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參數(shù)資料
| 型號： | 7LVTH244APWDH |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 3.3V Octal buffer/line driver 3-State |
| 中文描述： | 3.3八路緩沖器/線路驅(qū)動器三態(tài) |
| 文件頁數(shù)： | 2/10頁 |
| 文件大?。?/td> | 101K |
| 代理商： | 7LVTH244APWDH |
Philips Semiconductors
Product specification
74LVTH244A
3.3V Octal buffer/line driver (3-State)
2
1998 Oct 02
853-2130 20128
FEATURES
Octal bus interface
3-State buffers
Output capability: +64mA/-32mA
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
Power-up 3-State
Live insertion/extraction permitted
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 LVTH244A is a high-performance BiCMOS product designed for
V
CC
operation at 3.3V.
This device is an octal buffer that is ideal for driving bus lines. The
device features two Output Enables (OE1, OE2), each controlling
four of the 3-State outputs.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
T
amb
= 25
°
C; GND = 0V
TYPICAL
UNIT
t
PLH
t
PHL
Propagation delay
nAx to nYx
C
L
= 50pF;
V
CC
= 3.3V
1.9
2.0
ns
C
IN
Input capacitance
V
I
= 0V or 3.0V
4
pF
C
OUT
Output capacitance
Outputs disabled; V
O
= 0V or 3.0V
8
pF
I
CCZ
Total supply current
Outputs disabled; V
CC
= 3.6V
0.13
mA
ORDERING INFORMATION
PACKAGES
20-Pin Plastic SOL
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
TEMPERATURE RANGE
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
OUTSIDE NORTH AMERICA
74LVTH244A D
74LVTH244A DB
74LVTH244A PW
NORTH AMERICA
74LVTH244A D
74LVTH244A DB
7LVTH244APW DH
DWG NUMBER
SOT163-1
SOT339-1
SOT360-1
PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1OE
1A0
2Y3
1A1
2Y2
1A2
2Y1
1A3
2Y0
1Y3
GND
2A1
1Y2
2A2
1Y1
2A3
1Y0
2OE
V
CC
2A0
SV00010
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
2, 4, 6, 8
1A0 – 1A3
Data inputs
11. 13, 15, 17
2A0 – 2A3
Data inputs
18, 16, 14, 12
1Y0 – 1Y3
Data outputs
9, 7, 5, 3
2Y0 – 2Y3
Data outputs
1, 19
1OE, 2OE
Output enables
10
GND
Ground (0V)
20
V
CC
Positive supply voltage
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