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参数资料
| 型号： | SN64BCT245NSRE4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | BCT/FBT SERIES, 8-BIT TRANSCEIVER, TRUE OUTPUT, PDSO20 |
| 封装： | GREEN, PLASTIC, SOP-20 |
| 文件页数： | 6/12页 |
| 文件大小： | 483K |
| 代理商： | SN64BCT245NSRE4 |
SN64BCT245
OCTAL BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCBS040A – JANUARY 1990 – REVISED JANUARY 1994
3–3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.2
V
Any A
IOH = –1 mA
2.5
3.4
VOH
Any A or B
VCC = 4.5 V
IOH = – 3 mA
2.4
3.3
V
Any B
IOH = –15 mA
2
3.1
VOL
Any A
VCC =4 5V
IOL = 24 mA
0.35
0.5
V
VOL
Any B
VCC = 4.5 V
IOL = 64 mA
0.42
0.55
V
Power up
VCC =0to2 3V
VO = 2.7 V
OE at 0 8 V
70
A
IOZ
Power up
VCC = 0 to 2.3 V
VO = 0.5 V
OE at 0.8 V
– 0.65
mA
IOZ
Power down
VCC =1 8Vto0
VO = 2.7 V
OE at 0 8 V
70
A
Power down
VCC = 1.8 V to 0
VO = 0.5 V
OE at 0.8 V
– 0.65
mA
I
A and B
VCC =5 5V
VI =5 5V
1
mA
II
DIR and OE
VCC = 5.5 V,
VI = 5.5 V
0.1
mA
I
A and B
VCC =5 5V
VI =2 7V
70
A
IIH
DIR and OE
VCC = 5.5 V,
VI = 2.7 V
20
A
I
A and B
VCC =5 5V
VI =0 5V
– 0.65
mA
IIL
DIR and OE
VCC = 5.5 V,
VI = 0.5 V
–1.2
mA
I
§
Any A
VCC =5 5V
VO =0
–60
–150
mA
IOS§
Any B
VCC = 5.5 V,
VO = 0
–100
– 225
mA
ICCH
A-to-B
VCC = 5.5 V
36
57
ICCL
A-to-B
VCC = 5.5 V
57
90
mA
ICCZ
VCC = 5.5 V
10
15
Ci
OE and DIR
VCC = 5 V,
VI = 2.5 V or 0.5 V
7
pF
Ci
A to B
VCC =5V
VI =2 5Vor0 5V
9
pF
Cio
B to A
VCC = 5 V,
VI = 2.5 V or 0.5 V
12
pF
All typical values are at VCC = 5 V, TA = 25°C.
For I/O ports, the parameters IIH and IIL include the off-state output current.
§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
switching characteristics (see Note 2)
PARAMETER
FROM
()
TO
(O
)
VCC = 5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
UNIT
PARAMETER
(INPUT)
(OUTPUT)
R2 = 500
,
TA = 25°C
TA = – 40°C
to 85
°C
TA = 0°C
to 70
°C
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
tPLH
AorB
BorA
1
6
1
7.2
1
7
ns
tPHL
A or B
B or A
1.5
6.6
1.5
7.6
1.5
7
ns
tPZH
OE
AorB
1.5
9.4
1.5
11.2
1.5
10.9
ns
tPZL
OE
A or B
1.5
10.2
1.5
11.8
1.5
11.6
ns
tPHZ
OE
AorB
1.5
8.3
1.5
9.7
1.5
9.3
ns
tPLZ
OE
A or B
1.5
7.8
1.5
9.6
1.5
9.1
ns
NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
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