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参数资料
| 型号： | 74FST3251DT |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 通用总线功能 |
| 英文描述： | 8:1 Multiplexer/Demultiplexer Bus Switch |
| 中文描述： | CBT/FST/QS/5C/B SERIES, 1 LINE TO 8 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| 封装： | LEAD FREE, TSSOP-16 |
| 文件页数： | 4/8页 |
| 文件大小： | 86K |
| 代理商： | 74FST3251DT |
74FST3251
http://onsemi.com
4
DC ELECTRICAL CHARACTERISTICS
V
CC
T
A
=
40 C to
85 C
Symbol
Parameter
Conditions
(V)
Min
Typ*
Max
Unit
V
IK
Clamp Diode Resistance
I
IN
=
18mA
4.5
1.2
V
V
IH
High–Level Input Voltage
4.0 to 5.5
2.0
V
V
IL
Low–Level Input Voltage
4.0 to 5.5
0.8
V
I
I
Input Leakage Current
0
V
IN
5.5 V
5.5
1.0
A
I
OZ
OFF–STATE Leakage Current
0
A, B
V
CC
5.5
1.0
A
R
ON
Switch On Resistance (Note 6)
V
IN
= 0 V, I
IN
= 64 mA
4.5
4
7
V
IN
= 0 V, I
IN
= 30 mA
4.5
4
7
V
IN
= 2.4 V, I
IN
= 15 mA
4.5
8
15
V
IN
= 2.4 V, I
IN
= 15 mA
4.0
11
20
I
CC
Quiescent Supply Current
V
IN
= V
CC
or GND, I
OUT
= 0
5.5
3
A
I
CC
Increase In I
CC
per Input
*Typical values are at V
CC
= 5.0 V and T
A
= 25 C.
6. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower
of the voltages on the two (A or B) pins.
One input at 3.4 V, Other inputs at V
CC
or GND
5.5
2.5
mA
AC ELECTRICAL CHARACTERISTICS
T
A
=
40 C to
85 C
C
L
= 50 pF, RU = RD = 500
V
CC
= 4.5–5.5 V
V
CC
= 4.0 V
Symbol
Parameter
Conditions
Min
Max
Min
Max
Unit
t
PHL
, t
PLH
Prop Delay Bus to Bus (Note 7)
V
I
= OPEN
0.25
0.25
ns
Prop Delay, Select to Bus A
1.0
6.3
6.9
t
PZH
, t
PZL
Output Enable Time, Select to Bus B
V
I
= 7 V for t
PZL
1.0
6.0
6.5
ns
Output Enable Time, I
OE
to Bus A, B
V
I
= OPEN for t
PZH
1.0
6.0
6.5
t
PHZ
, t
PLZ
Output Disable Time, Select to Bus B
V
I
= 7 V for t
PLZ
1.0
5.8
6.5
ns
Output Disable Time, I
OE
to Bus A, B
7. This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the
typical On resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
V
I
= OPEN for t
PHZ
1.0
5.8
6.5
CAPACITANCE
(Note 8)
Symbol
Parameter
Conditions
Typ
Max
Unit
C
IN
Control Pin Input Capacitance
V
CC
= 5.0 V
3
pF
C
I/O
A Port Input/Output Capacitance
V
CC
, OE = 5.0 V
13
pF
C
I/O
8. T
A
=
B Port Input/Output Capacitance
V
CC
, OE = 5.0 V
5
pF
25 C, f = 1 MHz, Capacitance is characterized but not tested.
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| 74FST3251QS | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
| 74FST3251QSR | 功能描述:IC MUX/DEMUX 8:1 BUS SW 16QSOP RoHS:否 类别:集成电路 (IC) >> 逻辑 - 信号开关，多路复用器，解码器 系列:74FST 标准包装:2,000 系列:74CB 类型:FET 总线开关 电路:8 x 1:1 独立电路:1 输出电流高，低:15mA，30mA 电压电源:单电源 电源电压:2.3 V ~ 3.6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TFSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TVSOP 包装:带卷 (TR) 产品目录页面:951 (CN2011-ZH PDF) 其它名称:296-19129-2 |
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