X9525 INTERSIL [Intersil Corporation], X9525 Datasheet - Page 2

• Manufacturer Part Number: X9525
• Description: Fiber Channel/Gigabit Etherner Laser Diode Control for Fiber Optic Modules
• Manufacturer: INTERSIL [Intersil Corporation]

PIN CONFIGURATION
PIN ASSIGNMENT
15, 16, 17,
4, 5, 14,
18, 19
Pin
10
11
12
13
20
1
2
3
6
7
8
9
A1, B1,
B2, B4,
C1, C2,
C3, D2
CSP
B3
A3
A4
D3
C4
D4
E4
E1
E3
E2
D1
A2
R
SCL
SDA
V
R
R
WP
NC
NC
Name
W2
A
H2
SS
SDA
R
SCL
V
L2
R
R
R
R
Vss
R
WP
NC
A
0
W1
CC
H2
w2
H1
L2
L1
0
2
20 Pin TSSOP
10
2
9
1
3
4
5
6
7
8
Connection to end of resistor array for (the 256 Tap) DCP 2.
Connection to terminal equivalent to the “Wiper” of a mechanical potentiometer for DCP 2.
Connection to other end of resistor array for (the 256 Tap) DCP 2.
Physical Device Address input. A match in the slave address serial data stream, and the
Physical Device Address input pin must be in order to initiate communication with the X9525.
A maximum of two (2) devices may occupy the same 2-wire serial bus.
Serial Clock. This is a TTL level compatible input pin used to control the serial bus timing for
data input and output.
Serial Data. SDA is a bidirectional TTL level compatible pin used to transfer data into and
out of the device. The SDA pin input buffer is always active (not gated). This pin requires an
external pull up resistor.
Ground.
Connection to other end of resistor for (the 100 Tap) DCP 1.
Connection to terminal equivalent to the “Wiper” of a mechanical potentiometer for DCP 1.
Connection to end of resistor array for (the 100 Tap) DCP 1.
Supply Voltage.
No Connect
Write Protect Control Pin. WP pin is a TTL level compatible input. When held HIGH, Write Pro-
tection is enabled. In the enabled state, this pin prevents all nonvolatile “write” operations. Al-
so, when the Write Protection is enabled, and the device Block Lock feature is active (i.e. the
Block Lock bits are NOT [0,0]), then no “write” (volatile or nonvolatile) operations can be per-
formed in the device (including the wiper position of any of the integrated Digitally Controlled
Potentiometers (DCPs). The WP pin uses an internal “pull-up” resistor, thus if left floating the
write protection feature is enabled.
20
19
18
17
16
15
14
13
12
11
V
NC
NC
NC
NC
NC
NC
R
R
R
CC
H1
W1
L1
NOT TO SCALE
X9525
A
B
C
D
E
R
V
NC
NC
NC
Function
SS
H1
Top View – Bumps Down
1
R
V
NC
NC
NC
2
W1
CC
CSP
R
R
R
NC
3
A
W2
H2
L1
0
SCL
SDA
R
WP
NC
4
L2
March 10, 2005
FN8210.0