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參數(shù)資料
| 型號： | LTC1323 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Single 5V AppleTalk Transceiver |
| 中文描述： | 單5V的AppleTalk收發(fā)器 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 284K |
| 代理商： | LTC1323 |
9
LTC1323
SWITCHU
W
Figure 12. Single-Ended Receiver
1.5V
RXI, RXI
RXI
RXI
1.5V
V
OL
V
OH
V
IL
V
IH
V
V
IH
LTC1323 F12
t
PHL
0.8V
1.5V
t
PLH
2.4V
1.5V
f = 1MHz: t
r
≤
10ns: t
f
≤
10ns
Figure 13. Receiver Enable and Disable
1.5V
3V
0V
RXEN
f = 1MHz: t
r
≤
10ns: t
f
≤
10ns
1.5V
RXO, RXO, RXDO
V
OL
5V
t
ZL
t
LZ
0.5V
OUTPUT NORMALLY LOW
0V
LTC1323 F13
2.3V
2.3V
t
ZH
V
OH
OUTPUT NORMALLY HIGH
t
HZ
0.5V
RXO, RXO, RXDO
APPLICATIU
Functional Description
The “serial port” on the back of an Apple-compatible
computer or peripheral is a fairly versatile “multi-protocol”
connector. It must be able to connect to a wide bandwidth
LAN (an AppleTalk/LocalTalk network), which requires a
high speed differential transceiver to meet the AppleTalk
specification, and it must also be able to connect directly to
a printer or modem through a short RS232 style link. The
LTC1323 is designed to provide all the functions necessary
to implement such a port on a single chip. Two versions of
the LTC1323 are available: a 16-pin SO version which
provides the minimum solution for interfacing to an
AppleTalk network in a smaller package, and a larger 24-pin
SO Wide version which additionally includes all the hand-
shaking lines required to implement a complete AppleTalk/
modem/printer serial port. All LTC1323s run from a single
5V power supply while providing true single-ended com-
patibility, and include a 0.5
μ
A low power shutdown mode
U
W
U
to improve lifetime in battery-powered devices. The 24-
pin SO Wide version also includes a receiver keep-alive
mode for monitoring external signals while drawing 65
μ
A
typically.
The LTC1323 includes an RS422-compatible differential
driver/receiver pair for data transmission, with the driver
specified to drive 2V into the 100
primary of a typical
LocalTalk interface transformer/RFI interference network.
Either output of the differential RS422 driver can also act as
an single-ended driver, allowing the LTC1323 to commu-
nicate over a standard serial connection. The 24-pin SO
Wide LTC1323 also includes an extra single ended only
driver and two extra RS232-compatible single-ended re-
ceivers for handshaking lines. All versions include an on-
board charge pump to provide a regulated –5V supply
required for the single-ended drivers. The charge pump
can also provide up to 10mA of external load current to
power other circuitry.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1323CS | Single 5V AppleTalk Transceiver |
| LTC1323CSW | Single 5V AppleTalk Transceiver |
| LTC1324CN | Single Supply LocalTalk Transceiver |
| LTC1324CSW | Single Supply LocalTalk Transceiver |
| LTC1324 | Single Supply LocalTalk Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1323CS16 | 功能描述:IC TXRX EIA562 5V SINGLE 16-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 |
| LTC1323CS16#PBF | 功能描述:IC TXRX EIA562 5V SINGLE 16-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 |
| LTC1323CS16#TR | 功能描述:IC TXRX LOCALTALK/EIA562 16SOIC 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 |
| LTC1323CS16#TRPBF | 功能描述:IC TXRX EIA562 5V SINGLE 16-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:1,140 系列:AU 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:CAN 電源電壓:5.3 V ~ 27 V 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SO 包裝:管件 其它名稱:935267940512AU5790D14AU5790D14-ND |
| LTC1323CSW | 功能描述:IC TXRX EIA562 5V SINGLE 24-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 |
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