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PDF ( 数据手册 , 数据表 ) XE2476

零件编号 XE2476
描述 2400 bps Plug-In Upgrade to CH1776
制造商 xecom
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XE2476 数据手册, 描述, 功能
xecom
XE2476
3-8-94
2400 bps Plug-In Upgrade to CH1776
Description
Xecom's XE2476 is a low cost, 2400 bit per
second plug-in upgrade to the 1200 bps
CH1776. The XE2476 features the same
pin configuration, lead spacing and case size
as the CH1776. It also includes its own
user transferable FCC Part 68 registration.
Industry standard "AT" commands provide
modem control and configuration. The
XE2476 was specifically designed to provide
users of the CH1776 a quick, easy and low
cost upgrade to 2400 bits per second. Most
OEM's currently using the CH1776 can use
the XE2476 to upgrade their systems from
1200 bps to 2400 bps without alterring the
existing design.
Block Diagram
Features
• Supported Protocols: V.22bis, V.22, V.21,
Bell 212A and 103
• Pin compatible with the 1200bps CH1776
• Command set: "AT" command set for
modem control and configuration.
• Identical physical dimensions to CH1776:
2.00 inches long, 1.125 inches wide, 0.44
inches high.
• Single +5V supply
• Low power CMOS:
Operating: 250 mW (Typ.)
Sleep mode: 50 mW (Typ.)
PIN CONFIGURATION
/HS
/CMD
/AAD
/DCD
/DTR
D/V
OHO
RXD
TXD
TEST
SPK
VO
VI
1 18
2 17
3 16
4
5
6
7
XE2476
(Top View)
8
9
10
11
12
13
RI
GND
VCC
15 RING
14 TIP
Free Datasheet http://www.datasheet4u.com/







XE2476 pdf, 数据表
Electrical Specifications
ABSOLUTE MAXIMUM RATINGS*
SUPPLY VOLTAGE - Vcc
+6.5 Volts
DC INPUT VOLTAGE
-0.6 Volts to +6.5 Volts
STORAGE TEMPERATURE RANGE
-25° C TO +100° C
LEAD TEMPERATURE (Soldering, 2 sec per wave) 260° C
OPERATING TEMPERATURE RANGE
0 TO 70° C
*Exceeding these values may result in permanent damage to the device.
Power Supply Characteristics(TA = 0 - 70°C, Vcc = 5v ±5%)
Symbol Parameter Min Typ Max Units Comments
Vcc
Icc
Iccpd
Supply Voltage
Vcc Supply Current
Power Down Current
4.75
5.0 5.25
40
10
V
mA
mA
All outputs Disconnected
Power Management: The XE2476 has an integrated, advanced power management capability. If
no activity is detected on the RXD, DTR, or RI lines the modem will, within 5 seconds, automatically go
into a smart power down mode. In this mode power consumption is typically less than 50 milliwatts.
I/O Characteristics
Signals
DIGITAL INPUTS
/DTR, /RTS, TXD, RESET
Description
Input High
min. 2.0 V
Input Low
max. 0.8 V
DIGITAL OUTPUTS
OH, RI
/DCD, RXD
Output High
min. 2.4 V
min. 2.4 V
Output Low
max. 0.8 V
max. 0.4 V
Current Drive
15 ma
1.6 ma
8/XECOM
XE2476
Free Datasheet http://www.datasheet4u.com/














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