參數(shù)資料
型號： LTC1343
廠商： Linear Technology Corporation
英文描述： Software-Selectable Multiprotocol Transceiver(軟件可選擇4發(fā)4收多協(xié)議收發(fā)器)
中文描述： 軟件選擇多協(xié)議收發(fā)器（軟件可選擇4發(fā)4收多協(xié)議收發(fā)器）
文件頁數(shù)： 5/28頁
文件大?。?/td> 388K
代理商： LTC1343
5
LTC1343
V
DD
(Pin 1):
Generated Positive Supply Voltage for
RS232. Connect a 1
μ
F capacitor to ground.
C1
+
(Pin 2):
Capacitor C1 Positive Terminal. Connect a
1
μ
F capacitor between C1
+
and C1
–
.
PWRV
CC
(Pin 3):
Positive Supply for the Charge Pump.
4.75V
≤
PWRV
CC
≤
5.25V. Tie to V
CC
(Pin 8) and bypass
with a 1
μ
F capacitor to ground.
PI
FU
CTIO
N
S
U
U
C1
–
(Pin 4):
Capacitor C1 Negative Terminal.
D1 (Pin 5):
TTL Level Driver 1 Input.
D2 (Pin 6):
TTL Level Driver 2 Input.
D3 (Pin 7):
TTL Level Driver 3 Input. Becomes a CMOS
level output when the chip is in the echoed clock mode
(EC = 0V).
Note 1:
Absolute Maximum Ratings are those beyond which the safety of a
device may be impaired.
Note 2:
All currents into device pins are positive; all currents out of device
are negative. All voltages are referenced to device ground unless otherwise
specified.
Note 3:
All typicals are given for V
CC
= 5V, C1 = C2 = C
VCC
= C
VDD
= 1
μ
F,
C
VEE
= 3.3
μ
F tantalum capacitors and T
A
= 25
°
C.
ELECTRICAL CHARACTERISTICS
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 5V (Notes 2, 3)
SYMBOL
PARAMETER
CONDITIONS
V.10 Receiver
V
TH
Receiver Input Threshold Voltage
0
°
C
≤
T
A
≤
70
°
C
–7V
≤
V
CM
≤
7V, –40
°
C
≤
T
A
≤
85
°
C
V
TH
Receiver Input Hysteresis
I
IN
Receiver Input Current
–10V
≤
V
A
≤
10V
R
IN
Receiver Input Impedance
–10V
≤
V
A
≤
10V
t
r
, t
f
Rise or Fall Time
(Figures 5, 9)
t
PLH
Input to Output
(Figures 5, 9)
t
PHL
Input to Output
(Figures 5, 9)
V.28 Driver
V
O
Output Voltage
Open Circuit
R
L
= 3k (Figure 4)
I
SS
Short-Circuit Current
V
O
= GND
I
OZ
Output Leakage Current
–0.25V
≤
V
O
≤
0.25V, Power Off or
No-Cable Mode or Driver Disabled
SR
Slew Rate
(Figures 4, 8), R
L
= 3k, C
L
= 2500pF
t
PLH
Input to Output
(Figures 4, 8), R
L
= 3k, C
L
= 2500pF
t
PHL
Input to Output
(Figures 4, 8), R
L
= 3k, C
L
= 2500pF
V.28 Receiver
V
THL
Input Low Threshold Voltage
V
TLH
Input High Threshold Voltage
V
TH
Receiver Input Hysteresis
R
IN
Receiver Input Impedance
–15V
≤
V
A
≤
15V
t
r
, t
f
Rise or Fall Time
(Figures 5, 9)
t
PLH
Input to Output
(Figures 5, 9), CTRL = 0V
CTRL = V
CC
t
PHL
Input to Output
(Figures 5, 9), CTRL = 0V
CTRL = V
CC
MIN
TYP
MAX
UNITS
G
G
–0.2
–0.3
0.2
0.3
50
±
0.50
V
V
G
11
mV
mA
k
ns
ns
ns
G
G
20
30
15
350
350
±
10
V
V
G
±
5
7.6
G
±
150
±
100
mA
μ
A
G
±
0.01
G
4.0
30.0
2.5
2.5
V/
μ
s
μ
s
μ
s
G
1.6
1.6
G
G
1.4
1.4
0.4
5
15
110
330
170
480
0.8
V
V
V
G
2.0
0.1
3
G
1.0
7
G
k
ns
ns
ns
ns
ns
G
800
G
800
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相關代理商/技術參數(shù)
參數(shù)描述
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LTC1343CGW#TR 功能描述:IC TXRX SOFTWARE SELECT 44SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
LTC1343CGW#TRPBF 功能描述:IC TXRX SOFTWARE-SELECTBL 44SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發(fā)器 系列:- 標準包裝:250 系列:- 類型:收發(fā)器 驅動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR)
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