參數(shù)資料
型號(hào)： LTC491IS
廠商： LINEAR TECHNOLOGY CORP
元件分類： 通用總線功能
英文描述： Differential Driver and Receiver Pair
中文描述： LINE TRANSCEIVER, PDSO14
封裝： PLASTIC, SOIC-14
文件頁(yè)數(shù)： 3/12頁(yè)
文件大小： 236K
代理商： LTC491IS
3
LTC491
SYMBOL
t
PLH
t
PHL
t
SKEW
t
r
, t
f
t
ZH
t
ZL
t
LZ
t
HZ
t
PLH
t
PHL
t
SKD
t
ZL
t
ZH
t
LZ
t
HZ
PARAMETER
Driver Input to Output
CONDITIONS
R
DIFF
= 54
, C
L1
= C
L2
= 100pF
(Figures 2, 5)
MIN
10
TYP
30
MAX
50
UNITS
G
ns
Driver Input to Output
Driver Output to Output
Driver Rise or Fall Time
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time From Low
Driver Disable Time From High
Receiver Input to Output
Receiver Input to Output
t
PLH
– t
PHL
Differential Receiver Skew
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable From Low
Receiver Disable From High
G
10
30
5
15
40
40
40
40
70
70
13
20
20
20
20
50
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
G
G
5
25
70
70
70
70
150
150
C
L
= 100pF (Figures 4, 6) S2 Closed
C
L
= 100pF (Figures 4, 6) S1 Closed
C
L
= 15pF (Figures 4, 6) S1 Closed
C
L
= 15pF (Figures 4, 6) S2 Closed
R
DIFF
= 54
, C
L1
= C
L2
= 100pF
(Figures 2, 7)
G
G
G
G
G
40
40
G
G
C
L
= 15pF (Figures 3, 8) S1 Closed
C
L
= 15pF (Figures 3, 8) S2 Closed
C
L
= 15pF (Figures 3, 8) S1 Closed
C
L
= 15pF (Figures 3, 8) S2 Closed
G
50
50
50
50
G
G
G
S
V
CC
= 5V
±
5%
U
G C
HARA TERISTICS
WITCHI
Note 2:
All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3:
All typicals are given for V
CC
= 5V and Temperature = 25
°
C.
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
“Absolute Maximum Ratings” are those beyond which the safety
of the device cannot be guaranteed.
NC (Pin 1):
Not Connected.
R (Pin 2):
Receiver output. If the receiver output is enabled
(REB low), then if A > B by 200mV, R will be high. If A < B
by 200mV, then R will be low.
REB (Pin 3):
Receiver output enable. A low enables the
receiver output, R. A high input forces the receiver output
into a high impedance state.
DE (Pin 4):
Driver output enable. A high on DE enables the
driver outputs, A and B. A low input forces the driver
outputs into a high impedance state.
D (Pin 5):
Driver input. If the driver outputs are enabled
(DE high), then A low on D forces the driver outputs A low
and B high. A high on D will force A high and B low.
GND (Pin 6):
Ground Connection.
GND (Pin 7):
Ground Connection.
NC (Pin 8):
Not Connected.
Y (Pin 9):
Driver output.
Z (Pin 10):
Driver output.
B (Pin 11):
Receiver input.
A (Pin 12):
Receiver input.
NC (Pin 13):
Not Connected.
V
CC
(Pin 14):
Positive supply; 4.75V
≤
V
CC
≤
5.25V.
PIU
FU
U
C
U
S
O
TI
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC491IS#PBF 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 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-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2
LTC491IS#PBF 制造商:Linear Technology 功能描述:Driver/Receiver IC
LTC491IS#TR 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
LTC491IS#TRPBF 功能描述:IC TXRX RS485 LOW POWER 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):3/3 規(guī)程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
LTC491ISPBF 制造商:Linear Technology 功能描述:RS-485/RS-422 Driver/Receiver SOIC14
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