參數(shù)資料
型號: 74LVT244A
廠商: NXP Semiconductors N.V.
英文描述: Octal Buffers And Line Drivers With 3-State Outputs 20-TSSOP -40 to 85
中文描述: 3.3八路緩沖器/線路驅動器三態(tài)
文件頁數(shù): 5/10頁
文件大小: 89K
代理商: 74LVT244A
Philips Semiconductors
Product specification
74LVT244A
3.3V Octal buffer/line driver (3-State)
1998 Feb 19
5
AC CHARACTERISTICS
GND = 0V; t
R
= t
F
= 2.5ns; C
L
= 50pF; R
L
= 500
; T
amb
= –40
°
C to +85
°
C.
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
±
0.3V
V
CC
= 2.7V
UNIT
MIN
TYP
1
MAX
MAX
t
PLH
t
PHL
Propagation delay
nAx to nYx
1
1
1
2.5
2.6
4.1
4.1
5.0
5.1
ns
t
PZH
t
PZL
Output enable time
to High and Low level
2
1
1.1
3.2
3.1
5.2
5.2
6.3
6.7
ns
t
PHZ
t
PLZ
Output disable time
from High and Low level
2
1.9
1.8
3.3
3.3
5.6
5.1
6.3
5.6
ns
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
°
C.
AC WAVEFORMS
V
M
= 1.5V, V
IN
= GND to 2.7V
nAx INPUT
V
M
V
M
nYx
OUTPUT
V
M
V
M
t
PLH
t
PHL
SA00016
3.0V or V
CC
whichever
is less
0V
V
OH
V
OL
Waveform 1. Input (nAx) to Output (nYx) Propagation Delays
OE INPUT
t
PZH
t
PHZ
Yn OUTPUT
V
OH
V
OH
– 0.3V
Yn OUTPUT
V
OL
t
PZL
t
PLZ
3.0V
0V
V
OL
+ 0.3V
2.7V
1.5V
1.5V
1.5V
1.5V
0V
SV00103
Waveform 2. 3-State Output Enable and Disable Times
相關PDF資料
PDF描述
74LVT244B Octal Buffers And Line Drivers With 3-State Outputs 20-SSOP -40 to 85
74LVT245PWDH Octal Buffers And Line Drivers With 3-State Outputs 20-TSSOP -40 to 85
74LVT245 3.3V Octal transceiver with direction pin(3-State)(帶定向引腳的3.3V八收發(fā)器(三態(tài)))
74LVT245MTCX_NL Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
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