STM7E1AR datasheet(1/16 Pages) STMICROELECTRONICS

部件名	STM7E1AR

功能描述	7 e 1 channels switch array

Download	16 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 16 page

November 2007

Rev 3

1/16

16

STM7E1

7 e 1 channels switch array

Features

■ Main switches max. RON less than 2 Ω

■ Provides 7 auxiliary switches with RON < 75 Ω

■ 6 VPP amplitude of analog input signal

■ Digital inputs are TTL levels compatible

Description

The STM7E1A consists of 7 identical ISDN E1

channels, each channel corresponding to 4 main

low-resistant switches (a and b) and 2 auxiliary

switches (c and d). The switches positions in all

the channels are identical and controlled by a

unique control resource driven by the digital

inputs Lm, Ls and Sc.

In each channel, the TX and RX lines can be

switched between a Main port or a Spare-port by

the main switches: if both "a" switches are closed

and both "b" switches are open, the Main port is

connected to the line, while if both "a" switches

are open and both "b' switches are closed, the

spare port is connected to the line.

The 2 auxiliary switches enable to close a local

loop between the TX and RX access of a port: if

"c" is closed, the Spare port RX and TX access is

connected between each other to form a local

loop, while if "d" is closed, the Main port RX and

TX access is connected between each other to

form a local loop.

The Spare port is only used for test purpose on

the system board while the Main port is the

communication channel. Consequently, a

switching from the Main port to the Spare port

occurs very rarely (<10 times a day).

The power supplies of the chip need to be de

coupled properly. This means that at least one

external capacitor C1 must be connected in

between GND and VPOS, one external capacitor

C2 between GND and VNEG, and one external

capacitor C3 between each pair of VNEG and

VPOS.

TQFP64

Table 1.

Device summary

Order code

Temperature range

Package

Packaging

STM7E1AR

-40 to 85 °C

TQFP64 (tape and reel)

1000 parts per reel

www.st.com

类似零件编号 - STM7E1AR

制造商	部件名	数据表	功能描述
STMicroelectronics	STM7E1AR	190Kb / 10P	7 E 1 CHANNELS SWITCH ARRAY December 2002

More results

类似说明 - STM7E1AR

制造商	部件名	数据表	功能描述
STMicroelectronics	STM7E1A	190Kb / 10P	7 E 1 CHANNELS SWITCH ARRAY December 2002
STMicroelectronics	TEA5115	118Kb / 10P	5 CHANNELS VIDEO SWITCH
NXP Semiconductors	CBTU02044	360Kb / 24P	High-speed two-differential channels 1-to-2 switch Rev.1.1-28 September2021
NXP Semiconductors	CBTU02044	352Kb / 23P	High-speed two-differential channels 1-to-2 switch Rev. 1.2 ??21 April 2022
STMicroelectronics	TEA5116	81Kb / 8P	5 CHANNELS VIDEO SWITCH
Taiwan Semiconductor Co...	TESDB5V0A	295Kb / 5P	5V, 2-Channels ESD Protection Array
	TESDB5V0A	224Kb / 4P	5V, 2-Channels ESD Protection Array
	TESDG5V0A	185Kb / 2P	5V, 2-Channels ESD Protection Array
	TESDG5V0A	241Kb / 4P	5V, 2-Channels ESD Protection Array
Global Mixed-mode Techn...	G2205	71Kb / 1P	76 Channels PMIC for DSC