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參數(shù)資料
| 型號(hào)： | 935203790112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | ABT SERIES, OCTAL 1-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 5.30 MM, PLASTIC, MO-150, SOT-339-1, SSOP2-20 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大小： | 106K |
| 代理商： | 935203790112 |
Philips Semiconductors
Product data
74ABT2245
Octal transceiver with direction pin and
30
series termination resistors (3-State)
2
2002 Dec 17
FEATURES
Octal bidirectional bus interface
3-State buffers
Output capability: +12 mA / –32 mA
Latch-up protection exceeds 500 mA 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 30 , 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
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 = 0 V
TYPICAL
UNIT
tPLH
tPHL
Propagation delay
An to Bn or Bn to An
CL = 50 pF; VCC = 5 V
3.9
ns
CIN
Input capacitance DIR, OE
VI = 0 V or VCC
4
pF
CI/O
I/O pin capacitance
Outputs disabled; VO = 0 V or VCC
7
pF
ICCZ
Total supply current
Outputs disabled; VCC = 5.5 V
50
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
PART NUMBER
DWG NUMBER
20-Pin plastic SO
–40
°C to +85 °C
74ABT2245D
SOT163-1
20-Pin Plastic SSOP Type II
–40
°C to +85 °C
74ABT2245DB
SOT339-1
20-Pin Plastic TSSOP Type I
–40
°C to +85 °C
74ABT2245PW
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 (0 V)
20
VCC
Positive supply voltage
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