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| 型号： | IS80C32-12PL |
| 厂商： | INTEGRATED SILICON SOLUTION INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 30/48页 |
| 文件大小： | 379K |
| 代理商： | IS80C32-12PL |
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IS80C52
IS80C32
36
Integrated Silicon Solution, Inc. — 1-800-379-4774
MC004-1D
11/19/98
ISSI
Table 12. Status of the External Pins During Idle and Power-down Modes.
Mode
Memory
ALE
PSEN
PORT 0
PORT 1
PORT 2
PORT 3
Idle
Internal
1
Data
Idle
External
1
Float
Data
Address
Data
Power-down
Internal
0
Data
Power-down
External
0
Float
Data
On-Chip Oscillators
The on-chip oscillator circuitry of the IS80C52/32 is a
single stage linear inverter, intended for use as a crystal-
controlled, positive reactance oscillator (Figure 24). In this
application the crystal is operated in its fundamental
response mode as an inductive reactance in parallel
resonance with capacitance external to the crystal (Figure
24). Examples of how to drive the clock with external
oscillator are shown in Figure 25.
Figure 24. Oscillator Connections
The crystal specifications and capacitance values (C1 and
C2 in Figure 24) are not critical. 20 pF to 30 pF can be used
in these positions at a12 MHz to 24 MHz frequency with
good quality crystals. (For ranges greater than 24 MHz
refer to Figure 26.) A ceramic resonator can be used in
place of the crystal in cost-sensitive applications. When a
ceramic resonator is used, C1 and C2 are normally selected
to be of somewhat higher values. The manufacturer of the
ceramic resonator should be consulted for recommendation
on the values of these capacitors.
GND
XTAL1
XTAL2
EXTERNAL
OSCILLATOR
SIGNAL
NC
Figure 25. External Clock Drive Configuration
C1
C2
GND
XTAL1
XTAL2
相关PDF资料 |
PDF描述 |
|---|---|
| IS80C32-40PLI | 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44 |
| IS80C52PL | 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQCC44 |
| IS80C732-C | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| IS80C732-M | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| IS82C55A-596 | 24 I/O, PIA-GENERAL PURPOSE, PQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IS80C32-12PLI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C32-12PQ | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C32-12PQI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C32-12R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS80C32-12W | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
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