參數(shù)資料
型號(hào)： HT1670
廠商： Holtek Semiconductor Inc.
英文描述： 128x32 LCD Controller for I/O MCU
中文描述： 128x32 LCD控制器的I / O控制器
文件頁(yè)數(shù)： 5/19頁(yè)
文件大?。?/td> 174K
代理商： HT1670
Pad Description
Pad No.
Pad Name
I/O
Description
1~42
96~181
SEG86~SEG127
SEG0~SEG85
O
LCD segment outputs
43~58
80~95
COM31~COM16
COM0~COM15
O
LCD common outputs, under 144 16 command mode, COM16~COM31 will
share to SEG128~SEG143. COM31/SEG128, COM30/SEG129, COM29/
SEG130....., COM18/SEG141, COM17/SEG142, COM16/SEG143
59
CS
I
Chip selection input with pull-high resistor. When the CS is logic high, the
data and command read from or write to the HT1670 are disabled. The serial
interface circuit is also reset. But if the CS is at a logic low level and is input to
the CS pad, the data and command transmission between the host controller
and the HT1670 are all enabled.
60
RD
I
READ clock input with pull-high resistor. Data in the RAM of the HT1670 are
clocked out on the falling edge of the RD signal. The clocked out data will ap-
pear on the data line. The host controller can use the next rising edge to latch
the clocked out data.
61
WR
I
WRITE clock input with pull-high resistor. Data on the DATA line are latched
into the HT1670 on the rising edge of the WR signal.
62~65
DB0~DB3
I/O
Parallel data input/output with a pull-high resistor
66
VSS
Negative power supply for logic circuit, ground
67
68
OSCI
OSCO
I
O
The OSCI and OSCO pads are connected to a 32.768kHz crystal in order to
generate a system clock. If the system clock comes from an external clock
source, the external clock source should be connected to the OSCI pad. But
if an on-chip RC oscillator is selected, the OSCI and OSCO pads can be left
open.
69
VDD
Positive power supply for logic circuit
70, 79
VLCD
I
Power supply for LCD driver circuit
71
IRQ
O
Time base or Watchdog Timer overflow flag, NMOS open drain output.
72, 73
BZ, BZ
O
2kHz or 4kHz frequency output pair (tristate output buffer)
74~78
T1~T4, T000
I
Vary bias current pin
It is usually not connected
Absolute Maximum Ratings
Supply Voltage...........................V
SS
0.3V to V
SS
+5.5V
Storage Temperature............................ 50 C to 125 C
Input Voltage.............................V
SS
0.3V to V
DD
+0.3V
Operating Temperature........................... 25 C to 75 C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
HT1670
Rev. 1.10
5
September 17, 2004
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT1670_10 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:128x32 LCD Controller for I/O MCU
HT16C21 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 20*4 / 16*8 LCD Driver Controller
HT16C22 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 44*4 LCD Controller Driver
HT16C23 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 56*4 / 52*8 LCD Driver Controller
HT16C24 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:RAM Mapping 72*4/68*8/60*16 LCD Driver Controller
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