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参数资料
| 型号： | MAX6951CEE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/19页 |
| 文件大小： | 0K |
| 描述： | IC DRVR DSPL LED SRL 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 显示器类型： | LED |
| 配置： | 7 段显示 |
| 接口： | 3 线串口 |
| 数字或字符： | 8 位数字 |
| 电流 - 电源： | 10mA |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-LSSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP 裸露焊盘 |
| 包装： | 带卷 (TR) |
Serially Interfaced, +2.7V to +5.5V,
5- and 8-Digit LED Display Drivers
Pin Description
PIN
1
2
3–6, 10–14
7
8
9
15
16
PAD
NAME
DIN
CLK
DIGX, SEGX
I SET
GND
OSC
CS
V+
Exposed pad
FUNCTION
Serial Data Input. Data is loaded into the internal 16–bit Shift register on CLK’s rising edge.
Serial-Clock Input. On CLK’s rising edge, data is shifted into the Internal Shift register. On CLK’s
falling edge, data is clocked out of DOUT. CLK input is active only while CS is low.
Digit X outputs sink current from the display common cathode when acting as digit drivers.
Segment X drivers source current to the display. Segment/digit drivers are high impedance when
turned off.
Current Setting. Connect to GND through a resistor (R SET ) to set the peak current. This resistor,
together with capacitor C SET , also sets the multiplex clock frequency.
Ground
Multiplexer Clock Input. A capacitor (C SET ) is connected to GND when the internal RC oscillator
multiplex clock is used. Resistor R SET (also used to set the peak current) and capacitor C SET
together set the multiplex clock frequency. When the external clock is used, OSC should be driven
by a 1MHz to 8MHz clock.
Chip-Select Input. Serial data is loaded into the Shift register while CS is low. The last 16 bits of
serial data are latched on CS ’s rising edge.
Positive Supply Voltage. Bypass to GND with a 0.1μF capacitor.
Exposed pad on package underside. Connect to GND.
Detailed Description
Differences Between
MAX6950 and MAX6951
The MAX6950 is a five-digit common-cathode display
driver. It drives five digits, with each digit comprising
eight LEDs with cathodes connected to a common
cathode. The display limit is therefore 40 LEDs or digit
segments.
The MAX6951 is an eight-digit common-cathode dis-
play driver. It drives eight digits, with each digit com-
prising eight LEDs. The only difference between the
MAX6950 and MAX6951 is that the MAX6950 is missing
three digit drivers. The MAX6950 can be configured to
scan eight digits, but if the last three digits are wired
up, they do not light.
The MAX6950/MAX6951 use a unique multiplexing
scheme to minimize the connections between the driver
and LED display. The scheme requires that the seg-
ment connections are different to each of the five
(MAX6950) or eight (MAX6951) digits (Table 1). This is
shown in the Typical Application Circuit , which uses
segments are wired with the common cathodes to fol-
low Table 1. The MAX6950/MAX6951 can drive multi-
digit LED displays that have the segments individually
pinned for each digit because then the digits can be
connected together correctly externally, just as if indi-
vidual digits were used.
Serial-Addressing Modes
The microprocessor interface on the MAX6950/
MAX6951 is a SPI-compatible 3-wire serial interface
using three input pins (Figure 1). This interface is used
to write configuration and display data to the MAX6950/
MAX6951. The serial interface data word length is 16
bits, which are labeled D15–D0 (Table 2). D15–D8 con-
tain the command address, and D7–D0 contain the
data. The first bit received is D15, the most-significant
bit (MSB). The three input pins are:
? CLK is the serial clock input, and may idle low or
high at the start and end of a write sequence.
? CS is the MAX6950/MAX6951s’ chip-select input,
and must be low to clock data into the MAX6950/
MAX6951.
single-digit type displays. The MAX6950/MAX6951 are
not intended to drive multidigit display types, which
have the segments internally wired together, unless the
?
DIN is the serial data input, and must be stable
when it is sampled on the rising edge of the clock.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6951EEE | 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6951EEE+ | 功能描述:LED显示驱动器 2.7-5.5V 5&8 Digit LED Display Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6951EEE+T | 功能描述:LED显示驱动器 2.7-5.5V 5&8 Digit LED Display Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6951EEE-T | 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube |
| MAX6951EVKIT | 功能描述:LED 照明开发工具 MAX6951 Evaluation Kit RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装: |
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