參數(shù)資料
型號: 74F757
廠商: NXP Semiconductors N.V.
英文描述: Octal inverter buffer open-collector
中文描述: 八進制逆變器緩沖開路集電極
文件頁數(shù): 7/12頁
文件大?。?/td> 88K
代理商: 74F757
Philips Semiconductors
Product specification
74F756/74F757/74F760
Buffers
1989 Nov 27
7
AC ELECTRICAL CHARACTERISTICS
LIMITS
T
amb
= +25
°
C
V
CC
= +5.0V
C
L
= 50pF, R
L
= 500
MIN
TYP
8.5
1.0
3.0
9.0
5.0
7.0
7.5
3.0
5.5
9.0
4.5
7.0
7.5
3.5
5.5
9.5
5.0
7.0
T
amb
= 0
°
C to +70
°
C
V
CC
= +5.0V
±
10%
C
L
= 50pF, R
L
= 500
MIN
8.5
1.0
9.0
4.5
7.5
3.0
8.5
4.0
7.5
3.0
9.0
4.5
SYMBOL
PARAMETER
TEST
UNIT
CONDITION
MAX
14.0
6.0
14.5
10.0
13.5
8.5
15.0
10.0
13.5
8.5
14.5
10.5
MAX
15.0
6.5
15.0
10.5
14.0
9.0
16.0
10.5
14.0
9.0
15.0
10.5
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
Propagation delay
Ian, Ibn to Yn
Propagation delay
OEn to Yn
Propagation delay
Ian, Ibn to Yn
Propagation delay
OEa or OEb to Yn
Propagation delay
Ian, Ibn to Yn
Propagation delay
OEn to Yn
74F756
Waveform 1, 2
11.0
ns
Waveform 1, 2
11.5
ns
74F757
Waveform 1, 2
10.5
ns
Waveform 1, 2
10.5
ns
74F760
Waveform 1, 2
10.0
ns
Waveform 1, 2
11.5
ns
AC WAVEFORMS
For all waveforms, V
M
= 1.5V.
Ian, Ibn, OEn
V
M
V
M
V
M
V
M
t
PLH
t
PHL
Yn
SF01256
Waveform 1. Propagation Delay for Inverting Outputs
Ian, Ibn,
OEa, OEb
V
M
V
M
V
M
V
M
t
PHL
t
PLH
Yn
SF01257
Waveform 2. Propagation Delay for Non-invertIng Outputs
TYPICAL PROPAGATION DELAYS VERSUS LOAD FOR OPEN COLLECTOR OUTPUTS
0
100
200
300
400
500
600
18
16
14
12
10
8
6
4
2
0
LOAD RESISTOR ( )
PROPAGATION
DELAY (ns)
t
PLH
t
PHL
SF01258
NOTE:
When using open-collector parts, the value of the pull-up resistor greatly affects the value of the t
PLH
. For example, changing the pull-up resistor
value from 500 to 100 will improve the t
PLH
up to 50% with only slight increase in the t
PHL
. However, if the pull-up resistor is changed, the
user must make certain that the total I
OL
current through the resistor and the total I
IL
’s of the receivers do not exceed the I
OL
maximum
specification.
相關PDF資料
PDF描述
74F756 Octal inverter buffer (open-collector)(八通道反相緩沖器(集電極開路))
74F760 Octal buffer (open-collector)(八通道緩沖器(集電極開路))
74F30244 Octal 30Ω line driver with enable,non-inverting (open collector)(帶使能30Ω的八線驅(qū)動器,同向(開啟集電極))
74F764-1 DRAM dual-ported controllers
74F764-1A DRAM dual-ported controllers
相關代理商/技術參數(shù)
參數(shù)描述
74F760 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Octal inverter buffer open-collector
74F760D 制造商:SIG 功能描述:
74F764-1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DRAM dual-ported controllers
74F764-1A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DRAM dual-ported controllers
74F764-1N 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DRAM dual-ported controllers