参数资料
| 型号： | SX1508IULTRT |
| 厂商： | Semtech |
| 文件页数： | 40/41页 |
| 文件大小： | 0K |
| 描述： | IC GPIO EXPANDER I2C 8CH 20QFN |
| 特色产品： | SX1508/SX1509 GPIO Expanders |
| 标准包装： | 1 |
| 接口： | I²C |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 1.2 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-UFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN-UT（3x3） |
| 包装： | 标准包装 |
| 包括： | LED 驱动器 / 小键盘引擎 |
| 其它名称： | SX1508IULDKR |
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ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
th Oct. 2009
8
www.semtech.com
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
2
ELECTRICAL CHARACTERISTICS
2.1
Absolute Maximum Ratings
Table below applies to SX1508 and SX1509. Stress above the limits listed in the following table may cause
permanent failure. Exposure to absolute ratings for extended time periods may affect device reliability. The
limiting values are in accordance with the Absolute Maximum Rating System (IEC 134). All voltages are
referenced to ground (GND).
Symbol
Description
Min
Max
Unit
Vmax_VDDM
Main supply voltage
- 0.4
3.7
V
Vmax_VCC1-2
Digital I/O pin supply voltage
- 0.4
3.7
V
Electrostatic handling HBM model
(1) (SX1508)
-
2000
VES_HBM
Electrostatic handling HBM model
(1) (SX1509)
-
1500
V
VES_CDM
Electrostatic handling CDM model
-
1000
V
Electrostatic handling MM model (SX1508)
-
200
VES_MM
Electrostatic handling MM model (SX1509)
-
150
V
TA
Operating ambient temperature range
-40
+85
°C
TC
Junction temperature range
-40
+125
°C
TSTG
Storage temperature range
-55
+150
°C
Ilat
Latchup-free input pin current
(2)
+/-100
-
mA
(1) Tested according to JESD22-A114A
(2) Static latch-up values are valid at maximum temperature according to JEDEC 78 specification
Table 5 - Absolute Maximum Ratings
2.2
Electrical Specifications
Table below applies to SX1508 and SX1509 with default registers values, unless otherwise specified. Typical
values are given for TA = +25°C, VDDM=VCC1=VCC2=3.3V.
Symbol
Description
Conditions
Min
Typ
Max
Unit
Supply
VDDM
Main supply voltage
-
1.425
-
3.6
V
VCC1,2
I/O banks supply voltage
-
1.2
-
3.6
V
Internal osc. OFF
-
1
5
Internal osc. ON (2MHz)
-
175
235
Main supply current
(SX1508, I
2C inactive)
External osc. (32kHz)
-
10
-
A
Internal osc. OFF
-
1
5
Internal osc. ON (2MHz)
-
365
460
IDDM
Main supply current
(SX1509, I
2C inactive)
External osc. (32kHz)
-
10
-
A
ICC1,2
I/O banks supply current
(1)
-
1
2
A
I/Os set as Input
VCC1,2 >= 2V
0.7*
VCC1,2
-
5.5
(8)
VIH
High level input voltage
VCC1,2 < 2V
0.8*
VCC1,2
-
5.5
(8)
V
VCC1,2 >= 2V
-0.4
-
0.3*
VCC1,2
VIL
Low level input voltage
VCC1,2 < 2V
-0.4
-
0.2*
VCC1,2
V
ILEAK
Input leakage current
Assuming no active
pull-up/down
-1
-
1
A
CI
Input capacitance
-
10
pF
I/Os set as Output
VOH
High level output voltage
-
VCC1,2
– 0.3
-
VCC1,2
V
VOL
Low level output voltage
-
-0.4
-
0.3
V
VCC1,2 >= 2V
-
8
(2)
IOH
High level output source current
VCC1,2 < 2V
-
2
(2)
mA
IOL
Low level output sink current
VCC1,2 >= 2V
-
15
(2)
mA
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