Maxim > 方案 > 超声
键控器
|
|
| 显示 |
标题/型号 |
关键优势 |
| QV PDF |
低电荷注入、16通道、高压模拟开关 MAX14800, MAX14801, MAX14802, MAX14803

| 具有低电荷注入、低电容和高速SPI接口,集成过压保护 |
| QV PDF |
低电荷注入、8通道、高压模拟开关,提供20MHz串行接口 MAX4800A, MAX4802A

| 该系列产品可提供低电荷注入、低电容特性和高速SPI接口 |
| QV PDF |
2线接口、低EMI键盘开关控制器/GPO MAX7359

| 低电压、低EMI、低电源电流按键开关控制器,可监测64个按键,无需外部元件 |
| QV PDF |
2线接口、低EMI键盘开关和发声控制器 MAX7347, MAX7348, MAX7349

| |
| Key Specifications:
Keyswitch Controllers |
| Part Number |
Interface |
Max. Keys |
I2C Interface Voltage |
Typ. Supply Current (µA) |
Typ. Shutdown Current (µA) |
INT Output |
Key Scan I2C Slave IDs |
Sounder I2C Slave IDs |
Sounder Output |
GPOs |
ALERT Input |
Supply Voltage (V) |
Package |
|
MAX7347
|
Serial 2-Wire 400kbit
|
24
|
2.4 to 5.5
|
75
|
7.5
|
Yes
|
4
|
4
|
Yes
|
6 + 1(INT)
|
Yes
|
2.4 to 3.6
|
QSOP/16
TQFN/16
|
|
MAX7348
|
Serial 2-Wire 400kbit
|
40
|
2.4 to 5.5
|
75
|
7.5
|
Yes
|
4
|
4
|
Yes
|
3 + 1(INT)
|
-
|
2.4 to 3.6
|
QSOP/20
|
|
MAX7349
|
Serial 2-Wire 400kbit
|
64
|
2.4 to 5.5
|
75
|
7.5
|
Yes
|
1
|
-
|
-
|
1 + 1(INT)
|
-
|
2.4 to 3.6
|
QSOP/24
TQFN/24
|
| See All Keyswitch Controllers (3) |
| Key Specifications:
Switches and Multiplexers (Low Voltage) |
| Part Number |
Configuration |
Number of Channels |
Normally (Open/Closed) |
VSUPPLY, Single (min) (V) |
VSUPPLY, Single (max) (V) |
VSUPPLY, Dual (min) (±V) |
VSUPPLY, Dual (max) (±V) |
Bandwidth (MHz) |
IL (OFF) (max) (nA) |
tON (max) (nS) |
tOFF (max) (nS) |
CON (pF) |
COFF (pF) |
|
MAX4800A
|
SPST
|
8
|
Open
|
40
|
200
|
40
|
100
|
20
|
2000
|
5,000
|
5,000
|
36
|
11
|
| See All Switches and Multiplexers (Low Voltage) (158) |
| Key Specifications:
Switches and Multiplexers (Mid Voltage) |
| Part Number |
Configuration |
Number of Channels |
Normally (Open/Closed) |
VSUPPLY, Single (min) (V) |
VSUPPLY, Single (max) (V) |
VSUPPLY, Dual (min) (±V) |
VSUPPLY, Dual (max) (±V) |
Bandwidth (MHz) |
IL (OFF) (max) (nA) |
tON (max) (nS) |
tOFF (max) (nS) |
CON (pF) |
COFF (pF) |
|
MAX4800A
|
SPST
|
8
|
Open
|
40
|
200
|
40
|
100
|
20
|
2000
|
5,000
|
5,000
|
36
|
11
|
|
MAX4802A
|
SPST
|
8
|
Open
|
40
|
200
|
40
|
100
|
20
|
2000
|
5,000
|
5,000
|
36
|
11
|
| See All Switches and Multiplexers (Mid Voltage) (297) |
|