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74LV244 View Datasheet(PDF) - Philips Electronics

Part Name
Description
Manufacturer
74LV244
Philips
Philips Electronics Philips
74LV244 Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Philips Semiconductors
Octal buffer/line driver (3-State)
Product specification
74LV244
FEATURES
Wide operating voltage: 1.0 to 5.5 V
Optimized for low voltage applications: 1.0 to 3.6 V
Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
Typical VOLP (output ground bounce) < 0.8 V at VCC = 3.3 V,
Tamb = 25°C
Typical VOHV (output VOH undershoot) > 2 V at VCC = 3.3 V,
Tamb = 25°C
Output capability: bus driver
ICC category: MSI
DESCRIPTION
The 74LV244 is a low-voltage Si-gate CMOS device and is pin and
function compatible with 74HC/HCT244.
The 74LV244 is an octal non-inverting buffer/line driver with 3-State
outputs. The 3-State outputs are controlled by the output enable
inputs 1OE and 2OE. A HIGH on nOE causes the outputs to
assume a high impedance OFF-state. The 74LV244 is identical to
the 74LV240 but has non-inverting outputs.
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25°C; tr = tf 2.5 ns
SYMBOL
PARAMETER
CONDITIONS
tPHL/tPLH
Propagation delay
1An to 1Yn;
2An to 2Yn
CL = 15 pF;
VCC = 3.3 V
CI
Input capacitance
CPD
Power dissipation capacitance per buffer
VCC = 3.3 V
VI = GND to VCC1
NOTE:
1. CPD is used to determine the dynamic power dissipation (PD in µW)
PD = CPD VCC2 fi (CL VCC2 fo) where:
fi = input frequency in MHz; CL = output load capacitance in pF;
fo = output frequency in MHz; VCC = supply voltage in V;
ȍ (CL VCC2 fo) = sum of the outputs.
TYPICAL
8.0
3.5
35
UNIT
ns
pF
pF
ORDERING INFORMATION
PACKAGES
20-Pin Plastic DIL
20-Pin Plastic SO
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
–40°C to +125°C
74LV244 N
–40°C to +125°C
74LV244 D
–40°C to +125°C
74LV244 DB
–40°C to +125°C
74LV244 PW
NORTH AMERICA
74LV244 N
74LV244 D
74LV244 DB
74LV244PW DH
PKG. DWG. #
SOT146-1
SOT163-1
SOT339-1
SOT360-1
PIN CONFIGURATION
LOGIC SYMBOL
1OE 1
1A0 2
2Y0 3
1A1 4
2Y1 5
1A2 6
2Y2 7
1A3 8
2Y3 9
GND 10
20 VCC
19 2OE
18 1Y0
17 2A0
16 1Y1
15 2A1
14 1Y2
13 2A2
12 1Y3
11 2A3
SV00620
2 1A0
17 2A0
4 1A1
15 2A1
6 1A2
13 2A2
8 1A3
11 2A3
1 1OE
19 2OE
1Y0 18
2Y0 3
1Y1 16
2Y1 5
1Y2 14
2Y2 7
1Y3 12
2Y3 9
SV00621
1998 May 20
2
853–1924 19420
 

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