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參數(shù)資料
| 型號： | SY87701ALZG TR |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 6/15頁 |
| 文件大小： | 0K |
| 描述： | IC CLOCK/DATA RECOVERY 28-SOIC |
| 標準包裝： | 1,000 |
| 系列： | AnyRate® |
| 類型： | 時鐘和數(shù)據(jù)恢復(fù)（CDR），多路復(fù)用器 |
| PLL： | 是 |
| 主要目的： | 以太網(wǎng)，SONET/SDH，ATM 應(yīng)用 |
| 輸入： | PECL |
| 輸出： | PECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:3 |
| 差分 - 輸入:輸出： | 是/是 |
| 頻率 - 最大： | 1.3Gbps |
| 電源電壓： | 3.15 V ~ 3.45 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | SY87701ALZGTR SY87701ALZGTR-ND |
MCP7940X
DS25009C-page 14
2011 Microchip Technology Inc.
is cleared in software.
ALMxC2:0: These Configuration bits determine
the alarm match. The logic will trigger the alarm
based on one of the following match conditions:
The 12/24-hour bits 0xCh.6 and 0x13h.6 are cop-
ies of the bit in 0x02h.6. The bits are read-only.
0x18h-0x1Bh are used for the timesaver function.
These registers are loaded at the time when VCC fails
and the RTCC operates on the VBAT. The VBAT bit is
also set at this time. These registers are cleared when
the VBAT bit is cleared in software.
0x1Ch-0x1Fh are used for the timesaver function.
These registers are loaded at the time when VCC is
restored and the RTCC switches to VDD. These
registers are cleared when the VBAT bit is cleared in
software.
5.2
FEATURES
5.2.1
UNLOCK SEQUENCE
The unique ID location is user accessible by using the
unlock ID sequence.
The unique ID location is 64-bits (8 bytes) and is
stored in EEPROM locations 0xF0 to 0xF7. This
location can be read at any time, however, a write is
inhibited until unlocked.
To unlock the write access to this location the following
sequence must be completed:
A single write of 0x55h to address 0x09. Stop
A single write of 0xAAh to address 0x09. Stop
This will allow the unique EEPROM locations to be
written.
After the byte or page write to these locations, the
write sequence is initiated by the Stop condition. At
this time, the ID locations are locked and no further
writes are possible to this location unless a complete
unlock sequence is repeated.
000 – Seconds match
001 – Minutes match
010 – Hours match (takes into account 12/24
hour)
011 – Matches the current day, interrupt at
12.00.00 a.m. Example: 12 midnight on
100
–Date
101
– RESERVED
110
– RESERVED
111
– Seconds, Minutes, Hour, Day, Date,
Month
Note:
It is strongly recommended that the
timesaver function only be used when the
oscillator is running. This will ensure
accurate functionality.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY87701ALZI | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V 28Mbps to 1.3Gbps AnyRate Clock and Data Recovery |
| SY87701L | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V 32-1250Mbps AnyRate CLOCK AND DATA RECOVERY Use lower-power SY87701AL for new designs |
| SY87701L_06 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V 32-1250Mbps AnyRate CLOCK AND DATA RECOVERY |
| SY87701L_11 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V 32-1250Mbps AnyRate CLOCK AND DATA RECOVERY Use lower-power SY87701AL for new designs |
| SY87701LGI | 制造商:Micrel Inc 功能描述: |
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