參數(shù)資料
型號(hào): MAX6954APL
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 顯示驅(qū)動(dòng)器
英文描述: 4-Wire Interfaced, 2.7V to 5.5V LED Display Driver with I/O Expander and Key Scan
中文描述: LED DISPLAY DRIVER, PDIP40
封裝: PLASTIC, DIP-40
文件頁(yè)數(shù): 17/38頁(yè)
文件大?。?/td> 395K
代理商: MAX6954APL
M
4-Wire Interfac ed, 2.7V to 5.5V LED Display
Driver with I/O Expander and K ey S c an
______________________________________________________________________________________
17
LED OUTPUT O0
LED OUTPUT O1
LED OUTPUT O2
LED OUTPUT O3
LED OUTPUT O4
LED OUTPUT O5
LED OUTPUT O6
LED OUTPUT O7
12.5
μ
s TO187.5
μ
s DIGIT PERIOD
1.6ms MULTIPLEX CYCLE 1
1.6ms MULTIPLEX CYCLE 2
1.6ms MULTIPLEX CYCLE 8
THE FIRST HALF OF A 25.6ms KEY-SCAN CYCLE
1.6ms MULTIPLEX CYCLE 8
THE SECOND HALF OF A 25.6ms KEY-SCAN CYCLE
1.6ms MULTIPLEX CYCLE 1
START OF NEXT KEY-SCAN CYCLE
FIRST TEST OF KEY SWITCHES
SECOND TEST OF KEY SWITCHES
INTERRUPT ASSERTED IF REQUIRED
DEBOUNCE REGISTER UPDATED
C
A
A
B
D
E
Figure 7. Key-Scanning Configuration
SW A0
SW A1
SW A2
SW A3
SW A4
SW A5
SW A6
SW A7
P0
V
CC
LED OUTPUT O0
LED OUTPUT O1
LED OUTPUT O2
LED OUTPUT O3
LED OUTPUT O4
LED OUTPUT O5
LED OUTPUT O6
LED OUTPUT O7
P1
P2
P3
P4
MICROCONTROLLER INTERRUPT
SW B0
SW B1
SW B2
SW B3
SW B4
SW B5
SW B6
SW B7
SW C0
SW C1
SW C2
SW C3
SW C4
SW C5
SW C6
SW C7
SW D0
SW D1
SW D2
SW D3
SW D4
SW D5
SW D6
SW D7
Figure 8. Key-Scan Timing Diagram
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PDF描述
MAX6954 Dual 4-Bit Decade And Binary Counters 16-CFP -55 to 125
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MAX6957 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander
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MAX6954ATL+T 功能描述:LED顯示驅(qū)動(dòng)器 2.7-5.5V LED Display Driver RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)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
MAX6954ATL-T 功能描述:LED顯示驅(qū)動(dòng)器 RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)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