參數(shù)資料
型號(hào)： HD4074054H
廠商： Hitachi,Ltd.
英文描述： 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
中文描述： 4位單片機(jī)（4位單片微計(jì)算機(jī)）
文件頁數(shù)： 30/101頁
文件大?。?/td> 610K
代理商： HD4074054H
HD404054 Series/HD404094 Series
30
Internal Oscillator Circuit
A block diagram of the clock generation circuit is shown in figure 17. As shown in table 18, a ceramic
oscillator can be connected to OSC
1
and OSC
2
. The system oscillator can also be operated by an external
clock.
After
RESET
input or after stop mode has been cancelled, the division ratio of the system clock can be
selected as 1/4 or 1/32 by setting the SEL pin level.
1/4 division ratio: Connect SEL to V
CC
.
1/32 division ratio: Connect SEL to GND.
OSC
2
OSC
1
System
oscillator
1/4 or
1/32
division
circuit
*
Timing
generator
circuit
CPU with ROM,
RAM, registers,
flags, and I/O
Peripheral
function
interrupt
f
cyc
t
cyc
f
OSC
φ
CPU
φ
PER
Note:
*
1/4 or 1/32 division ratio can be selected by SEL pin.
Figure 17 Clock Generation Circuit
OSC
2
GND
RESET
OSC
1
RE
0
TEST
GND
Figure 18 Typical Layout of Ceramic Oscillator
相關(guān)PDF資料
PDF描述
HD40A4054 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
HD40A4358 4-bit HMCS400-Series microcomputer
HD404354 4-bit HMCS400-Series microcomputer
HD404354H 4-bit HMCS400-Series microcomputer
HD404354S 4-bit HMCS400-Series microcomputer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4074054S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074094H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074094S 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:microcomputer designed to increase program productivity
HD4074224FP01 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074224FP02 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:CMOS 4-bit Single-Chip Microcomputers with the same architecture as the HMCS400 Series
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