2 FN7905.0 August 19, 2011 Block Diagram POWER UP INTERFACE CONTROL AND STATUS LOGIC I/O BLOCK V
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� ISL23448WFRZ-T7A
寤犲晢锛� Intersil
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 12/21闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC DGTL POT 4CH 10K 20QFN
鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� Solutions for Industrial Control Applications
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 1
绯诲垪锛� XDCP™
鎺ョ墖锛� 128
闆婚樆锛堟瓙濮嗭級锛� 10k
闆昏矾鏁�(sh霉)锛� 4
婧害绯绘暩(sh霉)锛� 妯�(bi膩o)婧�(zh菙n)鍊� 125 ppm/°C
瀛樺劜(ch菙)鍣ㄩ鍨嬶細 鏄撳け
鎺ュ彛锛� 4 绶� SPI锛堣姱鐗囬伕鎿囷級
闆绘簮闆诲锛� 1.2 V ~ 5.5 V锛�1.7 V ~ 5.5 V
宸ヤ綔婧害锛� -40°C ~ 125°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 20-VFQFN 瑁搁湶鐒婄洡
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 20-QFN锛�3x4锛�
鍖呰锛� 妯�(bi膩o)婧�(zh菙n)鍖呰
鍏跺畠鍚嶇ū锛� ISL23448WFRZ-T7ADKR
ISL23448
2
FN7905.0
August 19, 2011
Block Diagram
POWER UP
INTERFACE
CONTROL
AND
STATUS
LOGIC
I/O
BLOCK
VCC
GND
SDI
SDO
SCK
VLOGIC
LEVEL
SHIFTER
WR0
VOLATILE
REGISTER
WR1
VOLATILE
REGISTER
WR2
VOLATILE
REGISTER
WR3
VOLATILE
REGISTER
RH0
RW0
RL0
RH1
RW1
RL1
RH2
RW2
RL2
RH3
RW3
RL3
CS
Pin Configurations
ISL23448
(20 LD TSSOP)
TOP VIEW
ISL23448
(20 LD QFN)
TOP VIEW
11
12
13
14
15
16
17
18
20
19
10
9
8
7
6
5
4
3
2
1
RL0
RW0
VCC
RH0
RL1
RW1
GND
RH1
VLOGIC
SDI
RL3
RH3
RL2
RW2
RW3
RH2
SCK
SDO
GND
CS
V
LO
GIC
RW1
SCK
RH2
SD
I
CS
RL
0
RW
0
RL
3
GND
RL2
RH0
RW2
RW
3
VCC
RL1
RH1
SDO
1
2
3
4
5
78
9
10
15
14
13
12
11
20
19
18
17
6
GND
6
RH3
16
Pin Descriptions
TSSOP
QFN
SYMBOL
DESCRIPTION
1
19
RL0
DCP0 鈥渓(f膩)ow鈥� terminal
2
20
RW0
DCP0 wiper terminal
31
VCC
Analog power supply.
Range 1.7V to 5.5V
42
RH0
DCP0 鈥渉igh鈥� terminal
5
3
RL1
DCP1 鈥渓(f膩)ow鈥� terminal
6
4
RW1
DCP1 wiper terminal
75
RH1
DCP1 鈥渉igh鈥� terminal
8, 12
6, 10
GND
Ground pin
97
VLOGIC
SPI bus/logic supply
Range 1.2V to 5.5V
10
8
SDI
Logic Pin - Serial bus data input
11
9
CS
Logic Pin - Active low chip select
13
11
SDO
Logic Pin - Serial bus data output
(configurable)
14
12
SCK
Logic Pin - Serial bus clock input
15
13
RH2
DCP2 鈥渉igh鈥� terminal
16
14
RW2
DCP2 wiper terminal
17
15
RL2
DCP2 鈥渓(f膩)ow鈥� terminal
18
16
RH3
DCP3 鈥渉igh鈥� terminal
19
17
RW3
DCP3 wiper terminal
20
18
RL3
DCP3 鈥渓(f膩)ow鈥� terminal
鐩搁棞(gu膩n)PDF璩囨枡
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