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74ABT2245 Datasheet(PDF) 2 Page - NXP Semiconductors

Part No. 74ABT2245
Description  Octal transceiver with direction pin with 30ohm series termination resistors 3-State
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74ABT2245 Datasheet(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74ABT2245
Octal transceiver with direction pin
and 30
Ω series termination resistors (3-State)
2
1998 Jan 16
853-1761 18865
FEATURES
Octal bidirectional bus interface
3-State buffers
Output capability: +12mA/–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
Same as 74ABT245-1
Outputs include series resistance of 30Ω, making external
termination resistors unnecessary
Inputs are disabled during 3-State mode
DESCRIPTION
The 74ABT2245 high-performance BiCMOS device combines low
static and dynamic power dissipation with high speed.
The 74ABT2245 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.
The 74ABT2245 is designed with 30
Ω series resistance in both the
High and Low states of the output. This design reduces line noise in
applications such as memory address drivers, clock drivers, and bus
receivers/transmitters.
The 74ABT2245 is the same as the 74ABT245-1. The part number
has been changed to reflect industry standards.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
An to Bn or Bn to An
CL = 50pF; VCC = 5V
3.9
ns
CIN
Input capacitance DIR, OE
VI = 0V or VCC
4
pF
CI/O
I/O pin capacitance
Outputs disabled; VO = 0V or VCC
7
pF
ICCZ
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
74ABT2245 N
74ABT2245 N
SOT146-1
20-Pin plastic SO
–40
°C to +85°C
74ABT2245 D
74ABT2245 D
SOT163-1
20-Pin Plastic SSOP Type II
–40
°C to +85°C
74ABT2245 DB
74ABT2245 DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40
°C to +85°C
74ABT2245 PW
7ABT2245PW 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
VCC
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
VCC
Positive supply voltage


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