參數資料
型號: UPD754304A
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機的小型通用紅外遙控器
文件頁數: 22/74頁
文件大?。?/td> 316K
代理商: UPD754304A
μ
PD754302, 754304, 754302(A), 754304(A)
22
From clock
generator
Φ
f
X
/2
3
f
X
/2
4
f
X
/2
6
Selector
CLOM3
0
CLOM1 CLOM0
4
CLOM
P22
output latch
Port 2 I/O mode
specification bit
PORT2.2
Bit 2 of PMGB
Internal bus
Output buffer
PCL/P22
6.3 Clock Output Circuit
The clock output circuit outputs clock pulses from the P22/PCL pin, and is used to apply for remote controller
waveform output or to supply clock pulse peripheral LSIs.
Clock output (PCL)
:
Φ
, 524, 262, 65.5 kHz (during 4.19-MHz operation)
Φ
, 750, 375, 93.8 kHz (during 6.0-MHz operation)
Figure 6-2. Clock Output Circuit Block Diagram
Remark
Special care has been taken in designing the chip so that small-width pulses may not be output
when switching clock output enable/disable.
相關PDF資料
PDF描述
UPD754304GSA 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
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UPD754302GS(A)-XXX 4-Bit Microcontroller
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