N74F245D PHILIPS [NXP Semiconductors], N74F245D Datasheet - Page 2

• Manufacturer Part Number: N74F245D
• Description: Octal transceiver 3-State
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
FEATURES
DESCRIPTION
The 74F245 is an octal transceiver featuring non-inverting 3-State
bus compatible outputs in both transmit and receive directions. The
B port outputs are capable of sinking 64mA and sourcing 15mA,
producing very good capacitive drive characteristics. The device
features an Output Enable (OE) input for easy cascading and
Transmit/Receive (T/R) input for direction control. The 3-State
outputs, B0–B7, have been designed to prevent output bus loading if
the power is removed from the device.
ORDERING INFORMATION
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
NOTE: One (1.0) FAST unit load is defined as: 20 A in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
November 15, 1994
Octal bidirectional bus interface
3-State buffer outputs sink 64mA
15mA source current
Outputs are placed in high impedance state during power-off
conditions
V
GND = Pin 10
Octal transceiver (3-State)
19
CC
1
A0–A7, B0–B7
= Pin 20
A0–A7
B0–B7
74F245
PINS
TYPE
T/R
OE
20-Pin Plastic SSOP Type II
OE
T/R
20-Pin Plastic DIP
B0
A0
18
20-Pin Plastic SO
2
DESCRIPTION
B1
A1
17
3
Data inputs
Output Enable input (active Low)
Transmit/Receive input
A port outputs
B port outputs
B2
A2
16
4
A3
B3
15
5
TYPICAL PROPAGATION DELAY
14
A4
B4
6
13
A5
B5
7
DESCRIPTION
A6
12
B6
8
SF00199
4.0ns
A7
B7
9
11
V
CC
2
= 5V 10%, T
COMMERCIAL RANGE
PIN CONFIGURATION
IEC/IEEE SYMBOL
N74F245DB
N74F245N
N74F245D
74F (U.L.) HIGH/LOW
amb
750/106.7
3.5/1.0
1.0/2.0
1.0/2.0
150/40
= 0 C to +70 C
2
3
4
5
6
7
8
9
19
1
TYPICAL SUPPLY CURRENT (TOTAL)
GND
T/R
A0
A1
A2
A3
A4
A5
A6
A7
10
1
2
3
4
5
6
7
8
9
G3
3EN1 (BA)
3EN1 (AB)
1
70mA
LOAD VALUE HIGH/LOW
SF00198
2
20
19
18
17
16
15
14
13
12
11
DRAWING NUMBER
V
OE
B0
B1
B2
B3
B4
B5
B6
B7
3.0mA/24mA
70 A/0.6mA
20 A/1.2mA
20 A/1.2mA
15mA/64mA
SF00200
Product specification
CC
SOT146-1
SOT163-1
SOT339-1
853–0025 14256
74F245
18
17
16
15
14
13
12
11