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參數(shù)資料
| 型號： | PI6C180B |
| 廠商： | Pericom Semiconductor Corp. |
| 英文描述： | Precision 1-18 Clock Buffer |
| 中文描述： | 精密1-18時鐘緩沖器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 573K |
| 代理商： | PI6C180B |
PI6C180B
Precision 1-18 Clock Buffer
3
PS8468 05/03/00
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2-Wire I
2
C Control
The I
2
C interface permits individual enable/disable of each clock
output and test mode enable.
The PI6C180B is a slave receiver device. It can not be read back. Sub
addressing is not supported. All preceding bytes must be sent in
order to change one of the control bytes.
Every bite put on the SDATA line must be 8-bits long (MSB first),
followed by an acknowledge bit generated by the receiving device.
During normal data transfers SDATA changes only when SCLOCK
is LOW. Exceptions: A HIGH to LOW transition on SDATA while
SCLOCK is HIGH indicates a start condition. A LOW to HIGH
transition on SDATAwhile SCLOCK is HIGH is a stop condition
and indicates the end of a data transfer cycle.
Each data transfer is initiated with a start condition and ended with
a stop condition. The first byte after a start condition is always a
7-bit address byte followed by a read/write bit. (HIGH = read from
addressed device, LOW= write to addressed device). If the devices
own address is detected, PI6C180B generates an acknowledge by
pulling SDATA line LOW during ninth clock pulse, then accepts
the following data bytes until another start or stop condition is
detected.
Following acknowledgement of the address byte (D2), two more
bytes must be sent:
1. Command Code byte, and
2. Byte Count byte.
Although the data bits on these two bytes are dont care, they
must be sent and acknowledged.
Byte1: SDRAM Active/Inactive Register
(1 = enable, 0 = disable)
Byte2: Optional Register for Possible Future
Requirements (1 = enable, 0 = disable)
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature .............................................................–65°C to +150°C
Ambient Temperature with Power Applied ..............................–0°C to +70°C
3.3V Supply Voltage to Ground Potential .............................. –0.5V to +4.6V
DC Input Voltage .................................................................... –0.5V to +4.6V
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other conditions
above
those
indicated
sections of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
in
the
operational
Supply Current (V
DD
= +3.465V, C
LOAD
= Max.)
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| PI6C180V | 制造商:Pericom Semiconductor Corporation 功能描述:Clock Fanout Buffer 18-OUT 48-Pin SSOP Tube 制造商:Pericom Semiconductor Corporation 功能描述:EIGHTEEN DISTRIBUTED-OUTPUT CLOCK DRIVER, 48 Pin, Plastic, SSOP |
| PI6C180VE | 功能描述:時鐘緩沖器 Precision 1 18 時鐘緩沖器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
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