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74LVT573 Datasheet(PDF) 2 Page - NXP Semiconductors

No. de pieza 74LVT573
Descripción Electrónicos  3.3V Octal D-type transparent latch 3-State
Download  12 Pages
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Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVT573 Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVT573
3.3V Octal D-type transparent latch
(3-State)
2
1998 Feb 19
853–1750 18988
FEATURES
Inputs and outputs on opposite side of package allow easy
interface to microprocessors
3-State output buffers
Common output enable
TTL input and output switching levels
Input and output interface capability to systems at 5V supply
Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
Live insertion/extraction permitted
No bus current loading when output is tied to 5V bus
Latch-up protection exceeds 500mA per JEDEC Std 17
Power-up 3-State
Power-up reset
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
DESCRIPTION
The LVT573 is a high-performance BiCMOS product designed for
VCC operation at 3.3V. This device is an octal transparent latch
coupled to eight 3-State output buffers. The two sections of the
device are controlled independently by Enable (E) and Output
Enable (OE) control gates. The 74LVT573 has a broadside pinout
configuration to facilitate PC board layout and allow easy interface
with microprocessors.
The data on the D inputs are transferred to the latch outputs when
the Latch Enable (E) input is High. The latch remains transparent to
the data inputs while E is High, and stores the data that is present
one setup time before the High-to-Low enable transition.
The 3-State output buffers are designed to drive heavily loaded
3-State buses, MOS memories, or MOS microprocessors. The
active-Low Output Enable (OE) controls all eight 3-State buffers
independent of the latch operation.
When OE is Low, the latched or transparent data appears at the
outputs. When OE is High, the outputs are in the High-impedance
“OFF” state, which means they will neither drive nor load the bus.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
Dn to Qn
CL = 50pF; VCC = 3.3V
2.5
2.7
ns
CIN
Input capacitance
VI = 0V or 3.0V
4
pF
COUT
Output capacitance
Outputs disabled; VO = 0V or 3.0V
8
pF
ICCZ
Total supply current
Outputs disabled; VCC = 3.6V
.13
mA
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
20-Pin Plastic SOL
–40
°C to +85°C
74LVT573 D
74LVT573 D
SOT163-1
20-Pin Plastic SSOP Type II
–40
°C to +85°C
74LVT573 DB
74LVT573 DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40
°C to +85°C
74LVT573 PW
74LVT573PW DH
SOT360-1
PIN CONFIGURATION
10
9
8
7
6
5
4
3
2
120
19
18
17
16
15
14
13
12
11
VCC
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
E
OE
D0
D1
D2
D3
D4
D5
D6
D7
GND
SV00031
PIN DESCRIPTION
PIN NUMBER
SYMBOL
FUNCTION
1
OE
Output enable input
(active-Low)
2, 3, 4, 5, 6, 7, 8, 9
D0-D7
Data inputs
19, 18, 17, 16, 15,
14, 13, 12
Q0-Q7
Data outputs
11
E
Enable input
(active-High)
10
GND
Ground (0V)
20
VCC
Positive supply voltage


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