参数资料
型号: IDT72V73263BB
厂商: IDT, Integrated Device Technology Inc
文件页数: 23/36页
文件大小: 0K
描述: IC DGTL SW 16384X16384 208-BGA
标准包装: 12
系列: 72V
类型: 多路复用器
电路: 8 x 1:1
电压电源: 单电源
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 208-BGA
供应商设备封装: 208-PBGA(17x17)
包装: 托盘
其它名称: 72V73263BB
3
INDUSTRIAL TEMPERATURERANGE
IDT72V73263 3.3V TIME SLOT INTERCHANGE
DIGITAL SWITCH WITH RATE MATCHING 16,384 x 16,384 CHANNELS
PIN DESCRIPTION
A0-A15
Address0-15
I
*See PBGA
Theseaddresslinesaccessallinternalmemories.
TableBelow
BEL
Byte Enable LOW
I
L4
In synchronous mode, this input will enable the lower byte (D0-7) on to the data bus.
C32i
Clock
I
A1
Serialclockforshiftingdatain/outontheserialdatastreams. Thisinputacceptsa
32.768MHz clock.
CS
Chip Select
I
E1
Active LOW input used by a microprocessor to activate the microprocessor port of the
device.
D0-15
DataBus0-15
I/O
*See PBGA
Thesepinsarethedatabusofthemicroprocessorport.
TableBelow
DS
DataStrobe
I
This active LOW input works in conjunction with CS to enable the read and write
D4
operations. ThisactiveLOWinputsetsthedatabuslines(D0-D15).
DTA/BEH
DataTransfer
I/O
Inasynchronousmodethispinindicatesthatadatabustransferiscomplete.Whenthe
Acknowledgment
K2
bus cycle ends,this pin drives HIGH and then High-Z allowing for faster bus cycles
Active LOW Output
with a weaker pull-up resistor. A pull-up resistor is required to hold a HIGH level
when the pin is High-Z. When the device is in /Byte Enable HIGH synchronous
bus mode, this pin acts as an input and will enable the upper byte (D8-15) on to the
databus.
F32i
FramePulse
I
B1
Thisinputacceptsandautomaticallyidentifiesframesynchronizationsignalsformatted
according to ST-BUS and GCI specifications.
GND
*See PBGA
Ground.
TableBelow
ODE
OutputDriveEnable
I
A3
Thisistheoutputenablecontrol fortheTXserialoutputs.WhenODEinputisLOWand
the OSB bit of the CR register is LOW, all TX outputs are in a High-Impedance state. If
this input is HIGH, the TX output drivers are enabled. However, each channel may
still be put into a High-Impedance state by using the per channel control bits in the
Connection Memory HIGH.
RX0-63
RX Input 0 to 63
I
*See PBGA
Serial data Input Stream. These streams may have data rates of 2.048Mb/s,
TableBelow
4.096Mb/s,8.192Mb/s,16.384Mb/s,or32.768Mb/sdependingupontheselectioninReceive
DataRateSelectionRegister(RDRSR).
RESET
Device Reset:
I
A2
This input (active LOW) puts the device in its reset state that clears the device internal
counters,registersandbringsTX0-63andmicroportdataoutputstoaHigh-Impedance
state. The RESET pin must be held LOW for a minimum of 20ns to reset the device.
R/W
Read/Write
I
E2
Thisinputcontrolsthedirectionofthedatabuslines(D0-D15)duringamicroprocessor
access.
S/A
Synchronous/
I
C1
Thisinputwillselectbetweenasynchronousmicroprocessorbustimingandsynchronous
Asynchronous
microprocessor bus timing. In synchronous mode, DTA/BEHacts as the BEH input and is
Bus Mode
used in conjunction with BELto output data on the data bus. In asynchronous bus mode,
BEL is tied LOW and DTA/BEH acts as the DTA, data bus acknowledgment output.
TCK
Test Clock
I
D2
Provides the clock to the JTAG test logic.
TDI
TestSerialDataIn
I
C3
JTAG serial test instructions and data are shifted in on this pin. This pin is pulled HIGH
by an internal pull-up when not driven.
TDO
TestSerialDataOut
O
D1
JTAG serial data is output on this pin on the falling edge of TCK. This pin is held in
High-ImpedancestatewhenJTAGscanisnotenabled.
TMS
TestModeSelect
I
C2
JTAGsignalthatcontrolsthestatetransitionsoftheTAPcontroller.Thispinispulled
HIGH by an internal pull-up when not driven.
TRST
TestReset
I
D3
AsynchronouslyinitializestheJTAGTAPcontrollerbyputtingitintheTest-Logic-
Reset state. This pin is pulled by an internal pull-up when not driven. This pin should
be pulsed LOW on power-up, or held LOW, to ensure that the device is in the normal
functionalmode.
SYMBOL
NAME
I/O
PBGA
DESCRIPTION
PIN NO.
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