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參數資料
| 型號： | MAX6957ANI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 顯示驅動器 |
| 英文描述： | 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander |
| 中文描述： | LED DISPLAY DRIVER, PDIP28 |
| 封裝： | DIP-28 |
| 文件頁數： | 1/23頁 |
| 文件大小： | 333K |
| 代理商： | MAX6957ANI |
General Description
The MAX6957 compact, serial-interfaced LED display
driver general-purpose I/O (GPIO) peripheral provides
microprocessors with up to 28 ports. Each port is indi-
vidually user configurable to either a logic input, logic
output, or common-anode (CA) LED constant-current
segment driver. Each port configured as an LED seg-
ment driver behaves as a digitally controlled constant-
current sink, with 16 equal current steps from 1.5mA to
24mA. The LED drivers are suitable for both discrete
LEDs and CA numeric and alphanumeric LED digits.
Each port configured as a GPIO can be either a push-
pull logic output capable of sinking 10mA and sourcing
4.5mA, or a Schmitt logic input with optional internal
pullup. Seven ports feature configurable transition
detection logic, which generates an interrupt upon
change of port logic level. The MAX6957 is controlled
through an SPI-compatible 4-wire serial interface.
The MAX6957AAX and MAX6957AGL have 28 ports and
are available in 36-pin SSOP and 40-pin QFN packages,
respectively. The MAX6957AAI and MAX6957ANI have
20 ports and are available in 28-pin SSOP and 28-pin DIP
packages, respectively.
Applications
Set-Top Boxes
Panel Meters
White Goods
Automotive
Bar Graph Displays
Industrial Controllers
System Monitoring
Features
o
High-Speed 26MHz SPI-/QSPI-/MICROWIRE-
Compatible Serial Interface
o
2.5V to 5.5V Operation
o
-40°C to +125°C Temperature Range
o
20 or 28 I/O Ports, Each Configurable as
Constant-Current LED Driver
Push-Pull Logic Output
Schmitt Logic Input
Schmitt Logic Input with Internal Pullup
o
11μA (max) Shutdown Current
o
16-Step Individually Programmable Current
Control for Each LED
o
Logic Transition Detection for Seven I/O Ports
M
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port LED Display Driver and I/O Expander
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
V+
CS
SCLK
DIN
P31
P30
P22
P29
P28
P27
P26
P25
P24
P23
P21
P20
P19
P18
P17
P16
P15
P14
P13
P12
DOUT
GND
GND
ISET
SSOP/DIP
TOP VIEW
MAX6957
Pin Configurations
19-2429; Rev 0; 4/02
Typical Operating Circuit appears at end of data sheet.
Ordering Information
PART
TEMP RANGE
-40
°
C to +125
°
C
-40
°
C to +125
°
C
-40
°
C to +125
°
C
-40
°
C to +125
°
C
PIN-PACKAGE
28 DIP
28 SSOP
36 SSOP
40 QFN
MAX6957ANI
MAX6957AAI
MAX6957AAX
MAX6957AGL*
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
*
Future product—contact factory for availability.
Pin Configurations continued at end of data sheet.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX6957ANI+ | 功能描述:LED顯示驅動器 2.5-5.5V 20/28Port LED Display Driver RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MAX6957APL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6957ATL | 功能描述:LED顯示驅動器 RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MAX6957ATL+ | 功能描述:LED顯示驅動器 2.5-5.5V 20/28Port LED Display Driver RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| MAX6957ATL+T | 功能描述:LED顯示驅動器 2.5-5.5V 20/28Port LED Display Driver RoHS:否 制造商:Micrel 數位數量:5 片段數量: 安裝風格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
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