參數(shù)資料
型號: HT16220
廠商: Holtek Semiconductor Inc.
英文描述: RAM Mapping 32 x 8 LCD Controller for I/O μC(存儲器映射、用于I/O接口微機(jī)的32 x 8模式LCD控制器)
中文描述: 內(nèi)存映射32 × 8 LCD控制器的I / O微控制(存儲器映射,用于的I / O接口微機(jī)的32 × 8模式液晶顯示控制器)
文件頁數(shù): 16/17頁
文件大小: 148K
代理商: HT16220
Name
ID
Command Code
D/C
Function
Def.
F32
1 0 0
101X-0101-X
C
Time base clock output: 32Hz
The WDT time-out flag after: 1/8 s
F64
1 0 0
101X-0110-X
C
Time base clock output: 64Hz
TheWDTtime-outflagafter:1/16s
F128
1 0 0
101X-0111-X
C
Time base clock output: 128Hz
TheWDTtime-outflagafter:1/32s
Yes
TEST
1 0 0
1110-0000-X
C
Test mode, user don t use.
NORMAL
1 0 0
1110-0011-X
C
Normal mode
Yes
Note: X : Don t care
A5~A0 : RAM address
D3~D0 : RAM data
D/C : Data/Command mode
Def. : Power on reset default
All the bold forms, namely
1 1 0
,
1 0 1
, and
1 0 0
, are mode commands. Of these,
1 0 0
indicates the
command mode ID. If successive commands have been issued, the command mode ID except for the
first command will be omitted. The source of the tone frequency and of the time base/WDT clock fre-
quency can be derived from a 32.768kHz crystal oscillator or an external 32kHz clock. Calculation of
the frequency is based on the system frequency sources as stated above. It is recommended that the
host controller should initialize the HT16220 after power on reset, for power on reset may fail, which
in turn leads to malfunctioning of the HT16220.
HT16220
16
January 10, 2001
相關(guān)PDF資料
PDF描述
HT1622 RAM Mapping 32 x 8 LCD Controller for I/O μC(存儲器映射、用于I/O接口微機(jī)的32 x 8模式LCD控制器)
HT1623 RAM Mapping 48x8 LCD Controller for I/O C
HT1625 RAM Mapping 64x 8 LCD Controller for I/O C
HT1626 RAM Mapping 48x16 LCD Controller for I/O C
HT1627 RAM Mapping 64x16 LCD Controller for I/O C
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT16220(100QFP) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference
HT16220_04 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 328 LCD Controller for I/O MCU
HT16220_09 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 328 LCD Controller for I/O MCU
HT1623 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 48x8 LCD Controller for I/O MCU
HT1623(100QFP) 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference