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参数资料
| 型号： | SN54AC245FK |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | AC SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, CQCC20 |
| 封装： | CERAMIC, QCC-20 |
| 文件页数： | 4/6页 |
| 文件大小： | 100K |
| 代理商： | SN54AC245FK |
SN54AC245, SN74AC245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS461D – FEBRUARY 1995 – REVISED DECEMBER 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54AC245
SN74AC245
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
3 V
2.9
IOH = –50 mA
4.5 V
4.4
5.5 V
5.4
VOH
IOH = –12 mA
3 V
2.56
2.4
2.46
V
VOH
IOH =24 mA
4.5 V
3.86
3.7
3.76
V
IOH = –24 mA
5.5 V
4.86
4.7
4.76
IOH = – 50 mA
5.5 V
3.85
IOH = – 75 mA
5.5 V
3.85
3 V
0.002
0.1
IOL = 50 mA
4.5 V
0.001
0.1
5.5 V
0.001
0.1
VOL
IOL = 12 mA
3 V
0.36
0.5
0.44
V
VOL
IOL =24mA
4.5 V
0.36
0.5
0.44
V
IOL = 24 mA
5.5 V
0.36
0.5
0.44
IOL = 50 mA
5.5 V
1.65
IOL = 75 mA
5.5 V
1.65
II
A or B ports
VI =VCC or GND
55 V
±0.1
±1
mA
II
OE or DIR
VI = VCC or GND
5.5 V
±0.1
±1
mA
IOZ
VO = VCC or GND,
VI(OE) = VIL or VIH
5.5 V
±0.5
±10
±5
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
80
40
mA
Ci
VI = VCC or GND
5 V
4.5
pF
Cio
VO = VCC or GND
5 V
15
pF
Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms.
For I/O ports, the parameter IOZ includes the input leakage current.
switching characteristics over recommended operating free-air temperature range,
VCC = 3.3 V " 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
SN54AC245
SN74AC245
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
AorB
BorA
1.5
5
8.5
1
11.5
1
9
ns
tPHL
A or B
B or A
1.5
5
8.5
1
10
1
9
ns
tPZH
OE
AorB
2.5
7
11.5
1
13.5
2
12.5
ns
tPZL
OE
A or B
2.5
7.5
12
1
14.5
2
13.5
ns
tPHZ
OE
AorB
2
6.5
12
1
13.5
1
12.5
ns
tPLZ
OE
A or B
2
7
11.5
1
14
1.5
13
ns
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN54AC245J | 制造商:TI 制造商全称:Texas Instruments 功能描述:OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
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| SN54AC32J | 制造商:TI 制造商全称:Texas Instruments 功能描述:QUADRUPLE 2-INPUT POSITIVE-OR GATES |
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