参数资料
型号: IBM25405GP-3BA200C2
元件分类: 微控制器/微处理器
英文描述: RISC PROCESSOR, PBGA456
封装: PLASTIC, BGA-456
文件页数: 39/48页
文件大小: 649K
代理商: IBM25405GP-3BA200C2
PowerPC 405GP Embedded Controller
Data Sheet
Advance Information
IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
Page 44 of 48
galdsh5f
06/15/99 Preliminary
DQMCB
n/a
7
1.8
19
12
SysClk
2
ECC0:7
2
1
7
1.8
19
12
SysClk
2
MemAddr0:12
n/a
8.25
2
19
12
SysClk
1, 2
MemClkIn
n/a
tbd
MemClkOut0:1
n/a
1
0.5
19
12
SysClk
2
MemData0:31
2
1
7
1.8
19
12
SysClk
2
RAS
n/a
8.25
2
19
12
SysClk
1, 2
WE
n/a
8.25
2
19
12
SysClk
1, 2
External SLAVE Peripheral Interface
DMAAck0:3
n/a
8
2
12
8
PerClk
DMAReq0:3
18
1
n/a
PerClk
EOT0:3[TC0:3]
18
1
9.1
2
12
8
PerClk
PerAddr0:31
18
1
13
2
19
12
PerClk
PerBLast
18?
1
8?
2
12
8
PerClk
PerCS0
PerCS1:7[GPIO10:16]
9
2
12
8
PerClk
PerData0:31
8
1
15.4
2
19
12
PerClk
PerOE
n/a
8
2
12
8
PerClk
PerPar0:3
8
1
15.4
2
19
12
PerClk
PerR/W
18
1
8
2
12
8
PerClk
PerReady
9
1
n/a
PerClk
PerWBE0:3
18
1
8
2
12
8
PerClk
External MASTER Peripheral Interface
BusReq
10
1
12
8
PerClk
ExtAck
n/a
15
2
12
8
PerClk
ExtReq
19
1
n/a
PerClk
ExtReset
n/a
4
2
19
12
PerClk
HoldAck
n/a
12
2
12
8
PerClk
HoldPri
10
1
n/a
PerClk
HoldReq
10
1
n/a
PerClk
?
19
12
PerErr
9
1
n/a
PerClk
Internal Peripheral Interface
IICSCL
19
12
IICSDA
19
12
UART0_CTS
12
8
UART0_DCD
12
8
UART0_DSR
12
8
I/O Specications (Part 2 of 3)
Notes:
1. SDRAM command interface is a two-cycle path (first driven in cycle 1 and then sampled at SDRAMs in cycle 2)
2. Output timings are actually relative to a rising edge of the internal PLB bus clock, which is always an integer multiple of
SysClk. The on chip PLL maintains this internal clock such that it is rising edge aligned with SysClk. For this reason all
SDRAM output timings are shown relative to SysClk.
3. Asynchronous PCI timings at 66MHz maximum
Signal
Input (ns)
Output (ns)
Output Current (mA)
Clock
Notes
Setup Time
(minimum)
Hold Time
(minimum)
Valid Delay
(maximum)
50pF load
Hold Time
(minimum)
50 pF load
I/O H
(maximum)
I/O L
(minimum)
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