Philips 74ABT245-1PW, 74ABT245-1DB, 74ABT245D, 74ABT245PW, 74ABT245N Datasheet
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74ABT245
Octal transceiver with direction pin
(3-State)
Product specification
Supersedes data of 1996 Sep 10
1998 Jan 16
INTEGRATED CIRCUITS
IC23 Data Handbook
Philips Semiconductors Product specification
74ABT245Octal transceiver with direction pin (3-State)
2
1998 Jan 16 853-1447 18867
FEA TURES
•Octal bidirectional bus interface
•3-State buffers
•Output capability: +64mA/–32mA
•Latch-up protection exceeds 500mA per Jedec Std 17
•ESD protection exceeds 2000 V per MIL STD 833 Method 3015
and 200 V per Machine Model
•Power-up 3-State
•Live insertion/extraction permitted
•Inputs are disabled during 3-State mode
DESCRIPTION
The 74ABT245 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed and high
output drive.
The 74ABT245 device is an octal transceiver featuring non-inverting
3-State bus compatible outputs in both send and receive directions.
The control function implementation minimizes external timing
requirements. The device features an Output Enable (OE
) input for
easy cascading and a Direction (DIR) input for direction control.
QUICK REFERENCE DA TA
SYMBOL PARAMETER
CONDITIONS
T
amb
= 25°C; GND = 0V
TYPICAL UNIT
t
PLH
t
PHL
Propagation delay
An to Bn or Bn to An
CL = 50pF; VCC = 5V
2.2
2.9
ns
C
IN
Input capacitance DIR, OE VI = 0V or V
CC
4 pF
C
I/O
I/O pin capacitance Outputs disabled; VO = 0V or V
CC
7 pF
I
CCZ
Total supply current Outputs disabled; VCC =5.5V 50 µA
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA DWG NUMBER
20-Pin Plastic DIP –40°C to +85°C 74ABT245 N 74ABT245 N SOT146-1
20-Pin plastic SO –40°C to +85°C 74ABT245 D 74ABT245 D SOT163-1
20-Pin Plastic SSOP Type II –40°C to +85°C 74ABT245 DB 74ABT245 DB SOT339-1
20-Pin Plastic TSSOP Type I –40°C to +85°C 74ABT245 PW 74ABT245PW DH SOT360-1
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
DIR
A0
A1
A2
A3
A4
A5
A6
A7
GND
V
CC
OE
B0
B1
B2
B3
B4
B5
B6
B7
SA00121
PIN DESCRIPTION
PIN
NUMBER
SYMBOL NAME AND FUNCTION
1 DIR Direction control input
2, 3, 4, 5,
6, 7, 8, 9
A0 – A7 Data inputs/outputs (A side)
18, 17, 16,
15, 14, 13,
12, 11
B0 – B7 Data inputs/outputs (B side)
19 OE Output enable input (active-Low)
10 GND Ground (0V)
20 V
CC
Positive supply voltage
Philips Semiconductors Product specification
74ABT245Octal transceiver with direction pin (3-State)
1998 Jan 16
3
LOGIC SYMBOL
A0
A1
A2
A3
A4
A5
A6
A7
B0
B1
B2
B3
B4
B5
B6
B7
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
OE
19
DIR
1
SA00122
LOGIC SYMBOL (IEEE/IEC)
G3
3 EN1 (BA)
3 EN2 (AB)
1
2
18
17
16
15
14
13
12
11
SA00123
19
1
2
3
4
5
6
7
8
9
FUNCTION TABLE
INPUTS INPUTS/OUTPUTS
OE DIR An Bn
L L An = Bn Inputs
L H Inputs Bn = An
H X Z Z
H =High voltage level
L =Low voltage level
X = Don’t care
Z =High impedance ”off” state
ABSOLUTE MAXIMUM RATINGS
1, 2
SYMBOL
PARAMETER CONDITIONS RATING UNIT
V
CC
DC supply voltage –0.5 to +7.0 V
I
IK
DC input diode current VI < 0 –18 mA
V
I
DC input voltage
3
–1.2 to +7.0 V
I
OK
DC output diode current VO < 0 –50 mA
V
OUT
DC output voltage
3
output in Off or High state –0.5 to +5.5 V
I
OUT
DC output current output in Low state 128 mA
T
stg
Storage temperature range –65 to 150 °C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability .
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
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