參數(shù)資料
型號: MAX6851AEE-T
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 顯示控制器
英文描述: 2-Wire Interfaced, 7-, 14-, and 16-Segment Alphanumeric Vacuum-Fluorescent Display Controller
中文描述: FLUORESCENT DSPL CTRL, PDSO16
封裝: 0.150 INCH, 0.635 MM PITCH, QSOP-16
文件頁數(shù): 37/37頁
文件大小: 493K
代理商: MAX6851AEE-T
MAX6851
2-Wire Interfaced, 7-, 14-, and 16-Segment Alpha-
numeric Vacuum-Fluorescent Display Controller
_______________________________________________________________________________________
9
blanking, and disables the tube driver in shutdown. The
controller multiplexes the display by enabling each grid
of the VFD in turn for 100s (OSC = 4MHz) with the cor-
rect segment (anode) data. The data for the next grid is
transferred to the tube drivers during the display time of
the current grid.
The controller uses an internal output map to match any
tube-driver’s shift-register grid/anode order, and is
therefore compatible with all VFD internal chip-in-glass
or external tube drivers.
The MAX6851 provides five high-current output ports,
which can be configured for a variety of functions:
The PUMP output can be configured as either an 80kHz
(OSC = 4MHz) clock intended for DC-to-DC converter
use, the 4-wire serial interface’s DOUT data output, or a
general-purpose logic output.
The PHASE1 and PHASE2 outputs can be individually
configured as either 10kHz PWM outputs (OSC =
4MHz) intended for filament driving, blink status out-
puts, or general-purpose logic outputs.
The PORT0 and PORT1 outputs can be individually
configured as either 625Hz, 1250Hz, or 2500Hz clocks
(OSC = 4MHz) intended for buzzer driving, the 4-wire
serial interface’s DOUT data output, blink or shutdown
status outputs, or general-purpose logic outputs. Figure
5 shows segment labeling for 7-, 14-, and 16-segment
displays. Figure 6 is a block diagram of the VFD tube
driver and VFD tube.
Display Modes
The MAX6851 has two display modes (Table 1), select-
ed by the M bit in the configuration register (Table 23).
The display modes trade the maximum allowable num-
ber of digits (96/2 mode) against the availability of
annunciator segments (48/1 mode). Table 2 is the reg-
ister address map.
Initial Power-Up
On initial power-up, all control registers are reset, the
display segment and annunciator data are cleared,
intensity is set to minimum, and shutdown is enabled
(Table 3).
a
b
c
d
e
f
g1
dp
g2
hi
j
k
l
m
a1
b
c
d1
e
f
g1
dp
g2
hi
j
k
l
m
a2
d2
a
b
c
d
e
f
g
dp
Figure 5. Segment Labeling for 7-, 14-, and 16-Segment Displays
SERIAL-TO-PARALLEL SHIFT REGISTER
LATCHES
VFCLK
VFDIN
VFLOAD
VFBLANK
O0
O1
O2
On-2
On-1
On-0
VFD TUBE DRIVER
VFD TUBE SIMPLIFIED
Figure 6. Block Diagram of VFD Tube Driver and VFD Tube
相關PDF資料
PDF描述
MAX687CSA-T High-Accuracy, Low-Dropout Linear Regulators
MAX687CUA-T High-Accuracy, Low-Dropout Linear Regulators
MAX687ESA-T High-Accuracy, Low-Dropout Linear Regulators
MAX688CSA-T High-Accuracy, Low-Dropout Linear Regulators
MAX688CUA-T High-Accuracy, Low-Dropout Linear Regulators
相關代理商/技術參數(shù)
參數(shù)描述
MAX6852AEE 功能描述:VFD驅動器 RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6852AEE+ 功能描述:VFD驅動器 Integrated Circuits (ICs) PMIC - Display Drivers - IC VFD CTRLR MATRIX 16QSOP RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6852AEE+T 功能描述:VFD驅動器 Integrated Circuits (ICs) PMIC - Display Drivers - IC VFD CTRLR MATRIX 16QSOP RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6852AEE-T 功能描述:VFD驅動器 RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube
MAX6853AEE 功能描述:VFD驅動器 RoHS:否 制造商:Maxim Integrated 工作電源電壓:8 V to 76 V, 3 V to 5.5 V 電源電流:0.9 mA, 700 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SOIC-20 封裝:Tube