參數(shù)資料
型號(hào): UPD753204GT
廠商: NEC Corp.
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 4位單晶片微控制器
文件頁數(shù): 23/80頁
文件大?。?/td> 577K
代理商: UPD753204GT
23
μ
PD753204, 753206, 753208
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/PTO2/P22
From timer counter
(channel 2)
S
Remarks
1.
f
X
= System clock frequency
2.
Φ
= CPU clock
3.
PCC: Processor Clock Control Register
4.
One clock cycle (t
CY
) of the CPU clock is equal to one machine cycle of the instruction.
6.3 Clock Output Circuit
The clock output circuit is provided to output the clock pulses from the PCL pin (also functions as P22 or PTO2)
to the remote control wave outputs and peripheral LSIs.
Clock Output (PCL)
:
Φ
, 524, 262, 65.5 kHz (system clock: @ 4.19-MHz operation)
Φ
, 750, 375, 93.8 kHz (system clock: @ 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(guān)PDF資料
PDF描述
UPD753208 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD754202A 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD754202 4-BIT SINGLE-CHIP MICROCONTROLLERS
UPD754202GS 4-BIT SINGLE-CHIP MICROCONTROLLERS
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