參數(shù)資料
型號: T7234
英文描述: Compliance with the New ETSI PSD Requirement
中文描述: 符合新的ETSI PSD的要求
文件頁數(shù): 75/116頁
文件大?。?/td> 1056K
代理商: T7234
Data Sheet
January 1998
T7256 Single-Chip NT1 (SCNT1) Transceiver
Lucent Technologies Inc.
71
Application Briefs
(continued)
Available Tools for Evaluation of the T7256
(continued)
IMPORTANT NOTE:
In order to use the SPEC_V2 with your product, you must adhere to the following guidelines:
I
Make sure none of the signals in the Signal Name column of Table 34 are hardwired to V
CC
or GND (with the
exception of GND
D
). If you need to tie any of these signals high or low, do it through a 5.1 k
resistor.
I
Make sure that circuitry on your board that is driving any of the Signal Name signals can be disabled (3-stated,
open collector output driver turned off, or signal trace cut, if necessary) when using the SPEC_V2.
Table 34. SPEC_V2 Interface Connector Pinouts
*
If RESET is not connected, the T7237/56 will not be RESET when exiting mode 2 or 3. If this is the case, the UUT must be powered down to
get the SCNT1 out of test mode.
J1
Pin
#
Signal
Name
SPEC_V2
Input/
Output
X
X
O
I
I
I
O
I
T7237/
56 Pin #
Notes
1
2
3
4
5
6
7
8
9
10
11
GND
D
GND
D
SCK
CKOUT
INT
SDO
SDI
PS1E
16
10
15
17
11
14
12
9
Connects to V
DDD
when interfacing to SCNT1-RDB.
PS1E becomes an output from T7237/56 in test mode.
Connects to PS2E (T7237/56 pin #8) when interfacing to
SCNT1_RDB.
12
13
14
TDMDI
SYN8K
I
7
4
O
Connects to ILOSS (T7237/56 pin #6) when interfacing to SCNT1-
RDB.
Recommended but not mandatory.*
HIGHZ becomes an output from T7237/56 in test mode.
15
16
RESET
HIGHZ
O
I
43
44
相關(guān)PDF資料
PDF描述
T7234A Compliance with the New ETSI PSD Requirement
T7237A Compliance with the New ETSI PSD Requirement
T7256A Compliance with the New ETSI PSD Requirement
T7288 CEPT/E1 Line Interface(CEPT/E1 線接口)
T7290A DS1/T1/CEPT/E1 Line Interface(DS1/T1/CEPT/E1 線接口)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
T7234A 制造商:AGERE 制造商全稱:AGERE 功能描述:Compliance with the New ETSI PSD Requirement
T7237 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Compliance with the New ETSI PSD Requirement
T7237A 制造商:AGERE 制造商全稱:AGERE 功能描述:Compliance with the New ETSI PSD Requirement
T7240 制造商:TE Connectivity 功能描述:
T7-241A5 功能描述:撥動(dòng)開關(guān) ON NONE OFF 2 Pole Standard Bat Handle RoHS:否 制造商:OTTO 觸點(diǎn)形式: 開關(guān)功能: 電流額定值: 電壓額定值 AC: 電壓額定值 DC: 功率額定值: 端接類型: 安裝風(fēng)格: 端子密封: 觸點(diǎn)電鍍: 照明: