 74HCT373
Octal D-type transparent latch; 3-state
Rev. 6 — 26 February 2016
Product data sheet
1. General description
The 74HC373; 74HCT373 is an octal D-type transparent latch with 3-state outputs. The
device features latch enable (LE) and output enable (OE) inputs. When LE is HIGH, data
at the inputs enter the latches. In this condition the latches are transparent, a latch output
will change each time its corresponding D-input changes. When LE is LOW the latches
store the information that was present at the inputs a set-up time preceding the
HIGH-to-LOW transition of LE. A HIGH on OE causes the outputs to assume a
high-impedance OFF-state. Operation of the OE input does not affect the state of the
latches. Inputs include clamp diodes. This enables the use of current limiting resistors to
interface inputs to voltages in excess of VCC.
2. Features and benefits
Input levels:
For 74HC373: CMOS level
For 74HCT373: TTL level
3-state non-inverting outputs for bus oriented applications
Common 3-state output enable input
Functionally identical to the 74HC563; 74HCT563 and 74HC573; 74HCT573
Complies with JEDEC standard no. 7 A
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 C to +85 C and from 40 C to +125 C
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
74HC373D 40 C to +125 C SO20
74HCT373D
74HC373DB 40 C to +125 C SSOP20
74HCT373DB
Description
plastic small outline package; 20 leads;
body width 7.5 mm
plastic shrink small outline package; 20 leads;
body width 5.3 mm
Version
SOT163-1
SOT339-1




74HC373 pdf, 반도체, 판매, 대치품
NXP Semiconductors
74HC373; 74HCT373
Octal D-type transparent latch; 3-state
5. Pinning information
5.1 Pinning
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4 
4 
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4 
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 9&&
 4
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 4
 4
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 4
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DDH
Fig 6. Pin configuration SO20, SSOP20 and
TSSOP20
WHUPLQDO
LQGH[DUHD
+&
+&7
4 
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4 
4 
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4 
*1' 
 4
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 '
 4
 4
 '
 '
 4
DDH
7UDQVSDUHQWWRSYLHZ
(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 7. Pin configuration DHVQFN20
5.2 Pin description
Table 2. Pin description
Symbol
OE
Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7
D0, D1, D2, D3, D4, D5, D6, D7
GND
LE
VCC
Pin
1
2, 5, 6, 9, 12, 15, 16, 19
3, 4, 7, 8, 13, 14, 17, 18
10
11
20
Description
3-state output enable input (active LOW)
3-state latch output
data input
ground (0 V)
latch enable input (active HIGH)
supply voltage
74HC_HCT373
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 26 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
4 of 25

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74HC373 전자부품, 판매, 대치품
NXP Semiconductors
74HC373; 74HCT373
Octal D-type transparent latch; 3-state
Table 6. Static characteristics 74HC373 …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min Typ Max Unit
Tamb = 40 C to +85 C
VIH HIGH-level input voltage
VCC = 2.0 V
1.5 -
-V
VCC = 4.5 V
3.15 -
-V
VCC = 6.0 V
4.2 -
-V
VIL LOW-level input voltage VCC = 2.0 V
- - 0.5 V
VCC = 4.5 V
- - 1.35 V
VCC = 6.0 V
- - 1.8 V
VOH
HIGH-level output voltage
VI = VIH or VIL
IO = 20 A; VCC = 2.0 V
IO = 20 A; VCC = 4.5 V
IO = 20 A; VCC = 6.0 V
IO = 6.0 mA; VCC = 4.5 V
IO = 7.8 mA; VCC = 6.0 V
1.9 -
4.4 -
5.9 -
3.84 -
5.34 -
-V
-V
-V
-V
-V
VOL LOW-level output voltage VI = VIH or VIL
IO = 20 A; VCC = 2.0 V
IO = 20 A; VCC = 4.5 V
IO = 20 A; VCC = 6.0 V
- - 0.1 V
- - 0.1 V
- - 0.1 V
IO = 6.0 mA; VCC = 4.5 V
- - 0.33 V
II input leakage current
IOZ OFF-state output current
ICC supply current
Tamb = 40 C to +125 C
IO = 7.8 mA; VCC = 6.0 V
VI = VCC or GND; VCC = 6.0 V
VI = VIH or VIL; VCC = 6.0 V;
VO = VCC or GND
VCC = 6.0 V; IO = 0 A;
VI = VCC or GND
- - 0.33 V
- - 1.0 A
- - 5.0 A
- - 80 A
VIH HIGH-level input voltage VCC = 2.0 V
1.5 -
-V
VCC = 4.5 V
3.15 -
-V
VCC = 6.0 V
4.2 -
-V
VIL LOW-level input voltage VCC = 2.0 V
- - 0.5 V
VCC = 4.5 V
- - 1.35 V
VCC = 6.0 V
- - 1.8 V
VOH
HIGH-level output voltage
VI = VIH or VIL
IO = 20 A; VCC = 2.0 V
IO = 20 A; VCC = 4.5 V
IO = 20 A; VCC = 6.0 V
IO = 6.0 mA; VCC = 4.5 V
IO = 7.8 mA; VCC = 6.0 V
1.9 -
4.4 -
5.9 -
3.7 -
5.2 -
-V
-V
-V
-V
-V
74HC_HCT373
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 26 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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