参数资料
| 型号： | MAX6852AEE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/32页 |
| 文件大小： | 0K |
| 描述： | IC VFD CTRLR MATRIX 16QSOP |
| 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： | 真空荧光 (VF) |
| 配置： | 5 x 7（矩阵） |
| 接口： | 串行 |
| 电流 - 电源： | 3.5mA |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
4-Wire Interfaced, 5 ? 7 Matrix Vacuum-
Fluorescent Display Controller
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.
VFCLK
VFD TUBE DRIVER
Display Modes
The MAX6852 has two display modes (Table 1), select-
ed by the M bit in the configuration register (Table 21).
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
VFDIN
VFLOAD
VFBLANK
SERIAL-TO-PARALLEL SHIFT REGISTER
LATCHES
(Table 3).
Character Registers
O0
O0
O1
O1
O2
O2
ON
ON
The MAX6852 uses 48 character registers (48/1 mode)
(Table 4) or 96 character registers (96/2 mode) (Table
5) to store the 5 x 7 characters (Table 6). Each digit is
represented by 1 byte of memory. The data in the char-
acter registers does not control the character segments
directly. Instead, the register data is used to address a
character generator, which stores the data of the 128-
character font (Table 7). The lower 7 bits of the charac-
ter data (D6 to D0) select a character from the font
table. The most significant bit (MSB) of the register data
(D7) controls the DP segment of the digit; it is set to
light the DP, cleared to leave it unlit.
The character registers address maps are shown in
Table 4 (48/1 mode) and Table 5 (96/2 mode).
In 48/1 mode, the character registers use a single
address range 0x20 to {0x20 + g}, where g is the value
in the grids register (Table 24). The 48/1 mode upper
address limit, when g is 0x2F, is therefore 0x4F. The
address range 0x50 to 0x7F is used for annunciator
data in 48/1 mode.
In 96/2 mode, the character registers use two address
ranges. The first row ’ s address range is 0x20 to
{0x20 + g}. The second row ’ s address range is 0x50 to
{0x50 + g}. Therefore, in 96/2 mode, the character regis-
ters are only one contiguous memory range when a 48-
grid display is used.
Character Generator Font Mapping
The font is a 5 x 7 matrix comprising 104 characters in
ROM, and 24 user-definable characters. The selection
from the total of 128 characters is represented by the
VFD TUBE SIMPLIFIED
Figure 5. Block Diagram of VFD Tube Driver and VFD Tube
lower 7 bits of the 8-bit digit registers. The MSB, shown
as x in the ROM map (Table 7), controls the DP seg-
ment of the digit; it is set to light the DP, cleared to
leave it unlit.
The character map follows the Arial font for 96 charac-
ters in the x0100000 through x1111111 range. The first
32 characters map the 24 user-definable positions
(RAM00 to RAM23), plus eight extra common charac-
ters in ROM.
User-Defined Fonts
The 24 user-definable characters are represented by
120 entries of 7-bit data, five entries per character, and
are stored in the MAX6852 ’ s internal RAM.
The 120 user-definable font data entries are written and
read through a single register, address 0x05. An
autoincrementing font address pointer in the MAX6852
indirectly accesses the font data. The font address
pointer can be written, setting one of 120 addresses
between 0x00 and 0xF7, but cannot be read back. The
font data is written to and read from the MAX6852 indi-
rectly, using this font address pointer. Unused font
locations can be used as general-purpose scratch
RAM, noting that the font registers are only 7 bits wide,
not 8.
8
_______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| MAX685ETG+ | IC REG BOOST INV ADJ 10MA 24TQFN |
| MAX6868UK46D6L+T | IC MPU SUPERVISOR SOT23-5 |
| MAX686EEE | IC REG BOOST INV +/-27.5V 16QSOP |
| MAX6871ETJ+ | IC SEQUENCE/SUPERVISOR 32TQFN |
| MAX6872ETJ+ | IC SEQUENCE/SUPERVISOR 32TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6853AEE | 功能描述:VFD驱动器 RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
| MAX6853AEE+T | 功能描述:VFD驱动器 RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
| MAX6853AEE-T | 功能描述:VFD驱动器 RoHS:否 制造商:Maxim Integrated 工作电源电压:8 V to 76 V, 3 V to 5.5 V 电源电流:0.9 mA, 700 uA 最大工作温度:+ 125 C 封装 / 箱体:SOIC-20 封装:Tube |
| MAX6854UK16D1+T | 功能描述:监控电路 Single nPower Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6854UK16D1-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。