74LVT574PW View Datasheet(PDF) - Philips Electronics
Part Name
Description
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74LVT574PW Datasheet PDF : 12 Pages
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Philips Semiconductors
3.3V Octal D-type flip-flop (3-State)
Product specification
74LVT574
FEATURES
• Inputs and outputs on opposite side of package allow easy
interface to microprocessors
• 3-State outputs for bus interfacing
• 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
• Power-up 3-State
• Power-up reset
• Latch-up protection exceeds 500mA per JEDEC Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
DESCRIPTION
The LVT574 is a high-performance BiCMOS product designed for
VCC operation at 3.3V.
This device is an 8-bit, edge triggered register coupled to eight
3-State output buffers. The two sections of the device are controlled
independently by the clock (CP) and Output Enable (OE) control
gates. The state of each D input (one set-up time before the
Low-to-High clock transition) is transferred to the corresponding
flip-flop’s Q output.
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 clock operation.
When OE is Low, the stored 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
tPLH
Propagation delay
tPHL
CP to Qn
CIN
Input capacitance
COUT
Output capacitance
ICCZ
Total supply current
CONDITIONS
Tamb = 25°C; GND = 0V
CL = 50pF;
VCC = 3.3V
VI = 0V or 3.0V
Outputs disabled;
VI/O = 0V or 3.0V
Outputs disabled;
VCC = 3.6V
TYPICAL
3.6
4.3
4
8
0.13
UNIT
ns
pF
pF
mA
ORDERING INFORMATION
PACKAGES
20-Pin Plastic SOL
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74LVT574 D
74LVT574 DB
74LVT574 PW
NORTH AMERICA
74LVT574 D
74LVT574 DB
74LVT574PW DH
DWG NUMBER
SOT163-1
SOT339-1
SOT360-1
PIN CONFIGURATION
LOGIC SYMBOL
OE 1
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
D6 8
D7 9
GND 10
20 VCC
19 Q0
18 Q1
17 Q2
16 Q3
15 Q4
14 Q5
13 Q6
12 Q7
11 CP
SV00041
23456789
D0 D1 D2 D3 D4 D5 D6 D7
11
CP
1
OE
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
19 18 17 16 15 14 13 12
SV00042
1998 Feb 19
2
853-1746 18988
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