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參數資料
| 型號： | SCAN921025HSM |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | High Temperature 20-80 MHz 10 Bit Bus LVDS SerDes with IEEE 1149.1 (JTAG) and at-speed BIST |
| 中文描述： | LINE DRIVER, PBGA49 |
| 封裝： | BGA-49 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 527K |
| 代理商： | SCAN921025HSM |
SCAN921025H and SCAN921226H
High Temperature 20-80 MHz 10 Bit Bus LVDS SerDes
with IEEE 1149.1 (JTAG) and at-speed BIST
General Description
The SCAN921025H transforms a 10-bit wide parallel
LVCMOS/LVTTL data bus into a single high speed Bus
LVDS serial data stream with embedded clock. The
SCAN921226H receives the Bus LVDS serial data stream
and transforms it back into a 10-bit wide parallel data bus
and recovers parallel clock.
Both devices are compliant with IEEE 1149.1 Standard for
Boundary Scan Test. IEEE 1149.1 features provide the de-
sign or test engineer access via a standard Test Access Port
(TAP) to the backplane or cable interconnects and the ability
to verify differential signal integrity. The pair of devices also
features an at-speed BIST mode which allows the intercon-
nects between the Serializer and Deserializer to be verified
at-speed.
The SCAN921025H transmits data over backplanes or
cable. The single differential pair data path makes PCB
design easier. In addition, the reduced cable, PCB trace
count, and connector size tremendously reduce cost. Since
one output transmits clock and data bits serially, it eliminates
clock-to-data and data-to-data skew. The powerdown pin
saves power by reducing supply current when not using
either device. Upon power up of the Serializer, you can
choose to activate synchronization mode or allow the Dese-
rializer to use the synchronization-to-random-data feature.
By using the synchronization mode, the Deserializer will
establish lock to a signal within specified lock times. In
addition, the embedded clock guarantees a transition on the
bus every 12-bit cycle. This eliminates transmission errors
due to charged cable conditions. Furthermore, you may put
the SCAN921025H output pins into TRI-STATE to achieve a
high impedance state. The PLL can lock to frequencies
between 20 MHz and 80 MHz.
Features
n
High Temperature Operation to 125C
n
IEEE 1149.1 (JTAG) Compliant and At-Speed BIST test
mode.
n
Clock recovery from PLL lock to random data patterns.
n
Guaranteed transition every data transfer cycle
n
Chipset (Tx + Rx) power consumption
<
600 mW (typ)
@
80 MHz
n
Single differential pair eliminates multi-channel skew
n
800 Mbps serial Bus LVDS data rate (at 80 MHz clock)
n
10-bit parallel interface for 1 byte data plus 2 control bits
n
Synchronization mode and LOCK indicator
n
Programmable edge trigger on clock
n
High impedance on receiver inputs when power is off
n
Bus LVDS serial output rated for 27
load
n
Small 49-lead BGA package
Block Diagrams
20120701
October 2004
S
1
2004 National Semiconductor Corporation
DS201207
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| SCAN921226H | High Temperature 20-80 MHz 10 Bit Bus LVDS SerDes with IEEE 1149.1 (JTAG) and at-speed BIST |
| SCAN921226HSM | High Temperature 20-80 MHz 10 Bit Bus LVDS SerDes with IEEE 1149.1 (JTAG) and at-speed BIST |
| SCAN921025 | 30-80 MHz 10 Bit Bus LVDS Serializer and Deserializer with IEEE 1149.1 (JTAG) and at-speed BIST |
| SCAN921226 | 30-80 MHz 10 Bit Bus LVDS Serializer and Deserializer with IEEE 1149.1 (JTAG) and at-speed BIST |
| SCAN921025SLC | 30-80 MHz 10 Bit Bus LVDS Serializer and Deserializer with IEEE 1149.1 (JTAG) and at-speed BIST |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SCAN921025HSM/NOPB | 功能描述:LVDS 接口集成電路 High Tem 20MHz-80 MHz 10B Serializer RoHS:否 制造商:Texas Instruments 激勵器數量:4 接收機數量:4 數據速率:155.5 Mbps 工作電源電壓:5 V 最大功率耗散:1025 mW 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-16 Narrow 封裝:Reel |
| SCAN921025HSMX | 功能描述:LVDS 接口集成電路 RoHS:否 制造商:Texas Instruments 激勵器數量:4 接收機數量:4 數據速率:155.5 Mbps 工作電源電壓:5 V 最大功率耗散:1025 mW 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-16 Narrow 封裝:Reel |
| SCAN921025HSMX/NOPB | 功能描述:LVDS 接口集成電路 RoHS:否 制造商:Texas Instruments 激勵器數量:4 接收機數量:4 數據速率:155.5 Mbps 工作電源電壓:5 V 最大功率耗散:1025 mW 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-16 Narrow 封裝:Reel |
| SCAN921025SLC | 功能描述:LVDS 接口集成電路 RoHS:否 制造商:Texas Instruments 激勵器數量:4 接收機數量:4 數據速率:155.5 Mbps 工作電源電壓:5 V 最大功率耗散:1025 mW 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-16 Narrow 封裝:Reel |
| SCAN921025SLC/NOPB | 功能描述:LVDS 接口集成電路 RoHS:否 制造商:Texas Instruments 激勵器數量:4 接收機數量:4 數據速率:155.5 Mbps 工作電源電壓:5 V 最大功率耗散:1025 mW 最大工作溫度:+ 85 C 封裝 / 箱體:SOIC-16 Narrow 封裝:Reel |
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