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参数资料
| 型号： | MAX7219CNG |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER LED DISPLAY 8DGT 24DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 15 |
| 显示器类型： | LED |
| 配置： | 7 段 + DP |
| 接口： | 4 线串行 |
| 数字或字符： | 8 位数字 |
| 电流 - 电源： | 330mA |
| 电源电压： | 4 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 24-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 24-PDIP |
| 包装： | 管件 |
MAX7219/MAX7221
Serially Interfaced, 8-Digit LED Display Drivers
Pin Description
PIN
1
2, 3, 5–8,
10, 11
4, 9
12
13
14–17,
20–23
18
19
24
NAME
DIN
DIG 0–DIG 7
GND
LOAD
(MAX7219)
CS
(MAX7221)
CLK
SEG A–SEG G,
DP
ISET
V+
DOUT
FUNCTION
Serial-Data Input. Data is loaded into the internal 16-bit shift register on CLK’s rising edge.
Eight-Digit Drive Lines that sink current from the display common cathode. The MAX7219 pulls
the digit outputs to V+ when turned off. The MAX7221’s digit drivers are high-impedance when
turned off.
Ground (both GND pins must be connected)
Load-Data Input. The last 16 bits of serial data are latched on LOAD’s rising edge.
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.
Serial-Clock Input. 10MHz maximum rate. On CLK’s rising edge, data is shifted into the inter-
nal shift register. On CLK’s falling edge, data is clocked out of DOUT. On the MAX7221, the
CLK input is active only while CS is low.
Seven Segment Drives and Decimal Point Drive that source current to the display. On the
MAX7219, when a segment driver is turned off it is pulled to GND. The MAX7221 segment dri-
vers are high-impedance when turned off.
Connect to V DD through a resistor (R SET ) to set the peak segment current (Refer to Selecting
R SET Resistor and Using External Drivers section).
Positive Supply Voltage. Connect to +5V.
Serial-Data Output. The data into DIN is valid at DOUT 16.5 clock cycles later. This pin is used
to daisy-chain several MAX7219/MAX7221’s and is never high-impedance.
Functional Diagram
SEG A –SEG G, DP
SEGMENT DRIVERS
8
DIG 0 –DIG 7
DIGIT DRIVERS
SHUTDOWN REGISTER
8
SEGMENT
CURRENT
V+
R SET
CODE B
ROM WITH
BYPASS
8
8x8
MODE REGISTER
INTENSITY REGISTER
SCAN-LIMIT REGISTER
DISPLAY-TEST REGISTER
INTENSITY
PULSE-
WIDTH
MODULATOR
REFERENCE
LOAD (CS)
DUAL-PORT
SRAM
8
8
ADDRESS
REGISTER
DECODER
MULTIPLEX
SCAN
CIRCUITRY
4
DIN
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
DOUT
Maxim Integrated
CLK
( ) MAX7221 ONLY
(LSB)
(MSB)
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX7219CNG TUBE | 制造商:Maxim Integrated Products 功能描述:IC LED DISPLAY DRIVER7219 |
| MAX7219CNG+ | 功能描述:LED显示驱动器 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 |
| MAX7219CNG-T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| MAX7219CWG | 功能描述:LED显示驱动器 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 |
| MAX7219CWG TUBE | 制造商:Maxim Integrated Products 功能描述:LED DISPLAY DRIVER (TUBE QTY 30) |
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