参数资料
型号: DS4550E+
厂商: Maxim Integrated Products
文件页数: 14/18页
文件大小: 0K
描述: IC I/O EXPANDER I2C 9B 20TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 74
接口: I²C,JTAG
输入/输出数: 9
中断输出:
频率 - 时钟: 400kHz
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 管件
包括: 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 (°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°C; TDI, TDO, TMS pins are no connects, unless otherwise noted.)
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