7LVT2245PWDH PDF даташит
Спецификация 7LVT2245PWDH изготовлена «NXP Semiconductors» и имеет функцию, называемую «3.3V Octal transceiver with 30ohm termination resistors 3-State». |
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Детали детали
Номер произв | 7LVT2245PWDH |
Описание | 3.3V Octal transceiver with 30ohm termination resistors 3-State |
Производители | NXP Semiconductors |
логотип |
10 Pages
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INTEGRATED CIRCUITS
74LVT2245
3.3V Octal transceiver with 30Ω
termination resistors (3-State)
Product specification
Supersedes data of 1996 Mar 11
IC23 Data Handbook
1998 Feb 19
Philips
Semiconductors
No Preview Available ! |
Philips Semiconductors
3.3V Octal transceiver with 30Ω
termination resistors (3-State)
Product specification
74LVT2245
FEATURES
• 30Ω output termination resistors
• Octal bidirectional bus interface
• 3-State buffers
• Output capability: +12mA/-12mA
• TTL input and output switching levels
• Input and output interface capability to systems at 5V supply
• Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
• Live insertion/extraction permitted
• Power-up 3-State
• No bus current loading when output is tied to 5V bus
• Latch-up protection exceeds 500mA per JEDEC Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
DESCRIPTION
The LVT2245 is a high-performance BiCMOS product designed for
VCC operation at 3.3V.
This 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 74LVT2245 is designed with 30Ω 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
transceivers/transmitters.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
Tamb = 25°C; GND = 0V
TYPICAL
UNIT
tPLH Propagation delay
tPHL An to Bn or Bn to An
CL = 50pF;
VCC = 3.3V
3.2
3.1
ns
CIN
Input capacitance
DIR, OE
VI = 0V or 3.0V
4 pF
CI/O
ICCZ
I/O pin capacitance
Total supply current
Outputs disabled; VI/O = 0V or 3.0V
Outputs disabled; VCC = 3.6V
10 pF
0.13 mA
ORDERING INFORMATION
PACKAGES
20-Pin Plastic SO
20-Pin Plastic SSOP
20-Pin Plastic TSSOP
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74LVT2245 D
74LVT2245 DB
74LVT2245 PW
NORTH AMERICA
74LVT2245 D
74LVT2245 DB
7LVT2245PW DH
DWG NUMBER
SOT163-1
SOT339-1
SOT360-1
PIN CONFIGURATION
DIR 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
20 VCC
19 OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
SV00014
LOGIC SYMBOL
1
DIR
2
A0
3
A1
4
A2
5
A3
6
A4
7
A5
8
A6
9
A7
19
OE
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
SV00016
1998 Feb 19
2 853-1828 18985
No Preview Available ! |
Philips Semiconductors
3.3V Octal transceiver with 30Ω
termination resistors (3-State)
Product specification
74LVT2245
LOGIC SYMBOL (IEEE/IEC)
19
G3
3 EN1 (BA)
1
3 EN2 (AB)
2
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
SV00015
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
FUNCTION TABLE
INPUTS
OEn
DIR
LL
LH
HX
H = High voltage level
L = Low voltage level
X = Don’t care
Z = High impedance “Off ” state
INPUTS/OUTPUTS
An Bn
An= Bn
Inputs
Inputs
Bn =An
ZZ
SCHEMATIC OF EACH OUTPUT
VCC
VCC
25Ω
25Ω
SV00102
ABSOLUTE MAXIMUM RATINGS1,2
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
VCC
IIK
VI
IOK
VOUT
DC supply voltage
DC input diode current
DC input voltage3
DC output diode current
DC output voltage3
IOUT
DC output current
VI < 0
VO < 0
Output in Off or High state
Output in Low state
Output in High state
–0.5 to +4.6
–50
–0.5 to +7.0
–50
–0.5 to +7.0
128
–64
V
mA
V
mA
V
mA
Tstg 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 negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
1998 Feb 19
3
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7LVT2245PWDH | 3.3V Octal transceiver with 30ohm termination resistors 3-State | NXP Semiconductors |
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