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PDF 74LVC245A Data sheet ( Hoja de datos )
| Número de pieza | 74LVC245A | |
| Descripción | Octal bus transceiver | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
Rev. 8 — 28 June 2013
Product data sheet
1. General description
The 74LVC245A; 74LVCH245A are 8-bit transceivers featuring non-inverting 3-state bus
compatible outputs in both send and receive directions. The device features an output
enable (OE) input for easy cascading and a send/receive (DIR) input for direction control.
OE controls the outputs so that the buses are effectively isolated.
Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be
applied to the outputs. These features allow the use of these devices in mixed
3.3 V and 5 V applications.
The 74LVCH245A bus hold on data inputs eliminates the need for external pull-up
resistors to hold unused inputs.
2. Features and benefits
5 V tolerant inputs/outputs for interfacing with 5 V logic
Wide supply voltage range from 1.2 V to 3.6 V
CMOS low-power consumption
Direct interface with TTL levels
Inputs accept voltages up to 5.5 V
High-impedance when VCC = 0 V
Bus hold on all data inputs (74LVCH245A only)
Complies with JEDEC standard:
JESD8-7A (1.65 V to 1.95 V)
JESD8-5A (2.3 V to 2.7 V)
JESD8-C/JESD36 (2.7 V to 3.6 V)
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115B exceeds 200 V
CDM JESD22-C101E exceeds 1000 V
Specified from 40 C to +85 C and 40 C to +125 C
1 page  
NXP Semiconductors
74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
8. Recommended operating conditions
Table 5.
Symbol
VCC
VI
VO
Tamb
t/V
Recommended operating conditions
Parameter
Conditions
supply voltage
functional
input voltage
output voltage
output HIGH or LOW
output 3-state
ambient temperature
in free air
input transition rise and fall rate
VCC = 1.2 V to 2.7 V
VCC = 2.7 V to 3.6 V
9. Static characteristics
Min Typ
1.65 -
1.2 -
0-
0-
0-
40 -
0-
0-
Max
3.6
3.6
5.5
VCC
5.5
+125
20
10
Unit
V
V
V
V
V
C
ns/V
ns/V
Table 6. Static characteristics
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions
40 C to +85 C
40 C to +125 C Unit
Min Typ[1] Max Min Max
VIH HIGH-level VCC = 1.2 V
input voltage VCC = 1.65 V to 1.95 V
1.08
0.65 VCC
-
-
- 1.08 - V
- 0.65 VCC - V
VCC = 2.3 V to 2.7 V
1.7 -
-
1.7
-V
VCC = 2.7 V to 3.6 V
2.0 -
-
2.0
-V
VIL LOW-level VCC = 1.2 V
input voltage VCC = 1.65 V to 1.95 V
- - 0.12 - 0.12 V
- - 0.35 VCC - 0.35 VCC V
VCC = 2.3 V to 2.7 V
- - 0.7 - 0.7 V
VCC = 2.7 V to 3.6 V
- - 0.8 - 0.8 V
VOH HIGH-level VI = VIH or VIL
output
voltage
IO = 100 A;
VCC = 1.65 V to 3.6 V
VCC 0.2 -
- VCC 0.3 - V
IO = 4 mA; VCC = 1.65 V
1.2 -
-
1.05
-V
IO = 8 mA; VCC = 2.3 V
1.8 -
-
1.65
-V
IO = 12 mA; VCC = 2.7 V
2.2 -
-
2.05
-V
IO = 18 mA; VCC = 3.0 V
2.4 -
-
2.25
-V
IO = 24 mA; VCC = 3.0 V
2.2 -
-
2.0
-V
VOL LOW-level VI = VIH or VIL
output
voltage
IO = 100 A;
VCC = 1.65 V to 3.6 V
- - 0.2 - 0.3 V
IO = 4 mA; VCC = 1.65 V
- - 0.45 - 0.65 V
IO = 8 mA; VCC = 2.3 V
- - 0.6 - 0.8 V
IO = 12 mA; VCC = 2.7 V
- - 0.4 - 0.6 V
IO = 24 mA; VCC = 3.0 V
- - 0.55
-
0.8 V
II input leakage VI = 5.5 V or GND;
current
VCC = 3.6 V
[2] - 0.1 5
- 20 A
74LVC_LVCH245A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 28 June 2013
© NXP B.V. 2013. All rights reserved.
5 of 18
5 Page 
NXP Semiconductors
74LVC245A; 74LVCH245A
Octal bus transceiver; 3-state
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
D
y
Z
20
c
11
EA
X
HE v M A
pin 1 index
1
e
10
wM
bp
A2
A1
Q
(A3)
A
Lp
L
detail X
θ
0 2.5 5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c D(1) E(1) e
HE
L
Lp
Q
v
w
y Z (1) θ
mm
2
0.21
0.05
1.80
1.65
0.25
0.38
0.25
0.20
0.09
7.4
7.0
5.4
5.2
0.65
7.9
7.6
1.25
1.03
0.63
0.9
0.7
0.2 0.13
0.1
0.9
0.5
8o
0o
Note
1. Plastic or metal protrusions of 0.2 mm maximum per side are not included.
OUTLINE
VERSION
SOT339-1
IEC
REFERENCES
JEDEC
JEITA
MO-150
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-19
Fig 9. Package outline SOT339-1 (SSOP20)
74LVC_LVCH245A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 28 June 2013
© NXP B.V. 2013. All rights reserved.
11 of 18
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| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet 74LVC245A.PDF ] | |
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