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參數資料
| 型號： | W89C880F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 通信及網絡 |
| 英文描述： | 100Base-Tx/T4 Multiport Repeater Controller(100Base-Tx/T4多端口中繼器控制器) |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PQFP160 |
| 封裝： | PLASTIC, QFP-160 |
| 文件頁數： | 8/26頁 |
| 文件大?。?/td> | 313K |
| 代理商： | W89C880F |
W89C880F FastMPR
- 8 -
Pin Description, continued
SRAM INTERFACE PINS
NAME
SA<16:0>
NO.
36,
34
27,
25
18
I/O
O/L
DESCRIPTION
SRAM Address Bus. The FastMPR supports different SRAM sizes
for buffer use, including 32 KB
×
8, 64 KB
×
8, and 128 KB
×
8.
SA15, SA16 must be kept low when these two address pins are
not used.
SRAM Data Bus.
SD<7:0>
49
46,
44
41
37
I/O/L
CS0
O/L
SRAM Chip Select 0. This pin is used to enable the Bank 0
SRAM.
SRAM Chip Select 1. This pin is used to enable the Bank 1
SRAM.
SRAM Read command.
CS1
38
O/L
MSRD
39
O/L
MSWR
40
O/L
SRAM Write command.
MISCELLANEOUS
FastMPR RESET. This pin is active low. It needs a minimum 50
μ
S reset pulse width, when V
DD
is valid and stable.
Test Pin. Set this pin to enter test mode.
POWER/GROUND PINS
Digital Power Supply.
RESET
160
I
TEST
159
I
DV
DD
15, 63,
107, 131
17, 61,
104, 141
92, 100
95, 98
78, 122
87, 136
146
156
3, 10
7, 12
55
71
26, 45
35, 50
DV
SS
Digital Ground.
V
DD
V
SS
V
DD
V
SS
V
DD
V
SS
V
DD
V
SS
V
DD
V
SS
V
DD
V
SS
MII Bus Power Supply.
MII Bus Ground.
MII Port Interface Power Supply.
MII Port Interface Ground.
LED Interface Power Supply.
LED Interface Ground.
Inter-FastMPR interface Power Supply.
Inter-FastMPR interface Ground.
Extension port Power Supply.
Extension port Ground.
SRAM Interface Power Supply.
SRAM Interface Ground.
Note:
"I" means input, "O" means output, "H" means 24 mA high drive/sink cell, "L" means 4 mA low drive/sink cell, and "Z" means high-
impedance.
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