參數(shù)資料
型號: GL640USB-A
廠商: Electronic Theatre Controls, Inc.
英文描述: Pin Strip Header; No. of Contacts:36; Pitch Spacing:0.1"; No. of Rows:1; Contact Material:Copper Alloy; Contact Plating:Gold; Leaded Process Compatible:Yes; Mounting Type:PCB Straight Thru Hole; Peak Reflow Compatible (260 C):No RoHS Compliant: Yes
中文描述: 符合IEEE - 1284的USB橋接
文件頁數(shù): 6/39頁
文件大小: 2027K
代理商: GL640USB-A
Revision 1.1
Jun. 7, 1999
-5-
GL640USB, GL640USB-A
5
5
.
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Pin Descriptions
GL640USB
Pin No.
GL640USB-A
Pin No.
SYMBOL I/O
DESCRIPTION
1
43
CLKOUT
O Clock output to external device
The clock frequency is selected by setting DEVCTL register.
2
45
HRST
I High active hardware reset, internal pull low
With internal power-on reset circuit, this pin can be left unconnected or
pulled low.
3
47
WR#
O This active low signal indicates the EPP write operation.
4
48
WAIT#
I this signal acts as the acknowledge from external EPP device, internal
pull up
5-8
1-4
D0-D3
I/O Address/Data bus bit 0 to bit 3
9
5
DVCC
- Digital 5V input
10
6
DGND
- Digital ground
11-14
7-10
D4-D7
I/O Address/Data bus bit 4 to bit 7
15
11
VCP
- 3.3 V output. This output voltage is used to pull up D+ line to indicate
the full-speed device.
16
12
D+
I/O USB differential data
17
13
D-
I/O USB differential data
18
14
AVCC
- Analog 5V input
19
16
AGND
- Analog ground
20
17
GPI1
I General purpose input 1
21
20
GPI2
I General purpose input 2
22
21
GPI3
I General purpose input 3
23
22
X2
I/O Crystal output
24
24
X1
I 12/48 MHz crystal or external clock input
25
25
OSCSEL
I Oscillator Select, internal pull down
0=12MHz 1=48MHz
26
26
GPI4
I General purpose input 4, internal pull up
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