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參數(shù)資料
| 型號： | SN54BCT245W |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Reference Voltage Generator for VCOM Adjustment 8-TSSOP |
| 中文描述： | 八路總線收發(fā)器與三態(tài)輸出 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大小： | 102K |
| 代理商： | SN54BCT245W |
SN54BCT245, SN74BCT245
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS013F – SEPTEMBER 1988 – REVISED APRIL 1994
2–3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54BCT245
MIN
NOM
SN74BCT245
MIN
NOM
UNIT
MAX
MAX
VCC
VIH
VIL
IIK
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input clamp current
–18
–18
mA
IOH
High level output current
High-level output current
A port
–3
–3
mA
B port
–12
–15
IOL
Low level output current
Low-level output current
A port
20
24
mA
B port
48
64
TA
Operating free-air temperature
–55
125
0
70
°
C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54BCT245
MIN
TYP
SN74BCT245
MIN
TYP
UNIT
MAX
MAX
VIK
VCC = 4.5 V,
II = –18 mA
IOH = –1 mA
IOH = –3 mA
IOH = –3 mA
IOH = –12 mA
IOH = –15 mA
IOL = 20 mA
IOL = 24 mA
IOL = 48 mA
IOL = 64 mA
–1.2
–1.2
V
A port
VCC= 4 5 V
2.5
3.4
2.5
3.4
2.4
3.3
2.4
3.3
VOH
2.4
3.3
2.4
3.3
V
B port
VCC = 4.5 V
2
3.2
2
3.1
A port
VCC= 4 5 V
VCC = 4.5 V
0.3
0.5
VOL
0.35
0.5
V
B port
VCC= 4 5 V
VCC = 4.5 V
0.38
0.55
0.42
0.55
II
A or B port
VCC= 5 5 V
VCC = 5.5 V,
VI= 5 5 V
VI = 5.5 V
1
1
mA
Control input
0.1
0.1
IIH
A or B port
VCC= 5 5 V
VCC = 5.5 V,
VI= 2 7 V
VI = 2.7 V
70
70
μ
A
Control input
20
20
I
IIL
A or B port
VCC= 5 5 V
VCC = 5.5 V,
VI= 0 5 V
VI = 0.5 V
–0.65
–0.65
mA
Control input
–1.2
–1.2
IOS§
A port
VCC= 5 5 V
VCC = 5.5 V,
VO= 0
VO = 0
–60
–150
–60
–150
mA
B port
–100
–225
–100
–225
ICCL
ICCH
ICCZ
Ci
A to B
VCC = 5.5 V
VCC = 5.5 V
VCC = 5.5 V
VCC = 5 V,
57
90
57
90
mA
A to B
36
57
36
57
mA
10
15
10
15
mA
Control input
VI = 2.5 V or 0.5 V
7
7
pF
Cio
A to B
B to A
VCC= 5 V
VCC = 5 V,
VO= 2 5 V or 0 5 V
VO = 2.5 V or 0.5 V
9
9
pF
12
12
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.
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