Philips Semiconductors Product data
74F241Octal buffer
2
2004 Feb 25
FEATURES
• Octal bus interface
• 3-state buffer outputs sink 64 mA
• 15 mA source current
DESCRIPTION
The 74F241 is an octal buffer that is ideal for driving bus lines of
buffer memory address registers. The outputs are all capable of
sinking 64 mA and sourcing up to 15 mA. The device features two
output enables, each controlling four of the 3-state outputs.
TYPE
TYPICAL PROPAGATION DELAY TYPICAL SUPPLY CURRENT (TOTAL)
74F241 4.0 ns 53 mA
ORDERING INFORMATION
ORDER CODE
DESCRIPTION COMMERCIAL RANGE
V
CC
= 5 V ±10%, T
amb
= 0 °C to +70 °C
PKG DWG #
20-pin plastic DIP N74F241N SOT146-1
20-pin plastic SOL N74F241D SOT163-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS DESCRIPTION
74F (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
Ian, Ibn Data inputs 1.0/2.67 20 µA/1.6 mA
OEa, OEb Output enable input 1.0/1.67 20 µA/1 mA
Yan, Ybn Data outputs 750/106.7 15 mA/64 mA
Note to input and output loading and fan out table
One (1.0) FAST unit load is defined as: 20 µA in the HIGH state and 0.6 mA in the LOW state.
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
SF00324
OEa
Ia0
Yb0
Ia1
Yb1
Ia2
Yb2
Ia3
Yb3
GND
V
CC
OEb
Ya0
Ib0
Ya1
Ya2
Ib2
Ya3
Ib3
Ib1
LOGIC SYMBOL
V
CC
= Pin 20
GND = Pin 10
SF00325
2 4 6 8 17 15 13 11
18 16 14 12 3 5 7 9
Ia0 Ia1 Ia2 Ia3 Ib0 Ib1 Ib2 Ib3
1
19
OEa
OEb
Ya0 Ya1 Ya2 Ya3 Yb0 Yb1 Yb2 Yb3
