参数资料
型号: MAX6954ATL+
厂商: Maxim Integrated
文件页数: 4/39页
文件大小: 0K
描述: IC DRVR DSPL LED 40-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
显示器类型: LED
配置: 7、14、16 段
接口: 4 线串行
电流 - 电源: 22mA
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(6x6)
包装: 管件
4-Wire Interfaced, 2.7V to 5.5V LED Display
Driver with I/O Expander and Key Scan
TIMING CHARACTERISTICS
(Typical Operating Circuits, V+ = 2.7V to 5.5V, T A = T MIN to T MAX , unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TIMING CHARACTERISTICS
CLK Clock Period
CLK Pulse Width High
CLK Pulse Width Low
CS Fall to CLK Rise Setup Time
CLK Rise to CS Rise Hold Time
DIN Setup Time
DIN Hold Time
t CP
t CH
t CL
t CSS
t CSH
t DS
t DH
38.4
16
16
9.5
0
9.5
0
ns
ns
ns
ns
ns
ns
ns
Output Data Propagation Delay
t DO
V+ = 3.0V to 5.5V
V+ = 2.7V
19
25
ns
DOUT Output Rise and Fall Times
Minimum CS Pulse High
t FT
t CSW
C LOAD = 10pF, V+ = 3.0V to 5.5V
19.5
10
ns
Note 1: All parameters tested at T A = +25°C. Specifications over temperature are guaranteed by design.
Typical Operating Characteristics
(V+ = 3.3V, LED forward voltage = 2.4V, typical application circuit, T A = +25°C, unless otherwise noted.)
INTERNAL OSCILLATOR FREQUENCY
INTERNAL OSCILLATOR FREQUENCY
INTERNAL OSCILLATOR WAVEFORM
4.4
vs. TEMPERATURE
R SET = 56k Ω
C SET = 22pF
4.4
vs. SUPPLY VOLTAGE
R SET = 56k Ω
C SET = 22pF
AT OSC AND OSC_OUT PINS
MAX6954 toc03
R SET = 56k Ω
C SET = 22pF
4.2
4.2
OSC
4.0
3.8
3.6
4.0
3.8
3.6
0V
OSC_OUT
0V
-40
-10
20
50
80
110
2.5
3.0
3.5
4.0
4.5
5.0
5.5
100ns/div
TEMPERATURE ( ° C)
SUPPLY VOLTAGE (V)
OSC: 500mV/div
OSC_OUT: 2V/div
4
_______________________________________________________________________________________
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