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参数资料
| 型号： | SN74LVC2952ANSRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| 封装： | GREEN, PLASTIC, SOP-24 |
| 文件页数： | 11/16页 |
| 文件大小： | 466K |
| 代理商： | SN74LVC2952ANSRG4 |
www.ti.com
Electrical Characteristics
Timing Requirements
SN74LVC2952A
OCTAL BUS TRANSCEIVER AND REGISTER
WITH 3-STATE OUTPUTS
SCAS311I – JANUARY 1993 – REVISED MARCH 2005
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP(1)
MAX
UNIT
IOH = –100 A
1.65 V to 3.6 V
VCC – 0.2
IOH = –4 mA
1.65 V
1.2
IOH = –8 mA
2.3 V
1.7
VOH
V
2.7 V
2.2
IOH = –12 mA
3 V
2.4
IOH = –24 mA
3 V
2.2
IOL = 100 A
1.65 V to 3.6 V
0.2
IOL = 4 mA
1.65 V
0.45
VOL
IOL = 8 mA
2.3 V
0.7
V
IOL = 12 mA
2.7 V
0.4
IOL = 24 mA
3 V
0.55
II
Control inputs VI = 0 to 5.5 V
3.6 V
±5
A
Ioff
VI or VO = 5.5 V
0
±10
A
IOZ(2)
VO = 0 to 5.5 V
3.6 V
±10
A
VI = VCC or GND
10
ICC
IO = 0
3.6 V
A
3.6 V
≤ V
I ≤ 5.5 V
(3)
10
I
CC
One input at VCC – 0.6 V, Other inputs at VCC or GND
2.7 V to 3.6 V
500
A
Ci
Control inputs VI = VCC or GND
3.3 V
5
pF
Cio
A or B ports
VO = VCC or GND
3.3 V
8.5
pF
(1)
All typical values are at VCC = 3.3 V, TA = 25°C.
(2)
For I/O ports, the parameter IOZ includes the input leakage current.
(3)
This applies in the disabled state only.
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
VCC = 1.8 V
VCC = 2.5 V
VCC = 3.3 V
VCC = 2.7 V
± 0.15 V
± 0.2 V
± 0.3 V
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
fclock
Clock frequency
(1)
150
MHz
tw
Pulse duration, CLK high or low
(1)
3.3
ns
Data before CLK high
(1)
1.7
1.3
tsu
Setup time
ns
CLKEN before CLK high
(1)
1.3
1.1
Data after CLK high
(1)
1.8
1.1
th
Hold time
ns
CLKEN after CLK high
(1)
1.4
1.1
(1)
This information was not available at the time of publication.
4
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