I2C and JTAG Nonvolatile 9-Bit I/O Expander Plus Memory _________________" />
鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� DS4550E+T&R
寤犲晢锛� Maxim Integrated Products
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 14/18闋�(y猫)
鏂囦欢澶у皬锛� 0K
鎻忚堪锛� IC I/O EXPANDER I2C 9B 20TSSOP
鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″锛� Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
妯�(bi膩o)婧�(zh菙n)鍖呰锛� 2,500
鎺ュ彛锛� I²C锛孞TAG
杓稿叆/杓稿嚭鏁�(sh霉)锛� 9
涓柗杓稿嚭锛� 鐒�
闋荤巼 - 鏅�(sh铆)閻橈細 400kHz
闆绘簮闆诲锛� 2.7 V ~ 5.5 V
宸ヤ綔婧害锛� -40°C ~ 85°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 20-TSSOP锛�0.173"锛�4.40mm 瀵級
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 20-TSSOP
鍖呰锛� 甯跺嵎 (TR)
鍖呮嫭锛� EEPROM
DS4550
I2C and JTAG Nonvolatile 9-Bit I/O
Expander Plus Memory
_____________________________________________________________________
5
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
DS4550
toc01
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(
A)
5
4.5
4
3.5
3
0.5
1
1.5
2
0
2.5
5.5
I/O0-I/O7 CONTROL BITS = 0
I/O0-I/O7 PULLUPS DISABLED
VCC = SDA = SCL = TCK
SUPPLY CURRENT
vs. TEMPERATURE
DS4550
toc02
TEMPERATURE (掳C)
SUPPLY
CURRENT
(
A)
80
60
40
20
0
-20
0.5
1
1.5
2
2.5
0
-40
VCC = SDA = SCL = 5.5V = TCK
VCC = SDA = SCL = 2.7V = TCK
I/O0-I/O7 CONTROL BITS = 0
I/O0-I/O7 PULLUPS DISABLED
SUPPLY CURRENT
vs. SCL FREQUENCY
DS4550
toc03
SCL FREQUENCY (kHz)
SUPPLY
CURRENT
(
A)
300
200
100
2
4
6
8
10
12
14
16
18
20
0
0400
VCC = SDA = TCK = 5.0V
VCC = SDA = TCK = 2.7V
SUPPLY CURRENT
vs. TCK FREQUENCY
DS4550
toc04
TCK FREQUENCY (kHz)
SUPPLY
CURRENT
(
A)
1750
1500
1250
1000
750
500
250
5
10
15
20
25
0
02000
VCC = 5.0V
VCC = 2.7V
SDA = SCL = VCC
I/O OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
DS4550
toc05
SUPPLY VOLTAGE (V)
I/O
OUTPUT
VOLTAGE
(V)
5
4
3
2
1
2
3
4
5
0
PULL-UPS ENABLED
PULL-DOWNS DISABLED
HIGH IMPEDANCE
EEPROM RECALL AT VPOR
Typical Operating Characteristics
(VCC = +5.0V, TA = +25掳C; TDI, TDO, TMS pins are no connects, unless otherwise noted.)
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