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參數(shù)資料
| 型號(hào)： | PC755 |
| 廠商： | Atmel Corp. |
| 英文描述： | PowerPC 755/745 RISC Microprocessor |
| 中文描述： | RISC微處理器PowerPC的745分之755 |
| 文件頁數(shù)： | 15/50頁 |
| 文件大?。?/td> | 1064K |
| 代理商： | PC755 |
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15
PC755/745
2138D–HIREL–06/03
Figure 5 shows the allowable undershoot and overshoot voltage on the PC755 and
PC745.
Figure 5.
Overshoot/Undershoot Voltage
The PC755 provides several I/O voltages to support both compatibility with existing sys-
tems and migration to future systems. The PC755 core voltage must always be provided
at nominal 2.0V (see Table 5 for actual recommended core voltage). Voltage to the L2
I/Os and Processor Interface I/Os are provided through separate sets of supply pins and
may be provided at the voltages shown in Table 4. The input voltage threshold for each
bus is selected by sampling the state of the voltage select pins BVSEL and L2VSEL dur-
ing operation. These signals must remain stable during part operation and cannot
change. The output voltage will swing from GND to the maximum voltage applied to the
OV
DD
or L2OV
DD
power pins.
Table 4 describes the input threshold voltage setting.
Notes:
1. Caution: The input threshold selection must agree with the OV
DD
/L2OV
DD
voltages supplied.
2. The input threshold settings above are different for all revisions prior to Rev. 2.8 (Rev. E). For more information, contact your
local Atmel sales office.
(L2) OVDD +20%
(L2) OVDD +5%
(L2) OVDD
Gnd - 1.0V
Gnd - 0.3V
Gnd
V
IH
Not to exceed 10%
of t
SYSCLK
V
IL
Table 4.
Input Threshold Voltage Setting
Part Revision
BVSEL Signal
Processor Bus Interface Voltage
L2VSEL Signal
L2 Bus Interface Voltage
E
0
Not Available
0
Not Available
1
2.5V/3.3V
1
2.5V/3.3V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PC755M8 | PC755M8 [Updated 6/03. 35 Pages] 32-bit RISC PowerPC-based Multichip Module |
| PC755CMGHU300LE | PowerPC 755/745 RISC Microprocessor |
| PC755CMGHU350LE | PowerPC 755/745 RISC Microprocessor |
| PC755CMGHU366LE | PowerPC 755/745 RISC Microprocessor |
| PC755CMGHU400LE | PowerPC 755/745 RISC Microprocessor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PC755BMGH300LE | 制造商:e2v technologies 功能描述:POWERPC 755 32-BIT RISC MICROPROCESSOR - 300MHZ, 2.0V, HITCE, MIL TEMP 制造商:e2v technologies 功能描述:PC755BMGH300LE - Trays |
| PC755BMGH350LE | 制造商:e2v technologies 功能描述:POWERPC 755 32-BIT RISC MICROPROCESSOR - 350MHZ, 2.0V, HITCE, MIL TEMP 制造商:e2v technologies 功能描述:PC755BMGH350LE - Trays |
| PC755BMGH366LE | 制造商:e2v technologies 功能描述:MPU RISC 32BIT 0.22UM 366MHZ 2.5V/3.3V 360HITCE CBGA - Trays |
| PC755BMGSU300LE | 制造商:e2v Aerospace & Defense 功能描述:300MHZ, 2.0V, CICGA, MIL TEMP |
| PC755BMGU300LE | 制造商:e2v technologies 功能描述:PC755BMGU300LE - Trays |
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