- 您现在的位置：买卖IC网 > PDF目录225356 > TSC87C52-12IGD (ATMEL CORP) 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, CDIP40 PDF资料下载
参数资料
| 型号： | TSC87C52-12IGD |
| 厂商： | ATMEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, CDIP40 |
| 封装： | 0.600 INCH, CERAMIC, DIP-40 |
| 文件页数： | 21/24页 |
| 文件大小： | 181K |
| 代理商： | TSC87C52-12IGD |
TSC87C52
6
Rev. D – December 14, 1998
New and Enhanced Features
In comparison to the original 80C52, the TSC87C52 implements some new and enhanced features. The new features
are the Power Off Flag, the ONCE mode and the ALE disabling. The enhanced features are located in the UART and
the Timer 2.
Power Off Flag
The Power Off Flag allows the user to distinguish between a ‘cold start’ reset and a ‘warm start’ reset.
A cold start reset is one that is coincident with VCC being turned on to the device after it was turned off. A warm start
reset occurs while VCC is still applied to the device and could be generated for example by an exit from Power Down.
The Power Off Flag (POF) is located in PCON at bit location 4 (see Table 1). POF is set by hardware when VCC rises
from 0 to its nominal voltage. The POF can be set or cleared by software allowing the user to determine the type of
reset.
Table 1 PCON – Power Control Register (87h)
765432
10
SMOD1
SMOD0
–
POF
GF1
GF0
PD
IDL
Symbol
Description
SMOD1
Serial Port Mode bit 1, new name of SMOD bit
Set to select double baud rate in mode 1,2 or 3.
SMOD0
Serial Port Mode bit 0
Set to to select FE bit in SCON.
Clear to select SM0 bit in SCON.
–
Reserved
Do not write 1 in this bit.
POF
Power Off Flag
Set by hardware when VCC rises from 0 to its nominal voltage. Can also be set by software.
Clear by software to recognize next reset type.
GF1
General purpose Flag
Set by software for general purpose usage.
Clear by software for general purpose usage.
GF0
General purpose Flag
Set by software for general purpose usage.
Clear by software for general purpose usage.
PD
Power Down mode bit
Set to enter power down mode.
Clear by hardware when reset occurs.
IDL
Idle mode bit
Set to enter idle mode.
Clear by hardware when interrupt or reset occur.
The reset value of PCON is 00XX 0000b.
ONCE Mode
The ONCE mode facilitates testing and debugging of systems using TSC87C52 without the TSC87C52 having to be
removed from the circuit. The ONCE mode is invoked by driving certain pins of the TSC87C52, the following sequence
must be exercised.
D Pull ALE low while the device is in reset (RST high) and PSEN is high.
D Hold ALE low as RST is deactivated.
相关PDF资料 |
PDF描述 |
|---|---|
| TSC87C52-20AJD | 8-BIT, UVPROM, 20 MHz, MICROCONTROLLER, CDIP40 |
| TSC87C52-25CJD | 8-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CDIP40 |
| TSC87C52-12ABD | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, PQCC44 |
| TSC87C52-12AIR | 8-BIT, OTPROM, 12 MHz, MICROCONTROLLER, CQCC44 |
| TSC87C52-25CHD | 8-BIT, OTPROM, 25 MHz, MICROCONTROLLER, CQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TSC888AILT | 功能描述:电流灵敏放大器 Sense Amplifier 20 Gain RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| TSC888BILT | 功能描述:电流灵敏放大器 Sense Amplifier 50 Gain RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| TSC888CILT | 功能描述:电流灵敏放大器 Sense Amplifier 100 Gain RoHS:否 制造商:Texas Instruments 通道数量: 共模抑制比（最小值）:110 dB 输入补偿电压:80 uV 电源电压-最大:5.5 V 电源电压-最小:2.7 V 电源电流:350 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-16 封装:Reel |
| TSC9 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:EURO TERMINAL BLOCKS |
| TSC903 | 制造商:Laird Technologies Inc 功能描述:CLIP TO-3P 制造商:Laird Technologies Inc 功能描述:CLIP, TO-3P 制造商:Laird Technologies Inc 功能描述:CLIP, TO-3P; External Width:6.5mm; SVHC:No SVHC (18-Jun-2012); Isolation Voltage:1kV; Length:30mm; Material:Steel; Package / Case:TO-3P, TO-218, TO-247; Packages Cooled:TO-3P, TO-218, TO-247; Pad Thickness Max:0.5mm; Panel Thickness ;RoHS Compliant: Yes 制造商:Laird Technologies Inc 功能描述:CLIP, TO-3P; External Width:6.5mm; SVHC:No SVHC (18-Jun-2012); Isolation Voltage:1kV; Length:30mm; Material:Steel; Package / Case:TO-3P, TO-218, TO-247; Packages Cooled:TO-218, TO-247, TO-3P; Pad Thickness Max:0.5mm; Panel Thickness ;RoHS Compliant: Yes |
发布紧急采购，3分钟左右您将得到回复。