Datasheet > MAX1234EGI+

MAX1234EGI+

更新时间： 2024-11-23 20:02:19

品牌	Logo	应用领域
美信 - MAXIM		商用集成电路
页数	文件大小	规格书
44页	371K
描述
Consumer Circuit, 5 X 5 MM, ROHS COMPLIANT, QFN-28

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MAX1234EGI+ 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	28
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
风险等级：	5.67	商用集成电路类型：	CONSUMER CIRCUIT
JESD-30 代码：	S-XQCC-N28	长度：	5 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	28	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	NOT SPECIFIED
认证状态：	Not Qualified	座面最大高度：	0.9 mm
最大供电电压 (Vsup)：	5.25 V	最小供电电压 (Vsup)：	4.75 V
表面贴装：	YES	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	5 mm	Base Number Matches：	1

MAX1234EGI+ 数据手册

19-2512; Rev 4; 3/08

1ꢀ5k ꢁEDꢂ-rotected TouchꢂEcreen

Controllers Include DAC and Keypad Controller

/MAX1234

General Description

Features

The MAX1233/MAX1234 are complete PDA controllers in

5mm × 5mm, 28-pin QFN and TQFN packages. They fea-

ture a 12-bit analog-to-digital converter (ADC), low on-

resistance switches for driving resistive touch screens, an

internal +1.0V/+2.5V or external reference, 2°C accu-

rate, on-chip temperature sensor, direct +6V battery mon-

itor, keypad controller, 8-bit digital-to-analog converter

(DAC), and a synchronous serial interface. Each of the

keypad controllers’ eight row and column inputs can be

reconfigured as general-purpose parallel I/O pins (GPIO).

All analog inputs are fully ESD protected, eliminating the

need for external TransZorb^™devices.

♦ ESD-Protected Analog Inputs

15kV IEC 1000-4-2 Air-Gap Discharge

8kV IEC 1000-4-2 Contact Discharge

♦ Single-Supply Operation

+2.7V to +3.6V (MAX1233)

+4.75V to +5.25V (MAX1234)

♦ 4-Wire Touch-Screen Interface

♦ Internal +1.0V/+2.5V Reference or External

Reference (+1.0V to AV

)

♦ SPI^™/QSPI^™/MICROWIRE^™-Compatible 10MHz

Serial Interface

The MAX1233/MAX1234 offer programmable resolution

and sampling rates. Interrupts from the devices alert the

host processor when data is ready, when the screen is

touched, or a key press is detected. Software-

configurable scan control and internal timers give the user

flexibility without burdening the host processor. These

devices consume only 260µA at the maximum sampling

rate of 50ksps. Supply current falls to below 50µA for

sampling rates of 10ksps. The MAX1233/MAX1234 are

guaranteed over the -40°C to +85°C temperature range.

♦ 12-Bit, 50ksps ADC Measures

Resistive Touch-Screen Position and Pressure

Two Auxiliary Analog Inputs

Two Battery Voltages (0.5V to 6V)

On-Chip Temperature

♦ 8-Bit DAC for LCD Bias Control

♦ 4 × 4 Keypad Programmable Controller Offers Up

to Eight GPIO Pins

♦ Automatic Detection of Screen Touch, Key Press,

Applications

and End of Conversion

Personal Digital Assistants

♦ Programmable 8-, 10-, 12-Bit Resolution

♦ Programmable Conversion Rates

♦ AutoShutdown^™Between Conversions

Pagers

Touch-Screen Monitors

Cellular Phones

♦ Low Power

MP3 Players

260µA at 50ksps

50µA at 10ksps

6µA at 1ksps

Portable Instruments

Point-of-Sale Terminals

0.3µA Shutdown Current

-in Configuration

♦ 28-Pin 5mm × 5mm QFN and TQFN Packages

TOP VIEW

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

21 C4

20 C3

19 C2

18 C1

17 R1

16 R2

15 R3

MAX1233EGI

MAX1233ETI

MAX1234EGI

MAX1234ETI

-40°C to +85°C 28 QFN (5mm x 5mm)

-40°C to +85°C 28 TQFN (5mm x 5mm)

-40°C to +85°C 28 QFN (5mm x 5mm)

-40°C to +85°C 28 TQFN (5mm x 5mm)

*X+

*Y+

*X-

MAX1233

MAX1234

*Y-

GND

TransZorb is a trademark of General Semiconductor Industries, Inc.

SPI and QSPI are trademarks of Motorola, Inc.

QFN/TQFN

MICROWIRE is a trademark of National Semiconductor Corp.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

*PIN INCLUDES 8kV/15kV ESD PROTECTION.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...44

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与MAX1234EGI+相关器件

型号	品牌	获取价格	描述	数据表
MAX1234EGI-T	MAXIM	获取价格	Consumer Circuit, 5 X 5 MM, 0.80 MM HEIGHT, QFN-28
MAX1234ETI	MAXIM	获取价格	【15kV ESD-Protected Touch-Screen Controllers
MAX1234EVKIT	MAXIM	获取价格	Evaluation System/Evaluation Kit for the MAX1233/MAX1234
MAX1234EVKIT\|MAX1234EVC16	MAXIM	获取价格	Evaluation System/Evaluation Kit for the MAX1233/MAX1234
MAX1234EVSYS	MAXIM	获取价格	Evaluation System/Evaluation Kit for the MAX1233/MAX1234
MAX1236	MAXIM	获取价格	2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
MAX1236	ADI	获取价格	2.7V至3.6V和4.5V至5.5V、低功耗、4/12通道、2线串口、12位ADC
MAX1236_09	MAXIM	获取价格	2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
MAX1236EUA	MAXIM	获取价格	2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
MAX1236EUA+	MAXIM	获取价格	2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs

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