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HD74HC245 PDF даташит

Спецификация HD74HC245 изготовлена ​​​​«Renesas» и имеет функцию, называемую «Octal Bus Transceivers».

Детали детали

Номер произв HD74HC245
Описание Octal Bus Transceivers
Производители Renesas
логотип Renesas логотип 

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HD74HC245 Даташит, Описание, Даташиты
HD74HC245
Octal Bus Transceivers (with 3-state outputs)
REJ03D0598–0200
(Previous ADE-205-475)
Rev.2.00
Jan 31, 2006
Description
Each device has an active low enable input G and a direction control input, DIR. When DIR is high, data flows from
the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. The HD74HC245
transfers true data from one bus to the other. This device does not have schmitt trigger inputs.
Features
High Speed Operation: tpd = 8 ns typ (CL = 50 pF)
High Output Current: Fanout of 15 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Ordering Information
Part Name
Package Type
Package Code
(Previous Code)
Package
Abbreviation
HD74HC245P
DILP-20 pin
PRDP0020AC-B
(DP-20NEV)
P
HD74HC245FPEL SOP-20 pin (JEITA)
PRSP0020DD-B
(FP-20DAV)
FP
HD74HC245RPEL SOP-20 pin (JEDEC)
PRSP0020DC-A RP
(FP-20DBV)
HD74HC245TELL TSSOP-20 pin
PTSP0020JB-A
(TTP-20DAV)
T
Note: Please consult the sales office for the above package availability.
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
EL (1,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
Enable G
L
L
H
H : high level
L : low level
X : irrelevant
Direction Control DIR
L
H
X
Operation
B data to A bus
A data to B bus
Isolation
Rev.2.00 Jan 31, 2006 page 1 of 7









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HD74HC245 Даташит, Описание, Даташиты
HD74HC245
Pin Arrangement
DIR 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
(Top view)
20 VCC
19
Enable
G
18 B1
17 B2
16 B3
15 B4
14 B5
13 B6
12 B7
11 B8
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage range
VCC
–0.5 to 7.0
V
Input / Output voltage
VIN, VOUT
–0.5 to VCC +0.5
V
Input / Output diode current
IIK, IOK
±20 mA
Output current
IO ±35 mA
VCC, GND current
ICC or IGND
±75 mA
Power dissipation
Storage temperature
PT 500 mW
Tstg
–65 to +150
°C
Note: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two of
which may be realized at the same time.
Recommended Operating Conditions
Item
Symbol
Ratings
Supply voltage
VCC 2 to 6
Input / Output voltage
VIN, VOUT
0 to VCC
Operating temperature
Input rise / fall time*1
Ta –40 to 85
tr, tf 0 to 1000
0 to 500
0 to 400
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Unit
V
V
°C
ns
Conditions
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
Rev.2.00 Jan 31, 2006 page 2 of 7









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HD74HC245 Даташит, Описание, Даташиты
HD74HC245
Electrical Characteristics
Item
Input voltage
Output voltage
Off-state output
current
Input current
Quiescent supply
current
Symbol
VIH
VIL
VOH
VOL
IOZ
Iin
ICC
VCC (V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
6.0
6.0
6.0
Ta = 25°C
Min Typ Max
1.5 — —
3.15 — —
4.2 — —
— — 0.5
— — 1.35
— — 1.8
1.9 2.0 —
4.4 4.5 —
5.9 6.0 —
4.18 — —
5.68 — —
— 0.0 0.1
— 0.0 0.1
— 0.0 0.1
— — 0.26
— — 0.26
— — ±0.5
— — ±0.1
— — 4.0
Ta = –40 to+85°C
Unit
Min Max
Test Conditions
1.5 — V
3.15 —
4.2 —
— 0.5 V
— 1.35
— 1.8
1.9 — V Vin = VIH or VIL IOH = –20 µA
4.4 —
5.9 —
4.13 —
IOH = –6 mA
5.63
— IOH = –7.8 mA
0.1 V Vin = VIH or VIL IOL = 20 µA
— 0.1
— 0.1
— 0.33
IOL = 6 mA
— 0.33
IOL = 7.8 mA
±5.0 µA Vin = VIH or VIL,
Vout = VCC or GND
±1.0 µA Vin = VCC or GND
— 40 µA Vin = VCC or GND, Iout = 0 µA
Rev.2.00 Jan 31, 2006 page 3 of 7










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