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74HC245 PDF даташит

Спецификация 74HC245 изготовлена ​​​​«NXP Semiconductors» и имеет функцию, называемую «Octal bus transceiver».

Детали детали

Номер произв 74HC245
Описание Octal bus transceiver
Производители NXP Semiconductors
логотип NXP Semiconductors логотип 

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74HC245 Даташит, Описание, Даташиты
74HC245; 74HCT245
Octal bus transceiver; 3-state
Rev. 4 — 26 February 2016
Product data sheet
1. General description
The 74HC245; 74HCT245 is an 8-bit transceiver with 3-state outputs. The device features
an output enable (OE) and send/receive (DIR) for direction control. A HIGH on OE causes
the outputs to assume a high-impedance OFF-state. 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
Complies with JEDEC standard JESD7A
Input levels:
For 74HC245: CMOS level
For 74HCT245: TTL level
Octal bidirectional bus interface
Non-inverting 3-state outputs
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
74HC245D
40 C to +125 C
74HCT245D
74HC245DB 40 C to +125 C
74HCT245DB
74HC245PW 40 C to +125 C
74HCT245PW
74HC245BQ 40 C to +125 C
74HCT245BQ
Name
SO20
SSOP20
TSSOP20
DHVQFN20
Description
plastic small outline package; 20 leads;
body width 7.5 mm
Version
SOT163-1
plastic shrink small outline package; 20 leads; body SOT339-1
width 5.3 mm
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
plastic dual-in-line compatible thermal enhanced very SOT764-1
thin quad flat package; no leads; 20 terminals; body
2.5 4.5 0.85 mm









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74HC245 Даташит, Описание, Даташиты
NXP Semiconductors
4. Functional diagram
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Fig 1. Logic symbol
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PQD
74HC245; 74HCT245
Octal bus transceiver; 3-state
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PQD
Fig 2. IEC logic symbol








74HC_HCT245
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 26 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
2 of 18









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74HC245 Даташит, Описание, Даташиты
NXP Semiconductors
74HC245; 74HCT245
Octal bus transceiver; 3-state
5. Pinning information
5.1 Pinning
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DDF
Fig 3. Pin configuration SO20 and (T)SSOP20
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DDF
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 4. Pin configuration DHVQFN20
5.2 Pin description
Table 2. Pin description
Symbol
DIR
A0, A1, A2, A3, A4, A5, A6, A7
GND
B7, B6, B5, B4, B3, B2, B1, B0
OE
VCC
Pin
1
2, 3, 4, 5, 6, 7, 8, 9
10
11, 12, 13, 14, 15, 16, 17, 18
19
20
Description
direction control
data input/output
ground (0 V)
data input/output
output enable input (active LOW)
supply voltage
74HC_HCT245
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 26 February 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
3 of 18










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