參數(shù)資料
型號: 74AHCT245
廠商: NXP Semiconductors N.V.
英文描述: Quadruple 2-Input Positive-AND Gates 14-SSOP -40 to 85
中文描述: 八路總線收發(fā)器,三態(tài)
文件頁數(shù): 8/20頁
文件大?。?/td> 88K
代理商: 74AHCT245
1999 Sep 28
8
Philips Semiconductors
Product specification
Octal bus transceiver; 3-state
74AHC245; 74AHCT245
AC CHARACTERISTICS
Type 74AHC245
GND = 0 V; t
r
= t
f
3.0 ns.
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
(
°
C)
UNIT
WAVEFORMS
C
L
25
40 to +85
40 to +125
MIN.
TYP.
MAX.
MIN.
MAX.
MIN.
MAX.
V
CC
= 3.0 to 3.6 V;
note 1
t
PHL
/t
PLH
propagation delay
A
n
to B
n
; B
n
to A
n
propagation delay
OE to A
n
;
OE to B
n
; signal
name DIR
propagation delay
OE to A
n
;
OE to B
n
; signal
name DIR
propagation delay
A
n
to B
n
; B
n
to A
n
propagation delay
OE to A
n
;
OE to B
n
; signal
name DIR
propagation delay
OE to A
n
;
OE to B
n
; signal
name DIR
see Figs 4 and 6 15 pF
5.0
8.4
1.0
10.0
1.0
10.5
ns
t
PZL
/t
PZH
see Figs 5 and 6
6.5
13.2
1.0
15.5
1.0
16.5
ns
t
PLZ
/t
PHZ
7.5
12.5
1.0
15.5
1.0
16.0
ns
t
PHL
/t
PLH
see Figs 4 and 6 50 pF
6.5
11.9
1.0
13.5
1.0
15.0
ns
t
PZL
/t
PZH
see Figs 5 and 6
9.0
16.7
1.0
19.0
1.0
21.0
ns
t
PLZ
/t
PHZ
10.0
15.8
1.0
18.0
1.0
20.0
ns
相關(guān)PDF資料
PDF描述
74AHC245 Octal bus transceiver; 3-state(八通道總線收發(fā)器;三態(tài))
74AHC245PWDH Octal bus transceiver; 3-state
74AHCT257 Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85
74AHCT259 Quadruple 2-Input Positive-AND Gates 14-SOIC -40 to 85
74AHC259 8-bit addressable latch(8位可尋址鎖存器)
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