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參數(shù)資料
| 型號(hào)： | SN55138W |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | QUADRUPLE BUS TRANSCEIVERS |
| 中文描述： | 翻兩番總線收發(fā)器 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 243K |
| 代理商： | SN55138W |
SN55138, SN75138
QUADRUPLE BUS TRANSCEIVERS
SLLS079B – SEPTEMBER 1973 – REVISED MAY 1995
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN55138
TYP
SN75138
TYP
UNIT
MIN
MAX
MIN
MAX
VIK
Input clamp
voltage
Driver or
strobe
VCC = MIN,
II = –12 mA
–1.5
–1.5
V
VOH
High-level
output
voltage
Receiver
VCC = MIN,
VIL(R) = VIL max,
VIH(S) = 2 V,
IOH = –400
μ
A
2.4
3.5
2.4
3.5
V
VOL
Low-level
output
out ut
voltage
Driver
VCC = MIN,
VIL(S) = 0.8 V,
VCC = MIN,
VIH(S) = 2 V,
VIH(D) = 2 V,
IOL = 100 mA
VIH(R) = VIH min,
IOL = 16 mA
0.45
0.45
V
Receiver
0.4
0.4
II(max)
Input current
at maximum
input voltage
Driver or
strobe
VCC = MAX,
VI = VCC
1
1
mA
IIH
High-level
input current
Driver or
strobe
VCC = MAX,
VI = 2.4 V
40
40
μ
A
Receiver
VCC = 5 V,
VI(S) = 2 V
VI(R) = 4.5 V,
25
300
25
300
IIL
Low-level
input current
Driver or
strobe
VCC = MAX,
VI = 0.4 V
–1
–1.6
–1
–1.6
mA
Receiver
VCC = MAX,
VI(S) = 2 V
VI(R) = 0.45 V,
μ
A
–50
–50
II( ff)
II(off)
Input current
with power
with ower
off
Receiver
VCC= 0
VCC = 0,
VI= 4 5 V
VI = 4.5 V
1 1
1.1
1 5
1.5
1 1
1.1
1 5
1.5
mA
IOS
Short-circuit
output
out ut
current§
Receiver
VCC= MAX
VCC = MAX
mA
–20
–55
–18
–55
All driver
outputs low
VCC = MAX,
VI(S) = 0.8 V
VI(D) = 2 V,
50
65
50
65
Supply
current
ICC
All driver
outputs
out uts
high
VCC = MAX,
VI(S)= 2 V
VI(S) = 2 V,
Receiver outputs open
VI(R) = 3.5 V,
42
55
42
55
mA
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. Parenthetical letters D,
R, and S used with VI refer to the driver input, receiver input, and strobe input, respectively.
All typical values are at VCC = 5 V, TA = 25
°
C.
§Not more than one output should be shorted at a time.
switching characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
FROM
(INPUT)
TO
TEST CONDITIONS
MIN
TYP
MAX
UNIT
(OUTPUT)
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
Driver
Driver
15
24
ns
CL= 50 pF
CL = 50 pF,
RL= 50
RL = 50
,
See Figure 1
14
24
Strobe
Driver
18
28
ns
22
32
Receiver
Receiver
CL= 15 pF
CL = 15 pF
RL= 400
RL = 400
,
See Figure 2
7
8
15
15
ns
tPLH = propagation delay time, low- to high-level output
tPHL = propagation delay time, high- to low-level output
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