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參數資料
型號: W99681CF
廠商: WINBOND ELECTRONICS CORP
英文描述: JPEG USB Dual Mode Camera Chip(運用JPEG壓縮技術、通用串行總線結構技術、雙制式的照相電路數字處理芯片的攝像照相機接口控制器)
中文描述: JPEG格式相機的USB雙模芯片(運用的JPEG壓縮技術,通用串行總線結構技術,雙制式的照相電路數字處理芯片的攝像照相機接口控制器)
文件頁數: 11/78頁
文件大小: 816K
代理商: W99681CF
W99681CF
Publication Release Date: March 2000
- 11 - Revision A1
4 PIN DESCRIPTION
The following signal types are used in these descriptions.
U
B
O
AIO
P
G
#
Input pin
Input pin with internal pull-up resistor
Bi-directional input/output pin
Output pin
Analog input/output pin
Power supply pin
Ground pin
Active low
4.1 Pin Definition
USB and External Transceiver Interface (8 pins)
Pin Name
Pin Number
Type
Description
DM
50
AIO
Data Minus line of differential USB upstream port.
DP
51
AIO
Data Plus line of differential USB upstream port.
Note: provide an external 1.5 K
pull-up resistor at DP so the
device indicates to the host that it is a full-speed device.
VM
53
U
Single-ended Receiver Input of the data minus line.
VP
54
U
Single-ended Receiver Input of the data plus line.
RCV
55
U
Differential Receiver Input.
TOE#
57
O
Output Enable for external transceiver.
VMO
58
O
Data Minus Output to the differential driver.
VPO
59
O
Data Plus Output to the differential driver.
DRAM Interface (37 pins)
Pin Name
Pin Number
Type
Description
MD[15:0]
92-95, 97-106,
109-110
B
Data Bus.
MA[10:0]
65-68, 70, 72-
77
O
Address Bus.
Note: for SDRAM, MA[10:0] are sampled during the ACTIVE
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