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| 型號： | XRT83VSH28IB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 50/75頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU SH E1 OCTAL 225BGA |
| 標(biāo)準(zhǔn)包裝： | 84 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動器/接收器數(shù)： | 8/8 |
| 規(guī)程： | T1，E1，J1 |
| 電源電壓： | 3.14 V ~ 3.47 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 225-BGA |
| 供應(yīng)商設(shè)備封裝： | 225-BGA（19x19） |
| 包裝： | 托盤 |
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XRT83VSH28
51
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
REV. 2.0.0
5.7
MICROPROCESSOR INTERFACE TIMING - MCP860 SYNCHRONOUS MODE
In MPC86x mode the active signals are ADDR[17:0], DATA[7:0], CS, RW, WE, DBEN, TA and PCLK. In this
mode all input signals are sampled by the PCLK. For all inputs minimum setup time is 4ns and minimum hold
time is 3ns. Maximum PCLK frequency is 70 MHz.
A READ cycle starts with RW being 'HIGH' and assertion of CS, address is assumed to be stable at this time
since CS is usually derived from the decoding the address bus.
Following falling edge of CS, DBEN is asserted for the READ operation. DBEN must remain asserted until TA
is asserted by the XRT86SH221 device, which indicates DATA from the addressed location is available on the
data bus. DBEN and CS can be de-asserted when the data has been read by the processor. WE should be high
during the entire read cycle.
Operation with wait-states is also possible, provided the wait is longer than the minimum cycle time. Use of TA
is recommended for timing efficiency since the read cycle time can vary depending on the internal address
location being accessed.
WRITE operation is identical to read operation except that the cycle starts with RW being 'LOW', followed by
CS assertion further followed by assertion of WE. Data to be written at the addressed location should be valid
on the data bus at the time WE is asserted. WE should remain asserted until TA is asserted by the
XRT86SH221 device. Following assertion of TA WE and CS may be de-asserted. DBEN should be high during
the entire write cycle.
FIGURE 36. MPC86X MODE TIMING - WRITE OPERATION
Table 18
MPC86X Mode Timing - Write Operation
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 1.8V±5%, unless otherwise specified
Timing
Description
Min.
Typ.
Max.
Units
t23
R/W "Low" to rising edge of PCLK set-up time (Write
Operation)
5-
-
ns
t24
CS "Low" to rising edge of PCLK set-up time
4-
-
ns
t25
Rising edge of PCLK to RDY “High”delay
4-
-
ns
1
10
9
8
7
6
5
4
3
2
PClk
R/W
WE
D[7:0]
OE
RDY
8 PClk Cycles
NOTE: PClk = 33Mhz
A[17:0]
CS
After 1 PClk Cycle
t23
t24
t25
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT83VSH28IB-F | 功能描述:外圍驅(qū)動器與原件 - PCI 8 Channel 1.8V-3.3V temp -45 to 85C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT83VSH28IB-F | 制造商:Exar Corporation 功能描述:T1/E1 LIU IC |
| XRT83VSH314 | 制造商:EXAR 制造商全稱:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT |
| XRT83VSH314ES | 功能描述:外圍驅(qū)動器與原件 - PCI 14 CHT1/E1LIUSH LOW COST VERSION RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT83VSH314IB | 功能描述:接口 - 專用 14 CH, SH T1/E1 1.8V DGTL/3.3V ANLG RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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